Hepatitis C viral load in HCV-monoinfected and HCV/HIV-1-, HCV/HTLV-1/-2-, and HCV/HIV/HTLV-1/-2-co-infected patients from Sao Paulo, Brazil

Author(s)

Alves, Fabiana Aparecida ; Campos, Karoline Rodrigues ; Lemos, Marcilio Figueiredo ; Moreira, Regina Celia ; Caterino-de-Araujo, Adele

• Document type: Journal article
• Source: Brazilian Journal of Infectious Diseases; v. 22, n. 2, p. 6-pg., 2018-03-01.

Abstract

Co-infections of hepatitis C virus (HCV) and either human immunodeficiency virus type 1 (HIV-1), human T-cell lymphotropic virus type 1 (HTLV-1) or type 2 (HTLV-2) have been described as having an impact on HCV viremia and subsequent disease progression. HCV load in serum samples from 622 patients (343 males, 279 females; median age 50.8 years) from Sao Paulo/southeast Brazil was analyzed using the Abbott Real Time HCV assay (Abbott Molecular Inc., IL, USA). Samples were obtained from HCV-monoinfected (n = 548), HCV/HIV-1- (n = 41), HCV/HTLV-1- (n =16), HCV/HTLV-2- (n = 8), HCV/HIV/HTLV-1- (n =4), and HCV/HIV/HTLV-2-co-infected (n = 5) patients, and results were compared among the groups and according to sex. The median HCV load in HCV-monoinfected patients was 5.23 log(10) IU/mL and 0.31 log(10) higher in men than in women. Increases in viral load of 0.51 log(10), 0.54 log(10), and 1.43 log(10 )IU/mL were detected in HCV/HIV-1-, HCV/HTLV-1- and HCV/HIV/HTLV1-co-infected individuals, respectively, compared with HCV-monoinfected counterparts. In contrast, compared to HCV/HIV co-infected patients, HCV/HTLV-2-co-infected patients had an HCV load of 5.0 log(10) IU/mL, whereas HCV/HIV/HTLV-2-co-infected patients had a median load 0.37 log(10) IU/mL lower. Significant differences in HCV loads were detected, with males and HCV/HIV-1- and HCV/HIV/HTLV-1-co-infected patients presenting the highest values. Conversely, females and HCV/HTLV-2-co-infected patients exhibited lower HCV loads. Overall, HCV viremia is increased in HIV and/or HTLV-1-co-infection and decreased in HTLV-2 co-infection. (C) 2018 Sociedade Brasileira de Infectologia. Published by Elsevier Editora Ltda. (AU)

• FAPESP's process: 16/03654-0 - Host and virus genetic markers that influenced the course of the HIV-1, HIV-1/HTLV-1 and HIV-1/HTLV-2 coinfections
• Grantee: Adele Caterino de Araújo
• Support Opportunities: Regular Research Grants
• FAPESP's process: 12/51220-8 - Surveillance and diagnosis of HTLV-1 and HTLV-2 in HIV-infected individuals (SuDiHIV/HTLV)
• Grantee: Adele Caterino de Araújo
• Support Opportunities: Research Grants - Research in Public Policies for the National Health Care System (PP-SUS)