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<p>Pentosidine (PEN), a surrogate marker of advanced glycation end-product formation, reflects increased non-enzymatic cross-linking in bone collagen, which is thought to be an important determinant of bone fragility in type 2 diabetes mellitus (T2DM). We aimed to investigate serum concentrations of PEN in patients with T2DM and controls without T2DM and to examine its relationship with bone parameters and metabolic state such as glycaemic control, insulin resistance and body weight. In a cross-sectional study-design, data from postmenopausal women and men with T2DM (<i>n</i> = 110) and controls without T2DM (<i>n</i> = 111) were evaluated. Serum PEN was measured using an ELISA-based assay (CSB-E09415h, Cusabio). In addition, biochemical markers of glucose metabolism and bone turnover markers were measured. Bone mineral density (BMD) was assessed by dual-energy X-ray absorptiometry. After adjustment for age, gender and body mass index (BMI), serum PEN was significantly higher in patients with T2DM compared to controls (<i>p</i> = 0.02) and most prominently in women with T2DM (<i>p</i> = 0.09). We found a strong association of serum PEN concentrations with BMI in the entire study population (<i>R</i> = 0.43, <i>p</i> &lt; 0.001) as well as in patients with T2DM (<i>R</i> = 0.28, <i>p</i> &lt; 0.01). While bone turnover markers were significantly decreased, and BMD increased in patients with T2DM, only weak or no associations were observed between these skeletal surrogate markers and serum PEN. We conclude that serum PEN is strongly associated with BMI with highest levels in obese women with T2DM. Adjustment for patient’s weight is needed when evaluating serum PEN levels in patients with T2DM.</p><p><b>Clinical Trial Information:</b> NCT02551315.</p>

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Serum Pentosidine in Relation to Obesity in Patients with Type 2 Diabetes and Healthy Controls

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年1月7日

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  • Sandra Baumann,
  • Lilian Sewing,
  • Cyril Traechslin,
  • Wilma Verhagen-Kamerbeek,
  • Leticia Grize,
  • Marius Kraenzlin,
  • Christian Meier

摘要

Pentosidine (PEN), a surrogate marker of advanced glycation end-product formation, reflects increased non-enzymatic cross-linking in bone collagen, which is thought to be an important determinant of bone fragility in type 2 diabetes mellitus (T2DM). We aimed to investigate serum concentrations of PEN in patients with T2DM and controls without T2DM and to examine its relationship with bone parameters and metabolic state such as glycaemic control, insulin resistance and body weight. In a cross-sectional study-design, data from postmenopausal women and men with T2DM (n = 110) and controls without T2DM (n = 111) were evaluated. Serum PEN was measured using an ELISA-based assay (CSB-E09415h, Cusabio). In addition, biochemical markers of glucose metabolism and bone turnover markers were measured. Bone mineral density (BMD) was assessed by dual-energy X-ray absorptiometry. After adjustment for age, gender and body mass index (BMI), serum PEN was significantly higher in patients with T2DM compared to controls (p = 0.02) and most prominently in women with T2DM (p = 0.09). We found a strong association of serum PEN concentrations with BMI in the entire study population (R = 0.43, p < 0.001) as well as in patients with T2DM (R = 0.28, p < 0.01). While bone turnover markers were significantly decreased, and BMD increased in patients with T2DM, only weak or no associations were observed between these skeletal surrogate markers and serum PEN. We conclude that serum PEN is strongly associated with BMI with highest levels in obese women with T2DM. Adjustment for patient’s weight is needed when evaluating serum PEN levels in patients with T2DM.

Clinical Trial Information: NCT02551315.