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Plasma Inflammatory Biomarkers and Anorexia of Ageing among Community-Dwelling Older Adults: An Exploratory Analysis of the MAPT Study

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Sánchez-Sánchez, Juan, Luis | Gillette-Guyonnet, Sophie | Lucas, Alexandre | Parini, Angelo | Rolland, Yves | Barreto de Souto, Philipe

Edité par CCSD ; Springer Verlag (Germany) -

International audience. Anorexia of aging and biological aging might share physiological underpinnings. The aim of this secondary analysis was to investigate the associations between circulating inflammation-related markers and anorexia of aging in community-dwelling older adults. C-reactive protein (CRP), tumor necrosis factor receptor-1 (TNFR-1), interleukin-6 (IL-6), monocyte chemoattractant protein-1 (MCP-1) and growth/differentiation factor-15 (GDF-15) were measured in plasma. Anorexia of aging was defined by the response "severe/moderate decrease in food intake" to the first item of the Mini-Nutritional Assessment. We included 463 subjects (median age=74y, IQR=71-78; 63.1% women). 33 subjects (7.1%) presented with anorexia at baseline, whereas 25 out of 363 (6.9%) developed it along 1-year follow-up. We found that TNFR1 (OR=1.74, 95%CI=1.27-2.39) and GDF-15 (OR=1.38, 95%CI=1.01-1.89) were associated with a significant increase in the odds of presenting with anorexia of aging cross-sectionally. No further significant associations were found. Biological aging mechanisms might be involved in the pathogenesis of anorexia of aging.

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