期刊
DEMENTIA AND GERIATRIC COGNITIVE DISORDERS EXTRA
卷 3, 期 1, 页码 212-222出版社
KARGER
DOI: 10.1159/000351424
关键词
Chronic kidney disease; Albuminuria; Glomerular filtration rate; Cerebral small vessel disease; Cognitive impairment Elderly; Diabetes; Magnetic resonance imaging
资金
- Japan Labor Health and Welfare Organization
Background/Aims: In recent years, the relationship between chronic kidney disease (CKD) and cognitive impairment has been attracting attention. Cerebral small vessel disease (SVD) is also associated with an increased risk of cognitive impairment. However, it is still unknown whether CKD markers are associated with cognitive impairment independently of SVD in elderly diabetic patients. Methods: Seventy-nine type 2 diabetic patients ( mean age, 76.0 years) were enrolled in the present study. CKD was defined as the presence of albuminuria and/or a low estimated glomerular filtration rate (eGFR < 60 ml/min/1.73 m(2)). SVD was evaluated by the presence and severity of silent brain infarcts (SBIs) and white matter lesions (WMLs) on brain magnetic resonance imaging. Neuropsychological tests were assessed using four validated cognitive instruments. Results: In multiple linear regression analyses, albuminuria was associated with worse modified Stroop Color Word scores (beta = 0.284, p = 0.017) and low eGFR was associated with reduced Digit Symbol Substitution scores (beta = - 0.224, p = 0.026) after adjustment for age, sex, education years, diabetes duration, hypertension, multiple SBIs, and advanced WMLs. In contrast, there were no significant associations between CKD markers and Mini-Mental State Examination or Word Recall scores. Conclusion: Our findings suggest that albuminuria and low eGFR are associated with frontal lobe dysfunction independently of SVD in elderly type 2 diabetic patients. (C) 2013 S. Karger AG, Basel.
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