Abstract
GB virus C (GBV-C) is a lymphotropic virus with a low level or non-existent replication in the liver. The interaction between HIV-1 and GBV-C apparently reduces the progression of HIV-1 infection to AIDS and improves the quality of life of HIV-1 infected individuals. A cross-sectional study was established to determine the possible effect of HIV-1/GBV-C coinfection on HIV-1 viral load and CD4+ T lymphocyte counts. Samples from 313 HIV-1 infected persons from the Virus Laboratory of the Federal University of Pará as well as demographic and clinical information were obtained from medical records. This study used a nested PCR method to determine GBV-C viremia. The prevalence of HIV-1/GBV-C coinfection was 17%. There were no significant differences in the distribution according to age, sex or ethnicity between the groups. The differences in HIV-1 viral load and CD4+ T lymphocyte count between the HIV-1 and HIV-1/GBV-C groups were highly significant, indicating that coinfection results in lower viral loads and higher CD4+ T lymphocyte counts compared to HIV-1 mono-infection. The results indicate a protective effect among coinfected individuals.
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The ethical approval of the present research was received from the Research Ethics Committee of the João de Barros Barreto Hospital of the Federal University of Pará in compliance with resolution 466/2012 (Protocol no. 2092/05).
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The present study was funded by the National Council for Scientific and Technological Development (Conselho Nacional de Desenvolvimento Científico e Tecnológico – CNPq; process # 302582/2013-4).
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Funding source(s) had no involvement for the conduct of the research and/or preparation of the article.
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All individuals in the study population were informed about the current study, with a written consent form taken from each before her or his enrolment in the present study.
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de Miranda, B.K.B., de Sá, K.S.G., da Silva, A.N.R. et al. GBV-C/HIV-1 coinfection is associated with low HIV-1 viral load and high CD4+ T lymphocyte count. Arch Virol 162, 3431–3438 (2017). https://doi.org/10.1007/s00705-017-3514-y
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DOI: https://doi.org/10.1007/s00705-017-3514-y