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  • Title: Low density lipoprotein-cholesterol levels affect vertebral fracture risk in female patients with primary hyperparathyroidism.
    Author: Kaji H, Hisa I, Inoue Y, Sugimoto T.
    Journal: Exp Clin Endocrinol Diabetes; 2010 Jun; 118(6):371-6. PubMed ID: 19609845.
    Abstract:
    Although increased arterial sclerosis and dyslipidemia were observed in primary hyperparathyroidism (pHPT) patients in previous studies, it still remains unclear about the relationships between lipid and bone metabolism in pHPT patients, especially about fracture risk. The present study was performed to examine the relationships between lipid metabolism parameters including body composition and bone metabolism in 116 female patients with pHPT and 116 age-matched control subjects. Bone mineral density (BMD) and body composition were measured by dual-energy x-ray absorptiometry. Serum low density lipoprotein (LDL)-cholesterol (Chol) levels were negatively related to only z-score of BMD at femoral neck and serum creatinine levels. Serum levels of LDL-Chol were significantly lower in the group with vertebral fractures in pHPT patients, although body composition parameters were not significantly different. In univariate logistic regression analyses, age, height, BMD at lumbar spine and radius, serum levels of creatinine, total-Chol and LDL-Chol were significantly selected as a predictor of vertebral fractures. LDL-Chol was related to vertebral fractures independently of the other parameters. In conclusion, the present study demonstrated that lower serum LDL-Chol levels were related to vertebral fracture risk independent of renal function, age, body size, bone metabolism parameters and the severity of the disease in pHPT women.
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