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01-07-2019 | Human Immunodeficiency Virus | Original Article

CD4 T cell count is inversely associated with lumbar spine bone mass in HIV-infected men under the age of 50 years

Authors: M. K. Kwak, E. J. Lee, J. W. Park, S. Y. Park, B. -J. Kim, T. H. Kim, K. Suh, J. -M. Koh, S. H. Lee, D. -W. Byun

Published in: Osteoporosis International | Issue 7/2019

Abstract

Summary

HIV-infected men under the age of 50 years had a lower bone mass compared to that of HIV-uninfected men. Lower CD4 T cell counts, independent of whether antiretroviral therapy (ART) was used, were associated with lower BMD. HIV-infected patients with low CD4 T cell counts may need follow-up and intervention regarding bone health, including younger patients.

Introduction

HIV-infected patients have a low bone mineral density (BMD) owing to multifactorial interaction between common osteoporosis risk factors and HIV-related factors, including chronic inflammation and ART. Although HIV infection and ART might affect bone metabolism, little data is available for patients aged under 50 years. We aimed to investigate the association of HIV infection-induced low CD4 T cell counts and ART with BMD in men aged under 50 years.

Methods

We performed an age- and body mass index–matched case–control study. BMD values of HIV-infected and HIV-uninfected men (< 50 years) were compared, and HIV-infected men were stratified by CD4 T cell counts and ART use.

Results

After adjusting confounders, HIV-infected men with CD4 T cell counts ≥ 500 cells/μL (n = 28) and < 500 cells/μL (n = 139) had lower BMD at the femoral neck (FN, p < 0.001) and total hip (TH, p < 0.001) than HIV-uninfected men (n = 167). HIV-infected men with CD4 T cell counts < 500/μL had lower BMD at the lumbar spine (LS, p = 0.034) than those with counts of ≥ 500 cells/μL, but not at FN and TH. The CD4 T cell count (γ = 0.169, p = 0.031) was positively correlated with BMD at LS. There was no significant difference in the BMD (p = 0.499–> 0.999) between the ART-naïve (n = 75) and ART-user group (n = 92).

Conclusions

Despite their relatively younger age, HIV-infected men had a lower BMD than HIV-uninfected men. Lower CD4 T cell counts, irrespective of ART, might result in lower bone mass.

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Title: CD4 T cell count is inversely associated with lumbar spine bone mass in HIV-infected men under the age of 50 years
Authors: M. K. Kwak
E. J. Lee
J. W. Park
S. Y. Park
B. -J. Kim
T. H. Kim
K. Suh
J. -M. Koh
S. H. Lee
D. -W. Byun
Publication date: 01-07-2019
Publisher: Springer London
Keyword: Human Immunodeficiency Virus
Published in: Osteoporosis International / Issue 7/2019
Print ISSN: 0937-941X
Electronic ISSN: 1433-2965
DOI: https://doi.org/10.1007/s00198-019-04942-7

At a glance: The STEP trials

Springer Medicine

CD4 T cell count is inversely associated with lumbar spine bone mass in HIV-infected men under the age of 50 years

Abstract

Summary

Introduction

Methods

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Summary

Introduction

Methods

Results

Conclusions

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