{"title":"对照动物和经多氯联苯(PCBs)混合物aroclor 1254处理的动物肝脏微粒体对二、三、四溴联苯的代谢","authors":"J.T. Borlakoglu , J.P.G. Wilkins","doi":"10.1016/0742-8413(93)90065-S","DOIUrl":null,"url":null,"abstract":"<div><p>1. The metabolism of di-, tri- and tetrabromobiphenyls (PBBs) by hepatic microsomes isolated from control animals and animals treated with Arochlor 1254 was studied.</p><p>2. Hepatic microsomes isolated fom control rats expressed higher rates of oxidations than avians</p><p>3. Treatment of rats and pigeons with Arochlor 1254 induced cytochrome P450 dependent monooxygenases leading to an increased regioselective metabolism of PBB isomer and congeneres.</p><p>4. There was an inverse relationship between the degree of halosubstitution and microsomal oxidation. <em>Meta-para</em> carbon atoms free of halosubstitution were the preferred side for oxidation.</p></div>","PeriodicalId":72650,"journal":{"name":"Comparative biochemistry and physiology. C: Comparative pharmacology","volume":"105 1","pages":"Pages 107-112"},"PeriodicalIF":0.0000,"publicationDate":"1993-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0742-8413(93)90065-S","citationCount":"0","resultStr":"{\"title\":\"Metabolism of di-, tri- and tetrabromobiphenyls by hepatic microsomes isolated from control animals and animals treated with aroclor 1254, a commercial mixture of polychlorinated biphenyls (PCBs)\",\"authors\":\"J.T. Borlakoglu , J.P.G. Wilkins\",\"doi\":\"10.1016/0742-8413(93)90065-S\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>1. The metabolism of di-, tri- and tetrabromobiphenyls (PBBs) by hepatic microsomes isolated from control animals and animals treated with Arochlor 1254 was studied.</p><p>2. Hepatic microsomes isolated fom control rats expressed higher rates of oxidations than avians</p><p>3. Treatment of rats and pigeons with Arochlor 1254 induced cytochrome P450 dependent monooxygenases leading to an increased regioselective metabolism of PBB isomer and congeneres.</p><p>4. There was an inverse relationship between the degree of halosubstitution and microsomal oxidation. <em>Meta-para</em> carbon atoms free of halosubstitution were the preferred side for oxidation.</p></div>\",\"PeriodicalId\":72650,\"journal\":{\"name\":\"Comparative biochemistry and physiology. C: Comparative pharmacology\",\"volume\":\"105 1\",\"pages\":\"Pages 107-112\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1993-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0742-8413(93)90065-S\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Comparative biochemistry and physiology. C: Comparative pharmacology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/074284139390065S\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Comparative biochemistry and physiology. C: Comparative pharmacology","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/074284139390065S","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Metabolism of di-, tri- and tetrabromobiphenyls by hepatic microsomes isolated from control animals and animals treated with aroclor 1254, a commercial mixture of polychlorinated biphenyls (PCBs)
1. The metabolism of di-, tri- and tetrabromobiphenyls (PBBs) by hepatic microsomes isolated from control animals and animals treated with Arochlor 1254 was studied.
2. Hepatic microsomes isolated fom control rats expressed higher rates of oxidations than avians
3. Treatment of rats and pigeons with Arochlor 1254 induced cytochrome P450 dependent monooxygenases leading to an increased regioselective metabolism of PBB isomer and congeneres.
4. There was an inverse relationship between the degree of halosubstitution and microsomal oxidation. Meta-para carbon atoms free of halosubstitution were the preferred side for oxidation.
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