We read with interest the article by Dr Arvanitakis and colleagues whose prospective study reports an association between diabetes mellitus and an increased risk for Alzheimer Disease (AD),1 as well as more rapid decline in perceptual speed. Excellent cognitive testing also identified that persons with diabetes mellitus in their sample started with lower baseline scores in multiple areas of cognition and memory.
Franco KSN, Bronson D. Diabetes Mellitus and Alzheimer Disease. Arch Neurol. 2005;62(2):330. doi:10.1001/archneur.62.2.330-a