Another Study Linking Fat and Dementia Risk

Via EurekAlert!: "excess abdominal fat places otherwise healthy, middle-aged people at risk for dementia later in life. ... [The study] included 733 community participants who had a mean age of 60 years with roughly 70% of the study group comprised of women. Researchers examined the association between Body Mass Index (BMI), waist circumference, waist to hip ratio, CT-based measures of abdominal fat, with MRI measures of total brain volume (TCBV), temporal horn volume (THV), white matter hyperintensity volume (WMHV) and brain infarcts in the middle-aged participants. ... Our results confirm the inverse association of increasing BMI with lower brain volumes in older adults and with younger, middle-aged adults and extends the findings to a much larger study sample. ... Prior studies were conducted in cohorts with less than 300 participants and the current study includes over 700 individuals. ... More importantly our data suggests a stronger connection between central obesity, particularly the visceral fat component of abdominal obesity, and risk of dementia and Alzheimer's disease ... the association between VAT and TCBV was most robust and was also independent of BMI and insulin resistance. Researchers did not observe a statistically significant correlation between CT-based abdominal fat measures and THV, WMHV or BI."

Link: http://www.eurekalert.org/pub_releases/2010-05/w-afa051910.php

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