AIDS onset at high CD4+ cell levels is associated with high HIV load

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Updated: Oct 2, 2026

Peptide-based Identification of Functional Motifs and their Binding Partners
14:28

Peptide-based Identification of Functional Motifs and their Binding Partners

Published on: July 1, 2013

K A Hennessey1, J V Giorgi, A H Kaplan

  • 1Los Angeles Center of the Multicenter AIDS Cohort Study, Department of Epidemiology, UCLA School of Public Health, California, USA.

AIDS Research and Human Retroviruses
|February 5, 2000
PubMed

Insights

High HIV viral load and genital herpes predict AIDS development even with high CD4+ cell counts. This indicates elevated Human Immunodeficiency Virus (HIV) precedes CD4+ decline, influencing AIDS risk.

Area of Science:

  • Immunology
  • Virology
  • Epidemiology

Background:

  • Acquired Immunodeficiency Syndrome (AIDS) development is typically associated with low CD4+ T-cell counts.
  • Factors influencing AIDS progression at higher CD4+ cell levels require further investigation.

Purpose of the Study:

  • To identify predictors of AIDS development in Human Immunodeficiency Virus type 1 (HIV-1) infected individuals with CD4+ cell counts ≥300/mm³.
  • To explore the relationship between viral load, specific infections, and clinical outcomes in this cohort.

Main Methods:

  • A nested case-control study design was employed using data from the Multicenter AIDS Cohort Study (MACS).
  • HIV-1-infected men who developed AIDS with CD4+ ≥300/mm³ (cases) were compared to similar men who remained AIDS-free for ≥2 years (controls).
  • Plasma HIV-1 RNA levels, neopterin levels, and history of genital herpes were analyzed.

Main Results:

  • Cases exhibited significantly higher mean plasma HIV-1 RNA levels (10^5.02 vs. 10^4.42, p<0.01) and neopterin levels (18.3 vs. 11.5 units/ml, p<0.05) compared to controls.
  • A higher proportion of cases reported genital herpes in the year preceding diagnosis (21.9% vs. 4.4%, p<0.05).
  • Elevated viral load preceded AIDS diagnosis in cases who developed AIDS within 6 months.

Conclusions:

  • Higher plasma HIV-1 RNA levels and genital herpes infection are associated with AIDS development, even at relatively high CD4+ cell counts.
  • Elevated HIV viral load appears to be a primary factor in AIDS risk, potentially preceding CD4+ T-cell count decline.
  • These findings support the hypothesis that high viral replication is a critical determinant of AIDS progression.

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