skip to main content

Progression of Lipid Peroxidation Measured as Thiobarbituric Acid Reactive Substances, Damage to DNA and Histopathological Changes in the Liver of Rats Subjected to a Methionine-Choline-Deficient Diet

Jordao, Alceu Afonso; Zanutto, Marcia Elena; Domenici, Fernanda Aparecida; Portari, Guilherme Vannucchi; Cecchi, Andrea Oliveira; Zucoloto, Sergio; Vannucchi, Helio Universidade De São Paulo

BASIC & CLINICAL PHARMACOLOGY & TOXICOLOGY, v.105, n.3, p.150-155, 2009

WILEY-BLACKWELL PUBLISHING, INC 2009

Acesso online

  • Título:
    Progression of Lipid Peroxidation Measured as Thiobarbituric Acid Reactive Substances, Damage to DNA and Histopathological Changes in the Liver of Rats Subjected to a Methionine-Choline-Deficient Diet
  • Autor: Jordao, Alceu Afonso; Zanutto, Marcia Elena; Domenici, Fernanda Aparecida; Portari, Guilherme Vannucchi; Cecchi, Andrea Oliveira; Zucoloto, Sergio; Vannucchi, Helio
  • Universidade De São Paulo
  • Assuntos: Nonalcoholic Steatohepatitis; Insulin-Resistance; Disease; Model; Alpha; Doxorubicin; Injury; Repair; Cells; Assay; Pharmacology & Pharmacy; Toxicology
  • É parte de: BASIC & CLINICAL PHARMACOLOGY & TOXICOLOGY, v.105, n.3, p.150-155, 2009
  • Descrição: Methionine-choline-deficient diet represents a model for the study of the pathogenesis of steatohepatitis. Male rats were divided into three groups, the first group receiving a control diet and the other two groups receiving a methionine-choline-deficient diet for 1 month (MCD1) and for 2 months (MCD2), respectively. The livers of the animals were collected for the determination of vitamin E, thiobarbituric acid reactive substances (TBARS), GSH concentration, DNA damages, and for histopathological evaluation. The hepatic TBARS and GSH content was higher (P < 0.05) in the groups receiving the experimental diet (MCD1 and MCD2) compared to control diet, and hepatic vitamin E concentration differed (P < 0.05) between the MCD1 and MCD2 groups, with the MCD2 group presenting a lower concentration. Damage to hepatocyte DNA was greater (P < 0.05) in the MCD2 group (262.80 DNA injuries/100 hepatocytes) compared to MCD1 (136.4 DNA injuries/100 hepatocytes) and control diet (115.83 DNA injuries/100 hepatocytes). Liver histopathological evaluation showed that steatosis, present in experimental groups was micro- and macro-vesicular and concentrated around the centrolobular vein, zone 3, with preservation of the portal space. The inflammatory infiltrate was predominantly periductal and the steatosis and inflammatory infiltrate was similar in the MCD1 and MCD2 groups, although the presence of Mallory bodies was greater in the MCD2 group. The study describes the contribution of a methionine-choline-deficient diet to the progression of steatosis, lipid peroxidation and hepatic DNA damage in rats, serving as a point of reflection about the role of these nutrients in the western diet and the elevated non-alcoholic steatohepatitis rates in humans.
  • DOI: 10.1111/j.1742-7843.2009.00394.x
  • Títulos relacionados: Basic & Clinical Pharmacology & Toxicology
  • Editor: WILEY-BLACKWELL PUBLISHING, INC
  • Data de publicação: 2009
  • Idioma: Inglês

Buscando em bases de dados remotas. Favor aguardar.