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Revista MVZ Córdoba

versión impresa ISSN 0122-0268

Resumen

FIGUEROA G, M Consuelo; PEREZ H, Ismael H  y  MEJIA Z, Ricardo. Characterization of a type 2 diabetes model in female Wistar rats. Rev.MVZ Cordoba [online]. 2013, vol.18, suppl.1, pp.3699-3707. ISSN 0122-0268.

Objective. Characterization of a type 2 diabetes mellitus (DM2) model in female rats. Materials and methods. 20, 48 hour-old wistar female rats were used; 10 were intraperitoneally injected with streptozotocin (STZ) [135 mg/kg body weight] in 50 µl citrate buffer pH 4.5 (induced group) and 10 were injected with 50 µl of citrate buffer (control group). Results. The induced group had average glycemias of 7.8±2 mmol/L (52.9%; p<0.005) and a body weight of 334.4±12 g (51.6 g lower than the control group; p<0.05) at the end of the treatment. The cholesterol concentration was two-fold higher in the induced group. Triglyceride concentration was not different during the first month, but it was 50% higher on the second month for the induced group (p<0.05). The concentration of glycated hemoglobin was 4.3% for the control group and 5.9% for the induced group (p<0.05). The glucose tolerance curve was altered in the induced group with blood glucose concentrations in diabetic animals over 7.4 mmol/L until 240 min. Conclusions. According to the parameters currently used for diagnostic and control of diabetes in humans, the results displayed in this study support the development of a DM2 model in female rats through the use of STZ.

Palabras clave : Cholesterol; Hyperglycemia; rat.

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