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An ''N''-acylethanolamine (NAE) is a type of
fatty acid amide Fatty acid amides (FAAs) are amides formed from a fatty acid and an amine. In nature, many FAAs have ethanolamine as the amine component. Also known as ''N''-acylethanolamines, they contain the functionality RC(O)N(H)CH2CH2OH. A well known ex ...
where one of several types of
acyl groups In chemistry, an acyl group is a moiety derived by the removal of one or more hydroxyl groups from an oxoacid, including inorganic acids. It contains a double-bonded oxygen atom and an alkyl group (). In organic chemistry, the acyl group (IUPAC ...
is linked to the nitrogen atom of
ethanolamine Ethanolamine (2-aminoethanol, monoethanolamine, ETA, or MEA) is an organic chemical compound with the formula or . The molecule is bifunctional, containing both a primary amine and a primary alcohol. Ethanolamine is a colorless, viscous liquid w ...
, and highly metabolic formed by intake of
essential fatty acids Essential fatty acids, or EFAs, are fatty acids that humans and other animals must ingest because the body requires them for good health but cannot synthesize them. Only two fatty acids are known to be essential for humans: alpha-linolenic ac ...
through
diet Diet may refer to: Food * Diet (nutrition), the sum of the food consumed by an organism or group * Dieting, the deliberate selection of food to control body weight or nutrient intake ** Diet food, foods that aid in creating a diet for weight loss ...
by 20:4, n-6 and 22:6, n-3 fatty acids, and when the body is physically and psychologically active, and the endocannabinoid signaling system (ECS) is the major pathway by which NAEs exerts its physiological effects in animal cells with similarities in plants, and the metabolism of NAEs is an integral part of the ECS. These
amide In organic chemistry, an amide, also known as an organic amide or a carboxamide, is a compound with the general formula , where R, R', and R″ represent organic groups or hydrogen atoms. The amide group is called a peptide bond when it i ...
s conceptually can be formed from a
fatty acid In chemistry, particularly in biochemistry, a fatty acid is a carboxylic acid with an aliphatic chain, which is either saturated or unsaturated. Most naturally occurring fatty acids have an unbranched chain of an even number of carbon atoms, ...
and ethanolamine with the release of a molecule of
water Water (chemical formula ) is an Inorganic compound, inorganic, transparent, tasteless, odorless, and Color of water, nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living ...
, but the known biological synthesis uses a specific phospholipase D to cleave the phospholipid unit from ''N''-acylphosphatidylethanolamines. Another route relies on the
transesterification In organic chemistry, transesterification is the process of exchanging the organic group R″ of an ester with the organic group R' of an alcohol. These reactions are often catalyzed by the addition of an acid or base catalyst. The reaction ca ...
of acyl groups from
phosphatidylcholine Phosphatidylcholines (PC) are a class of phospholipids that incorporate choline as a headgroup. They are a major component of biological membranes and can be easily obtained from a variety of readily available sources, such as egg yolk or soybea ...
by an ''N''-acyltransferase (NAT) activity. The suffixes ''-
amine In chemistry, amines (, ) are compounds and functional groups that contain a basic nitrogen atom with a lone pair. Amines are formally derivatives of ammonia (), wherein one or more hydrogen Hydrogen is the chemical element wi ...
'' and ''-
amide In organic chemistry, an amide, also known as an organic amide or a carboxamide, is a compound with the general formula , where R, R', and R″ represent organic groups or hydrogen atoms. The amide group is called a peptide bond when it i ...
'' in these names each refer to the single nitrogen atom of ethanolamine that links the compound together: it is termed "amine" in ethanolamine because it is considered as a free terminal nitrogen in that subunit, while it is termed "amide" when it is considered in association with the adjacent
carbonyl group In organic chemistry, a carbonyl group is a functional group composed of a carbon atom double-bonded to an oxygen atom: C=O. It is common to several classes of organic compounds, as part of many larger functional groups. A compound containi ...
of the acyl subunit. Names for these compounds may be encountered with either "amide" or "amine" varying by author.


Examples

Examples of ''N''-acylethanolamines include:The list and references provided are based on background discussion in *
Anandamide Anandamide (ANA), also known as ''N''-arachidonoylethanolamine (AEA), is a fatty acid neurotransmitter. Anandamide was the first endocannabinoid to be discovered: it participates in the body's endocannabinoid system by binding to cannabinoid r ...
(''N''-arachidonoylethanolamine; NAE) or arachidonoylethanolamine (AEA: C22 H37 NO2; 20: 4, ω-6) is the amide of arachidonic acid (C20H32 O2; 20:4, ω-6) and
ethanolamine Ethanolamine (2-aminoethanol, monoethanolamine, ETA, or MEA) is an organic chemical compound with the formula or . The molecule is bifunctional, containing both a primary amine and a primary alcohol. Ethanolamine is a colorless, viscous liquid w ...
(MEA: C2H7NO). It is the ligand of both
cannabinoid receptor Cannabinoid receptors, located throughout the body, are part of the endocannabinoid system a class of cell membrane receptors in the G protein-coupled receptor superfamily. As is typical of G protein-coupled receptors, the cannabinoid recep ...
s and
vanilloid receptor TRPV is a family of transient receptor potential cation channels (TRP channels) in animals. All TRPVs are highly calcium selective. TRP channels are a large group of ion channels consisting of six protein families, located mostly on the plasma ...
that attenuates pain sensation. Where binding to cannabinoid receptors is coupled to nitric oxide (NO) release in the
central nervous system The central nervous system (CNS) is the part of the nervous system consisting primarily of the brain and spinal cord. The CNS is so named because the brain integrates the received information and coordinates and influences the activity of all p ...
of
invertebrates Invertebrates are a paraphyletic group of animals that neither possess nor develop a vertebral column (commonly known as a ''backbone'' or ''spine''), derived from the notochord. This is a grouping including all animals apart from the chordat ...
and in peripheral
immune cells White blood cells, also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders. All white blood cells are produced and derived from mult ...
of both invertebrates and humans. * ''N''- Palmitoylethanolamine (PEA: C18H37NO2; 16:0) is the amide of
palmitic acid Palmitic acid (hexadecanoic acid in IUPAC nomenclature) is a fatty acid with a 16-carbon chain. It is the most common saturated fatty acid found in animals, plants and microorganisms.Gunstone, F. D., John L. Harwood, and Albert J. Dijkstra. The L ...
(C16H32O2; 16:0) and ethanolamine. It is a ligand at CB2 receptors. It has
anti-inflammatory Anti-inflammatory is the property of a substance or treatment that reduces inflammation or swelling. Anti-inflammatory drugs, also called anti-inflammatories, make up about half of analgesics. These drugs remedy pain by reducing inflammation as o ...
activity and also attenuates pain sensation in mammals. NAE 16:0 has also been identified in plants including corn, and seeds of cotton, okra, tomato, castor bean, soya bean and peanuts, but its physiological functions remain unknown, * ''N''- Oleoylethanolamine (OEA: C20H39NO2; 18:1, ω-9) is the amide of
oleic acid Oleic acid is a fatty acid that occurs naturally in various animal and vegetable fats and oils. It is an odorless, colorless oil, although commercial samples may be yellowish. In chemical terms, oleic acid is classified as a monounsaturated omeg ...
(C18H34O2; 18:1) and ethanolamine. It has
anorexic Anorexia nervosa, often referred to simply as anorexia, is an eating disorder characterized by low weight, food restriction, body image disturbance, fear of gaining weight, and an overpowering desire to be thin. ''Anorexia'' is a term of Gre ...
effects and enables fat breakdown by stimulating
PPAR-alpha Peroxisome proliferator-activated receptor alpha (PPAR-α), also known as NR1C1 (nuclear receptor subfamily 1, group C, member 1), is a nuclear receptor protein functioning as a transcription factor that in humans is encoded by the ''PPARA'' gen ...
. In plants, NAE 18:1 is present abundantly in dry seeds and levels decline during seed imbibition, but its physiological functions are yet to be elucidated. In
human Humans (''Homo sapiens'') are the most abundant and widespread species of primate, characterized by bipedalism and exceptional cognitive skills due to a large and complex brain. This has enabled the development of advanced tools, cultu ...
s, plasma OEA levels are also found positively correlated with positive mood and
emotion Emotions are mental states brought on by neurophysiology, neurophysiological changes, variously associated with thoughts, feelings, behavioral responses, and a degree of pleasure or suffering, displeasure. There is currently no scientific ...
s. Material was copied from this source, which is available under
Creative Commons Attribution 4.0 International License
OEA acting mostly at peroxisome proliferator‐activated receptor‐α (PPAR‐α) nuclear receptors and, to some extent,
TRPV1 The transient receptor potential cation channel subfamily V member 1 (TrpV1), also known as the capsaicin receptor and the vanilloid receptor 1, is a protein that, in humans, is encoded by the ''TRPV1'' gene. It was the first isolated member of th ...
channels. * ''N-'' Stearoylethanolamine (SEA: C20H41NO2; 18:0) is the amide of stearic acid (C18H36O2) and ethanolamine (MEA: C2H7NO). It has pro-
apoptotic Apoptosis (from grc, ἀπόπτωσις, apóptōsis, 'falling off') is a form of programmed cell death that occurs in multicellular organisms. Biochemical events lead to characteristic cell changes ( morphology) and death. These changes incl ...
activity. It operates independently of the known cannabinoid and vanilloid receptors targeted by anandamide. It is an inhibitor of the
sphingolipid Sphingolipids are a class of lipids containing a backbone of sphingoid bases, a set of aliphatic amino alcohols that includes sphingosine. They were discovered in brain extracts in the 1870s and were named after the mythological sphinx because o ...
signaling pathway, via specific
ceramidase Ceramidase (, ''acylsphingosine deacylase'', ''glycosphingolipid ceramide deacylase'') is an enzyme which cleaves fatty acids from ceramide, producing sphingosine (SPH) which in turn is phosphorylated by a sphingosine kinase to form sphingosine- ...
inhibition (ceramidase converts
ceramide Ceramides are a family of waxy lipid molecules. A ceramide is composed of N-acetyl sphingosine and a fatty acid. Ceramides are found in high concentrations within the cell membrane of eukaryotic cells, since they are component lipids that make ...
to
sphingosine Sphingosine (2-amino-4-trans-octadecene-1,3-diol) is an 18-carbon amino alcohol with an unsaturated hydrocarbon chain, which forms a primary part of sphingolipids, a class of cell membrane lipids that include sphingomyelin, an important phos ...
) and blocks the effects of
TNF Tumor necrosis factor (TNF, cachexin, or cachectin; formerly known as tumor necrosis factor alpha or TNF-α) is an adipokine and a cytokine. TNF is a member of the TNF superfamily, which consists of various transmembrane proteins with a homolog ...
- and arachidonic acid on intracellular Ca2+ concentration. * N-Linoleoyl ethanolamide (MEA: C20H37NO2; 18:2, ω-6) or Anandamide (18:2, n-6) is the ethanolamide of
linoleic acid Linoleic acid (LA) is an organic compound with the formula COOH(CH2)7CH=CHCH2CH=CH(CH2)4CH3. Both alkene groups are ''cis''. It is a fatty acid sometimes denoted 18:2 (n-6) or 18:2 ''cis''-9,12. A linoleate is a salt or ester of this acid. ...
(LA: C18 H32 O2; 18: 2, ω-6) and its metabolized incorporated
ethanolamine Ethanolamine (2-aminoethanol, monoethanolamine, ETA, or MEA) is an organic chemical compound with the formula or . The molecule is bifunctional, containing both a primary amine and a primary alcohol. Ethanolamine is a colorless, viscous liquid w ...
(MEA: C2H7NO), is the first natural inhibitor of
fatty acid amide hydrolase Fatty acid amide hydrolase or FAAH (, oleamide hydrolase, anandamide amidohydrolase) is a member of the serine hydrolase family of enzymes. It was first shown to break down anandamide in 1993. In humans, it is encoded by the gene ''FAAH''.; Fu ...
(FAAH) discovered, also derives from
hydroperoxides Hydroperoxides or peroxols are compounds containing the hydroperoxide functional group (ROOH). If the R is organic, the compounds are called organic hydroperoxides. Such compounds are a subset of organic peroxides, which have the formula ROOR. O ...
of NAE 20:4 (AEA) or its linoleoyl analogues by
lipoxygenase Lipoxygenases () are a family of (non-heme) iron-containing enzymes most of which catalyze the dioxygenation of polyunsaturated fatty acids in lipids containing a cis,cis-1,4- pentadiene into cell signaling agents that serve diverse roles as aut ...
action. * ''N-'' Docosahexaenoyl ethanolamine (DHEA: C24H37NO2; 22:6, ω-3), or Anandamide (22:6, n-3) "synaptamide", is the amide of
docosahexaenoic acid Docosahexaenoic acid (DHA) is an omega-3 fatty acid that is a primary structural component of the human brain, cerebral cortex, skin, and retina. In physiological literature, it is given the name 22:6(n-3). It can be synthesized from alpha-lin ...
(DHA: C22H32O2; 22:6, ω-3) and ethanolamine (MEA: C2H7NO). It can act at CB2 receptors, and have anti-proliferative effects on prostate cancer cell lines and promotes
synaptogenesis Synaptogenesis is the formation of synapses between neurons in the nervous system. Although it occurs throughout a healthy person's lifespan, an explosion of synapse formation occurs during early brain development, known as exuberant synaptogenes ...
, neurogenesis and neuritogenesis, and as an endogenous metabolite of DHA, it promotes
brain development The development of the nervous system, or neural development (neurodevelopment), refers to the processes that generate, shape, and reshape the nervous system of animals, from the earliest stages of embryonic development to adulthood. The fiel ...
and function. *''N''- Docosatetraenoylethanolamine (DEA: C24H41NO2; 22:4,ω-6) act on the CB1 receptor, and possible CB2. *''N''- Eicosapentaenoylethanolamide (EPEA: C22H35NO2; 20:5, ω-3) or Anandamide (20:5, n-3). It is the amide of
eicosapentaenoic acid Eicosapentaenoic acid (EPA; also icosapentaenoic acid) is an omega-3 fatty acid. In physiological literature, it is given the name 20:5(n-3). It also has the trivial name timnodonic acid. In chemical structure, EPA is a carboxylic acid with a 20-c ...
(EPA: C20H30O2; 20:5, n-3), that can act on CB2 receptors in combination with PPAR-gamma to decrease LPS induced adipocyte IL-6 and
MCP-1 ''For the ICAO airport code see Candle Lake Airpark, for the diradical compound see Dichlorocarbene.'' The chemokine (C-C motif) ligand 2 (CCL2) is also referred to as monocyte chemoattractant protein 1 (MCP1) and small inducible cytokine A2. CC ...
levels. *''N''- homo-gamma-linolenoylethanolamine, or Anandamide (20:3,n-6) (HGLEA: C22H39NO2; 20:3,ω-6). These bioactive lipid amides are generated by the membrane enzyme NAPE-PLD, and natural
bile acids Bile acids are steroid acids found predominantly in the bile of mammals and other vertebrates. Diverse bile acids are synthesized in the liver. Bile acids are conjugated with taurine or glycine residues to give anions called bile salts. Prima ...
regulate this essential process. An ''in vivo'' active NAPE-PLD inhibitor called LEI-401 was found to be CNS-active, and modulated NAE biosynthesis. It had similar effects as a cannabinoid CB1 receptor antagonist, which could be reversed by co-treatment with a FAAH inhibitor. At least two pathways distinct from NAPE-PLD have been proposed as metabolic pathways for NAE 20:4 (AEA) formation. One pathway involves the double-''O''- deacylation of
NAPEs ''N''-Acylphosphatidylethanolamines (NAPEs) are hormones released by the small intestine into the bloodstream when it processes fat. NAPEs travel to the hypothalamus in the brain and suppress appetite. This mechanism could be relevant for treating ...
by α,β-hydrolase (ABHD4) to form glycerophospho-''N''-acylethanolamines (GP-NAEs), followed by conversion of these intermediates to NAEs by glycero
phosphodiesterase A phosphodiesterase (PDE) is an enzyme that breaks a phosphodiester bond. Usually, ''phosphodiesterase'' refers to cyclic nucleotide phosphodiesterases, which have great clinical significance and are described below. However, there are many ot ...
-1 (GDE1). Another pathway utilizes a phospholipase C (PLC) to produce phopho-''N''-arachidonoylethanolamine (pAEA) from NAPE, widely found in phospholipids, followed by conversion of pAEA into NAE 20:4 (AEA) by phosphatases such as PTPN22 and
SHIP1 Src homology 2 (SH2) domain containing inositol polyphosphate 5-phosphatase 1 (SHIP1) is an enzyme with phosphatase activity. SHIP1 is structured by multiple domain and is encoded by the ''INPP5D'' gene in humans. SHIP1 is expressed predominantly ...
. The effects of NAE 20:4 (AEA) and another
endocannabinoid Cannabinoids () are several structural classes of compounds found in the cannabis plant primarily and most animal organisms (although insects lack such receptors) or as synthetic compounds. The most notable cannabinoid is the phytocannabinoid tet ...
2-Arachidonoylglycerol 2-Arachidonoylglycerol (2-AG) is an endocannabinoid, an endogenous agonist of the CB1 receptor and the primary endogenous ligand for the CB2 receptor. It is an ester formed from the omega-6 fatty acid arachidonic acid and glycerol. It is present ...
(2-AG: C23H38O4; 20:4, ω-6) is found to be enhanced by “ entourage compounds”, NAEs that inhibit their
hydrolysis Hydrolysis (; ) is any chemical reaction in which a molecule of water breaks one or more chemical bonds. The term is used broadly for substitution, elimination, and solvation reactions in which water is the nucleophile. Biological hydrolys ...
via substrate competition, and thereby prolong their action. These compounds include ''N''-palmitylethanolamide (PEA, NAE 16:0), ''N''-oleoylethanolamide (SEA, NAE 18:0), and ''cis''-9-octadecenoamide (OEA, oleamide, NAE 18:1). Text was copied from this source, which is available under
Creative Commons Attribution 4.0 International License
All are members of the endocannabinoidome, a complex
lipid Lipids are a broad group of naturally-occurring molecules which includes fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E and K), monoglycerides, diglycerides, phospholipids, and others. The functions of lipids includ ...
signaling system composed of more than 100 of fatty acid-derived mediators and their receptors, its
anabolic Anabolism () is the set of metabolic pathways that construct molecules from smaller units. These reactions require energy, known also as an endergonic process. Anabolism is the building-up aspect of metabolism, whereas catabolism is the breaking ...
and
catabolic Catabolism () is the set of metabolic pathways that breaks down molecules into smaller units that are either oxidized to release energy or used in other anabolic reactions. Catabolism breaks down large molecules (such as polysaccharides, lipid ...
enzyme Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products ...
s of more than 50
protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, res ...
s, which are deeply involved in the control of
energy metabolism Bioenergetics is a field in biochemistry and cell biology that concerns energy flow through living systems. This is an active area of biological research that includes the study of the transformation of energy in living organisms and the study of ...
and its
pathological Pathology is the study of the causes and effects of disease or injury. The word ''pathology'' also refers to the study of disease in general, incorporating a wide range of biology research fields and medical practices. However, when used in th ...
deviations, as well as
immunosuppression Immunosuppression is a reduction of the activation or efficacy of the immune system. Some portions of the immune system itself have immunosuppressive effects on other parts of the immune system, and immunosuppression may occur as an adverse reacti ...
, and some NAE members, do not activate the CB1 and CB2 receptors efciently, but instead activate other receptors (e.g. peroxisome proliferator-activated receptors (PPAR)- α/ γ,
G-protein coupled receptors G protein-coupled receptors (GPCRs), also known as seven-(pass)-transmembrane domain receptors, 7TM receptors, heptahelical receptors, serpentine receptors, and G protein-linked receptors (GPLR), form a large group of protein family, evolution ...
(GPR) 55, 110,
118 118 may refer to: *118 (number) *AD 118 *118 BC *118 (TV series) *118 (film) *118 (Tees) Corps Engineer Regiment *118 (Tees) Field Squadron, Royal Engineers See also *11/8 (disambiguation) *Oganesson Oganesson is a synthetic chemical element wi ...
,
119 119 may refer to: * 119 (number), a natural number * 119 (emergency telephone number) * AD 119, a year in the 2nd century AD * 119 BC, a year in the 2nd century BC * 119 (album), 2012 * 119 (NCT song) *119 (Show Me the Money song) * 119 (film), a ...
,
TRPV1 The transient receptor potential cation channel subfamily V member 1 (TrpV1), also known as the capsaicin receptor and the vanilloid receptor 1, is a protein that, in humans, is encoded by the ''TRPV1'' gene. It was the first isolated member of th ...
channels), known to counteract metabolic disorders in animal models, by gut bacterial families (e.g.
Veillonellaceae The Veillonellaceae are a family of the Clostridia, formerly known as Acidaminococcaceae. Bacteria in this family are grouped together mainly based on genetic studies, which place them among the Bacillota. Supporting this placement, several sp ...
, Peptostreptococcaceae and Akkermansiaceae) associated with variations in most NAEs and omega3-derived 2-
monoacylglycerols Monoglycerides (also: acylglycerols or monoacylglycerols) are a class of glycerides which are composed of a molecule of glycerol linked to a fatty acid via an ester bond. As glycerol contains both primary and secondary alcohol groups two differen ...
(2‑MAGs), congeners of 2-AG, as gut microbiota communities and the host endocannabinoidome also seem to be interrelated in a mutual crosstalk controlling whole body metabolism. NAE's are also involved in modulation of different physiological processes such as pain,
stress Stress may refer to: Science and medicine * Stress (biology), an organism's response to a stressor such as an environmental condition * Stress (linguistics), relative emphasis or prominence given to a syllable in a word, or to a word in a phrase ...
,
anxiety Anxiety is an emotion which is characterized by an unpleasant state of inner turmoil and includes feelings of dread over anticipated events. Anxiety is different than fear in that the former is defined as the anticipation of a future threat wh ...
, appetite,
cardiovascular The blood circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the entire body of a human or other vertebrate. It includes the cardiovascular system, or vascular system, tha ...
function and
inflammation Inflammation (from la, inflammatio) is part of the complex biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants, and is a protective response involving immune cells, blood vessels, and molec ...
. A study suggest the presence of an endogenous NAE tone control
emotion Emotions are mental states brought on by neurophysiology, neurophysiological changes, variously associated with thoughts, feelings, behavioral responses, and a degree of pleasure or suffering, displeasure. There is currently no scientific ...
al behavior.
Raphael Mechoulam Raphael Mechoulam ( he, רפאל משולם, bg, Рафаел Мешулам; born 5 November 1930) is an Israeli organic chemist and professor of Medicinal Chemistry at the Hebrew University of Jerusalem in Israel. Mechoulam is best known for h ...
that described and named Anandamide in 1992. He said: Beyond
vertebrate Vertebrates () comprise all animal taxa within the subphylum Vertebrata () (chordates with backbones), including all mammals, birds, reptiles, amphibians, and fish. Vertebrates represent the overwhelming majority of the phylum Chordata, with c ...
s NAEs are also found to have signaling roles in more primitive
organism In biology, an organism () is any living system that functions as an individual entity. All organisms are composed of cells (cell theory). Organisms are classified by taxonomy into groups such as multicellular animals, plants, and ...
, implicated as metabolic signals that coordinate nutrient status and lifespan determination in '' Caenorhabditis elegans'', and detected in organisms as diverse as
yeast Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom. The first yeast originated hundreds of millions of years ago, and at least 1,500 species are currently recognized. They are estimated to constit ...
(''
Saccharomyces cerevisiae ''Saccharomyces cerevisiae'' () (brewer's yeast or baker's yeast) is a species of yeast (single-celled fungus microorganisms). The species has been instrumental in winemaking, baking, and brewing since ancient times. It is believed to have b ...
''),
freshwater fish Freshwater fish are those that spend some or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%. These environments differ from marine conditions in many ways, especially the difference in levels of ...
(''
Esox lucius The northern pike (''Esox lucius'') is a species of carnivorous fish of the genus ''Esox'' (the pikes). They are typical of brackish and fresh waters of the Northern Hemisphere (''i.e.'' holarctic in distribution). They are known simply as a p ...
'' and ''
Cyprinus carpio The Eurasian carp or European carp (''Cyprinus carpio''), widely known as the common carp, is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia.Fishbase''Cyprinus carpio'' Linnaeus, 1758/ref>Arkive The ...
''), bivalve mollusc (''
Mytilus galloprovincialis The Mediterranean mussel (''Mytilus galloprovincialis'') is a species of bivalve, a marine mollusc in the family Mytilidae. It is an invasive species in many parts of the world, and also an object of aquaculture. Systematics ''Mytilus gall ...
''),
protist A protist () is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor (the last eukaryotic common ancestor), the exc ...
s ('' Tetrahymena thermophila''),
slime mold Slime mold or slime mould is an informal name given to several kinds of unrelated eukaryotic organisms with a life cycle that includes a free-living single-celled stage and the formation of spores. Spores are often produced in macroscopic mul ...
(''
Dictyostelium discoideum ''Dictyostelium discoideum'' is a species of soil-dwelling amoeba belonging to the phylum Amoebozoa, infraphylum Mycetozoa. Commonly referred to as slime mold, ''D. discoideum'' is a eukaryote that transitions from a collection of unicellular ...
''),
microbes A microorganism, or microbe,, ''mikros'', "small") and ''organism'' from the el, ὀργανισμός, ''organismós'', "organism"). It is usually written as a single word but is sometimes hyphenated (''micro-organism''), especially in olde ...
such as
bacteria Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one Cell (biology), biological cell. They constitute a large domain (biology), domain of prokaryotic microorganisms. Typically a few micrometr ...
,
fungi A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from ...
, and
virus A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Since Dmitri Ivanovsk ...
es, are all organisms that appear to regulate their endogenous NAE levels via similar enzymatic machinery as mammalian vertebrates, show a widespread occurrence of NAEs, from single-celled organisms to humans, and a highly conserved role for this group of
lipids Lipids are a broad group of naturally-occurring molecules which includes fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E and K), monoglycerides, diglycerides, phospholipids, and others. The functions of lipids include ...
in
cell signaling In biology, cell signaling (cell signalling in British English) or cell communication is the ability of a cell to receive, process, and transmit signals with its environment and with itself. Cell signaling is a fundamental property of all cellula ...
. Studies in amphibians and
bird Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweig ...
s show that endocannabinoid signaling may function as a behavioral switch, allowing redirection from less- to more-essential behaviors in response to emergent
environmental change Environmental change is a change or disturbance of the environment most often caused by human influences and natural ecological processes. Environmental changes include various factors, such as natural disasters, human interferences, or animal in ...
s, and provide evidence of cannabinoid modulation of aggression,
emesis Vomiting (also known as emesis and throwing up) is the involuntary, forceful expulsion of the contents of one's stomach through the mouth and sometimes the nose. Vomiting can be the result of ailments like food poisoning, gastroenteriti ...
,
feeding behavior Feeding is the process by which organisms, typically animals, obtain food. Terminology often uses either the suffixes -vore, -vory, or -vorous from Latin ''vorare'', meaning "to devour", or -phage, -phagy, or -phagous from Greek φαγε ...
,
locomotor activity Animal locomotion, in ethology, is any of a variety of methods that animals use to move from one place to another. Some modes of locomotion are (initially) self-propelled, e.g., running, swimming, jumping, flying, hopping, soaring and gliding. Th ...
, reproductive behaviors,
vocal learning Vocal learning is the ability to modify acoustic and syntactic sounds, acquire new sounds via imitation, and produce vocalizations. "Vocalizations" in this case refers only to sounds generated by the vocal organ (mammalian larynx or avian syrinx) as ...
,
sensory perception Perception () is the organization, identification, and interpretation of sensory information in order to represent and understand the presented information or environment. All perception involves signals that go through the nervous system ...
and
stress response The fight-or-flight or the fight-flight-or-freeze response (also called hyperarousal or the acute stress response) is a physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival. It was first des ...
s.


NAE and the reproductive system

Several researches have found, that NAE, and especially 20:4 anandamide (AEA: C22 H37 NO2; 20: 4, ω-6), is a part of the
reproductive system The reproductive system of an organism, also known as the genital system, is the biological system made up of all the anatomical organs involved in sexual reproduction. Many non-living substances such as fluids, hormones, and pheromones are als ...
, Text was copied from this source, which is available under
Creative Commons Attribution 2.0 Generic (CC BY 2.0)
license.
and play a fundamental role for a healthy and successful
pregnancy Pregnancy is the time during which one or more offspring develops (gestation, gestates) inside a woman, woman's uterus (womb). A multiple birth, multiple pregnancy involves more than one offspring, such as with twins. Pregnancy usually occur ...
. A 2006 report from the Pediatrics Department at
Vanderbilt University Vanderbilt University (informally Vandy or VU) is a private research university in Nashville, Tennessee. Founded in 1873, it was named in honor of shipping and rail magnate Cornelius Vanderbilt, who provided the school its initial $1-million ...
characterized NAE 20:4 (AEA) as “an emerging concept in female reproduction”, because they found a “cannabinoid sensor” mechanism to influence several crucial steps during early pregnancy. The Vanderbilt research team termed this “endocannabinoid signaling in preimplantation embryo development and activation”, because, one of the first things the
fertilized Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, syngamy and impregnation, is the fusion of gametes to give rise to a new individual organism or offspring and initiate its development. Proce ...
embryo must do, is to attach itself to the lining of the
uterus The uterus (from Latin ''uterus'', plural ''uteri'') or womb () is the organ in the reproductive system of most female mammals, including humans that accommodates the embryonic and fetal development of one or more embryos until birth. The ...
, and without becoming attached to the
uterine wall The uterus (from Latin ''uterus'', plural ''uteri'') or womb () is the organ in the reproductive system of most female mammals, including humans that accommodates the embryonic and fetal development of one or more embryos until birth. The ute ...
, which forms the
umbilical cord In placental mammals, the umbilical cord (also called the navel string, birth cord or ''funiculus umbilicalis'') is a conduit between the developing embryo or fetus and the placenta. During prenatal development, the umbilical cord is physiologi ...
, there will be no pregnancy. NAE 20:4 (AEA) play a key role, because, for the embryo to become attached to the lining of the uterus, a particular amount (temporary reduction by high
Fatty acid amide hydrolase Fatty acid amide hydrolase or FAAH (, oleamide hydrolase, anandamide amidohydrolase) is a member of the serine hydrolase family of enzymes. It was first shown to break down anandamide in 1993. In humans, it is encoded by the gene ''FAAH''.; Fu ...
FAAH) of NAE 20:4 (AEA), present at the uterine lining (endometrium), is necessary for the fertilized embryo can attach itself to the uterine wall. NAE 20:4 (AEA) uses the CB1 receptors, that are at high levels on the blastocyst (fertilized egg), to this attachment. So the amount of NAE 20:4 (AEA) directs the outcome of the attachment to the uterine wall via CB1, and thereby, the outcome of pregnancy, by synchronizing
trophoblast The trophoblast (from Greek : to feed; and : germinator) is the outer layer of cells of the blastocyst. Trophoblasts are present four days after fertilization in humans. They provide nutrients to the embryo and develop into a large part of the p ...
differentiation and uterine preparation to the receptive state. However, low FAAH expression and high NAE 20:4 (AEA) levels at the interimplantation sites, prior to successful implantation, have been reported, and a later possible miscarriage, as AEA levels are inversely correlated with FAAH levels in peripheral blood mononuclear cells (PMNCs) and FAAH levels are found lower in women who consequently miscarry compared with those who progress beyond the
first trimester Pregnancy is the time during which one or more offspring develops ( gestates) inside a woman's uterus (womb). A multiple pregnancy involves more than one offspring, such as with twins. Pregnancy usually occurs by sexual intercourse, but ...
. A consequence also fund in women undergoing ''in vitro''
fertilization Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, syngamy and impregnation, is the fusion of gametes to give rise to a new individual organism or offspring and initiate its development. Proce ...
and embryo transfer, as low activity of FAAH in PMNCs and high plasma AEA levels after embryo transfer show failure to achieve a successful pregnancy. As well, high AEA level also inhibits C19MC miRNA cluster, BeWo trophoblast cell proliferation, in a dose-dependent manner, ''via'' the Cannabinoid receptor type 2, CB2 receptor, suggest that FAAH acts as a barrier to the AEA Mother, maternal-Fetus, fetal transfer. So, high plasma AEA levels can be used as a marker of early pregnancy loss in patients with threatened miscarriage, as altered modulation of the ECS contribute to the Spontaneous abortion, spontaneous pregnancy loss. This is in line with a study of 50 women, where NAE 20:4 (AEA) hydrolase activity was lower in the seven women who Miscarriage, miscarried than in the 43 who did not (60.43 pmol/min per mg protein [SD 29.34] vs 169.60 pmol/min per mg protein [30.20], and another study showing that all 15 women in the low AEA hydrolase group had miscarriages, compared with one of the 105 women with high concentrations at or above the threshold of hydrolase. An earlier 2004 research in to the course of ectopic pregnancy, a result of embryo retention in the fallopian tube, found that decoupled cannabinoid receptor CB1, can cause retention of embryos in the mouse Oviducal, oviduct, and lead to pregnancy failure, as either silencing or amplification of NAE 20:4 (AEA) signaling ''via'' CB1 receptors causes oviductal retention or blastocyst incompetence for implantation. The report estimates that aberrant cannabinoid signaling impedes coordinated oviductal smooth muscle Muscle contraction, contraction and relaxation, which are crucial to normal oviductal embryo transport. This was also seen in wild-type mice treated with methanandamide (AM-356; C23H39NO2, 20:4, n6), and thereby concluded, that a colocalization of CB1 in the oviduct muscularis implicate a basal endocannabinoid tone of NAE 20:4 (AEA) is needed for oviductal motility and for normal journey of embryos into the uterus. Another 2004 study published in the ''American Journal of Obstetrics and Gynecology'' find NAE 20:4 (AEA) and the phytocannabinoid Tetrahydrocannabinol, Δ9-tetrahydrocannabinol (THC: C21 H30 O2), that can mimic NAE 20:4 (AEA) by direct activation at CB1 and CB2 receptors, and able to switch from Agonist-antagonist, agonist to antagonist depending on firing rate, to exert a direct relaxant effect on human pregnant myometrium in vitro, ''in vitro'', with equal potency for both compounds, which was mediated through the CB1 receptor. This means that the middle layer of the uterine wall is modulated by NAE 20:4 (AEA) as well. Likewise, there is also demonstrated CB1 expression in the first trimester placenta characterized by a Space, spatial-temporal modulation. But, at Birth, term, there is found lack of FAAH and high CB1 expression at placental Chorionic villi, villous tissue of non-laboring compared with Childbirth, laboring. After birth, CB1 receptors appears to be critical for Breastfeeding, milk sucking by Infant, newborn, as it apparently activate Mouth, oral-motor musculature, by 2-Arachidonoylglycerol, 2-AG (C23H38O4; 20:4 ω-6) in the breast milk, activation, as elevated levels of 2-AG modulate infant appetite and health, as well as NAE 20:4 (AEA) act as an Neuroprotection, neuroprotectant, also by providing retrograde signaling in the developing Postpartum period, postnatal brain, with observations suggest that children may be less prone to psychoactive side effects of Δ9-tetrahydrocannabinol (THC: C21H30O2) or endocannabinoids than adults, as very low density of CB1, suggest a promising future for Cannabinoid, cannabinoids in Pediatrics, pediatric medicine for conditions including non-organic Failure to thrive, failure-to-thrive and cystic fibrosis.


Mood

As the Euphoria, euphoric feeling described after running, called the "Neurobiological effects of physical exercise, runners high" is, at least in part, due to increased circulating endocannabinoids (eCBs), and these lipid signaling molecules are involved in Reward system, reward, appetite, Mood (psychology), mood, memory and neuroprotection, an analysis of endocannabinoid concentrations and moods after singing, Dance, dancing, exercise and reading in healthy volunteers, showed that singing increased plasma levels of anandamide (AEA) by 42%, palmitoylethanolamine (PEA) by 53% and oleoylethanolamine (OEA) by 34%, and improved positive mood and Broaden-and-build, emotions. Dancing did not affect eCB levels, but decreased negative mood and emotions. Cycling increased OEA levels by 26%, and reading increased OEA levels by 28%. All the ethanolamines were positively correlated with heart rate. As so, the plasma OEA levels were positively correlated with positive mood and emotions, and AEA levels were seen positively correlated with Hunger (motivational state), satiation. NAE and endocannabinoids is an integral component of
stress Stress may refer to: Science and medicine * Stress (biology), an organism's response to a stressor such as an environmental condition * Stress (linguistics), relative emphasis or prominence given to a syllable in a word, or to a word in a phrase ...
recovery, both centrally and peripherally, through regulation of the Hypothalamic–pituitary–adrenal axis, HPA axis, and reduction in circulating NAE 20:4 (AEA) content in Major depressive disorder, major depression, and exposure to stress, is found to increase inflammatory markers by down-regulating the circulating content of the endogenous anti-inflammatory molecules, through their activation of Peroxisome proliferator-activated receptor alpha, PPAR-α, palmitoylethanolamine (PEA: C18H37NO2; 16:0) and Oleoylethanolamine (OEA: C20H39NO2; 18:1, ω-9), as NAE catabolism is accelerated by stress and by the same FAAH catabolic pathway. Administration of CB1 Receptor antagonist, receptor antagonists to humans has been found to increase indices of Depression (mood), depression and
anxiety Anxiety is an emotion which is characterized by an unpleasant state of inner turmoil and includes feelings of dread over anticipated events. Anxiety is different than fear in that the former is defined as the anticipation of a future threat wh ...
. Accordingly, the deficit in circulating endocannabinoids and activation of CB1, documented in individuals with major depression, may contribute to the emotional Sequela, sequelae associated with this disease. And it is therfore speculated, that this reduction in circulating endocannabinoid and NAE content in depression may be associated with the increased rates of
inflammation Inflammation (from la, inflammatio) is part of the complex biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants, and is a protective response involving immune cells, blood vessels, and molec ...
, cardiovascular disease and autoimmune dysfunction seen in this disease.


Longevity

A study of 42 eighty years old (Ageing, octogenarians) humans living in the east-central mountain area of Sardinia, a High-Longevity Zone (HLZ) in Italy, have found, that the endocannabinoidome related circulating NAEs and familiar fatty acids are associated with a Maximum life span, longer
human Humans (''Homo sapiens'') are the most abundant and widespread species of primate, characterized by bipedalism and exceptional cognitive skills due to a large and complex brain. This has enabled the development of advanced tools, cultu ...
life or longevity, as increased conjugated linoleic acid (CLA: C18H32O2; 18: 2, n-6) and heptadecanoic acid (C17H34O2; 17:0), elevated palmitoleic acid (POA; C16H30O2; 16:1, n-7), a conjugate acid of a palmitoleate (C16H29O2; 16:1, n-7), where n-7 fatty acids are precursors for the production of omega-4 fatty acids like palmitolinoleic acid (16:2), and a significantly increased level of NAE 22:6 (DHEA: C24H37NO2; 22:6, n-3), the metabolite of Docosahexaenoic acid, DHA (C22H32O2; 22:6, n-3), and the two endocannabinoids NAE 20:4 (AEA: C22 H37 NO2; 20: 4, ω-6) and 2-Arachidonoylglycerol, 2-arachidonoyl-glycerol (2-AG: C23H38O4; 20:4, n-6), as well of increased NAE 18:1 (OEA: C20H39NO2; 18:1, ω-9), the amide of
palmitic acid Palmitic acid (hexadecanoic acid in IUPAC nomenclature) is a fatty acid with a 16-carbon chain. It is the most common saturated fatty acid found in animals, plants and microorganisms.Gunstone, F. D., John L. Harwood, and Albert J. Dijkstra. The L ...
(C16H32O2; 16:0) and
ethanolamine Ethanolamine (2-aminoethanol, monoethanolamine, ETA, or MEA) is an organic chemical compound with the formula or . The molecule is bifunctional, containing both a primary amine and a primary alcohol. Ethanolamine is a colorless, viscous liquid w ...
(MEA: C2H7NO), and increase of 2-linoleoyl-glycerol (2-LG; C21H38O4; 18:2, n-6), derived from
linoleic acid Linoleic acid (LA) is an organic compound with the formula COOH(CH2)7CH=CHCH2CH=CH(CH2)4CH3. Both alkene groups are ''cis''. It is a fatty acid sometimes denoted 18:2 (n-6) or 18:2 ''cis''-9,12. A linoleate is a salt or ester of this acid. ...
(LA: C18H32O2; 18:2, n-6), can indicate a metabolic pattern potentially protective from adverse chronic conditions, and show a suitable physiological metabolic pattern, that may counteract the adverse stimuli leading to age-related disorders such as neurodegenerative and metabolic diseases. It is found that 3T3-L1 adipocytes Bioconversion, convert
eicosapentaenoic acid Eicosapentaenoic acid (EPA; also icosapentaenoic acid) is an omega-3 fatty acid. In physiological literature, it is given the name 20:5(n-3). It also has the trivial name timnodonic acid. In chemical structure, EPA is a carboxylic acid with a 20-c ...
(EPA: C20H30O2; 20:5, ω-3) to NAE 20:5 (EPEA: C22H35NO2; 20:5, ω-3) or Anandamide (20:5, n-3) and
docosahexaenoic acid Docosahexaenoic acid (DHA) is an omega-3 fatty acid that is a primary structural component of the human brain, cerebral cortex, skin, and retina. In physiological literature, it is given the name 22:6(n-3). It can be synthesized from alpha-lin ...
(DHA: C22H32O2; 22:6, ω-3) to NAE 22:6 (DHEA: C24H37NO2; 22:6, ω-3), or Anandamide (22:6, n-3). This conversion to EPEA and DHEA decrease IL-6 and
MCP-1 ''For the ICAO airport code see Candle Lake Airpark, for the diradical compound see Dichlorocarbene.'' The chemokine (C-C motif) ligand 2 (CCL2) is also referred to as monocyte chemoattractant protein 1 (MCP1) and small inducible cytokine A2. CC ...
levels, and the combined incubations with PPAR-gamma and CB2 antagonists, suggest a role of these receptors in mediating the reduction of IL-6 by DHEA. These results are in line with the hypothesis, that in addition to other pathways, this formation of NAEs may contribute to the biological activity of n-3 Polyunsaturated fatty acid, PUFAs, and different targets, including the endocannabinoid system, may be involved in the Immunotherapy, immune-modulating activity of Fish oil, fish-oil derived NAEs.


The importance of a low ratio of omega-6 to omega-3 essential fatty acids

Studies have found, that humans Human evolution, evolved on a Food, diet with a ratio of Omega-6 fatty acid, omega-6 (n-6) to Omega-3 fatty acid, omega-3 (n-3) essential fatty acids (EFA) of about 1:1, whereas in today's Western pattern diet, Western diets the ratio is 15/1–16.7/1, or even more. The excessive amounts of n-6 polyunsaturated fatty acids (PUFA) and a very high n-6/n-3 ratio, promote the pathogenesis of many diseases, including Cardiovascular disease, cardiovascular disease, cancer, and Inflammatory disease, inflammatory and Autoimmune disease, autoimmune diseases, whereas a low n-6/n-3 ratio exert suppressive effects. However, it is found impotent, that this low ratio, should change a bit, depending on disease, as the ratio of 2.5/1 reduce Rectum, rectal cell Cell proliferation, proliferation in patients with colorectal cancer, and 2–3/1 suppress inflammation in patients with rheumatoid arthritis, 4/1 is optimum for prevention of cardiovascular disease, showing a 70% decrease in total Death, mortality, and 5/1 have a beneficial effect on patients with asthma, whereas 10/1 have adverse consequences, indicate, that the optimal ‘low ratio’, may vary with the specific disease. The World Health Organization (WHO) estimate hemp, a culture Carbon dioxide, CO2 negative, - a crop that is capable in the carbon cycle of removing more CO2 from the ambient than it emits, where production of biomass produce between 8 and 12 tons of CO2, but seize between 10 and 15 tons per hectare, with the possibility to sequester up to 22 tons of CO2 from the increased dry matter of the stem, where 80% of atmospheric carbon is sequestered and stored, by a nitrogen Fertilizer, fertilization between 0 and 120 kg per hectare, as having what is considered to be an optimal 3:1 balance of omega 6 to omega 3 essential fatty acids, and where Hemp oil, hempseed oil is the only one that is in perfect balance according to what the human body needs – 3:1, and a Pound (mass), pound (454 gram) of Hemp protein, hemp seed can provide all the
protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, res ...
, essential fatty acids, and dietary fiber necessary for human survival for two weeks, or 33 gram a day. And their absence has been found responsible for the development of a wide range of diseases such as Metabolic disorder, metabolic disorders, Cardiovascular disease, cardiovascular disorders, Inflammation, inflammatory processes, Viral disease, viral infections, certain types of cancer and Autoimmune disease, autoimmune disorders. Biosynthesis, Synthesis of PUFA, LC-PUFAs in Human, humans and many other Eukaryote, eukaryotes starts with: * Linoleic acid (LA: C18 H32 O2; 18: 2-n6) → Linoleoyl-CoA desaturase, Δ6-desaturation (removing two hydrogen atoms, creating a double bond and a bend in the fatty acid) → Gamma-Linolenic acid, ''γ''-linolenic acid (GLA: C18H30O2; 18:3-n6) → Δ6-specific elongase (introducing two carbons and four hydrogens) → Dihomo-γ-linolenic acid, Dihomo-gamma-linolenic acid DGLA: C20H34O2; 20:3-n6) → FADS1, Δ5-desaturase → arachidonic acid (AA: C20H32O2; 20:4-n6) → also endocannabinoids. * Alpha-Linolenic acid, α-Linolenic acid (ALA: C18H30O2; 18:3-n3) → Δ6-desaturation → stearidonic acid (SDA: C18H28O2; 18:4-n3) and/or → Δ6-specific elongase → eicosatetraenoic acid (ETA: C20H32O2; 20:4-n3) → Δ5-desaturase →
eicosapentaenoic acid Eicosapentaenoic acid (EPA; also icosapentaenoic acid) is an omega-3 fatty acid. In physiological literature, it is given the name 20:5(n-3). It also has the trivial name timnodonic acid. In chemical structure, EPA is a carboxylic acid with a 20-c ...
(EPA: C20H30O2; 20:5-n3). By a Δ17-desaturase, gamma-Linolenic acid (GLA: C18H30O2; 18:3-n6) can be further converted to stearidonic acid (SDA: C18H28O2; 18:4-n3), Dihomo-γ-linolenic acid, dihomo-gamma-linolenic acid (DHGLA/DGLA: C20H34O2; 20:3-n6) to eicosatetraenoic acid (ETA: C20H32O2; 20:4-n3; omega-3 Arachidonic acid) and arachidonic acid (AA: C20H32O2; 20:4-n6) to
eicosapentaenoic acid Eicosapentaenoic acid (EPA; also icosapentaenoic acid) is an omega-3 fatty acid. In physiological literature, it is given the name 20:5(n-3). It also has the trivial name timnodonic acid. In chemical structure, EPA is a carboxylic acid with a 20-c ...
(EPA: C20H30O2; 20:5-n3), respectively. * Fatty acid, Fatty acids with at least 20 carbons (C20) and three double bonds (20:3) bind to CB1 receptors. * Arachidonic acid (AA) is also the catalyst to the formation of the two main Endocannabinoid system, endocannabinoids,
Anandamide Anandamide (ANA), also known as ''N''-arachidonoylethanolamine (AEA), is a fatty acid neurotransmitter. Anandamide was the first endocannabinoid to be discovered: it participates in the body's endocannabinoid system by binding to cannabinoid r ...
(AEA) and 2-Arachidonoylglycerol, 2-arachidonoylglycerol (2-AG). *
Anandamide Anandamide (ANA), also known as ''N''-arachidonoylethanolamine (AEA), is a fatty acid neurotransmitter. Anandamide was the first endocannabinoid to be discovered: it participates in the body's endocannabinoid system by binding to cannabinoid r ...
(AEA: C22H37 NO2; 20:4,n-6) is an ''N''-acylethanolamine resulting from the formal Condensation reaction, condensation of the Carboxylic acid, carboxy group of arachidonic acid (AA: C20H32O2; 20:4-n6) with the Amino acid, amino group of
ethanolamine Ethanolamine (2-aminoethanol, monoethanolamine, ETA, or MEA) is an organic chemical compound with the formula or . The molecule is bifunctional, containing both a primary amine and a primary alcohol. Ethanolamine is a colorless, viscous liquid w ...
(C2H7 NO), bind preferably to CB1 receptors. * 2-Arachidonoylglycerol, 2-arachidonoylglycerol (2-AG: C23H38O4; 20:4-n6) is an endogenous agonist of the Cannabinoid receptor, cannabinoid receptors (CB1 and CB2), and the physiological Ligand (biochemistry), ligand for the cannabinoid CB2 receptor. It is an ester formed from omega-6-arachidonic acid (AA: C20H32O2; 20:4-n6) and glycerol (C3H8O3).


Metabolic production of NAEs

Diets in mammals, containing 20:4,''n''−6 and 22:6'',n''−3, are found to increase several biologically active NAEs in brain Homogeneity and heterogeneity, homogenates as metabolic products, like 20:4'',n''−6 NAE (4-fold), 20:5'',n''−3 NAE (5-fold), and 22:5'',n''−3 and 22:6,''n''−3 NAE (9- to 10-fold). The increase in all of the metabolic NAEs is regarded biologically important, because NAEs having
fatty acid In chemistry, particularly in biochemistry, a fatty acid is a carboxylic acid with an aliphatic chain, which is either saturated or unsaturated. Most naturally occurring fatty acids have an unbranched chain of an even number of carbon atoms, ...
s with at least 20 carbons and three double bonds bind to CB1 receptors, and endogenously released NAE 20:4 and 2-Arachidonoylglycerol, 2-arachidonylglycerol (2-AG: C23H38O4; 20:4,n-6), the ester metabolic formed from omega-6- arachidonic acid (AA: C20H32O2; 20:4, n-6) and glycerol (C3H8O3), are also found to activate CB2 receptors in addition, where 2-AG is the physiological ligand. The
hydrolysis Hydrolysis (; ) is any chemical reaction in which a molecule of water breaks one or more chemical bonds. The term is used broadly for substitution, elimination, and solvation reactions in which water is the nucleophile. Biological hydrolys ...
of NAE to free fatty acid (FFA) and ethanolamine (MEA) in animals, is catalyzed by
fatty acid amide hydrolase Fatty acid amide hydrolase or FAAH (, oleamide hydrolase, anandamide amidohydrolase) is a member of the serine hydrolase family of enzymes. It was first shown to break down anandamide in 1993. In humans, it is encoded by the gene ''FAAH''.; Fu ...
(FAAH) or by a ''N''-acylethanolamine-hydrolyzing acid amidase (NAAA), and the Polyunsaturated fat, polyunsaturated NAEs such as NAE 18:2, NAE 18:3, or NAE 20:4 can also be oxygenated via
lipoxygenase Lipoxygenases () are a family of (non-heme) iron-containing enzymes most of which catalyze the dioxygenation of polyunsaturated fatty acids in lipids containing a cis,cis-1,4- pentadiene into cell signaling agents that serve diverse roles as aut ...
(LOX) or cyclooxygenase (COX), to produce ethanolamide oxylipins, like prostaglandin ethanolamides (prostamide) by Prostaglandin-endoperoxide synthase 2, COX-2, with various potential Biological activity, bioactivities that may have enhanced affinity with cannabinoid receptors in comparison to their respective non-oxygenated NAEs, as well as to oxygenated eicosanoid ethanolamides, prostaglandins, and leukotrienes, all believed to be important signaling compounds. The major COX-2 derived prostanoid product from NAE 20:4 (AEA) are prostaglandin E2 (PGE2) ethanolamide (PGE2-EA; prostamide E2) and Prostaglandin D2, PGD2 ethanolamide (PGD2-EA; prostamide D2), might have many important functions, as PGE2 and PGD2 are pro-inflammatory mediators responsible for the induction of
inflammation Inflammation (from la, inflammatio) is part of the complex biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants, and is a protective response involving immune cells, blood vessels, and molec ...
, PGE2-EA and PGD2-EA are contrary both growth inhibitory and can induce apoptosis, as well as that NAE 20:4 (AEA) and/or its prostamide metabolites in the renal medulla, may represent medullipin and function as a regulator of body fluid and the mean arterial pressure (MAP). Fatty acid amide hydrolase (FAAH) is the main degrading enzyme of NAE 20:4 (AEA) and NAE 18:1 (OEA), which have opposite effects on food intake and Energy homeostasis, energy balance. AEA, an endogenous ligand of CB1 cannabinoid receptors, enhances food intake and energy storage, whereas OEA binds to Peroxisome proliferator-activated receptor, peroxisome proliferator-activated receptors-α to reduce food intake and promoting lipolysis, thereby FAAH deficiency promotes energy storage and enhances the motivation for food, through the enhancement of AEA levels rather than promoting the Anorectic, anorexic effects of OEA. Tetrahydrocannabinol (THC: C21 H30 O2) is found to lower production of NAE 20:4 (AEA) and 2-AG, that is synthesized in an on-demand manner when needed for activation, by a Phase (pharmacology), biphasic response after THC injection reaching maximal values at 30 min., where AEA increased slightly from 0.58 ± 0.21 ng/ml at baseline to 0.64 ± 0.24 ng/ml, and 2-AG from 7,60 ± 4,30 ng/ml to 9,50 ± 5,90 ng/ml, and after reaching maximal concentrations, EC plasma levels decreased markedly to a nadir of 300 min after THC administration to 0.32 ± 0.15 ng/ml for AEA, and 5,50 ± 3,01 ng/ml for 2-AG, and returned to near baseline levels until 48 hours after the experiment, in 25 healthy volunteers who received a large intravenous dose of THC (0.10 mg/kg). Insulin (medication), Insulin medication and intraoperative doses of insulin is also found, but not recognized by companies Novo Nordisk, producing and selling medication to general public also as a slimming formula like Semaglutide, Wegovy, to get its anorectic effect by the increase of FAAH activity, which, beside of other NAE's, degrade NAE 20:4 (AEA), suggest that insulin may play a key role in the obesity-linked dysregulation of the adipose ECS at the gene level. This is in line with a study that find low-carbohydrate and high-fat diet, called Low Carb High Fat-diet (Low-carbohydrate diet, LCHF), a possible treatment strategy for Type 2 diabetes, type 2 diabetes mellitus (T2DM) and Non-alcoholic fatty liver disease, nonalcoholic fatty liver disease (NAFLD), as they find lower Blood sugar level, blood sugar and insulin intake, and a better Mood (psychology), mood and energy of the 165 participants with T2DM, that replaced rye bread, flour and pasta products with fleawort seed shells, Hemp protein, hemp seeds and pofiber (potato fiber), butter, oil, meat and fat, some has cut insulin consumption by half. However, the greater improvements in Diabetes management, glycemic control and reduced weight, were not sustained 9 months after start, could show a Homeostatic feeling, homeostatic reaction. A FAAH 385A mutant alleles have been found to have a direct effect on elevated plasma levels of NAE 20:4 (AEA) and related NAEs in humans, and biomarkers that may indicate risk for severe obesity that suggest novel Endocannabinoid system, ECS obesity treatment strategies, as leptin increases the FAAH activity and reduces NAE 20:4 (AEA) signaling, particularly within the hypothalamus, to promote a suppression of Eating, food intake, a mechanism that is lost in diet-induced obesity and modulated by a human genetic variant (C385A) of the ''FAAH'' gene. The cannabinoid type 1 receptors (CB1) and their endogenous ligands, the endocannabinoids, present in peripheral organs, such as liver, white adipose tissue, muscle, and pancreas, where it regulate Lipid signaling, lipid and glucose homeostasis, and dysregulation of it, has been associated with the development of obesity, characterized by chronic mild
inflammation Inflammation (from la, inflammatio) is part of the complex biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants, and is a protective response involving immune cells, blood vessels, and molec ...
, and its sequelae, such as dyslipidemia and diabetes, are involved in modulating food intake and the motivation to consume Palatability, palatable food. NAE 20:4 related THC treatment have shown to increase culture protein content and reduced methyl-(3)H-thymidine incorporation, and cells treated with THC underwent adipogenesis shown by the expression of PPARγ and had increased lipid accumulation. Basal and IP-stimulated Lipolysis, lipolyses were also inhibited by THC, and the effects on methyl-(3)H-thymidine incorporation and lipolysis seem to be mediated through CB1- and CB2-dependent pathways. THC did also decrease NAPE-PLD, the
enzyme Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products ...
that catalyzes and converts ordinary
lipid Lipids are a broad group of naturally-occurring molecules which includes fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E and K), monoglycerides, diglycerides, phospholipids, and others. The functions of lipids includ ...
s into chemical signals like NAE 20:4 (AEA) and NAE 18:1 (OEA), in preadipocytes and increased adiponectin and TGFβ transcription in adipocytes, results that show the ECS interferes with adipocyte biology and may contribute to adipose Tissue remodeling, tissue (AT) remodeling. And this stimulation of adiponectin production and inhibition of lipolysis from THC may be in favor of improved insulin sensitivity under cannabinoid influence. A WIN 55,212-2, full agonist at the CB1 receptor, CB1 receptor is found able to up-regulate Peroxisome proliferator-activated receptor gamma, PPARy, and increased (+50%) glucose uptake, the Protein targeting, translocation of glucose transporter 4, and intracellular Calcium in biology, calcium in Adipocyte, fat cells, that indicate a role for the local endocannabinoids in the regulation of Carbohydrate metabolism, glucose metabolism in human adipocytes and suggest a role in channelling excess energy fuels to adipose tissue in obese humans. This is consistent with the decreased prevalence of diabetes seen in marijuana users, and significantly reduced body mass index (Body mass index, BMI) and rates of obesity in ''Cannabis'' users, as endocannabinoids modulate pancreatic β-cells function, Cell proliferation, proliferation, and survival, as well as insulin production, Beta cell, secretion, and Insulin resistance, resistance, where animal and human research suggest that increased activity of the endocannabinoid system, may lead to insulin resistance, glucose intolerance and obesity. Consistent with the associated reduced prevalence of non-alcoholic fatty liver disease (NAFLD) among cannabis users, that find significantly lower NAFLD prevalence compared to non-users, i.e. 15% lower in non-dependent users and 52% lower in dependent users, and dependent patients had 43% significantly lower prevalence of NAFLD compared to non-dependent patients. In addition to metabolism by FAAH, COX-2 and LOXs, NAE 20:4 (AEA) can also undergo oxidation by several of human cytochrome P450 (CYPs) enzymes, resulting in various oxidized lipid species, some of which have biological relevance as CYP-derived epoxides, that can act as a potent agonist of CB2 receptors. NAE 20:4 (AEA: C22H37NO2) which is similar in structure to N-Arachidonylglycine, N-arachidonoyl glycine (Nagly: C22H35NO3 - a carboxylic acid C-terminus, COOH) are metabolically interconnected, as Redox, oxidation of the Hydroxy group, hydroxyl group of NAE 20:4 (AEA) leads to NAgly, prefering G protein-coupled receptor, G-protein coupled receptor (GPR)
118 118 may refer to: *118 (number) *AD 118 *118 BC *118 (TV series) *118 (film) *118 (Tees) Corps Engineer Regiment *118 (Tees) Field Squadron, Royal Engineers See also *11/8 (disambiguation) *Oganesson Oganesson is a synthetic chemical element wi ...
, with a molecular structure, that are found of pharmacological interest, as region one confers a high degree of specificity of action, as Polyunsaturated fatty acid, polyunsaturated residues produce molecules with analgesic and
anti-inflammatory Anti-inflammatory is the property of a substance or treatment that reduces inflammation or swelling. Anti-inflammatory drugs, also called anti-inflammatories, make up about half of analgesics. These drugs remedy pain by reducing inflammation as o ...
action, of which Saturated fat, saturated Saturated and unsaturated compounds, structures, are inactive. Region two is related to metabolic stability as NAgly is degraded by FAAH activity. And last, region 3, the amino acid residue, can have an effect on the analgesic and anti-inflammatory activities depending on steric factors and the Chirality, chiral nature of the amino acid. It is found that Fatty acid, long-chain fatty acid Conjugation (biochemistry), conjugates from the metabolic hydroxyl oxidation product of the phytocannabinoid, THC ( C21 H30 O2), 11-Hydroxy group, hydroxy-THC (11-Hydroxy-THC, 11-OH-THC: C21H30O3) are proposed to be a form in which THC may be stored within Tissue (biology), tissues. And the last cytochrome P450 oxidation product of THC afford the non-psychoactive and long-living 11-nor-9-Carboxylic acid, carboxy-THC (11-Nor-9-carboxy-THC, THC-COOH: C21H28O4) as main metabolite, that in some authors’ opinion, are insufficiently characterized, as an acid metabolite seen as a final product in both Cannabis, cannabis-plants and mammals, with there main unanswered questions, "Could any of the pharmacological effects observed for THC be attributed to Tetrahydrocannabinolic acid, THCA (C22H30O4) and/or THC-COOH, and could THC also be a potential Prodrug, pro-drug to another pharmacological entity?". Nonsteroidal anti-inflammatory drug, NSAIDs that COX-2 inhibitor, inhibit COX2, may find its Medicine, medical influence from the cannabinoid system, either by inhibiting the break down of NAE 20:4 (AEA) by FAAH (i.e. ibuprofen, Indometacin, indomethacin, flurbiprofen, ibu–am5), or by inhibiting a possible Intracellular transport, intracellular transporter of endocannabinoids (i.e. Paracetamol, acetaminophen). The phytocannabinoid THC is found to have twenty times the anti-inflammatory potency of aspirin and twice that of hydrocortisone, but in contrast to NSAIDs, it demonstrates no COX inhibition at physiological concentrations. Another of the main phytocannabinoids, cannabidiol (CBD: C21 H30 O2) is found to produce a significant increase in serum NAE 20:4 (AEA) levels, by inhibiting the Intracellular transport, intracellular degradation catalyzed by FAAH, suggest the inhibition of NAE 20:4 (AEA) deactivation may contribute to the Psychosis, antipsychotic effects of CBD, potentially representing a mechanism in the treatment of schizophrenia, with a markedly superior Side effect, side-effect profile, compare to amisulpride, a potent antipsychotic. CBD were also seen to elevate serum levels of the non-cannabimimetic lipid mediators, NAE 16:0 (PEA) and NAE 18:1 (OEA), but amisulpride did not. FAAH inhibitors are seen to both increase Alcoholic drink, alcohol consumption (NAE 20:4; AEA) and prevent against oxidative stress caused by Binge drinking, binge ethanol consumption, and as NAE 16:0 (PEA) and NAE 18:1 (OEA), through the endocannabinoidome-related peroxisome proliferator-activated receptor-α (Ppar-α, PPAR-α) is involved in the actions of NAEs with no endocannabinoid activity, have been reported to exhibit Neuroprotection, neuroprotective effects, suggest a strengthening of the Endocannabinoid system, ECS may reflect a Homeostasis, homeostatic Homeostatic plasticity, mechanism to prevent the Neurotoxicity, neurotoxic effects induced by Alcohol (drug), alcohol with a relevant role of other non-cannabinoid Congener (chemistry), congeners in the alcohol exposure, and the further activation in response to the negative Affect (psychology), affective Affective neuroscience, state, like the
anxiety Anxiety is an emotion which is characterized by an unpleasant state of inner turmoil and includes feelings of dread over anticipated events. Anxiety is different than fear in that the former is defined as the anticipation of a future threat wh ...
, associated to alcohol Alcohol withdrawal syndrome, withdrawal. Or poorer Recall (memory), recall of Speech, verbal and nonverbal information, as well as reduced Spatial–temporal reasoning, visuospatial Visuospatial function, skills related to alcohol hangover and withdrawal symptoms in youth, a relationship not seen in Adolescence, adolescents with similar levels of alcohol involvement if they are heavy users of marijuana. The cannabinoid CB1 receptor play a critical role in mediating the Adolescence, adolescent behavior, because enhanced CB1 density and endocannabinoid (eCB) signaling occur transiently during the periode from Child, childhood to adolescence and reverse when adult and mature in normal phenotypes. Reports on enhanced adolescent CB1 signaling, suggest a pivotal role for the CB1 in an adolescent brain as an important molecular mediator of adolescent behavior, as adult CB1 mutant rats exhibit an adolescent-like phenotype with typical high risk seeking, impulsivity, and augmented drug and nondrug Reward system, reward sensitivity, by an Instinct, instinctive need or call for activation, and Partial antagonist, partial inhibition of CB1 activity normalized behavior and led to an adult phenotype, is why it is concluded that the activity state and functionality of the CB1 is critical for mediating adolescent behavior and further turn to an adult phenotype, by normal CB1 downscaling. This is also do to the cannabinoid system and its neurotransmitter NAE 20:4 (AEA), that highly participate in the modulation of human states and appropriate human Emotion, emotional responses by activation of the CB1 receptor, also found in frontal Neocortex, neocortical areas, subserving higher Cognition, cognitive and Executive functions, executive functions, and in the Posterior cingulate cortex, posterior cingulate, a region pivotal for consciousness and higher cognitive processing. Alcoholic drink, Alcohol (Ethanol, EtOH) is seen to increase levels of NAE 20:4 (AEA), and its precursor ''N''‐arachidonoylphosphatidylethanolamine (N‐ArPE), a glycero-phospho-ethanolamine, significantly, that may be a mechanism for neuronal adaptation and serve as a compensatory mechanism to counteract a continuous presence of EtOH, that together with previous results indicate the involvement of the endocannabinoid system in mediating some of the Pharmacology, pharmacological actions alleged of EtOH, also seen in red wine Resveratrol, components, and in Humulus lupulus to preserve and flavor beer, widely cultivated for use by the Brewing, brewing industry, through caryophyllene that is a selective full agonist at CB2, and may constitute part of a common brain pathway mediating reinforcement of Substance abuse, drugs of abuse including EtOH, by elevated CB1. As, CB1 receptor binding is 20-30% lower in patients with Alcoholism, alcohol dependence than in control subjects in all brain regions and is negatively correlated with years of alcohol abuse, and the CB1 receptor binding remain similarly reduced after 2–4 weeks of abstinence, suggests an involvement of CB1 receptors in alcohol dependence in humans. Similar pathways of hydrolysis or oxidation of NAEs are also found in plant cells.


NAE system in plants

N-acylethanolamines (NAEs), constitute a class of lipid compounds naturally present in both animal and plant Plant cell/membrane, membranes, as constituents of the Plant cell, membrane-bound phospholipid, N-Acylphosphatidylethanolamine, N-acylphosphatidylethanolamine (NAPE). NAPE is composed of a third fatty acid moiety linked to the Amino acid, amino head group of the commonly occurring membrane Phospholipid-derived fatty acids, phospholipid, phosphatidylethanolamine. A study in 2000 find, that Vascular plant, higher plants use defense signaling, to combat Cellular stress response, cellular stressful situations (homeostasis), like in Osmotic shock, osmotic stress, where high levels of NAEs after a periode of dehydration, are Metabolism, metabolized fast during the first few hours of imbibition, and in response to Pathogen transmission, pathogen elicitors, that lead to signal transduction and membrane protection, in the same way as several Mammal, mammalian Cell membrane, cell types, coupled to
endocannabinoid Cannabinoids () are several structural classes of compounds found in the cannabis plant primarily and most animal organisms (although insects lack such receptors) or as synthetic compounds. The most notable cannabinoid is the phytocannabinoid tet ...
signaling, do, by releasing saturated and unsaturated long-chain NAEs, and saturated medium-chain NAEs, that can act as lipid mediators to modulate ion flux and activate defense gene expression. The levels of NAEs increases 10- to 50-fold in tobacco (''Nicotiana tabacum'') Leaf, leaves treated with Fungus, fungal Fungicide, elicitors, as a Crop protection, protection against it, by producing the ''N-''myristoylethanolamine (''Myristamide''-MEA: C16H33NO2; NAE 14:0), that specific binds to a
protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, res ...
in tobacco membranes with Biomolecule, biochemical properties appropriate for the Plant physiology, physiological responses, and it do not show identical binding properties to NAE-binding proteins in intact tobacco microsomes, compared to non-intact microsomes. In addition to this, Cannabinoid receptor antagonist, antagonists of mammalian CB receptors was seen to block both of the biological activities previously attributed to NAE 14:0, this endogenous NAE that is accumulated in tobacco cell suspensions and leaves after pathogen Pesticide, elicitor perception, is why it is proposed, that plants possess an NAE-Signaling pathways, signaling pathway with functional similarities to the “endocannabinoid” pathway of animal systems, and this pathway, in part, participates in xylanase elicitor Plant perception (physiology), perception in the tobacco plant, as well as in the Arabidopsis and ''Medicago truncatula'' plant Vascular tissue, tissues.


Medical values

N-acylethanolamines (NAEs), with its Cell membrane, cell-protective and
stress Stress may refer to: Science and medicine * Stress (biology), an organism's response to a stressor such as an environmental condition * Stress (linguistics), relative emphasis or prominence given to a syllable in a word, or to a word in a phrase ...
-Stress management, combating action-response of organisms, also produced in neurons, together with N-Acylphosphatidylethanolamine, N-acyl-phosphatidylethanolamine (NAPE), in response to the high Intracellular transport, intracellular Ca2+ concentrations that occur in injured neurons, have showed promise as therapeutic potential in treating Bacterial infection, bacterial, Mycosis, fungal, and Viral disease, viral infections, as NAEs also exhibit
anti-inflammatory Anti-inflammatory is the property of a substance or treatment that reduces inflammation or swelling. Anti-inflammatory drugs, also called anti-inflammatories, make up about half of analgesics. These drugs remedy pain by reducing inflammation as o ...
, Antibiotic, antibacterial, and Antiviral drug, antiviral properties, which have considerable application potential. In Pediatrics, pediatric medicine for conditions including “non-organic Failure to thrive, failure-to-thrive” and cystic fibrosis. A dysfunction of the endocannabinoid system is researched for a possible determining factor for causing infertility in cystic fibrosis (CF), as the illness is associated with an imbalance of
fatty acid In chemistry, particularly in biochemistry, a fatty acid is a carboxylic acid with an aliphatic chain, which is either saturated or unsaturated. Most naturally occurring fatty acids have an unbranched chain of an even number of carbon atoms, ...
s, show that mild stimulation of the endocannabinoid system (CB1 and CB2) in Infant, infancy and adolescence, appears to normalize many reproductive processes and prevent infertility in CF males. The mild stimulated, were fully fertile, producing offspring comparable by the number of litters and the number of pups as the wild-type mice, and there counterparts, not treated, were shown completely infertile. As NAE related Cannabis has an Ancient history, ancient tradition of usage as a medicine in Obstetrics and gynaecology, obstetrics and gynecology, its extracts, may represent an efficacious and safe alternative for treatment of a wide range of conditions in Woman, women including dysmenorrhea, dysuria, hyperemesis gravidarum, and Menopause, menopausal symptoms. It has been found that Social relation, social Meeting, contact increases, whereas Social isolation, isolation decreases, the production of the Endogeny (biology), endogenous Cannabis (drug), marijuanna-like neurotransmitter, NAE 20:4 (AEA), in nucleus accumbens (NAc), which regulate Motivation, motivated behavior, and this NAE 20:4 (AEA) production is via oxytocin, the neuropeptide reinforcing parental and social Human bonding, bonding. Activation of CB1
cannabinoid receptor Cannabinoid receptors, located throughout the body, are part of the endocannabinoid system a class of cell membrane receptors in the G protein-coupled receptor superfamily. As is typical of G protein-coupled receptors, the cannabinoid recep ...
s in NAc, are necessary and sufficient to express the Reward system, rewarding properties of social interactions, i.e. Interpersonal relationship, social contact reward. In addition, CB1 activation also suppresses release of serotonin, dopamine, acetylcholine and Norepinephrine, noradrenaline, which are mediating the characteristic Cognition, cognitive and antidepressant effects. As well as norepinephrine release, as it is suggested that a major function of the ECS also lies in buffering the Sympathetic nervous system, symphatico-Adrenergic nerve fibre, adrenergic response to stress. To use in expected Climate change, global heating scenario, in a catastrophic “hothouse Earth,” possible well beyond the control of Human, humans, where "Wet-bulb temperature, wet bulb temperatures," taken by a thermometer wrapped in a wet cloth, show temperatures of 35C or higher, and considered the limit to human survival and heighten humidity makes it harder for people to cool down via Perspiration, sweating, coursed by the Air pollution, pollution of the troposphere, that tight holds 99% of human made solid Particulate pollution, particle pollution, and keeps Carbon dioxide, CO2 in it for more than 100 years, for citizens who cant afford an Air conditioning, air-condition unit, to Cooling down, cool down and prevent Heat illness, heatstroke with an elevated core Thermoregulation, body temperature above 40℃ with Neurological disorder, neurologic dysfunctions, that can lead to a syndrome of multiple Organ (anatomy), organ defect, and Cellular stress response, cell stress, as it is found, that the CB1 receptor activation, here by a phytocannabinoid Δ9-THC administration, induces profound hypothermia, that is rapid in onset, persistent for 3–4 hours, dose-dependent and is accompanied by a reduction in oxygen (O) Breathing, consumption, which indicate reduced heat production, as opposed to increased Heat transfer, heat loss. Planetary nebula, * Impact event, → Tetrahydrocannabinolic acid, THCA:Carboxylic acid, COOH: C22H30O4 (heating/storage) → THC: C21 H30 O2 → THC-OH: C21H30O3 → THC:COOH: C21H28O4 → profound hypothermia accompanied by a reduction in oxygen consumption In metabolism of THCA from fresh plant Cannabis cultivation, material used Route of administration, orally, is conversion to Delta9-THC not observed: THCA:Carboxylic acid, COOH: C22H30O4 → 11-Hydroxy-THC, THC-Hydroxy group, OH: C21H30O3 → 11-Nor-9-carboxy-THC, THC:COOH: C21H28O4 To be protected where head injury is a possibility, as a positive THC screen is associated with significant decreased Death, mortality in adult patients sustaining traumatic brain injury (TBI), as research work, by a 3-year retrospective review of registry data at a Level I Trauma Center, Level I center of patients sustaining TBI, find mortality in the THC(+) group (2.4% [2 patients]) significantly decreased compared with the THC(-) group (11.5% [42]) in 446 cases meeting all inclusion criteria. And further have shorter hospital length of stay (LOS) and shorter ventilator days, than THC(-) patients sustaining TBI. For severely injured trauma patients with Injury Severity Score ≥16, a THC(+) screen show significantly lower Intensive care unit, intensive care unit LOS and mortality (19.3% versus 25.0%) than THC(-) patients, shown by 4849 patients included at two large regional trauma centers between 2014 and 2018. As the fatty acid amide hydrolase (FAAH) have showed significant decreased in bhang users as compared to controls, and indicating that the decrease in FAAH protein level is closely related to the duration of bhang use, and further revealed that the bhang–induced Immunosuppressive drug, immunotoxicity, could be attributed to decrease in FAAH protein, bhang could also be a healthy drink/preparation to suppress an overactive immune response. A Molecule, molecular mechanism through which NAE 20:4 (AEA) plant competitive substitute THC cannabinoid molecules can affect the development of Alzheimer's disease, the leading cause of dementia, or its impact: THC: C21 H30 O2 → THC-OH: C21H30O3 → THC:COOH: C21H28O4 → a significantly superior inhibitor of Amyloid beta (Aβ) aggregation compared to approved drugs Acetylcholinesterase inhibitor, prescribed for the treatment of Alzheimer's disease in 2008, through which these molecules directly can affect the development by inhibiting the enzyme acetylcholinesterase (AChE), which prevent AChE-induced amyloid β-peptide (Aβ) aggregation, as they are able to bind to the Ion, anionic site of AChE, a region involved in and critical for amyloid formation. Evidence indicates that several classes of Medication, pharmaceuticals upregulate the endocannabinoidome, including analgesics (Paracetamol, acetaminophen, Nonsteroidal anti-inflammatory drug, non-steroidal anti-inflammatory drugs (NSAIDs), opioids, glucocorticoids), antidepressants, antipsychotics, anxiolytics, and anticonvulsants. Clinical interventions characterized as “Alternative medicine, complementary and alternative medicine” also upregulate this system: massage and chiropractic, acupuncture, dietary supplements, and herbal medicines. Lifestyle modification, like Dietary supplement, diet, Obesity, weight control, exercise, mindfulness like Yoga as therapy, yoga and meditation, and the use of Psychoactive drug, psychoactive substances, like Alcoholic drink, alcohol, Tobacco smoking, tobacco, coffee, and cannabis, beside general anaesthesia regimens (i.e. propofol, etomidate, sevoflurane, isoflurane, sufentanil), and Insulin (medication), Insulin medication and intraoperative doses of insulin, do also modulate it, either by being a FAAH inhibitor, that blocks the breakdown of NAE 20:4 (AEA), and/or enhance or lowering its production, and/or by activate or inactivate the receptors connected, as arachidonic acid (C20H32 O2; 20:4, ω-6), the precursor of NAE 20:4 (AEA) and other eCBs, is present in every Cell signaling, cell Cell membrane, membrane of the body, and their on demand Biosynthesis, synthesis is regulated by Membrane potential, electrical activity and calcium ( Ca2+) shifts.


The evolutionary harm reduction program

The central Thesis statement, thesis is, that harm reduction is not only a social concept, but also a biological one. More specifically, evolution does not make moral distinctions in the selection process, but utilizes a cannabis-based approach, seen from the oldest Pollination, pollen, where ''Cannabis'' and ''Humulus'' Genetic divergence, diverged between 18.23 mya and 27.8 mya ago, and consistent with Cannabis dated to 19.6 ago (Million years ago, Ma), in Northwest China, northwestern China, and converge on the northeastern Tibetan Plateau, in the general vicinity of Qinghai Lake, which is deduced as the Cannabis centre of origin, and co-localizes with the first Steppe people, steppe community that evolved in Asia, or Yunnan, in Southwest China, the southwest of China, also identified as "the birthplace of tea ... the first area where humans Retrograde signaling, figured out that eating tea leaves or brewing a cup could be Pleasure, pleasant", and helpful, by its cannabimimetic bioactivity of catechin derivatives occurring in tea leaves, as the region of origin, to harm reduction in order to promote survival of the fittest. Evidence provided from peer-reviewed scientific literature supports the hypothesis, that humans, and all animals, since the primordial Cannabinoid receptor, CB receptor evolved at least 600 million years ago; a date that broadly consistent with the Cambrian Cambrian explosion, explosion, make and use internally produced cannabis-like products (endocannabinoids) as part of the evolutionary harm reduction program. More specifically, endocannabinoids Homeostasis, homeostatically regulate all Biological system, body systems (cardiovascular, Digestive system, digestive, Endocrine system, endocrine, Excretory system, excretory, Immune system, immune, Nervous system, nervous, Human musculoskeletal system, musculo-skeletal, Reproductive system, reproductive), and modulating endocannabinoid activity have therapeutic potential in almost all diseases affecting humans. Therefore, the health of each individual is dependent on this system are working appropriately, and imagine what could be achieved if signaling through these receptors could be controlled: Happiness, happy, Body shape index, slim, and healthy people who remember that they're pain-free, by forgetting, and ignore it, achieved though cannabis, the evolutionary byproduct of a plant that evolved to affect the Endocannabinoid system, ECS and to become its natural Lock and key, key, stemming back to aquatic species 400 million years before the arrival of plants and trees.


Cosmic birth of NAE elements by star death

NAE 20:4 (AEA: C22 H37 NO2; 20: 4, ω-6) is the amide of arachidonic acid (C20H32 O2; 20:4, ω-6) and
ethanolamine Ethanolamine (2-aminoethanol, monoethanolamine, ETA, or MEA) is an organic chemical compound with the formula or . The molecule is bifunctional, containing both a primary amine and a primary alcohol. Ethanolamine is a colorless, viscous liquid w ...
(MEA: C2H7NO). NAE 20:5 (EPEA: C22H35NO2; 20:5, ω-3) or Anandamide (20:5, n-3). It is the amide of
eicosapentaenoic acid Eicosapentaenoic acid (EPA; also icosapentaenoic acid) is an omega-3 fatty acid. In physiological literature, it is given the name 20:5(n-3). It also has the trivial name timnodonic acid. In chemical structure, EPA is a carboxylic acid with a 20-c ...
(EPA: C20H30O2; 20:5, ω-3) NAE 22:6 (DHEA: C24H37NO2; 22:6, ω-3), or Anandamide (22:6, n-3) "synaptamide", is the amide of
docosahexaenoic acid Docosahexaenoic acid (DHA) is an omega-3 fatty acid that is a primary structural component of the human brain, cerebral cortex, skin, and retina. In physiological literature, it is given the name 22:6(n-3). It can be synthesized from alpha-lin ...
(DHA: C22H32O2; 22:6, ω-3) and ethanolamine (MEA: C2H7NO) In the heart of a heavy star, like Betelgeuse, and in its Stellar core, core, is where all the ingredients of life (and elements of NAEs) are found made. Deep in its core, the star will fight a futile battle against its own gravity, as it tries to stop itself collapsing under its own weight, is where new Chemical element, elements are made in a sequence of separate stages. Stage one, is while there is still a supply of hydrogen (H) to Combustion, burn. As the star burn in hydrogen to helium (He) in the core, are vast amounts of energy released and that energy escapes and thereby creating an outward pressure, which balances the force of gravity, and holds the star off and keeps it stable. But the hydrogen (H) in the core will eventually run out, and the fusion reactions will stop and no energy will be released, and the outward pressure will disappear, and the core will start to collapse and very rapidly leaving a Shell (structure), shell of hydrogen (H) and helium (He) behind. Beneath this shell, as the core collapses, the temperature rises again until at a hundred million Degree (temperature), degrees, the stage two stars and Helium-3 nuclear magnetic resonance, helium nuclear begin to fuse together. Triple-alpha process, Helium fusion does two things. First, it releases more energy so the collapse is halted, and secondly it produce two more elements in that process. Carbon (C) and oxygen (O), two elements vital for life (and molecules in the NAE structure), with further collapses until it eventually form iron (Fe). And when that happens, the star collapses around itself. And, through a Planetary nebula, nebula, meteorites and Impact event, comet impact, this is where all the carbon, hydrogen, oxygen etc. in the NAE molecular structure come from, and every atom particle in every living thing on the planet earth, was probably produced in and carried from the elements of a Stellar evolution, dying star. And due to the chemical ability to build Fatty acid, chains and Aromaticity, rings, carbon (C) forms with quite a few other elements, like hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P) and sulfur (S) the basis of the myriad of the chemical compounds,
protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, res ...
s, DNA, carbohydrates,
lipid Lipids are a broad group of naturally-occurring molecules which includes fats, waxes, sterols, fat-soluble vitamins (such as vitamins A, D, E and K), monoglycerides, diglycerides, phospholipids, and others. The functions of lipids includ ...
s, etc. of living organisms. NASA-funded scientists have evidenced, that some building blocks of DNA, a nucleic acid, and the molecule that carry Genetic code, genetic instructions for life, found in meteorites, were likely created in Universe, space. The research supports the theory, that a "kit" of finished parts created in space and delivered to Earth by Meteorite fall, meteorite and Impact event, comet impact, has aided the Abiogenesis, origin of life. A simulated Comet impact on the surface of the earth, as it probably would look like 3.8 billion years ago at the Late Heavy Bombardment, late heavy bombardment, show that amino acids (i.e. Organic compound, organic compounds arisen from
amine In chemistry, amines (, ) are compounds and functional groups that contain a basic nitrogen atom with a lone pair. Amines are formally derivatives of ammonia (), wherein one or more hydrogen Hydrogen is the chemical element wi ...
(-NH2) and carboxylic acid (-COOH) functional groups, producing
protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, res ...
s) in
water Water (chemical formula ) is an Inorganic compound, inorganic, transparent, tasteless, odorless, and Color of water, nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living ...
is able to make peptide bonds (i.e. bonds from the carboxyl group of one amino acid to the amino group of the other amino acid), and peptides from the heat of the impact through Earth's atmosphere, and this could be a spark to early life on earth. Using the samples returned by the spacecraft Stardust (spacecraft), Stardust, other scientists discovered the amino acid glycine (C2H5NO2) fully formed in a comet tail, but this glycine was not like this on Earth; it was built with some subtle differences - traces of Carboxylic acid, COOH's important presence and Interstellar medium, interstellar heritage, as well as strengthened the theory of panspermia, which claims that these "seeds" of life are widespread throughout the universe, and among the most widespread and versatile signaling molecules ever discovered. Further other scientists have used the radio telescope (Green Bank Telescope, GBT) in West Virginia to study a giant Interstellar cloud, cloud of gas about 25,000 light-years from Earth, near the center of our Milky Way. The chemicals found in the cloud include one molecule that is thought to be a precursor to a key element in DNA and another that may have a role in the formation of the amino acid, alanine (Ala: C3H7NO2). Cyanomethanimine (C2H2N2), is a step in the process that is believed to produce adenine (C5H5N5), one of the four nucleobases that make up the "step" of the ladder-like structure of DNA. The second molecule, called ethanamine (C5H5N), is thought to play a role in the formation of alanine (Ala - C3H7NO2), one of the twenty amino acids in the genetic code. Big Bang, * → An atom consists of a nucleus, the atom nucleus, and a shell. The atom's Electric charge, positively charged Particle physics, particles, Proton, protons, lie in the nucleus and consist of the smallest building blocks we know of in the universe, called Quark, quarks, which are held together by Gluon, gluons, are everywhere. Along with the protons are Neutron, neutrons, which are neutral. Outside the nucleus is the mantle, where the atom's negatively charged particles, Electron, electrons, interact (in the form of standing waves), and is the absolute smallest part of an element, that can exist independently, but is most often bound to other atoms that can either belong to the same element or other elements, thereby forming a molecule. With a spike on a graph, an entourage effect and retrograde signaling, by the motto “Science for Peace", and, also in the spirit of Niels Bohr, the Danish physicist with the first relatively correct model of how an atom looks like, - an international group of about 6000 researchers connected at CERN, by a particle accelerator located 100 meters underground, called LHC Large Hadron Collider, Large Hadron Collider 1, which consists of a 27 km long tube in a circle, that can accelerate protons to near the speed of light and smash them together, demonstrated on 4 July 2012 the existence of the Higgs boson, Higgs particle, a manifestation of the existence of the Higgs field - an Invisibility, invisible field in the entire Universe (symmetry breaking), believed to have emerge at about 1 picosecond (10−12 s) after the Big Bang, and required for Atom, atoms and other structures to form, as well as for Nuclear reaction, nuclear reactions in stars, such as our Sun and Betelgeuse. As so, the Higgs field is responsible for this symmetry breaking, and which all particles pass through, and which provide them their mass and thereby, weight, and without this field, all particles and elements in the NAE-structure, would be moving around at the speed of light, because they didn't have a mass, and they and living nature, wouldn't be able to exist.


See also

* Fatty acid desaturase *Retrograde signaling *Endocannabinoid system *Cannabis in pregnancy *Evolutionary history of life *Evolutionary history of plants *Hemp oil, Hemp seed oil *Hemp#Nutrition, Hemp seed protein *COX-2 inhibitors


References


External links


N-Acylphosphatidylethanolamines (NAPEs), N-acylethanolamines (NAEs) and Other Acylamides: Metabolism, Occurrence and Functions in Plants
Center for Plant Lipid Research, Department of Biological Sciences, University of North Texas, Denton, TX, USA {{DEFAULTSORT:Acylethanolamine, N- Fatty acid amides Lipids