[PDF] Top 20 3-Methylquercetin 對離體天竺鼠氣管的鬆弛作用 Relaxant Effect of 3-Methylquercetin in Isolated guinea Pig Trachea

... 外尚有其他鬆弛機轉。 3-MQ 的鬆弛作用無須仰賴上皮細胞，亦與 β-受體活化或鉀通道開啟無關。它 的鬆弛作用不被 2',5'- dideoxyadenosine(10μM) 、methylene ... See full document

... 外尚有其他鬆弛機轉。 3-MQ 的鬆弛作用無須仰賴上皮細胞，亦與β-受體活化或鉀通道開啟無關。它 的鬆弛作用不被 2',5'-dideoxyadenosine(10μM)、 methylene blue(25μM)或 ... See full document

... We investigated the mechanisms of action of 3-O-methylquercetin (3-MQ), isolated from Rhamnus nakaharai (Hayata) Hayata (Rhamnaceae) which is used as a folk medicine for treating const[r] ... See full document

... tracheal relaxant action are not very well known. In the present study, 26 natural and synthetic flavonoids, divided into the 5 classes of flavones, flavonols, flavanones, isoflavones and chalcones, ... See full document

... effects of luteolin on these cumulative concen- tration-response curves were expressed as pD 2 ¢ values, and the relaxing effects of forskolin and nitroprusside against histamine (30 mM)-induced ... See full document

... cromakalim 的作用是由於非專一性地阻斷 ATP—敏感的鉀通道 而來。 Bdph 300 μM 亦不加強 tetraethylammonium (TEA) 8 mM 拮 抗 cromakalim 的鬆弛作用，顯示 Bdph 阻斷鉀通道的作用與 TEA 的作用 不同；但與 ... See full document

... mechanisms of relaxant action. The relaxant effect of S-petasin or S-isopetasin was unaffected by the presence of propranolol (1 ... See full document

... mechanisms of relaxant action. The relaxant effect of S-petasin or S-isopetasin was unaffected by the presence of propranolol (1 ... See full document

... mechanisms of action of S-peta- sin and S-isopetasin, from Petasites formosanus Kitamura which is used as a folk medicine for treating hypertension, tu- mors, and asthma in ...changes of ... See full document

... mechanisms of the relaxant action of genistein, an isoflavone, phytoestrogen and non-specific protein tyrosine kinase ...Changes in tension of guineapig tracheal segments were ... See full document

... 3-Methylquercetin(3-MQ) 可使離體天竺鼠氣管產生鬆弛作用，它對 histamine(30μM 、 carbachol(0.2 μ M) 及 isotonic KCI(17.5mM) 預先收縮的 IC50 分別為 ... See full document

... mechanisms of action of luteolin, a flavone found in Perilla frutescens, a Chinese herbal medicine for treating ...asthma. In fact, luteolin occurs mostly as a glycoside in many plant ... See full document

... mechanisms of action of luteolin, a flavone found in Perilla frutescens, a Chinese herbal medicine for treating ...asthma. In fact, luteolin occurs mostly as a glycoside in many plant ... See full document

... CA>FA, MA. There was a significant difference among these four tissues with an exception between FA and MA. (2) Bdph also non-competitively inhibited cumulative KCl (5-120 mM)- and phe (0.1-100 μM)-induced contractions ... See full document

... mM)- and phe (0.1-100 μM)-induced contractions in these four blood vessels excluding CA to phe. Roughly, the potency order of Bdph to these blood vessels roughly was SV, CA>FA, MA. There was a significant ... See full document

... tracheal relaxant action are not very well known. In the present study, 26 natural and synthetic flavonoids, divided into the 5 classes of flavones, flavonols, flavanones, isoflavones and chalcones, ... See full document

... 在離體 天竺鼠氣管的鬆弛作用 我們分析台灣款冬 (Petasites formosanus Kitamura) 所抽提的 petasins 類化合物， 包括 petasi 、 iso-petasin 、 S-petasin 與 iso-S-petasin ... See full document

... Abstract In the present study, we attempted to compare four petasins, isolated from Petasites formosanus Kitamura, and to look for structure-activity relationships, which may be helpful for synthesizing ... See full document

... 是 3,7,4'-trihydroxyflavone 的衍生物。 Fisetin 、 kaempfero l 及 quercetin 對 histamine (30μM) 、 carbachol ...quercetin 鬆弛作用類似，顯示 3' 位置以 OH group ... See full document

... 我們分析類黃鹼素各類， 包括 flavone 類(如 flavone 及 apigenin)、flavonol 類(如 flavonol)、isoflavone 類(如 genistein)、flavanone 類(如 naringenin)、 chalcone 類(如 chalcone) 之氣管鬆弛活性，並進一步探討它們的作用機轉，以 瞭解它 ... See full document