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Abstract
Background: The prevalence of osteopenia and osteoporosis is increased in human immunodeficiency virus (HIV)-infected patients. The pathogenesis of this low bone mineral density (BMD) is multifactorial. Methods: We conducted a prospective study over a 2-year period of the BMD in non-treated ARV-naïve HIV-infected-males, in comparison to HIV-infected males commencing a first ARV treatment, and analyzed the evolution of bone turnover markers. Results: A total of 39 caucasian males (median age 38.6 years) were enrolled, including 10 who started ARV treatment (group 1), and 29 without indications for ARV therapy (group 2). In the latter group, 11 subjects commenced ARV during the study; therefore the remainder of their follow-up was within group 1, which finally consisted of 21 patients. At baseline, 9 patients (19.5%) had osteoporosis at least at 1 site, while 28 (61%) showed osteopenia. Lower BMD was correlated with tobacco use. Lumbar spine and total hip BMD significantly decreased in group 1 patients after 6 months of treatment, then stabilized (2.4% and 4% loss, respectively, at 24 months), while no significant change in BMD was observed in group 2 subjects. At baseline, one patient had an increased CTX (C-terminal cross-linking telopeptide of type 1 collagen) and all BSAP (bone-specific alkaline phosphatase) results were normal. During follow-up, both CTX and BSAP increased in group 1 patients, while they did not change in group 2. Conclusion: Osteoporosis and osteopenia are frequent in HIV-infected males. After ARV initiation, BMD decreased, and bone turnover markers increased, even though the BMD remained stable in non-treated patients. These results underline the impact of HIV treatment on BMD and bone metabolism.
Declaration of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.