The study on the effect of hyperglycaemia on offspring fatty tissue metabolism during pregnancy

OBJECTIVE: In this study, we adopted maternal diabetes model on rats, which induced by streptozotocin to explore the metabolism changes of rat adipose tissue during the neonatal period.

MATERIALS AND METHODS: The female rats were induced as diabetes models by streptozotocin (STZ), and mated with the normal male rats when they entered into adulthood. The chosen male offspring rats were executed at week 12 and the epididymis and subcutaneous fat pad were obtained. Then the adipose cells were extracted and the foundation level and absorbing of insulin induced 2-deoxyglucose (2DG) were assessed.

RESULTS: Compared with normal control group, the body weight, fat pad weight of the epididymis and diameter of lipid cells for maternal diabetes offspring rats all increased. Lipid cells of epididymis and the intake of glucose induced by insulin increased. At the same time, glucose was oxidized to CO2 and increased lipid. However, there was no change in the capacity of in vitro lipid decomposition. Also, GLUT4, insulin receptor (IRβ), acetyl coenzyme A (ACC), etc. increased in fat pad of maternal offspring of diabetes.

CONCLUSIONS: Maternal diabetes had effect on fat metabolism of offspring; lipid storage capacity increased but the ability of lipid decomposition had no change.

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