The etiology of type 2 diabetes is characterized by obesity, insulin and leptin resistance, and compensatory β cell hyperplasia followed by islet degeneration, resulting in the eventual dysregulation of glucose and lipid homeostasis. The recent identification of insulin receptor substrate 2 (IRS2) as a central player in the pathophysiology of many of these processes suggests a potentially unifying molecular link underlying the initiation and progression of type 2 diabetes.


Matthew J. Brady


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