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Peristalsis evoked by 5-HT and renzapride: evidence for putative 5-HT4 receptor activation.

机译:5-HT和伦扎必利引起的蠕动:可能的5-HT4受体激活的证据。

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摘要

The effect of 5-hydroxytryptamine and renzapride was studied on the peristaltic reflex elicited in vitro in the guinea-pig ileum. Both agents evoked the reflex at subthreshold intraluminal pressures (50% of threshold) and were blocked by ICS 205-930 (3 microM), but not ondansetron (5 microM). This novel finding suggests strongly that the prokinetic action of renzapride and gut motility stimulating action of 5-hydroxytryptamine are mediated via agonism at the putative 5-HT4 receptor.
机译:研究了5-羟基色胺和伦扎必利对豚鼠回肠体外诱发的蠕动反射的影响。两种药物均在低于阈值的腔内压力(阈值的50%)下引起反射,并被ICS 205-930(3 microM)阻断,但未被昂丹西酮(5 microM)阻断。这个新发现强烈表明,伦扎必利的促运动作用和5-羟色胺的肠蠕动刺激作用是通过对假定的5-HT 4受体的激动作用介导的。

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