1. Cytokine, Genotype, and Viral Load Profile in the Acute and Chronic Hepatitis B.
- Author
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Ribeiro CRA, Martinelli KG, de Mello VDM, Baptista BDS, Dias NST, Paiva IA, Lewis-Ximenez LL, Pinto LMO, and de Paula VS
- Subjects
- Acute Disease epidemiology, Adult, Brazil epidemiology, Cytokines classification, Cytokines immunology, Female, Hepatitis B virus classification, Hepatitis B, Chronic epidemiology, Humans, Interferon-gamma blood, Male, Middle Aged, Qualitative Research, Retrospective Studies, Cytokines blood, Genotype, Hepatitis B virus genetics, Hepatitis B, Chronic genetics, Hepatitis B, Chronic immunology, Viral Load
- Abstract
Several hepatitis B virus (HBV) factors, including viral load, genotype, genome mutations, and cytokine production, have been reported to be associated with different risks of progression of liver disease. The aim of this study was to verify if there is an association among the levels of cytokines (interleukin [IL]-35, IL-6, IL-17A, interferon [IFN]- γ ) in the plasma, viral load, and the different genotypes of HBV in patients with acute or chronic hepatitis B. Methods: 49 serum samples, 20 from acute and 29 from chronic cases, were submitted to a real-time and nested-polymerase chain reaction to quantify, detect, and genotype HBV DNA. The cytokines IL-35, IL-6, IL-17A, and IFN- γ were detected by an enzyme-linked immunosorbent assay (ELISA). The median viral load was 3.15 log
10 IU DNA/mL and 2.90 log10 IU DNA/mL for acute and chronic patients, respectively. Genotype A, D, E, and F were identified in chronic carriers of HBV infection, while only genotype A and F were identified in individuals with acute infection. IFN- γ ( p = 0.024) and IL-17A ( p = 0.046) levels were significantly increased in chronic patients and IL-6 and IL-35 were higher in patients with acute infection, however, without statistical difference. IL-17A and IFN- γ can be modulating proinflammatory effects and inducing hepatocellular damage, in chronic patients, and IL-6 and IL-35 may be involved in viral elimination and protection against chronicity during the acute phase of infection. These results can contribute to understanding of the complex regulatory mechanisms of the host antiviral response related to cytokine production during acute and chronic HBV infection.- Published
- 2020
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