{"title":"Vascular reactivity of the efferent branchial arteries of the lemon shark, Negaprion queenslandicus","authors":"M.B. Bennett","doi":"10.1016/0742-8413(93)90098-6","DOIUrl":null,"url":null,"abstract":"<div><p>1. Efferent branchial artery tissue rings from <em>Negaprion queenslandicus</em> were used to examine the effects of adrenergic and cholinergic drugs on the vasculature.</p><p>2. The presence of α- and β-adrenoceptors were demonstrated.</p><p>3. Adrenaline and noradrenaline produced variable, including biphasic, responses.</p><p>4. Acetylcholine produced concentration-dependent contractions in the presence of a predominantly intact endothelium.</p></div>","PeriodicalId":72650,"journal":{"name":"Comparative biochemistry and physiology. C: Comparative pharmacology","volume":"105 3","pages":"Pages 535-541"},"PeriodicalIF":0.0000,"publicationDate":"1993-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0742-8413(93)90098-6","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Comparative biochemistry and physiology. C: Comparative pharmacology","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0742841393900986","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
1. Efferent branchial artery tissue rings from Negaprion queenslandicus were used to examine the effects of adrenergic and cholinergic drugs on the vasculature.
2. The presence of α- and β-adrenoceptors were demonstrated.
3. Adrenaline and noradrenaline produced variable, including biphasic, responses.
4. Acetylcholine produced concentration-dependent contractions in the presence of a predominantly intact endothelium.
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