Type 2 diabetes mellitus being one of the most prevalent diseases in the world has led to a variety of research using animal models. This review focuses on various rat models to study the effect that surgical procedures have on type 2 diabetes mellitus and obesity. Rat models can be classified as Obese Diabetic, Non-Obese Diabetic, Obese Non-Diabetic, and Non-Obese Non-Diabetic. Here, we have discussed the particular characteristics of each rat so that it can provide the appropriate model to study different pathological processes involve in type 2 Diabetes and obesity.
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