PMID: 18209896Jan 23, 2008Paper

Decreased bone mineral density in pre-menopause women with prolactinoma

Arquivos brasileiros de endocrinologia e metabologia
Isabela BussadeM L F Farias

Abstract

Tumoral hyperprolactinemia and consequent hypogonadism have been associated with osteoporosis. Bone mineral density (BMD) was measured by dual-energy RX absorptiometry in 24 patients with prolactinoma (15 macro and 9 micro adenomas; age range = 18 to 49 years). Student unpaired t or Mann-Whitney tests were used to compare groups, and Spearman test studied correlations. Lumbar spine (LS) was the most affected, as LS Z-score was < -2 SD in 20.83% of the patients. No difference was found in densitometric parameters for the comparison between macro and microprolactinoma, or those with normal prolactin versus hyperprolactinemia. LS BMD and LS Z-score were higher in the patients with > 8 menstrual cycles in the preceding year then in those with oligoamenorrhea (p = 0.030). The number of cycles was correlated to LS BMD (r = 0.515, p = 0.017) and body mass index to femoral neck BMD (r = 0.563, p = 0.006) and total femur BMD (r = 0.529, p = 0.011). Decreased bone mineral density was detected in 20.83% of our young patients with prolactinoma. The great involvement of trabecular bone skeletal regions, such as vertebrae, suggests the participation of hypogonadism in the pathogenesis of bone disease. Irrespective of prolactin levels, return...Continue Reading

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