{"title":"dl-3-n-butylphthalide improves regional cerebral blood flow after experimental subarachnoid hemorrhage in rats.","authors":"Z Z Chong, Y P Feng","doi":"","DOIUrl":null,"url":null,"abstract":"<p><strong>Aim: </strong>To investigate the effect of dl-3-n-butylphthalide (dl-NBP) on experimental subarachnoid hemorrhage (SAH) in rats.</p><p><strong>Methods: </strong>SAH was induced by injection of autologous artery blood 0.35 mL into lateral ventricle. Regional cerebral blood flow (rCBF) in caudate nucleus was determined by hydrogen clearance method.</p><p><strong>Results: </strong>A rapid and marked decrease in rCBF in caudate nucleus was observed 15 min after SAH and the rCBF remained at low level (about 50% pre-SAH value) within 180 min. dl-NBP (50, 100 mg.kg-1, i.g.) increased rCBF 30-180 min after the onset of SAH without significant effect on mean artery blood pressure. dl-NBP 100 mg.kg-1 increased rCBF in caudate nucleus by 26% at 15 min and by 36% at 180 min respectively after SAH. d-NBP but not l-NBP (10 mg.kg-1, i.p.) increased rCBF.</p><p><strong>Conclusion: </strong>dl-NBP improves rCBF in caudate nucleus of rats subjected to SAH.</p>","PeriodicalId":24002,"journal":{"name":"Zhongguo yao li xue bao = Acta pharmacologica Sinica","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1999-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zhongguo yao li xue bao = Acta pharmacologica Sinica","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
Aim: To investigate the effect of dl-3-n-butylphthalide (dl-NBP) on experimental subarachnoid hemorrhage (SAH) in rats.
Methods: SAH was induced by injection of autologous artery blood 0.35 mL into lateral ventricle. Regional cerebral blood flow (rCBF) in caudate nucleus was determined by hydrogen clearance method.
Results: A rapid and marked decrease in rCBF in caudate nucleus was observed 15 min after SAH and the rCBF remained at low level (about 50% pre-SAH value) within 180 min. dl-NBP (50, 100 mg.kg-1, i.g.) increased rCBF 30-180 min after the onset of SAH without significant effect on mean artery blood pressure. dl-NBP 100 mg.kg-1 increased rCBF in caudate nucleus by 26% at 15 min and by 36% at 180 min respectively after SAH. d-NBP but not l-NBP (10 mg.kg-1, i.p.) increased rCBF.
Conclusion: dl-NBP improves rCBF in caudate nucleus of rats subjected to SAH.
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