{"title":"Enhancement of Aflatoxin B1 induced liver carcinogenesis by portal diversion in the rat.","authors":"D Franco, J Morin, A M Szekely, H Bismuth","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Conflicting results have been reported on the influence of portacaval anastomosis on liver carcinogenesis. The purpose of this investigation was to study the effect of portal diversion on liver carcinogenesis induced in the rat by a potent chemical liver carcinogen, Aflatoxin B1 (AFB1). Liver tumors appeared earlier and were significantly bigger in rats with shunts than in sham-operated controls. Portal diversion also induced in rats fed AFB1 a splenic atrophy with nearly complete disappearance of Malpighian corpuscles suggesting a profound immunodepression. This might be responsible for the enhancement of liver cancer by portacaval anastomosis in the rats fed AFB1. Thus, the influence of portal diversion on liver cancers appears to be multifactorial.</p>","PeriodicalId":9217,"journal":{"name":"Biomedicine / [publiee pour l'A.A.I.C.I.G.]","volume":"35 5","pages":"162-5"},"PeriodicalIF":0.0000,"publicationDate":"1981-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biomedicine / [publiee pour l'A.A.I.C.I.G.]","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
Conflicting results have been reported on the influence of portacaval anastomosis on liver carcinogenesis. The purpose of this investigation was to study the effect of portal diversion on liver carcinogenesis induced in the rat by a potent chemical liver carcinogen, Aflatoxin B1 (AFB1). Liver tumors appeared earlier and were significantly bigger in rats with shunts than in sham-operated controls. Portal diversion also induced in rats fed AFB1 a splenic atrophy with nearly complete disappearance of Malpighian corpuscles suggesting a profound immunodepression. This might be responsible for the enhancement of liver cancer by portacaval anastomosis in the rats fed AFB1. Thus, the influence of portal diversion on liver cancers appears to be multifactorial.
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