Inflammatory markers and depressed mood in older persons: Results from the Health, Aging and Body Composition study
Inflammatory markers and depressed mood in older persons: Results from the Health, Aging and Body Composition study
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DOI:
10.1016/s0006-3223(02)01811-5
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发表时间:
2003-09-01
影响因子:
10.6
通讯作者:
Pahor, M
中科院分区:
文献类型:
--
作者:
Penninx, BWJH;Kritchevsky, SB;Pahor, M
Background: Patients with major depression have elevated levels of inflammatory cytokines. We examined the link between inflammatory markers and depressed mood in a community-based sample of older people.Methods: Data are from 3024 well-functioning older persons, 70-79 years of age, participating in the Health, Aging and Body Composition study. Depressed mood was defined as a Center for Epidemiologic Studies Depression scale score of 16 or higher. Plasma concentrations of interleukin (IL)-6, tumor necrosis factor (TNF)-alpha, and C-reactive protein (CRP) were measured.Results: Compared with the 2879 nondepressed subjects, the 145 persons with depressed mood had higher median plasma levels of IL-6 (2.04 vs. 1.83 pg/mL, p=.02), TNF-alpha (3.43 vs. 3.16 pg/mL, p=.05), and CRP (1.96 vs. 1.66 mg/L, p=.03). After adjustment for health and demographic variables, depressed mood was especially prevalent among persons who had a high (above median) plasma level for at least two of the inflammatory markers. Compared with those without high levels, for persons with a high level for two or all three markers the risk of depressed mood was 2.45 (95% confidence interval [CI]=1.34-4.47) and 2.40 (95% CI=1.27-4.53), respectively. The association between depressed mood and serum level of IL-6 was significantly stronger in men than in women.Conclusions: In old age, depressed mood is associated with high levels of inflammatory markers, suggesting that depressed mood is causing and/or caused by systemic inflammation.