title: Serum osteocalcin levels are inversely associated with the presence of nonalcoholic fatty liver disease in patients with coronary artery disease.
abstract: Osteocalcin plays roles in energy, glucose, and lipid metabolism. Consequently, the relationship between osteocalcin level and nonalcoholic fatty liver disease (NAFLD) is of interest. The present study explored the possible correlation between serum osteocalcin levels and NAFLD in patients with CAD. The study enrolled 174 inpatients diagnosed with CAD by coronary angiography (CAG). The presence of fatty liver disease was confirmed by abdominal ultrasonography. NAFLD was diagnosed using the working definition of the revised guidelines for the management of NAFLD published by the Chinese Liver Disease Association. Serum osteocalcin levels were determined using electrochemiluminescent immunoassays. Patients with NAFLD had lower serum osteocalcin levels than those without NAFLD [16.2 (14.2-23.8) vs. 20.7 (15.6-26.2) ng/mL, P<0.05]. After adjustment for gender and age, serum osteocalcin levels correlated with the presence of NAFLD (r=-0.260, P=0.010), fasting plasma glucose level (r=-0.230, P=0.023) and glycated hemoglobin A1c level (r=-0.229, P=0.023). Osteocalcin was an independent factor for the presence of NAFLD (β=-0.097, P=0.025). These data suggested that serum osteocalcin levels were negatively associated with the presence of NAFLD in patients with CAD.
authors.affiliation: Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute Shanghai 200233, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Du
authors.affiliation: Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute Shanghai 200233, China.
authors.forename: Xiaoping
authors.initials: X
authors.lastname: Pan
authors.affiliation: Department of Cardiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai 200233, China.
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Lu
authors.affiliation: Department of Cardiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai 200233, China.
authors.forename: Meifang
authors.initials: M
authors.lastname: Gao
authors.affiliation: Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute Shanghai 200233, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Hu
authors.affiliation: Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute Shanghai 200233, China.
authors.forename: Xueli
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute Shanghai 200233, China.
authors.forename: Yuqian
authors.initials: Y
authors.lastname: Bao
authors.affiliation: Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Diabetes Institute Shanghai 200233, China.
authors.forename: Weiping
authors.initials: W
authors.lastname: Jia
keywords: Osteocalcin; coronary artery disease; nonalcoholic fatty liver disease