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Osteoporosis International

, Volume 28, Issue 9, pp 2645–2652 | Cite as

Association of adiposity indices with bone density and bone turnover in the Chinese population

  • J. Wang
  • D. Yan
  • X. Hou
  • P. Chen
  • Q. Sun
  • Y. Bao
  • C. HuEmail author
  • Z. ZhangEmail author
  • W. Jia
Original Article

Abstract

Summary

Associations of adiposity indices with bone mineral density (BMD) and bone turnover markers were evaluated in Chinese participants. Body mass index, fat mass, and lean mass are positively related to BMD in both genders. Subcutaneous fat area was proved to be negatively associated with BMD and positively correlated with osteocalcin in postmenopausal females.

Introduction

Obesity is highly associated with osteoporosis, but the effect of adipose tissue on bone is contradictory. Our study aimed to assess the associations of adiposity indices with bone mineral density (BMD) and bone turnover markers (BTMs) in the Chinese population.

Methods

Our study recruited 5215 participants from the Shanghai area, evaluated related anthropometric and biochemical traits in all participants, tested serum BTMs, calculated fat distribution using magnetic resonance imaging (MRI) images and image analysis software, and tested BMD with dual-energy X-ray absorptiometry.

Results

When controlled for age, all adiposity indices were positively correlated with BMD of all sites for both genders. As for the stepwise regression analysis, body mass index (BMI), fat mass, and lean mass were protective for BMD in both genders. However, subcutaneous fat area (SFA) was detrimental for BMD of the L1–4 and femoral neck (β ± SE −0.0742 ± 0.0174; p = 2.11E−05; β ± SE −0.0612 ± 0.0147; p = 3.07E−05). Adiposity indices showed a negative correlation with BTMs adjusting for age, especially with osteocalcin. In the stepwise regression analysis, fat mass was negatively correlated with osteocalcin (β ± SE −8.8712 ± 1.4902; p = 4.17E−09) and lean mass showed a negative correlation with N-terminal procollagen of type I collagen (PINP) for males (β ± SE −0.3169 ± 0.0917; p = 0.0006). In females, BMI and visceral fat area (VFA) were all negatively associated with osteocalcin (β ± SE −0.4423 ± 0.0663; p = 2.85E−11; β ± SE −7.1982 ± 1.1094; p = 9.95E−11), while SFA showed a positive correlation with osteocalcin (β ± SE: 5.5993 ± 1.1753; p = 1.98E−06).

Conclusion

BMI, fat mass, and lean mass are proved to be beneficial for BMD in both males and postmenopausal females. SFA is negatively associated with BMD and positively correlated with osteocalcin in postmenopausal females.

Keywords

Adiposity indices Bone mineral density Bone turnover markers Osteoporosis 

Notes

Acknowledgments

This work was supported by grants from the National 863 Program (2015AA020110), National Key Research and Development Project (2016YFC1304902), Drug Innovation Program of the National Science and Technology Project (2011ZX09307-001-02), Shanghai Young Doctor Training and Funding Program, Shanghai Jiao Tong Medical/Engineering Foundation (YG2014MS18), Shanghai Municipal Education Commission–Gaofeng Clinical Medicine Grant Support (20152527), National Program for Support of Top-notch Young Professional, Shanghai Health and Family Planning Commission (2013ZYJB1001), Innovation Foundation of Translational Medicine of Shanghai Jiao Tong University School of Medicine (15ZH4006), Shanghai SJTUSM Biobank, and Shanghai Hospital Development Center (SHDC12013115). We acknowledge the assistance of the nursing and medical staff at the Shanghai Clinical Center for Diabetes. We gratefully appreciate all of the participants in this research.

Compliance with ethical standards

Conflict of interest

None.

Supplementary material

198_2017_4081_MOESM1_ESM.doc (85 kb)
ESM 1 (DOC 85 kb)

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Copyright information

© International Osteoporosis Foundation and National Osteoporosis Foundation 2017

Authors and Affiliations

  1. 1.Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for DiabetesShanghai Jiao Tong University Affiliated Sixth People’s HospitalShanghaiChina
  2. 2.Department of Osteoporosis, Metabolic Bone Disease and Genetic Research UnitShanghai Jiao Tong University Affiliated Sixth People’s HospitalShanghaiChina
  3. 3.Shanghai Jiao Tong University Affiliated Sixth People’s HospitalShanghaiChina

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