J Korean Diabetes.  2012 Sep;13(3):140-144.

Effect of Diabetes on Dementia and Its Preventive Strategies

  • 1Division of Endocrinology, Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Sungnam, Korea. imdrksk@chollian.net


There is considerable evidence that type 2 diabetes and its related conditions increase the risk of dementia, although the associations are stronger for vascular dementia than Alzheimer's disease. In addition to cerebrovascular disease, type 2 diabetes mellitus and dementia share several other pathophysiologic features, including hyperinsulinemia, advanced glycation end-product, inflammation, and amyloid deposition. From a clinical perspective, evidence of a link between type 2 diabetes and dementia would suggest that currently available modalities to prevent or treat type 2 diabetes mellitus might be beneficial in preventing dementia, especially Alzheimer's disease. This review summarizes the existing evidence of a link between type 2 diabetes and dementia and the clinical trials that have investigated the effects of anti-diabetic modalities on cognitive outcomes in patients with type 2 diabetes mellitus or its precursor conditions.


Alzheimer disease; Type 2 diabetes mellitus; Vascular dementia
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