{"title":"Activity of some lysosomal enzymes and postnatal ontogenetic development of epileptic reactivity in rabbit brain.","authors":"D Haţegan, C Bălăiţă","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The beta-glycerophosphatase (GP), p-nitrophenyl phosphatase (PNFP) and beta-glucuronidase (BG) activities in four neocortical rabbit areas have been determined in six successive electrocorticographic stages of postnatal ontogenetic development of epileptic reactivity. The lysosomal enzyme activity decreases gradually from rabbits aged 1 day to adult ones and is similar within the four neocortical areas. The activity of the three lysosomal enzymes is not parallel. Statistically significant decreases in beta-glycerophosphatase activity are present in rabbits at the age of 30 days versus adult age in all the areas investigated while beta-glucuronidase is higher at the same developmental stage only in beta retrosplenial (III) and motor (II) areas. Correlation of the electrophysiological and biochemical data cannot provide explanation for the particular phenomena of the epileptogenic reactivity in rabbit cerebral neocortex.</p>","PeriodicalId":76209,"journal":{"name":"Neurologie et psychiatrie","volume":"27 4","pages":"305-13"},"PeriodicalIF":0.0000,"publicationDate":"1989-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Neurologie et psychiatrie","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 beta-glycerophosphatase (GP), p-nitrophenyl phosphatase (PNFP) and beta-glucuronidase (BG) activities in four neocortical rabbit areas have been determined in six successive electrocorticographic stages of postnatal ontogenetic development of epileptic reactivity. The lysosomal enzyme activity decreases gradually from rabbits aged 1 day to adult ones and is similar within the four neocortical areas. The activity of the three lysosomal enzymes is not parallel. Statistically significant decreases in beta-glycerophosphatase activity are present in rabbits at the age of 30 days versus adult age in all the areas investigated while beta-glucuronidase is higher at the same developmental stage only in beta retrosplenial (III) and motor (II) areas. Correlation of the electrophysiological and biochemical data cannot provide explanation for the particular phenomena of the epileptogenic reactivity in rabbit cerebral neocortex.
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