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01.12.2015 | Research article | Ausgabe 1/2015 Open Access

BMC Endocrine Disorders 1/2015

Association of osteoprotegerin with impaired glucose regulation and microalbuminuria: the REACTION study

Zeitschrift:
BMC Endocrine Disorders > Ausgabe 1/2015
Autoren:
Yixin Niu, Zhen Yang, Xiaoyong Li, Weiwei Zhang, Shuai Lu, Hongmei Zhang, Xueru Chen, Lingfei Zhu, Yin Xing, Guang Ning, Li Qin, Qing Su
Wichtige Hinweise
Yixin Niu and Zhen Yang contributed equally to this work.

Competing interest

The authors declared that there is no duality of interest associated with this manuscript.

Authors’ contributions

Conceived and designed the experiments: LQ, QS. Performed the experiments: ZY, YN, XL. Analyzed the data: ZY. Contributed reagents/materials/analysis tools: WZ, SL, HZ, LZ, YX, GN. Wrote the paper: ZY, YN. All authors read and approved the final manuscript.

Abstract

Background

High osteoprotegerin (OPG) has been reported in association with insulin resistance and type 2 diabetes. We aimed to evaluate the association of serum OPG with impaired glucose regulation (IGR) and microalbuminuria among middle-aged and older Chinese.

Methods

Serum OPG was measured in 599 individuals with normal glucose regulation, 730 with impaired glucose regulation and 327 newly diagnosed patients with diabetes. Serum OPG was measured using ELISA methods and urine albumin/creatinine ratio was used to determine the urinary albumin excretion.

Results

Serum OPG levels were significantly higher in subjects with isolated impaired fasting glucose, isolated impaired glucose tolerance, combined impaired fasting glucose/impaired glucose tolerance and diabetes than in those with normal glucose regulation, whereas serum OPG levels were not different in the four groups with dysregulation of glucose metabolism. OPG was associated with a higher risk for IGR (OR 1.108 for each 0.1 μg/l increase in OPG, 95 % CI 1.009–1.117, p = 0.01) after adjustment for gender, age, BMI, current smoking and alcohol intake, family history of diabetes, homeostasis model assessment of insulin resistance (HOMA-IR), lipid profile; the corresponding OR of combined impaired glucose regulation and type 2 diabetes was 1.121 (95 % CI 1.101–1.141, p = 0.0005). OPG was associated with the risk of microalbuminuria (OR 1.025, 95 % CI 1.006–1.044, p = 0.02) after adjustment for gender, age, current smoking, current alcohol intake, family history of diabetes, BMI, waist/hip ratio, HOMA-IR, eGFR and lipid profile.

Conclusions

Serum OPG level is closely and independently associated with IGR and is an independent risk factor for microalbuminuria.
Literatur
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