alexa Sub-Optimal CD4 T-Lymphocyte Responses among HIV Infected Patients who Develop TB during the First Year of ART | OMICS International | Abstract
ISSN 2155-6113

Journal of AIDS & Clinical Research
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Research Article

Sub-Optimal CD4 T-Lymphocyte Responses among HIV Infected Patients who Develop TB during the First Year of ART

Ingrid Eshun-Wilson1,2*, Jantjie J Taljaard3 and Jean B Nachega1,4

1Centre for Infectious Diseases, Stellenbosch University, Parow, 7505, Cape Town South Africa

2Department of Epidemiology and Biostatistics, University of San Francisco, California, 41097, USA

3Centre for Infectious Diseases and Division of Internal Medicine, Stellenbosch University, Parow, 7505, Cape Town South Africa

4John Hopkins School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA

*Corresponding Author:
Ingrid Eshun-Wilson
Centre for Infectious Diseases
Stellenbosch University, Parow
7505, Cape Town, South Africa
Tel: +1 4159871439
E-mail: [email protected]

Received Date: September 06, 2011; Accepted Date: January 25, 2012; Published Date: January 29, 2012

Citation: Eshun-Wilson I, Taljaard JJ, Nachega JB (2012) Sub-Optimal CD4 T-Lym-phocyte Responses among HIV Infected Patients who Develop TB during the First Year of ART. J AIDS Clinic Res 3:135. doi:10.4172/2155-6113.1000135

Copyright: © 2012 Eshun-Wilson I, 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.


Study background:Poor CD4 T-lymphocyte responses to anti-retroviral treatment (ART) are associated with increased HIV disease progression and mortality. In sub-Saharan Africa a substantial proportion of HIV infected patients are co-infected with TB. This study evaluated the effect of active TB presenting after ART initiation on immunological responses to ART.

Methods: A retrospective cohort study was conducted of patients initiated on ART in a South African academic hospital between 1 January 2004 and 15 May 2008. Changes in CD4 T-lymphocyte count, virological suppression and incident TB episodes occurring in the fi rst year of ART were assessed. Sub-optimal CD4 responses were defi ned as ‘failure to increase CD4 T-lymphocyte count by 50cells/μl at 6 month on ART’.

Results:The cohort for analysis included 691 patients. 141 (20.4%) had sub-optimal CD4 responses at 6 months on ART. 49 patients (7.1%) developed incident TB within the fi rst 12 months of ART. After adjustment for age, sex, baseline CD4 count and detectable viral load, patients with incident TB were found to have a 2.20 times greater odds of a sub-optimal CD4 response at 6 month of ART as compared to those who were TB free (95%CI: 1.14-4.23).

Conclusion:Incident TB was associated with a poor CD4 response during early ART in this cohort. Although the direction of causality cannot be determined from these data, these fi ndings provide additional support for the initiation of ART at higher CD4 counts.

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