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A prospective study of albuminuria and cognitive function in older adults: the Rancho Bernardo study. | LitMetric

A prospective study of albuminuria and cognitive function in older adults: the Rancho Bernardo study.

Am J Epidemiol

VA San Diego Healthcare System, 3350 La Jolla Village Drive, Division of GIM/G, MC 111N, San Diego, CA 92161, USA.

Published: February 2010

AI Article Synopsis

Article Abstract

Chronic kidney disease is a risk factor for cognitive impairment. Albuminuria is an early manifestation of chronic kidney disease and a marker of endothelial dysfunction and vascular risk. Results of prior studies of albuminuria and cognitive function are contradictory. The authors studied 1,345 community-dwelling women and men in southern California (mean age, 75 years) at a 1992-1996 research clinic visit, when urine albumin/creatinine ratio (ACR) was measured in spot morning urine and cognitive function was evaluated by using the Mini-Mental State Examination Trail-Making Test B, and category fluency test. An ACR of > or =30 mg/g was found in 17% of women and 15% of men in 1992-1996. Analysis of covariance was used to compare cognitive function score by categorical ACR. Between 1999 and 2002, 759 participants returned for repeat cognitive function testing. For men, but not women, baseline albuminuria, but not estimated glomerular filtration rate, was associated with reduced cognitive function at follow-up on all tests (P's < 0.05). An ACR of > or =30 mg/g was associated with greater annual decline in Mini-Mental State Examination and category fluency scores. Albuminuria may be an easily measured marker predicting future cognitive function decline. Results imply a common underlying mechanism affecting the renal and cerebral microvasculature.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2842200PMC
http://dx.doi.org/10.1093/aje/kwp426DOI Listing

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