Isabel Cristina Mallosto Emerich de Abreu, Joyce Ferreira da Costa Guerra, Renata Rebeca Pereira, Maísa Silva, Wanderson Geraldo de Lima, Marcelo Eustáquio Silva, Maria Lúcia Pedrosa
{"title":"高胆固醇饮食诱导大鼠肝脏脂肪变性和NADPH氧化酶mRNA表达的改变。","authors":"Isabel Cristina Mallosto Emerich de Abreu, Joyce Ferreira da Costa Guerra, Renata Rebeca Pereira, Maísa Silva, Wanderson Geraldo de Lima, Marcelo Eustáquio Silva, Maria Lúcia Pedrosa","doi":"10.1590/0004-2730000002831","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to determine whether a hypercholesterolemic diet induces hepatic steatosis, alterations in mRNA expression of NADPH oxidase subunits, and antioxidant defenses.</p><p><strong>Materials and methods: </strong>Fischer rats were divided into two groups of eight animals according to the treatment, control (C) and hypercholesterolemic diet (H). Those in group C were fed a standard diet (AIN-93M), and those of the group H were fed a hypercholesterolemic diet (25% soybean oil and 1% cholesterol).</p><p><strong>Results: </strong>The hypercholesterolemic diet did not affect body weight, but resulted in the accumulation of lipids in the liver, increased serum activities of aminotransferases and cholesterol levels. Biomarker of lipid peroxidation (TBARS) and mRNA expression of NADPH oxidase subunits p22(phox) and p47(phox) were increased in the liver of animals in group H. Besides, the activity and expression of antioxidant enzymes were altered.</p><p><strong>Conclusion: </strong>The results show increased mRNA expression of NADPH oxidase subunits and changes in antioxidant enzyme activities in diet-induced hepatic steatosis.</p>","PeriodicalId":8395,"journal":{"name":"Arquivos brasileiros de endocrinologia e metabologia","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2014-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/0004-2730000002831","citationCount":"29","resultStr":"{\"title\":\"Hypercholesterolemic diet induces hepatic steatosis and alterations in mRNA expression of NADPH oxidase in rat livers.\",\"authors\":\"Isabel Cristina Mallosto Emerich de Abreu, Joyce Ferreira da Costa Guerra, Renata Rebeca Pereira, Maísa Silva, Wanderson Geraldo de Lima, Marcelo Eustáquio Silva, Maria Lúcia Pedrosa\",\"doi\":\"10.1590/0004-2730000002831\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objective: </strong>This study aimed to determine whether a hypercholesterolemic diet induces hepatic steatosis, alterations in mRNA expression of NADPH oxidase subunits, and antioxidant defenses.</p><p><strong>Materials and methods: </strong>Fischer rats were divided into two groups of eight animals according to the treatment, control (C) and hypercholesterolemic diet (H). Those in group C were fed a standard diet (AIN-93M), and those of the group H were fed a hypercholesterolemic diet (25% soybean oil and 1% cholesterol).</p><p><strong>Results: </strong>The hypercholesterolemic diet did not affect body weight, but resulted in the accumulation of lipids in the liver, increased serum activities of aminotransferases and cholesterol levels. Biomarker of lipid peroxidation (TBARS) and mRNA expression of NADPH oxidase subunits p22(phox) and p47(phox) were increased in the liver of animals in group H. Besides, the activity and expression of antioxidant enzymes were altered.</p><p><strong>Conclusion: </strong>The results show increased mRNA expression of NADPH oxidase subunits and changes in antioxidant enzyme activities in diet-induced hepatic steatosis.</p>\",\"PeriodicalId\":8395,\"journal\":{\"name\":\"Arquivos brasileiros de endocrinologia e metabologia\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1590/0004-2730000002831\",\"citationCount\":\"29\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Arquivos brasileiros de endocrinologia e metabologia\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1590/0004-2730000002831\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Arquivos brasileiros de endocrinologia e metabologia","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1590/0004-2730000002831","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Hypercholesterolemic diet induces hepatic steatosis and alterations in mRNA expression of NADPH oxidase in rat livers.
Objective: This study aimed to determine whether a hypercholesterolemic diet induces hepatic steatosis, alterations in mRNA expression of NADPH oxidase subunits, and antioxidant defenses.
Materials and methods: Fischer rats were divided into two groups of eight animals according to the treatment, control (C) and hypercholesterolemic diet (H). Those in group C were fed a standard diet (AIN-93M), and those of the group H were fed a hypercholesterolemic diet (25% soybean oil and 1% cholesterol).
Results: The hypercholesterolemic diet did not affect body weight, but resulted in the accumulation of lipids in the liver, increased serum activities of aminotransferases and cholesterol levels. Biomarker of lipid peroxidation (TBARS) and mRNA expression of NADPH oxidase subunits p22(phox) and p47(phox) were increased in the liver of animals in group H. Besides, the activity and expression of antioxidant enzymes were altered.
Conclusion: The results show increased mRNA expression of NADPH oxidase subunits and changes in antioxidant enzyme activities in diet-induced hepatic steatosis.
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