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Teixeira, Leonardo Augusto Costa; Soares, Luana Aparecida; Parentoni, Adriana Netto; Nobre, Juliana Nogueira Pontes; Figueiredo, Pedro Henrique Scheidt; Leopoldino, Amanda Aparecida Oliveira; Avelar, Nubia Carelli Pereira; Mendonça, Vanessa Amaral; Lacerda, Ana Cristina Rodrigues
Clinical nutrition open science, June 2024, 2024-06-00, 2024-06-01, Volume: 55Journal Article
The concomitant loss of lean muscle mass and bone mineral density is known as osteosarcopenia. This disorder can result in increased physical impairment in addition to an increased risk of falls and fractures. Although the diagnostic of osteoporosis and sarcopenia has been described, the inflammatory mediators that identify the presence of osteosarcopenia and propose possible inflammatory mechanisms implicated in muscle and bone loss are unknown. The objective of this study was to evaluate a panel of inflammatory biomarkers and investigate its relationship with the presence of osteosarcopenia. Body composition was assessed using Dual X-ray absorptiometry and handgrip strength using a Jamar dynamometer. Blood samples were collected for evaluation the plasmatic concentrations of adiponectin, brain-derived neurotrophic factor (BDNF), interferon ɣ (IFN), interleukins 2, 4, 5, 6, 8 and 10, leptin, resistin, tumour necrosis factor (TNF) and its soluble receptors (sTNFr) 1 and 2. In seventy-one older women the age was 75 (±7) years, BMI 26.1 (±4.5) kg/m2, handgrip strength 19 (±6) kgf and the muscle mass index was 6.39 (±1.05) kg/m2. The diagnosis of osteosarcopenia was found in 25% of the sample. Analysis of the distribution of biomarkers demonstrate the osteosarcopenia group presented greater concentrations among all markers measured, and significant differences was found in plasmatic concentrations of interleukin 8 (p = 0.02). Subgroup analysis showed that group with osteopenia plus sarcopenia had significantly greater IL-6 (p = 0.03) and IL-8 (p = 0.007) concentrations. In a panel of biomarkers, IL-6 and IL-8 were found to be related with diagnosis of osteosarcopenia in community-dwelling older women. These results may contribute to understand the inflammatory mechanisms and suggest a diagnostic strategy for these patients, also informing new strategies for prevention, monitoring, and treatment of osteosarcopenia.
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