Pak J Biol Sci. 2020 Jan;23(10):1237-1244. doi: 10.3923/pjbs.2020.1237.1244.
BACKGROUND AND OBJECTIVE: Visceral Adipose Tissue (VAT) which is associated with a higher risk of Metabolic Syndrome (MS) shows adverse effects on bone health. Moreover, MS is associated with high concentrations of serum estradiol (E2), which is essential for bone, as it inhibits bone resorption. This study aimed to investigate the impact of visceral fat and serum E2 levels on bone health markers (vitamin D, C-terminal peptide, Ca and BMD) in obese women with and without MS. MATERIALS AND METHODS: This cross-sectional study was conducted on 64 obese women, with and without MS. Waist Circumference (WC) was measured in cm. Bone Mineral Density (BMD) was assessed by energy X-ray absorptiometry (DEXA), VAT was evaluated using Body Composition Analyzer "Tanita". Serum E2, C-terminal peptide and vitamin D (Vit. D) were assessed using ELISA technique. Serum calcium (Ca), triglyceride (TG), total cholesterol (Tchol), High Density Lipoproteins (HDL), Low Density Lipoproteins (LDL) and Fasting Blood Sugar (FBS) were also assessed. RESULTS: In women with MS, VAT showed significant positive correlations with Body Mass Index (BMI), WC and FBS. Whereas, in women without MS, VAT showed significant positive correlations with BMI, TG, age and significant negative correlation with E2. On the other hand, in women with MS, estradiol (E2) had significant negative correlation with age and significant positive correlations with BMD, BMI, FBS and body weight. While, in obese women without MS, it had significant negative correlations with Ca, VAT, age and systolic blood pressure. CONCLUSION: In obese women with MS, increased VAT, higher BMI, older age and low E2 levels have clinical significance and hence, they should be considered when predicting bone health risk.
背景与目的:内脏脂肪组织(VAT)与代谢综合征(MS)的风险增加有关,对骨骼健康有不良影响。此外,MS 与血清雌二醇(E2)浓度升高有关,E2 是骨骼所必需的,因为它能抑制骨吸收。本研究旨在探讨肥胖女性中内脏脂肪和血清 E2 水平对 MS 患者和非 MS 患者的骨健康标志物(维生素 D、C 端肽、Ca 和 BMD)的影响。
材料与方法:这是一项横断面研究,共纳入 64 名肥胖女性,分为 MS 组和非 MS 组。以厘米为单位测量腰围(WC)。采用能量 X 射线吸收仪(DEXA)评估骨密度(BMD),采用 Tanita 体成分分析仪评估内脏脂肪(VAT)。采用 ELISA 技术检测血清 E2、C 端肽和维生素 D(Vit.D)。同时检测血清钙(Ca)、甘油三酯(TG)、总胆固醇(Tchol)、高密度脂蛋白(HDL)、低密度脂蛋白(LDL)和空腹血糖(FBS)。
结果:在 MS 组女性中,VAT 与 BMI、WC 和 FBS 呈显著正相关。而非 MS 组女性中,VAT 与 BMI、TG、年龄呈显著正相关,与 E2 呈显著负相关。另一方面,在 MS 组女性中,E2 与年龄呈显著负相关,与 BMD、BMI、FBS 和体重呈显著正相关。而非 MS 组肥胖女性中,E2 与 Ca、VAT、年龄和收缩压呈显著负相关。
结论:在 MS 肥胖女性中,VAT 增加、BMI 较高、年龄较大、E2 水平较低具有临床意义,因此在预测骨健康风险时应予以考虑。
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