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  • Title: Lower circulating preptin levels in male patients with osteoporosis are correlated with bone mineral density and bone formation.
    Author: Li N, Zheng YB, Han J, Liang W, Wang JY, Zhou JR, Shen Y, Zhang J.
    Journal: BMC Musculoskelet Disord; 2013 Jan 31; 14():49. PubMed ID: 23363476.
    Abstract:
    BACKGROUND: Serum preptin levels among subjects with different bone mineral densities (BMD) were measured and investigated to determine the correlation between BMD and bone-metabolic markers. METHODS: Approximately 52 elderly male patients with osteoporosis, 50 elderly men with osteopaenia, and 31 age-matched normal bone mass controls participated in the study. The serum preptin levels and bone metabolic markers were measured by enzyme-linked immunosorbent assay. The relationships between preptin levels, BMD, and metabolic parameters were also assessed. RESULTS: The serum preptin level was the lowest in the osteoporosis group and positively correlated with BMD. All the bone formation markers in the osteoporosis and osteopaenia groups were significantly reduced compared with those in the normal group. Serum preptin level was positively correlated with all the bone formation markers, whereas no correlation was observed with the bone resorption marker TRACP-5b. CONCLUSIONS: Serum preptin levels are decreased in osteoporosis and osteopaenia patients and positively correlated with BMD. Therefore, preptin is involved in the pathogenesis of osteoporosis, probably through bone formation rather than bone resorption.
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