Indan Journal of Medical Research Indan Journal of Medical Research Indan Journal of Medical Research
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Year : 2010  |  Volume : 132  |  Issue : 6  |  Page : 667-675

A review on peripheral blood CD4+ T lymphocyte counts in healthy adult Indians

National AIDS Research Institute (ICMR), Pune, India

Correspondence Address:
Ramesh Paranjape
Director, National AIDS Research Institute (ICMR), G-73, MIDC, Bhosari, Pune 411 026
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Source of Support: None, Conflict of Interest: None

PMID: 21245613

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The CD4+ T lymphocytes are the crucial cells in the cascade of events in forming immune response to the foreign antigen and hence monitoring the CD4+ T cell counts to understand the extent of immune deficiency is a common practice. CD4+ T cells are also the primary target cells for human immunodeficiency virus (HIV). Hence CD4+ T lymphocyte count is the most important marker of immune dysfunction in HIV disease progression. The estimation of CD4+ T cell counts is used to decide the initiation of anti retroviral therapy (ART), to monitor the efficacy of ART and to start treatment for opportunistic infections (OIs). To develop the threshold levels of CD4+ T cell counts, data from western countries are being used in India. The CD4+ T cell counts are known to be influenced by race and environmental factors. Hence it is important to establish the reference ranges for the CD4+ T cell counts in the target population to understand the immune dysfunction. The information on the lower limits of the CD4+ T cells count is necessary to decide the initiation and monitoring of ART. The published data on the CD4+ T cells count in healthy Indian adult population have been reviewed, analyzed and discussed in this review article. The requirement of establishment of reference ranges in Indian population is discussed.

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