{"title":"The influence of C-terminal cholecystokinin fragments in the circulatory system of rats.","authors":"R J Wiśniewska, G Kupryszewski","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The effects of C-terminal unsulfated cholecystokinin octapeptide (CCK-8US) and its fragments C-terminal heptapeptide (CCK-7), C-terminal hexapeptide (CCK-6) and C-terminal pentapeptide (CCK-5) were studied on the arterial blood pressure and the isolated rat heart. CCK-8US had only slight hypertensive and no cardiac effects. CCK-5, CCK-6 and CCK-7 had no effect on the arterial blood pressure, the cardiac contraction amplitude and the heart rate. Only CCK-7 increased coronary outflow of the isolated rat heart. CCK-8US and C-terminal fragments; CCK-7 have little effect on the circulation of the rat.</p>","PeriodicalId":20276,"journal":{"name":"Polish journal of pharmacology and pharmacy","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1992-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polish journal of pharmacology and pharmacy","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The effects of C-terminal unsulfated cholecystokinin octapeptide (CCK-8US) and its fragments C-terminal heptapeptide (CCK-7), C-terminal hexapeptide (CCK-6) and C-terminal pentapeptide (CCK-5) were studied on the arterial blood pressure and the isolated rat heart. CCK-8US had only slight hypertensive and no cardiac effects. CCK-5, CCK-6 and CCK-7 had no effect on the arterial blood pressure, the cardiac contraction amplitude and the heart rate. Only CCK-7 increased coronary outflow of the isolated rat heart. CCK-8US and C-terminal fragments; CCK-7 have little effect on the circulation of the rat.
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