翻訳と辞書 Words near each other ・ Prostaglandin EP3 receptor ・ Prostaglandin EP4 receptor ・ Prostaglandin F receptor ・ Prostaglandin F2alpha ・ Prostaglandin G2 ・ Prostaglandin H2 ・ Prostaglandin receptor ・ Prostaglandin transporter ・ Prostaglandin-A1 Delta-isomerase ・ Prostaglandin-D synthase ・ Prostaglandin-E2 9-reductase ・ Prostaglandin-endoperoxide synthase 2 ・ Prostaglandin-F synthase ・ Prostalomus ・ Prostamide/prostaglandin F2alpha synthase ・ Prostanoid ・ Prostanozol ・ Prostanthera ・ Prostanthera arapilensis ・ Prostanthera aspalathoides ・ Prostanthera calycina ・ Prostanthera cryptandroides ・ Prostanthera cuneata ・ Prostanthera decussata ・ Prostanthera denticulata ・ Prostanthera eurybioides ・ Prostanthera galbraithiae ・ Prostanthera hirtula ・ Prostanthera incana ・ Prostanthera incisa Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Prostanoid ： ウィキペディア英語版 Prostanoids are a subclass of eicosanoids consisting of the prostaglandins (mediators of inflammatory and anaphylactic reactions), the thromboxanes (mediators of vasoconstriction), and the prostacyclins (active in the resolution phase of inflammation.)== Biosynthesis == Cyclooxygenase (''COX'') catalyzes the conversion of the free essential fatty acids to prostanoids by a two-step process. In the first step, two molecules of O2 are added as two peroxide linkages and a 5-member carbon ring is forged near the middle of the fatty acid chain. This forms the short-lived, unstable intermediate Prostaglandin G (PGG). One of the peroxide linkages sheds a single oxygen, forming PGH. ''(See diagrams and more detail at Cyclooxygenase).'' All other prostanoids originate from PGH (as PGH1, PGH2, or PGH3). Figure 1 shows how PGH2 (derived from Arachidonic acid) is converted:* By PGE synthetase into PGE (which in turn is converted into PGF)* By PGD synthetase into PGD* By Prostacyclin synthase into prostacyclin (PGI2)* By Thromboxane synthase into thromboxanesThe three classes of prostanoids have distinctive rings in the center of the molecule. They differ in their structures. The PGH compounds (parents to all the rest) have a 5-carbon ring, bridged by two oxygens (a peroxide.) The derived prostaglandins contain a single, unsaturated 5-carbon ring. In prostacyclins, this ring is conjoined to another oxygen-containing ring. In thromboxanes the ring becomes a 6-member ring with one oxygen.Production of PGE2 in bacterial and viral infections appear to be stimulated by certain cytokines, e.g., interleukin-1. ==See also==* Essential fatty acid* Isoprostane Prostanoids are a subclass of eicosanoids consisting of the prostaglandins (mediators of inflammatory and anaphylactic reactions), the thromboxanes (mediators of vasoconstriction), and the prostacyclins (active in the resolution phase of inflammation.) == Biosynthesis == Cyclooxygenase (''COX'') catalyzes the conversion of the free essential fatty acids to prostanoids by a two-step process. In the first step, two molecules of O2 are added as two peroxide linkages and a 5-member carbon ring is forged near the middle of the fatty acid chain. This forms the short-lived, unstable intermediate Prostaglandin G (PGG). One of the peroxide linkages sheds a single oxygen, forming PGH. ''(See diagrams and more detail at Cyclooxygenase).'' All other prostanoids originate from PGH (as PGH1, PGH2, or PGH3). Figure 1 shows how PGH2 (derived from Arachidonic acid) is converted: * By PGE synthetase into PGE (which in turn is converted into PGF) * By PGD synthetase into PGD * By Prostacyclin synthase into prostacyclin (PGI2) * By Thromboxane synthase into thromboxanes The three classes of prostanoids have distinctive rings in the center of the molecule. They differ in their structures. The PGH compounds (parents to all the rest) have a 5-carbon ring, bridged by two oxygens (a peroxide.) The derived prostaglandins contain a single, unsaturated 5-carbon ring. In prostacyclins, this ring is conjoined to another oxygen-containing ring. In thromboxanes the ring becomes a 6-member ring with one oxygen. Production of PGE2 in bacterial and viral infections appear to be stimulated by certain cytokines, e.g., interleukin-1.〔 〕 ==See also== * Essential fatty acid * Isoprostane 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Prostanoids are a subclass of eicosanoids consisting of the prostaglandins (mediators of inflammatory and anaphylactic reactions), the thromboxanes (mediators of vasoconstriction), and the prostacyclins (active in the resolution phase of inflammation.)== Biosynthesis == Cyclooxygenase (''COX'') catalyzes the conversion of the free essential fatty acids to prostanoids by a two-step process. In the first step, two molecules of O2 are added as two peroxide linkages and a 5-member carbon ring is forged near the middle of the fatty acid chain. This forms the short-lived, unstable intermediate Prostaglandin G (PGG). One of the peroxide linkages sheds a single oxygen, forming PGH. ''(See diagrams and more detail at Cyclooxygenase).'' All other prostanoids originate from PGH (as PGH1, PGH2, or PGH3). Figure 1 shows how PGH2 (derived from Arachidonic acid) is converted:* By PGE synthetase into PGE (which in turn is converted into PGF)* By PGD synthetase into PGD* By Prostacyclin synthase into prostacyclin (PGI2)* By Thromboxane synthase into thromboxanesThe three classes of prostanoids have distinctive rings in the center of the molecule. They differ in their structures. The PGH compounds (parents to all the rest) have a 5-carbon ring, bridged by two oxygens (a peroxide.) The derived prostaglandins contain a single, unsaturated 5-carbon ring. In prostacyclins, this ring is conjoined to another oxygen-containing ring. In thromboxanes the ring becomes a 6-member ring with one oxygen.Production of PGE2 in bacterial and viral infections appear to be stimulated by certain cytokines, e.g., interleukin-1. ==See also==* Essential fatty acid* Isoprostane」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.