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HIV-1 and GBV-C co-infection in Venezuela

Anny Karely Rodríguez1, Domingo José Garzaro, Carmen Luisa Loureiro

  • 1Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela. akrodrig@gmail.com.

Journal of Infection in Developing Countries
|July 16, 2014
PubMed

Insights

GB virus C (GBV-C) co-infection is more prevalent in HIV-1 patients in Venezuela. This co-infection impacts viral load and alters the cytokine environment, suggesting a complex role in disease progression.

Area of Science:

  • Virology
  • Immunology
  • Infectious Diseases

Background:

  • Co-infection with GB virus C (GBV-C) and human immunodeficiency virus 1 (HIV-1) is linked to better survival outcomes.
  • Understanding the prevalence and immunological impact of this co-infection in specific populations is crucial.

Purpose of the Study:

  • To determine the prevalence of GBV-C infection in HIV-1-infected individuals in Venezuela.
  • To investigate the effects of GBV-C/HIV-1 co-infection on cytokine profiles.

Main Methods:

  • RT-PCR and sequence analysis were used to detect and genotype GBV-C.
  • HIV-1 strains were characterized by gene sequence analysis.
  • Cytokine levels (TNFα, RANTES) were measured using ELISA.

Main Results:

  • GBV-C RNA was detected in 18.5% of 525 individuals.
  • Prevalence of GBV-C was significantly higher in HIV-1-positive individuals (26%) compared to HIV-1-negative individuals (11%).
  • Co-infection affected viral load and altered TNFα and RANTES levels, with notable differences between mono- and co-infected groups.

Conclusions:

  • The beneficial effect of GBV-C/HIV-1 co-infection on disease progression is complex and may involve modulation of the cytokine environment.
  • Further research is needed to elucidate the intricate interactions between GBV-C and HIV-1.
Abstract

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