{"title":"Endothelial surface charge: blood-brain barrier opening to horseradish peroxidase induced by the polycation protamin sulfate.","authors":"Z Nagy, H Peters, I Hüttner","doi":"10.1007/978-3-642-81553-9_2","DOIUrl":null,"url":null,"abstract":"<p><p>Perfusion of rat brain with the polycation protamin sulfate caused a decrease in the stainability of luminal surface of cerebral endothelium to positively charged colloidal iron. This change reflecting a decrease in the anionic sites of the endothelial plasma membrane was accompanied by opening of the blood-brain barrier to horseradish peroxidase. The polyanion heparin reversed colloidal iron binding but failed to prevent permeability alteration of the cerebral endothelium.</p>","PeriodicalId":75397,"journal":{"name":"Acta neuropathologica. Supplementum","volume":"7 ","pages":"7-9"},"PeriodicalIF":0.0000,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"44","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta neuropathologica. Supplementum","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/978-3-642-81553-9_2","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 44
Abstract
Perfusion of rat brain with the polycation protamin sulfate caused a decrease in the stainability of luminal surface of cerebral endothelium to positively charged colloidal iron. This change reflecting a decrease in the anionic sites of the endothelial plasma membrane was accompanied by opening of the blood-brain barrier to horseradish peroxidase. The polyanion heparin reversed colloidal iron binding but failed to prevent permeability alteration of the cerebral endothelium.
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