Dinoprost
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Dinoprost
Prostaglandin F2α (PGF2α in prostanoid nomenclature), pharmaceutically termed carboprost is a naturally occurring prostaglandin used in medicine to induce labor and as an abortifacient. Prostaglandins are lipids throughout the entire body that have a hormone-like function. In pregnancy, PGF2 is medically used to sustain contracture and provoke myometrial ischemia to accelerate labor and prevent significant blood loss in labor. Additionally, PGF2 has been linked to being naturally involved in the process of labor. It has been seen that there are higher levels of PGF2 in maternal fluid during labor when compared to at term. This signifies that there is likely a biological use and significance to the production and secretion of PGF2 in labor. Prostaglandin is also used to treat uterine infections in domestic animals. In domestic mammals, it is produced by the uterus when stimulated by oxytocin, in the event that there has been no implantation during the luteal phase. It acts on t ...
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Lutalyse
Prostaglandin F2α (PGF2α in prostanoid nomenclature), pharmaceutically termed carboprost is a naturally occurring prostaglandin used in medicine to induce labor and as an abortifacient. Prostaglandins are lipids throughout the entire body that have a hormone-like function. In pregnancy, PGF2 is medically used to sustain contracture and provoke myometrial ischemia to accelerate labor and prevent significant blood loss in labor. Additionally, PGF2 has been linked to being naturally involved in the process of labor. It has been seen that there are higher levels of PGF2 in maternal fluid during labor when compared to at term. This signifies that there is likely a biological use and significance to the production and secretion of PGF2 in labor. Prostaglandin is also used to treat uterine infections in domestic animals. In domestic mammals, it is produced by the uterus when stimulated by oxytocin, in the event that there has been no implantation during the luteal phase. It acts on t ...
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Abortifacients
An abortifacient ("that which will cause a miscarriage" from Latin: ''abortus'' "miscarriage" and '' faciens'' "making") is a substance that induces abortion. This is a nonspecific term which may refer to any number of substances or medications, ranging from herbs to prescription medications. Common abortifacients used in performing medical abortions include mifepristone, which is typically used in conjunction with misoprostol in a two-step approach. Synthetic oxytocin, which is routinely used safely during term labor, is also commonly used to induce abortion in the second or third trimester. For thousands of years writers in many parts of the world have described and recommended herbal abortifacients to women who seek to terminate a pregnancy, although their use may carry risks to the health of the woman. Medications Because "abortifacient" is a broad term used to describe a substance's effects on pregnancy, there is a wide range of drugs that can be described as abortifa ...
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Abortifacient
An abortifacient ("that which will cause a miscarriage" from Latin: ''abortus'' "miscarriage" and '' faciens'' "making") is a substance that induces abortion. This is a nonspecific term which may refer to any number of substances or medications, ranging from herbs to prescription medications. Common abortifacients used in performing medical abortions include mifepristone, which is typically used in conjunction with misoprostol in a two-step approach. Synthetic oxytocin, which is routinely used safely during term labor, is also commonly used to induce abortion in the second or third trimester. For thousands of years writers in many parts of the world have described and recommended herbal abortifacients to women who seek to terminate a pregnancy, although their use may carry risks to the health of the woman. Medications Because "abortifacient" is a broad term used to describe a substance's effects on pregnancy, there is a wide range of drugs that can be described as abortifac ...
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Carboprost
Carboprost (INN, trade names for the tromethamine salts Hemabate, Tham) is a synthetic prostaglandin analogue of PGF2α (specifically, it is 15-methyl-PGF2α) with oxytocic properties. Carboprost's main use is in the obstetrical emergency of postpartum hemorrhage which reduces postpartum bleeding during these circumstances. Indication Used in postpartum hemorrhage caused by uterine atony not controlled by other methods. One study has shown that carboprost tromethamine is more effective than oxytocin in preventing postpartum hemorrhage in high-risk patients undergoing cesarean delivery. Carboprost is also used for the termination of pregnancy in the 2nd trimester.Hemabate ackage Insert New York, NY: Pharmacia and Upjohn Company; 2014. Unlabeled use: * Hemorrhagic Cystitis * PID Contraindication Contraindicated in severe cardiovascular, renal, and hepatic disease. It is also contraindicated in acute pelvic inflammatory disease. Hypersensitivity to carboprost or any of its c ...
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Travoprost
Travoprost, sold under the brand name Travatan among others, is a medication used to treat high pressure inside the eye including glaucoma. Specifically it is used for open angle glaucoma when other agents are not sufficient. It is used as an eye drop. Effects generally occur within two hours. Common side effects include red eyes, blurry vision, eye pain, dry eyes, and change in color of the eyes. Other significant side effects may include cataracts. Use during pregnancy or breastfeeding is generally not recommended. It is a prostaglandin analog and works by increasing the outflow of aqueous fluid from the eyes. Travoprost was approved for medical use in the United States and in the European Union in 2001. It is available as a generic medication in the United Kingdom. In 2020, it was the 304th most commonly prescribed medication in the United States, with more than 1million prescriptions. Medical uses Travoprost is used to treat high pressure inside the eye including glaucom ...
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Bimatoprost
Bimatoprost, sold under the brand name Lumigan among others, is a medication used to treat high pressure inside the eye including glaucoma. Specifically it is used for open angle glaucoma when other agents are not sufficient. It may also be used to increase the size of the eyelashes. It is used as an eye drop and effects generally occur within four hours. Common side effects include red eyes, dry eyes, change in color of the eyes, blurry vision, and cataracts. Use during pregnancy or breastfeeding is generally not recommended. It is a prostaglandin analog and works by increasing the outflow of aqueous fluid from the eyes. Bimatoprost was approved for medical use in the United States in 2001. It is available as a generic medication. In 2020, it was the 166th most commonly prescribed medication in the United States, with more than 3million prescriptions. Uses Medical Bimatoprost is used for the treatment of open-angle glaucoma and ocular hypertension in adults, either alone or ...
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Latanoprost
Latanoprost, sold under the brand name Xalatan among others, is a medication used to treat increased pressure inside the eye. This includes ocular hypertension and open angle glaucoma. It is applied as eye drops to the eyes. Onset of effects is usually within four hours, and they last for up to a day. Common side effects include blurry vision, redness of the eye, itchiness, and darkening of the iris. Latanoprost is in the prostaglandin analogue family of medications. It works by increasing the outflow of aqueous fluid from the eyes through the uveoscleral tract. Latanoprost was approved for medical use in the United States in 1996. It is on the World Health Organization's List of Essential Medicines. Latanoprost is available as a generic medication. In 2020, it was the 77th most commonly prescribed medication in the United States with more than 9million prescriptions. It is available as a combination with netarsudil and with timolol. Medical uses Open-angle glaucoma ...
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Prostaglandin Analogue
Prostaglandin analogues are a class of drugs that bind to a prostaglandin receptor. Wider use of prostaglandin analogues is limited by unwanted side effects and their abortive potential. Uses Prostaglandin analogues such as misoprostol are used in treatment of duodenal and gastric ulcers. Misoprostol and other prostaglandin analogues protect the lining of the gastrointestinal tract from harmful stomach acid and are especially indicated for the elderly on continuous doses of NSAIDs. In the field of ophthalmology, drugs of this class are used to lower intraocular pressure (IOP) in people with glaucoma. Up until the late 1970s prostaglandins were thought to raise IOP, but a paper published in 1977 showed that prostaglandin F2α lowered it, and subsequent studies found that this was due to increasing the outflow of aqueous humor, mainly by relaxing the ciliary muscle, and possibly also due to changes in extracellular matrix and to widening of spaces within the trabecular meshwork. ...
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AKR1B1
Aldo-keto reductase family 1, member B1 (AKR1B1), also known as aldose reductase, is an enzyme that is encoded by the ''AKR1B1'' gene in humans. It is a reduced nicotinamide-adenine dinucleotide phosphate (NADPH)-dependent enzyme catalyzing the reduction of various aldehydes and ketones to the corresponding alcohol. The involvement of AKR1B1 in oxidative stress diseases, cell signal transduction, and cell proliferation process endows AKR1B1 with potential as a therapeutic target. Structure Gene The ''AKR1B1'' gene lies on the chromosome location of 7q33 and consists of 10 exons. There are a few putative pseudogenes for this gene, and one of them has been confirmed and mapped to chromosome 3. Protein AKR1B1 consists of 316 amino acid residues and weighs 35853Da. It does not possess the traditional dinucleotide binding fold. The way it binds NADPH differs from other nucleotide adenine dinucleotide-dependent enzymes. The active site pocket of human aldose reductase is relativ ...
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Cyclooxygenase
Cyclooxygenase (COX), officially known as prostaglandin-endoperoxide synthase (PTGS), is an enzyme (specifically, a family of isozymes, ) that is responsible for formation of prostanoids, including thromboxane and prostaglandins such as prostacyclin, from arachidonic acid. A member of the animal-type heme peroxidase family, it is also known as prostaglandin G/H synthase. The specific reaction catalyzed is the conversion from arachidonic acid to prostaglandin H2 via a short-living prostaglandin G2 intermediate. Pharmaceutical inhibition of COX can provide relief from the symptoms of inflammation and pain. Nonsteroidal anti-inflammatory drugs (NSAIDs), such as aspirin and ibuprofen, exert their effects through inhibition of COX. Those that are specific to the COX-2 isozyme are called COX-2 inhibitors. The active metabolite (AM404) of paracetamol is a COX inhibitor, a fact to which some or all of its therapeutic effect has been attributed. In medicine, the root symbol "COX" is ...
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Arachidonic Acid
Arachidonic acid (AA, sometimes ARA) is a polyunsaturated omega-6 fatty acid 20:4(ω-6), or 20:4(5,8,11,14). It is structurally related to the saturated arachidic acid found in cupuaçu butter. Its name derives from the New Latin word ''arachis'' (peanut), but peanut oil does not contain any arachidonic acid. Chemistry In chemical structure, arachidonic acid is a carboxylic acid with a 20-carbon chain and four ''cis''-double bonds; the first double bond is located at the sixth carbon from the omega end. Some chemistry sources define 'arachidonic acid' to designate any of the eicosatetraenoic acids. However, almost all writings in biology, medicine, and nutrition limit the term to ''all cis''-5,8,11,14-eicosatetraenoic acid. Biology Arachidonic acid is a polyunsaturated fatty acid present in the phospholipids (especially phosphatidylethanolamine, phosphatidylcholine, and phosphatidylinositides) of membranes of the body's cells, and is abundant in the brain, muscles, an ...
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Phospholipase A2
The enzyme phospholipase A2 (EC 3.1.1.4, PLA2, systematic name phosphatidylcholine 2-acylhydrolase) catalyse the cleavage of fatty acids in position 2 of phospholipids, hydrolyzing the bond between the second fatty acid “tail” and the glycerol molecule: :phosphatidylcholine + H2O = 1-acylglycerophosphocholine + a carboxylate This particular phospholipase specifically recognizes the ''sn''2 acyl bond of phospholipids and catalytically hydrolyzes the bond, releasing arachidonic acid and lysophosphatidic acid. Upon downstream modification by cyclooxygenases or lipoxygenases, arachidonic acid is modified into active compounds called eicosanoids. Eicosanoids include prostaglandins and leukotrienes, which are categorized as anti-inflammatory and inflammatory mediators. PLA2 enzymes are commonly found in mammalian tissues as well as arachnid, insect, and snake venom. Venom from bees is largely composed of melittin, which is a stimulant of PLA2. Due to the increased presenc ...
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