Multidisciplinary Institute of Health, Anísio Teixeira Campus, Federal University of Bahia, 58 Rio de Contas Street, 17 Block, 58 Lot, Candeias, 45.029-094 Vitória da Conquista, Bahia, Brazil.
Training Center in Health Sciences, Federal University of Southern Bahia, 58 Joana Angélica Square, São José, 45.988-058 Teixeira de Freitas, Bahia, Brazil.
Exp Gerontol. 2022 Dec;170:112005. doi: 10.1016/j.exger.2022.112005. Epub 2022 Oct 28.
Age-related changes in the body's physiological responses play a critical role in systemic arterial hypertension (SAH) and type 2 Diabetes mellitus (T2DM). SAH and T2DM have clinically silent low-grade inflammation as a common risk factor. This inflammation has a relevant element, the excess of fatty tissue. In this scenario, little is known about how inflammatory markers interact with each other. Therefore, this work evaluated the interplay among anthropometric, biochemical, and inflammatory markers in the elderly with SAH and T2DM. Men aged 60-80 years old with SAH and T2DM were classified by body mass index (BMI) as eutrophic elderly (EE, 24 individuals) or overweight elderly (OE, 25 individuals). Body composition analysis was performed using bioimpedance. Blood samples were collected to perform inflammatory and biochemical evaluations. The cytokines IL-17A, IL-1β, IFN-y, TNF-α, and IL-10, were evaluated by ELISA. Triglycerides, total and fractions of cholesterol, and glucose were measured by spectrophotometry. Overweight elderly men had a higher glycemic index and an increase in most anthropometric markers, as well as higher means for all pro-inflammatory cytokines analyzed (IL-17A, IL-1β, IFN-y, and TNF-α) in comparison to their eutrophic elderly counterparts. However, there was a decrease in IL-10 anti-inflammatory cytokine and IL-10/IL-17A ratio compared to their eutrophic elderly counterparts. Although overweight elderly men have worsening inflammatory parameters, the magnitude of their correlations with anthropometric and biochemical parameters becomes less evident. The Bayesian networks highlight that in the eutrophic elderly, IL-17A and TNF-α are the cytokines most associated with interactions, and most of these interactions occur with biochemical parameters. It is worth highlighting the role of IFN-y in overweight elderly men. This cytokine influences IL-10 and TNF-α production, contributing to the inflammatory profile exacerbated in this group.
随着年龄的增长,机体生理反应的变化在系统性动脉高血压(SAH)和 2 型糖尿病(T2DM)中起着关键作用。SAH 和 T2DM 具有临床无症状的低度炎症这一共同的危险因素。这种炎症有一个相关的因素,即脂肪组织过多。在这种情况下,人们对炎症标志物之间如何相互作用知之甚少。因此,本工作评估了 SAH 和 T2DM 老年患者中人体测量学、生化和炎症标志物之间的相互作用。将 60-80 岁的 SAH 和 T2DM 男性按体重指数(BMI)分为正常体重老年人(EE,24 人)或超重老年人(OE,25 人)。使用生物阻抗法进行身体成分分析。采集血样进行炎症和生化评估。通过 ELISA 评估细胞因子 IL-17A、IL-1β、IFN-y、TNF-α 和 IL-10。通过分光光度法测量甘油三酯、总胆固醇和胆固醇各部分以及葡萄糖。与他们的正常体重老年人相比,超重老年人的血糖指数更高,大多数人体测量标志物增加,所有分析的促炎细胞因子(IL-17A、IL-1β、IFN-y 和 TNF-α)的平均值也更高。然而,抗炎细胞因子 IL-10 和 IL-10/IL-17A 比值下降。尽管超重老年人的炎症参数恶化,但它们与人体测量学和生化参数的相关性程度变得不那么明显。贝叶斯网络突出显示,在正常体重老年人中,IL-17A 和 TNF-α 是与相互作用最相关的细胞因子,并且这些相互作用大多发生在生化参数上。值得强调超重老年人中 IFN-y 的作用。这种细胞因子影响 IL-10 和 TNF-α 的产生,导致该组炎症谱恶化。
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