Efeitos do treinamento físico sobre o estresse oxidativo em fígado e pâncreas de ratos diabéticos

• Ano de defesa: 2015
• Autor(a) principal: Pereira, Aron da Silva [UNESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Sports medicine; Medicina esportiva; Exercícios físicos; Educação fisica; Radicais livres (Quimica); Diabetes mellitus; Figado; Pancreas
• Link de acesso: http://hdl.handle.net/11449/132660; http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/05-01-2016/000855809.pdf

Exercise is well known for its numerous health benefits, however, although well studied, its effect on the diabetic body and its relationship with oxidative stress remains to be further investigated. Therefore, this study aimed to investigate the effects of exercise training in biomarkers of oxidative damage to membrane lipids in the liver and pancreas and antioxidant protection (superoxide dismutase and catalase enzymes) in diabetic rats aloxanics. For this, Wistar rats were distributed in 4 groups: sedentary control (SC), trained control (TC), sedentary diabetic (SD) and trained diabetic (TD). Training consisted of a swim session for 1 hour per day for 5 days / week for 8 weeks with a load equivalent to anaerobic threshold, and 5.8% of body weight for CT group and 4.2% the DT group. They were analyzed in blood glucose concentrations, cholesterol, triglycerides and activity of catalase (CAT) and superoxide dismutase (SOD) in the liver and pancreas and analyzed biomarkers of oxidative damage to membrane lipids (products react thiobarbituric acid - TBARS) in the liver. Physical training reduced diabetic symptoms alleviated loss of body mass, and increased the hepatic glycogen content, reduced C-reactive protein concentrations in the liver catalase did not differ significantly, the SOD activity was low and peroxidation levels were high. In the pancreas, physical training increased catalase levels in diabetic animals without, however, changing the activity of SOD and suggest improvements in the health of diabetic rats. Physical training has helped in controlling oxidative stress, mitigating losses promoted by alloxan diabetes