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Eur J Endocrinol. 2009 Nov;161(5):723-9. doi: 10.1530/EJE-09-0585. Epub 2009 Aug 11.

Serum osteocalcin concentrations in relation to glucose and lipid metabolism in Chinese individuals.

Author information

1
Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, People's Republic of China.

Abstract

OBJECTIVES:

Osteocalcin, a bone-derived protein, has recently been reported to affect energy metabolism. We investigated the relationship between serum osteocalcin and parameters of adiposity, glucose tolerance, and lipid profile in Chinese subjects.

METHODS:

Serum osteocalcin was measured by electrochemiluminescence immunoassay in 254 men (128 with newly diagnosed type 2 diabetes mellitus (T2DM) and 126 with normal glucose tolerance (NGT)), 66 premenopausal women (33 with T2DM and 33 with NGT) as well as 180 postmenopausal women (92 with T2DM and 88 with NGT). Their associations with parameters of adiposity, glucose tolerance, and lipid profile were examined.

RESULTS:

Serum osteocalcin concentrations in diabetic patients were significantly lower than those in NGT subjects after adjusted for age, gender, and body mass index (P=0.003). Postmenopausal women had higher osteocalcin concentrations than premenopausal women and men (both P<0.001). Multiple stepwise regression analysis showed that age, %fat, high-density lipoprotein cholesterol, fasting plasma glucose, and fasting serum insulin were independently associated with osteocalcin in men (P<0.05). Age and HbA1c were independently correlated with osteocalcin in postmenopausal women. Besides age and HbA1c, serum triglyceride was also an independent factor influencing osteocalcin in premenopausal women. In addition, osteocalcin was also positively associated with homeostasis model assessment of beta-cell function. Furthermore, multiple logistic regression analysis demonstrated that osteocalcin was independently associated with T2DM.

CONCLUSIONS:

Serum osteocalcin was closely associated with not only fat and glucose metabolism but also with lipid metabolism.

PMID:
19671707
DOI:
10.1530/EJE-09-0585
[Indexed for MEDLINE]

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