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Glycyrrhizin ameliorates insulin resistance, hyperglycemia, dyslipidemia and oxidative stress in fructose-induced metabolic syndrome-X in rat model.
Indian J Exp Biol ; 2013 Feb; 51(2): 129-138
Artigo em Inglês | IMSEAR | ID: sea-147576
ABSTRACT
This study investigates if glycyrrhizin, a constituent of licorice (Glycyrrhiza glabra) root, is able to treat the complications (insulin resistance, hyperglycemia, dyslipidemia and oxidative stress) of metabolic syndrome. Metabolic syndrome was induced in rats by feeding a fructose-enriched (60%) diet for six weeks, after which single dose of glycyrrhizin (50 mg/kg body weight) was administered intraperitoneally. Different biochemical parameters from blood were estimated during three weeks after treatment. Then the rats were sacrificed to collect skeletal muscle tissue. Glycyrrhizin reduced the enhanced levels of blood glucose, insulin and lipids in metabolic syndrome group. Increased advanced glycation end products of hemoglobin, glycohemoglobin, hemoglobin-mediated iron release and iron-mediated free radical reactions (arachidonic acid and deoxyribose degradation) in metabolic syndrome were inhibited by glycyrrhizin treatment. Reduced activities of enzymatic antioxidants (superoxide dismutase and catalase) and elevated oxidative stress markers (malonaldehyde, fructosamine, hemoglobin carbonyl content and DNA damage) in metabolic syndrome were reversed to almost normal levels by glycyrrhizin. The decreased levels of peroxisome proliferator activated receptor (PPAR) and glucose transporter 4 (GLUT4) proteins in skeletal muscle of metabolic syndrome group were elevated by glycyrrhizin, indicating improved fatty acid oxidation and glucose homeostasis.
Assuntos

Texto completo: DisponíveL Índice: IMSEAR (Sudeste Asiático) Assunto principal: Ratos / Extratos de Tecidos / Glicemia / Peso Corporal / Dano ao DNA / Masculino / Hemoglobinas / Resistência à Insulina / Linfócitos / Biomarcadores Idioma: Inglês Revista: Indian J Exp Biol Ano de publicação: 2013 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: IMSEAR (Sudeste Asiático) Assunto principal: Ratos / Extratos de Tecidos / Glicemia / Peso Corporal / Dano ao DNA / Masculino / Hemoglobinas / Resistência à Insulina / Linfócitos / Biomarcadores Idioma: Inglês Revista: Indian J Exp Biol Ano de publicação: 2013 Tipo de documento: Artigo