Resposta virológica sustentada em pacientes com co-infecção pelos genótipos 1 e 2 do vírus da hepatite C, com apenas nove semanas de terapêutica antiviral: relato de caso

Araújo, Ana Ruth; Levi, José Eduardo; Almeida, Carlos Maurício Oliveira de; Lima, Tatiane Amábili de; Maia, Laura Patrícia Viana; Torres, Kátia Luz; Tarragô, Andréa Monteiro; Victoria, Flamir da Silva; Victoria, Marilu Barbieri; Talhari, Sinésio; Malheiro, Adriana

doi:10.1590/s0037-86822010000500030

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“…Genotype 4 is uncommon in Brazil, being found mainly in African countries [7]. The presence of two HCV genotypes in the same patient (1/2) was also found in this study and described by Araújo et al [9]. This is noteworthy since it suggests that the presence of the two genotypes did not interfere in the response to therapy based on IFN-RBV.…”

Section: Discussionsupporting

confidence: 85%

Immunological Dynamics Associated with Direct-Acting Antiviral Therapies in Naive and Experimented HCV Chronic-Infected Patients

Pereira

Tarragô

Neves

et al. 2019

Mediators of Inflammation

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The therapeutic strategies used in the treatment of hepatitis C are essentially based on the combination of direct-acting antiviral agents (DAAs). This therapy has been shown to be very effective in relation to patient adherence to treatment and has shown high rates of sustained virological response (SVR). However, the immunological dynamics of patients infected with HCV is poorly understood. This fact led us to investigate the immune system of naive and experienced patients, who we followed before the therapy and three months after the end of treatment. In this study, 35 naive and experienced Brazilian patients with chronic hepatitis C and 50 healthy donors (HD group) were studied. The analysis of the soluble immunological biomarkers was performed using the flow cytometry methodology. The SVR rate was >90% among the 35 patients. Before treatment, correlations in the naive HCV group demonstrated a mix of inflammatory response occurring with moderate correlations between chemokines, inflammatory cytokines, and Th2 profile, with a strong regulation between IL-10 and IL-17A. On the other hand, experienced patients demonstrated a poor interaction between cytokines, chemokines, and cells with a strong correlation between IL-10, IL-6, CXCL-10, and CD8+ besides the interactions between IFN-γ and IL-4. Furthermore, naive and experienced patients seem to have a distinct soluble biomarker profile; therefore, a long-term follow-up is needed to evaluate patients treated with DAAs.

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Section: Discussionsupporting

confidence: 85%