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ORIGINAL ARTICLE
Year : 2019  |  Volume : 6  |  Issue : 3  |  Page : 162-166

Assessment of hepatitis B virus genotype D and interleukin-10, interferon gamma, and tumor necrosis factor-α in fulminant hepatic failure


1 Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
2 Department of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India

Correspondence Address:
Hiba Sami
Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/cjhr.cjhr_131_18

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Background: Genotypically, hepatitis B virus (HBV) is divided into 8 groups, A–H. The interaction between HBV replication and immune responses against HBV infection plays an important role in the pathogenesis of virus infection. Aims and Objectives: In an attempt to elucidate the role of immunomodulatory, pro-inflammatory, and anti-inflammatory mediators in the pathogenesis of HBV genotype D fulminant hepatitis (FH), we assessed the role of interferon gamma (IFN-γ), tumor necrosis factor-α (TNF-α), and interleukin-10 (IL-10) in such patients. Subjects and Methods: Two hundred and seventy-six cases of acute hepatitis among which 37 cases of fulminant hepatic failure were screened. A genotyping system based on polymerase chain reaction using type-specific primers was used in this study (Sami et al. 2013). TNF-α, IL-10 levels, and IFN-γ serum level were measured by ELISA. Results: Genotype D was detected in 10 cases (27.02%) out of 37 FH patients. Mean IL-10, IFN-γ, and TNF-α levels in FH patients were significantly higher than the healthy controls at 127.6 ± 73.45 pg/ml (P < 0.001), 10.6778 ± 5.23 pg/ml (P < 0.0001), and 62.9000 ± 21.67 pg/ml (P < 0.001), respectively. IFN-γ and IL-10 levels were much higher in cases of hepatitis B e-antigen (HBeAg) seronegative individuals, mean levels being 20.77 pg/ml and 36.53 pg/ml, respectively. Using multiple linear regression analysis, the presence of HBeAg was inversely associated with TNF-α. Conclusion: This study clearly highlights the excessive dysregulated response of the three cytokines, more so of IL-10 which appears pivotal in the pathogenesis of FH. Interventions leading to suppression of IL-10 levels may be beneficial in improving the patient outcome.


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