检验医学 ›› 2026, Vol. 41 ›› Issue (7): 664-669.DOI: 10.3969/j.issn.1673-8640.2026.07.008

• 论著 • 上一篇    下一篇

血清25-羟基维生素D、肌酐/胱抑素C比值与老年2型糖尿病并发肌少症的关系

蒋永利1, 李爱华2, 盛成兰3()   

  1. 1 上海市浦东新区老年医院检验科上海 201314
    2 上海市浦东新区老年医院内分泌科上海 201314
    3 上海市第十人民医院崇明分院检验科上海 202157
  • 收稿日期:2025-07-15 修回日期:2026-03-12 出版日期:2026-07-30 发布日期:2026-07-23
  • 通讯作者: 盛成兰,E-mail:18017439179@163.com
  • 作者简介:蒋永利,男,1982年生,学士,主管技师,主要从事临床生化和免疫检验工作;
    李爱华,女,1974年生,副主任医师,主要从事老年内分泌相关疾病的诊治工作。蒋永利和李爱华对本研究具有同等贡献,并列为第一作者。

Relationship between serum 25-hydroxyvitamin D,creatinine/cystatin C ratio and sarcopenia in elderly patients with type 2 diabetes mellitus

JIANG Yongli1, LI Aihua2, SHENG Chenglan3()   

  1. 1 Department of Clinical LaboratoryPudong New Area Geriatric HospitalShanghai 201314, China
    2 Department of EndocrinologyPudong New Area Geriatric HospitalShanghai 201314, China
    3 Department of Clinical LaboratoryChongming Branch,Shanghai Tenth People's HospitalShanghai 202157, China
  • Received:2025-07-15 Revised:2026-03-12 Online:2026-07-30 Published:2026-07-23

摘要:

目的 探讨血清25-羟基维生素D[25(OH)D]和肌酐(Cr)/胱抑素C(Cys C)比值在老年2型糖尿病(T2DM)并发肌少症中的临床价值。方法 选取2024年1—12月上海市浦东新区老年医院老年T2DM患者202例,根据是否发生肌少症分为肌少症组(50例)和非肌少症组(152例)。收集所有患者的临床资料,并检测空腹血糖、糖化血红蛋白(HbA1c)、胰岛素、血脂、Cr、25(OH)D、Cys C。计算Cr/Cys C比值、胰岛素抵抗指数(HOMA-IR)和估算肾小球滤过率(eGFR)。采用Logistic回归分析评估老年T2DM患者发生肌少症的影响因素。采用双变量Pearson相关分析评估25(OH)D、Cr/Cys C比值与HOMA-IR、eGFR的相关性。采用受试者工作特征(ROC)曲线评价各项指标判断老年T2DM患者发生肌少症的效能。结果 肌少症组T2DM病程、HbA1c、HOMA-IR高于非肌少症组(P<0.05),血清25(OH)D、Cr/Cys C比值、eGFR低于非肌少症组(P<0.05)。2个组之间其他临床资料差异均无统计学意义(P>0.05)。校正混杂因素(降糖药物类型、HOMA-IR、eGFR)后,T2DM病程长、HbA1c升高和25(OH)D、Cr/Cys C比值降低均是老年T2DM患者发生肌少症的危险因素(P<0.05)。血清25(OH)D、Cr/Cys C比值与HOMA-IR均呈负相关(r值分别为-0.198、-0.203,P<0.01),与eGFR均呈正相关(r值分别为0.196、0.185,P<0.01)。基于T2DM病程、HbA1c、25(OH)D和Cr/Cys C比值构建联合检测模型,血清25(OH)D、Cr/Cys C比值和联合检测模型判断老年T2DM患者发生肌少症的曲线下面积(AUC)分别为0.704、0.735、0.841。结论 血清25(OH)D、Cr/Cys C比值降低与老年T2DM患者并发肌少症有关,2个指标或可作为老年T2DM患者发生肌少症的筛查指标。

关键词: 25-羟基维生素D, 胱抑素C, 肌酐, 2型糖尿病, 肌少症, 老年人群

Abstract:

Objective To investigate the clinical value of serum 25-hydroxyvitamin D [25(OH)D] and the ratio of creatinine(Cr)/cystatin C(Cys C)in elderly type 2 diabetes mellitus(T2DM)patients with sarcopenia. Methods A total of 202 elderly T2DM patients from Pudong New Area Geriatric Hospital from January to December 2024 were enrolled. All the patients were classified into sarcopenia group(50 cases)and non-sarcopenia group(152 cases). The clinical data were collected,and fasting blood glucose,glycated hemoglobin A1c(HbA1c),insulin,blood lipids,Cr,25(OH)D and Cys C were determined. The Cr/Cys C ratio,homeostasis model assessment of insulin resistance(HOMA-IR)and estimated glomerular filtration rate(eGFR)were calculated. Logistic regression analysis was used to evaluate the influencing factors of sarcopenia in elderly T2DM patients. The correlations of 25(OH)D,Cr/Cys C ratio and HOMA-IR,eGFR were evaluated by bivariate Pearson correlation analysis. Receiver operating characteristic(ROC)curve was used to evaluate the efficacy of each indicator in diagnosing sarcopenia in elderly T2DM patients. Results The disease duration of T2DM,HbA1c and HOMA-IR in sarcopenia group were higher than those in non-sarcopenia group(P<0.05),while serum 25(OH)D,Cr/Cys C ratio and eGFR were lower than those in non-sarcopenia group(P<0.05). There was no statistical significance in the other data between the 2 groups(P>0.05). After adjusting for confounding factors(types of hypoglycemic drugs,HOMA-IR,eGFR),long disease duration of T2DM,elevated HbA1c and decreased 25(OH)D and Cr/Cys C ratio were all risk factors for sarcopenia in elderly T2DM patients(P<0.05). Serum 25(OH)D,Cr/Cys C ratio were negatively correlated with HOMA-IR(r values were -0.198 and -0.203,P<0.01),and they were positively correlated with eGFR (r values were 0.196 and 0.185,P<0.01). The combined determination model was established based on T2DM disease duration,HbA1c,25(OH)D and Cr/Cys C ratio. The areas under curves(AUC)of serum 25(OH)D, Cr/Cys C ratio and the combined determination model for the diagnosis of sarcopenia in elderly T2DM patients were 0.704,0.735 and 0.841,respectively. Conclusions Decreased serum 25(OH)D and Cr/Cys C ratio are correlated with sarcopenia in elderly T2DM patients,and they may be screening indicators for sarcopenia in elderly T2DM patients.

Key words: 25-Hydroxyvitamin D, Cystatin C, Creatinine, Type 2 diabetes mellitus, Sarcopenia, Elder

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