Enhancement of 5-hydroxytryptamine-induced contraction of guinea pig ileum by a new sulfur compound, tripropylsulfonium bromide
نویسندگان
چکیده
منابع مشابه
Antispasmodic Activity of Persea cordata Vell. Mez. (Lauraceae) Fractions on Guinea Pig Ileum Induced by 5-Hydroxytryptamine and Bradykinin
Problem statement: Persea cordata previously demonstrated antispasmodic action against two neurotransmitters. It is important confirm such action against other neurotransmitters. Approach: Present study described the antispasmodic activity of polar (EtOAc; n-BuOH) and non polar (nhexane; dichloromethane) fractions from the bark of Persea cordata, against guinea pig ileum contracted by 5-hydroxy...
متن کاملQuercetin inhibits anaphylactic contraction of guinea pig ileum smooth muscle.
Certain flavonoids inhibit antigen-induced release of histamine from mast cells and basophils and also inhibit contraction of guinea pig ileum induced by histamine, acetylcholine, and PGE2. We examined the effect of one flavonoid, quercetin, on anaphylactic smooth muscle contraction of ileum from guinea pigs sensitized to egg albumin. Quercetin inhibited both the phasic and tonic components of ...
متن کاملPinacidil suppression on 5-HT3 receptor-mediated contraction of guinea pig ileum in vitro.
AIM To study the effects of the K+ channel opener pinacidil on 5-HT3 receptor-mediated contractions of the isolated guinea pig ileum (GPI) longitudinal muscle-myenteric plexus strip preparations. METHODS GPI contractions were recorded with a chart recorder through isometric transducers. The effect of pinacidil on binding properties of 5-HT3 receptors was assessed using [3H]GR65630 binding ass...
متن کاملPropulsion in guinea pig colon induced by 5-hydroxytryptamine (HT) via 5-HT4 and 5-HT3 receptors.
Previous studies have shown that the intestinal peristaltic reflex initiated by mucosal stimulation is mediated by release of 5-hydroxytryptamine (HT) from enterochromaffin cells; 5-HT acts via 5-HT4 receptors in rat and human, and via both 5-HT4 and 5-HT3 receptors in guinea pig to activate intramural sensory neurons that release calcitonin gene-related peptide. In this study, selective agonis...
متن کاملsolution of security constrained unit commitment problem by a new multi-objective optimization method
چکیده-پخش بار بهینه به عنوان یکی از ابزار زیر بنایی برای تحلیل سیستم های قدرت پیچیده ،برای مدت طولانی مورد بررسی قرار گرفته است.پخش بار بهینه توابع هدف یک سیستم قدرت از جمله تابع هزینه سوخت ،آلودگی ،تلفات را بهینه می کند،و هم زمان قیود سیستم قدرت را نیز برآورده می کند.در کلی ترین حالتopf یک مساله بهینه سازی غیر خطی ،غیر محدب،مقیاس بزرگ،و ایستا می باشد که می تواند شامل متغیرهای کنترلی پیوسته و گ...
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ژورنال
عنوان ژورنال: Japanese Journal of Pharmacology
سال: 1975
ISSN: 0021-5198
DOI: 10.1016/s0021-5198(19)65647-7