Department of Diabetes, Metabolism, and Endocrinology, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Itabashi-ku, Tokyo, Japan.
The Center for Comprehensive Care and Research for Prefrailty, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Itabashi-ku, Tokyo, Japan.
J Diabetes Investig. 2024 Oct;15(10):1510-1518. doi: 10.1111/jdi.14274. Epub 2024 Aug 6.
AIMS/INTRODUCTION: To investigate whether sarcopenic obesity is associated with the progression of atherosclerotic lesions in older patients with diabetes and to identify the obesity components of sarcopenic obesity that best reflect atherosclerosis.
In 118 inpatients aged ≥75 years with diabetes mellitus, sarcopenia defined as a low skeletal muscle mass and low grip strength was assessed, and sarcopenia coexisting with a high body-fat percentage or visceral fat area was defined as sarcopenic obesity. Correlations between the obesity components and atherosclerotic markers, including the carotid intima-media thickness, were analyzed; the intima-media thickness was analyzed in four groups with and without obesity and sarcopenia, and a multiple linear regression analysis adjusted for covariates was conducted to investigate whether sarcopenic obesity was independently associated with the intima-media thickness.
The visceral fat area and intima-media thickness showed positive correlations in the overall patients (P = 0.032) and the sarcopenia (P = 0.016) group but showed no associations in participants without sarcopenia. The intima-media thickness in the group showing sarcopenia with a high visceral fat area was significantly higher than that in the control group (P = 0.012). Sarcopenic obesity defined by a high body-fat percentage and high visceral fat area was independently associated with the intima-media thickness even after adjusting for age, sex, and atherogenic risk factors. However, sarcopenic obesity defined by a high visceral fat area was more strongly associated with the intima-media thickness (β = 0.384, P = 0.002) than that defined by the high body-fat percentage (β = 0.237, P = 0.068).
Sarcopenic obesity, especially that defined by visceral fat accumulation, reflected the risk of atherosclerotic lesion progression in older patients with diabetes.
目的/引言:本研究旨在探讨糖尿病老年患者的肌肉减少性肥胖与动脉粥样硬化病变进展的关系,并确定肌肉减少性肥胖中反映动脉粥样硬化的最佳肥胖成分。
在 118 名年龄≥75 岁且患有糖尿病的住院患者中,评估了低骨骼肌量和低握力定义的肌肉减少症,并将同时存在高体脂肪百分比或内脏脂肪面积的肌肉减少症定义为肌肉减少性肥胖。分析了肥胖成分与动脉粥样硬化标志物(包括颈动脉内膜中层厚度)之间的相关性;在存在和不存在肥胖和肌肉减少症的四个组中分析了内膜中层厚度,并进行了调整协变量的多元线性回归分析,以探讨肌肉减少性肥胖是否与内膜中层厚度独立相关。
在所有患者(P=0.032)和肌肉减少症患者(P=0.016)中,内脏脂肪面积与内膜中层厚度呈正相关,但在无肌肉减少症患者中无相关性。在表现出高内脏脂肪面积的肌肉减少症组中,内膜中层厚度显著高于对照组(P=0.012)。即使在调整年龄、性别和动脉粥样硬化危险因素后,高体脂肪百分比和高内脏脂肪面积定义的肌肉减少性肥胖仍与内膜中层厚度独立相关。然而,高内脏脂肪面积定义的肌肉减少性肥胖与内膜中层厚度的相关性更强(β=0.384,P=0.002),而高体脂肪百分比定义的肌肉减少性肥胖与内膜中层厚度的相关性较弱(β=0.237,P=0.068)。
肌肉减少性肥胖,特别是由内脏脂肪堆积引起的肥胖,反映了老年糖尿病患者动脉粥样硬化病变进展的风险。