Diabetes Metab J > Volume 33(5); 2009 > Article
Korean Diabetes Journal 2009;33(5):421-431.
DOI: https://doi.org/10.4093/kdj.2009.33.5.421    Published online October 1, 2009.
Leptin is Negatively Associated with Femoral Bone Mineral Density in Postmenopausal Women with Type 2 Diabetes Mellitus.
Jae Han Jeon, Yeun Kyung Choi, Hyun Ae Seo, Jung Eun Lee, Ji Yun Jeong, Seong Su Moon, Ju Young Lee, Jung Guk Kim, Bo Wan Kim, In Kyu Lee
1Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea. leei@knu.ac.kr
2Department of Internal Medicine, Soon Chun Hyang University Gumi Hospital, Gumi, Korea.
3WCU Project "Development for New Drug-target in Complication of Metabolic Syndrome", Kyungpook National University School of Medicine, Daegu, Korea.
4Research Institute of Aging and Metabolism, Kyungpook National University, Daegu, Korea.
Abstract
BACKGROUND
Serum leptin level and bone mineral density (BMD) are widely assumed to be positively associated with body fat mass. Numerous attempts have been made to document the relationship between leptin and BMD, but the results are inconsistent, especially in diabetic patients. METHODS: A total of 60 Korean postmenopausal women with type 2 diabetes mellitus were included in the present study. The BMDs of lumbar spines (L1 to L4) and proximal femurs (trochanter, neck, and total) were measured by dual-energy X-ray absorptiometry (DXA), and biochemical markers including leptin, HbA1c, C-peptide and urine albumin-creatinine ratio (ACR) were measured for each patient. RESULTS: Negative associations between leptin and BMD of femoral neck, trochanter, and total femur in postmenopausal women with type 2 diabetes mellitus were documented in a model adjusted for age, body fat mass, and fasting insulin level (r = -0.308, P = 0.020 and r = - 0.303, P = 0.025 and r = - 0.290, P = 0.032 respectively). Multiple linear regression analysis was performed revealing negative associations between leptin and BMD of the femoral neck (beta = -0.369), trochanter (beta = -0.324), and total femur (beta = -0.317). CONCLUSION: The results of the present study suggest a negative relationship between leptin and femoral BMD. In addition, leptin may have a negative effect on BMD in postmenopausal women with type 2 diabetes mellitus.
Key Words: Bone density, Leptin, Type 2 diabetes mellitus


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