期刊
DEMENTIA AND GERIATRIC COGNITIVE DISORDERS
卷 29, 期 4, 页码 356-362出版社
KARGER
DOI: 10.1159/000296071
关键词
Metabolic syndrome; Insulin resistance; Memory; Cognitive functioning; Diabetes, type 2; Glucose tolerance; Cognitive impairment
资金
- National Institutes of Health [DK064087]
- National Center for Research Resources [1UL1RR029893]
- NATIONAL CENTER FOR RESEARCH RESOURCES [UL1RR029893] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES [R01DK064087] Funding Source: NIH RePORTER
Aims: To determine whether middle-aged individuals with metabolic syndrome, both with and without type 2 diabetes, exhibit cognitive impairments, and to determine the role of each metabolic syndrome component in those associations. Methods: 143 participants were drawn from ongoing studies of normal aging. Metabolic syndrome was diagnosed in 73 participants (age: 60.4 +/- 8.4 years), who were contrasted with 70 age-and education-matched controls. Results: Metabolic syndrome was associated with reductions in recall (p = 0.006), lower overall intellectual functioning (p = 0.013), and nearly significant reductions in learning (p = 0.066) and executive functioning (p = 0.050). These effects were only marginally attenuated when controlling for type 2 diabetes diagnosis. Of the 5 components of the metabolic syndrome, insulin resistance was the only significant predictor of variance in learning and recall. In addition, the number of metabolic syndrome criteria met was inversely associated with cognitive performance. Conclusions: These results indicate that impairments in cognitive functioning associated with metabolic syndrome and type 2 diabetes may begin as early as middle age and are primarily due to insulin resistance. These results demonstrate the importance of screening at-risk adults for insulin resistance in order to initiate lifestyle modifications to reverse or prevent these cognitive changes. Copyright (C) 2010 S. Karger AG, Basel
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