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Type: Journal article
Title: HLA alleles association with changes in bone mineral density in HIV-1-infected adults changing treatment to Tenofovir-Emtricitabine or Abacavir-Lamivudine
Author: Haskelberg, H.
Cordery, D.
Amin, J.
Kelleher, A.
Cooper, D.
Emery, S.
Citation: PLoS One, 2014; 9(3):e93333-1-e93333-7
Publisher: Public Library of Science (PLoS)
Issue Date: 2014
ISSN: 1932-6203
Editor: Winston, A.
Statement of
Hila Haskelberg, Damien V. Cordery, Janaki Amin, Anthony D. Kelleher, David A. Cooper, Sean Emery, on behalf of the STEAL Study Group
Abstract: Background: There are limited data regarding the influence of human leukocyte antigen (HLA) polymorphisms on reduced bone mineral density (BMD). We investigated the relationship between HLA supertypes and BMD in HIV-infected adults changing their existing treatment to tenofovir-emtricitabine (TDF-FTC) or abacavir-lamivudine (ABC-3TC) in the STEAL study. Methods: Lumbar spine and right hip BMD were measured by Dual-energy X-ray absorptiometry (DXA). HLA genotypes at the 2-digit level were classified into class I and II supertypes. Student’s t-tests were used to test the association between HLA supertypes and changes in hip and spine BMD over 96 weeks for the whole cohort and stratified by randomised groups. The relationship between HLA supertypes and BMD was also assessed in the subgroup of participants that were naı¨ve to both ABC and TDF at study entry. Results: Class II supertypes were mainly associated with hip BMD change. Overall, compared to participants not carrying HLA-DQ3, participants expressing DQ3 had less bone loss over 96 weeks at both the hip and spine (hip: 0.003 vs. –0.006 g/ cm², 95%CI 0.002 to 0.017, p = 0.016; spine: 0.006 vs. –0.006 g/cm², 95%CI 0.001 to 0.023, p = 0.041). In participants that were naïve to both ABC and TDF at baseline and randomised to TDF-FTC, DQ3 was significantly associated with less bone loss compared with those not carrying DQ3 (hip: 0.001 vs. –0.032 g/cm²; diff 0.033; 95%CI 0.017 to 0.049; p,0.001; spine: 0.007 vs. –0.023 g/cm²; diff 0.035; 95%CI 0.014 to 0.056; p = 0.001).
Keywords: STEAL Study Group
HIV Infections
HLA-DQ Antigens
Drug Combinations
Anti-HIV Agents
Antiretroviral Therapy, Highly Active
Bone Density
Middle Aged
Rights: © 2014 Haskelberg et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
DOI: 10.1371/journal.pone.0093333
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