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Factors associated with low bone mineral density in a Brazilian cohort of vertically HIV-infected adolescents.
MedLine Citation:
PMID:  23031418     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: To assess the prevalence and factors associated with low bone mineral density (BMD) in HIV-infected adolescents. METHODS: This was a cross-sectional study of a Brazilian cohort of vertically HIV-infected adolescents. Body composition and lumbar spine (LS) and total body (TB) BMD were estimated by dual-energy X-ray absorptiometry (DXA). Low BMD was considered for a Z-score ≤-2 standard deviations. Pubertal development, anthropometric data, laboratory measurements, antiretroviral regimen, and time of immunological and virological recovery were evaluated as factors associated with a low BMD. RESULTS: Seventy-four adolescents aged 17.3±1.8 years were studied. Low BMD was present in 32.4% of them. LS and TB BMD Z-scores were positively correlated with weight, body mass index (BMI), BMI Z-score, total body fat, and nutritional status. Patients on tenofovir had lower LS and TB BMD Z-scores. Time on tenofovir was indirectly correlated with LS and TB BMD Z-scores. No difference was found regarding levels of calcium, parathyroid hormone, or 25-hydroxyvitamin D according to BMD status. CONCLUSIONS: Control of the HIV infection, especially before the initiation of puberty, might have a positive influence on bone gain. Body composition and nutritional status had a positive influence on BMD that was more evident in females, suggesting that nutritional intervention may have a positive impact on BMD.
Authors:
Annie Schtscherbyna; Maria Fernanda Miguens Castelar Pinheiro; Laura Maria Carvalho de Mendonça; Carla Gouveia; Ronir Raggio Luiz; Elizabeth Stankiewicz Machado; Maria Lucia Fleiuss de Farias
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-29
Journal Detail:
Title:  International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases     Volume:  -     ISSN:  1878-3511     ISO Abbreviation:  Int. J. Infect. Dis.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-10-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9610933     Medline TA:  Int J Infect Dis     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Ltd.
Affiliation:
Department of Endocrinology, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Alegre, 289/ 203 Jardim Guanabara, Rio de Janeiro, 21931-260 Brazil. Electronic address: anniebyna@yahoo.com.br.
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