DObesity: Relationship between vitamin D deficiency, obesity and sclerostin as a novel biomarker of bone metabolism

Aim: To study the relationship between obesity, insulin resistance, vitamin D deficiency and sclerostin as a bone biomarker. Materials and methods: Cross-section study of 75 subjects grouped into 3 groups; obese (n = 31), overweight (n = 23) and normal (n = 21) subjects. Sclerostin, fasting insulin, fasting plasma glucose and 25(OH)D were measured and anthropometric measures were taken. Results: 25(OH)D was lower in obese subjects than overweight and control groups (mean ± SD 5.27 ± 5.14 vs. 12.55 ± 6.99 vs.17.65 ± 4.07 ng/L, p < 0.001). Sclerostin was significantly lower in obese subjects versus the control (mean ± SD 1.02 ± 0.45 vs 1.58 ± 0.83 ng/mL, p = 0.014). Conclusion: These results lead us to hypothesize that the relationship between sclerostin and Vitamin D levels has an important role in the link between obesity and bone metabolism. DObesity could be an active focus of research in the coming years. Keywords: Vitamin D, Obesity, Sclerostin, Bone metabolism, Insulin resistance

Abstract licence: CC BY-NC

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   BMI and fracture risk in older men: The osteoporotic fractures in men study (MrOS) · 2010

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• Association between obesity and risk of fracture, bone mineral density and bone quality in adults: A systematic review and meta-analysis · 2021

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