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Securinine
Securinine is an alkaloid found in ''Securinega suffruticosa'' and ''Phyllanthus niruri''. Pharmacology Securinine has pro-convulsant effects and it has a strong Spasticity, spastic effect, similar to the actions of strychnine. Securinine is a GABA-A antagonist. See also * Norsecurinine * Phenazine References {{Reflist Tetracyclic compounds Nitrogen heterocycles Lactones Alkaloids Furanones Cyclohexenes Withdrawn drugs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Securinega Suffruticosa
''Flueggea suffruticosa'' is a species of flowering plant in the family Phyllanthaceae. It is a deciduous shrub that is widely distributed in Asia, America, Europe, and Africa. It is one of the Chinese herbology#50 fundamental herbs, 50 fundamental herbs used in traditional Chinese medicine, where it has the name ''yī yè qiū'' (). Uses Folk medicine ''F. suffruticosa'' is one of the Chinese herbology#50 fundamental herbs, 50 fundamental herbs in traditional Chinese medicine, where its twigs and leaves are used for the treatment of low back pain, lumbago, limb numbness, and indigestion,. However, there is no evidence-based medicine, scientific evidence that it has any clinical effect. Phytochemicals ''Flueggea suffruticosa'' contains various alkaloids, such as securinine. References External links * * * Flueggea, suffruticosa Flora of China Flora of Korea Flora of Japan Flora of Mongolia Flora of the Russian Far East Flora of Siberia Flora of Eastern Asia Flora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norsecurinine
Norsecurinine is a securinega alkaloid from ''Phyllanthus niruri''. See also * Securinine Securinine is an alkaloid found in ''Securinega suffruticosa'' and ''Phyllanthus niruri''. Pharmacology Securinine has pro-convulsant effects and it has a strong Spasticity, spastic effect, similar to the actions of strychnine. Securinine is ... References {{Reflist Alkaloids Tetracyclic compounds Nitrogen heterocycles Lactones Furanones Cyclohexenes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkaloid
Alkaloids are a class of basic, naturally occurring organic compounds that contain at least one nitrogen atom. This group also includes some related compounds with neutral and even weakly acidic properties. Some synthetic compounds of similar structure may also be termed alkaloids. In addition to carbon, hydrogen and nitrogen, alkaloids may also contain oxygen, sulfur and, more rarely, other elements such as chlorine, bromine, and phosphorus.Chemical Encyclopedia: alkaloids xumuk.ru Alkaloids are produced by a large variety of organisms including , , Medicinal plant, plants, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllanthus Niruri
''Phyllanthus niruri'' is a widespread tropical plant commonly found in coastal areas, known by the common names gale of the wind, stonebreaker, shatter stone , seed-under-leaf, quebra pedra and chance pierre. It is in the genus ''Phyllanthus'' of the family Phyllanthaceae. Description It grows tall and bears ascending herbaceous branches. The bark is smooth and light green. It bears numerous pale green flowers which are often flushed with red. The fruits are tiny, smooth capsules containing seeds. Research A 2011 Cochrane review found that there is "no convincing evidence that phyllanthus, compared with placebo, benefits patients with chronic HBV (hepatitis B virus ''Hepatitis B virus'' (HBV) is a partially double-stranded DNA virus, a species of the genus ''Orthohepadnavirus'' and a member of the ''Hepadnaviridae'' family of viruses. This virus causes the disease hepatitis B. Disease Despite there bein ...) infection." Gallery Image:Keezharnelli_new.jpg, Niruri fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spasticity
Spasticity () is a feature of altered skeletal muscle performance with a combination of paralysis, increased tendon reflex activity, and hypertonia. It is also colloquially referred to as an unusual "tightness", stiffness, or "pull" of muscles. Clinically, spasticity results from the loss of inhibition of motor neurons, causing excessive velocity-dependent muscle contraction. This ultimately leads to hyperreflexia, an exaggerated deep tendon reflex. Spasticity is often treated with the drug baclofen, which acts as an agonist at GABA receptors, which are inhibitory. Spastic cerebral palsy is the most common form of cerebral palsy, which is a group of permanent movement problems that do not get worse over time. GABA's inhibitory actions contribute to baclofen's efficacy as an anti-spasticity agent. Cause Spasticity mostly occurs in disorders of the central nervous system (CNS) affecting the upper motor neurons in the form of a lesion, such as spastic diplegia, or upper motor neu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strychnine
Strychnine (, , US chiefly ) is a highly toxic, colorless, bitter, crystalline alkaloid used as a pesticide, particularly for killing small vertebrates such as birds and rodents. Strychnine, when inhaled, swallowed, or absorbed through the eyes or mouth, causes poisoning which results in muscular convulsions and eventually death through asphyxia. While it is no longer used medicinally, it was used historically in small doses to strengthen muscle contractions, such as a heart and bowel stimulant and performance-enhancing drug. The most common source is from the seeds of the ''Strychnos nux-vomica'' tree. Biosynthesis Strychnine is a terpene indole alkaloid belonging to the ''Strychnos'' family of '' Corynanthe'' alkaloids, and it is derived from tryptamine and secologanin. The biosynthesis of strychine was solved in 2022. The enzyme, strictosidine synthase, catalyzes the condensation of tryptamine and secologanin, followed by a Pictet-Spengler reaction to form strictosidine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenazine
Phenazine is an organic compound with the formula (C6H4)2N2. It is a dibenzo annulation, annulated pyrazine, and the parent substance of many dyestuffs, such as the toluylene red, indulines, and safranines (and the closely related eurhodines). Phenazine crystallizes in yellow needles, which are only sparingly soluble in ethanol, alcohol. Sulfuric acid dissolves it, forming a deep-red solution. Synthesis Classically phenazine are prepared by the reaction of nitrobenzene and aniline in the Wohl-Aue reaction. Other methods include: * pyrolysis of the barium salt (chemistry), salt of azobenzoate * oxidation of aniline with lead oxide * oxidation of dihydrophenazine, which is prepared by heating pyrocatechin with o-phenylenediamine. * oxidation of ortho-aminodiphenylamine with lead peroxide. Derivatives * The more complex phenazines, such as the naphthophenazines, naphthazines, and naphthotolazines, may be prepared by condensing Toluidine, ortho-diamines with quinone, ortho-quinones or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetracyclic Compounds
Tetracyclics are cyclic chemical compounds that contain four interconnected rings of atoms, e.g. Tröger's base. They have various pharmaceutical uses, for instance the tetracycline antibiotics and the tetracyclic antidepressants. See also * Tricyclic * Heterocyclic A heterocyclic compound or ring structure is a cyclic compound that has atoms of at least two different elements as members of its ring(s). Heterocyclic chemistry is the branch of organic chemistry dealing with the synthesis, properties, and ... References {{Reflist Tetracyclic compounds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrogen Heterocycles
Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N2, a colorless and odorless diatomic gas. N2 forms about 78% of Earth's atmosphere, making it the most abundant uncombined element. Nitrogen occurs in all organisms, primarily in amino acids (and thus proteins), in the nucleic acids ( DNA and RNA) and in the energy transfer molecule adenosine triphosphate. The human body contains about 3% nitrogen by mass, the fourth most abundant element in the body after oxygen, carbon, and hydrogen. The nitrogen cycle describes the movement of the element from the air, into the biosphere and organic compounds, then back into the atmosphere. Many industrially importa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lactones
Lactones are cyclic carboxylic esters, containing a 1-oxacycloalkan-2-one structure (), or analogues having unsaturation or heteroatoms replacing one or more carbon atoms of the ring. Lactones are formed by intramolecular esterification of the corresponding hydroxycarboxylic acids, which takes place spontaneously when the ring that is formed is five- or six-membered. Lactones with three- or four-membered rings (α-lactones and β-lactones) are very reactive, making their isolation difficult. Special methods are normally required for the laboratory synthesis of small-ring lactones as well as those that contain rings larger than six-membered. Nomenclature Lactones are usually named according to the precursor acid molecule (''aceto'' = 2 carbon atoms, ''propio'' = 3, ''butyro'' = 4, ''valero'' = 5, ''capro'' = 6, etc.), with a ''-lactone'' suffix and a Greek letter prefix that specifies the number of carbon atoms in the heterocycle — that is, the distance between the relevant -OH ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkaloids
Alkaloids are a class of basic, naturally occurring organic compounds that contain at least one nitrogen atom. This group also includes some related compounds with neutral and even weakly acidic properties. Some synthetic compounds of similar structure may also be termed alkaloids. In addition to carbon, hydrogen and nitrogen, alkaloids may also contain oxygen, sulfur and, more rarely, other elements such as chlorine, bromine, and phosphorus.Chemical Encyclopedia: alkaloids xumuk.ru Alkaloids are produced by a large variety of organisms including , , |
