Genetic polymorphisms as the predictors of response to antiviral treatment in chronic hepatitis C virus infection

2011 ◽  
Vol 152 (22) ◽  
pp. 876-881
Author(s):  
Alajos Pár
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Genetic Polymorphisms ◽  
Chronic Hepatitis C ◽  
Genome Wide Association Study ◽  
Antiviral Treatment ◽  
Hcv Infection ◽  
Snp Analysis ◽  
Chronic Hcv

The review discusses the genetic polymorphisms involved in the pathogenesis of hepatitis C virus (HCV) infection, that may determine the outcome of disease. In this field earlier both certain major histocompatibility complex (MHC) alleles and some cytokine gene variants have also been studied. Recently, the genome-wide association study (GWAS) and targeted single nucleotide polymorphism (SNP) analysis have revealed that a variant in the promoter region of interleukin-28B (IL-28B) gene is strongly linked to viral clearance and it may be the strongest pretreatment predictor of treatment response in chronic hepatitis C. Last year it was shown that two genetic variants leading to inosine triphosphatase deficiency protect against haemolytic anemia in patients receiving ribavirin during antiviral treatment for chronic HCV infection. Orv. Hetil., 2011, 152, 876–881.

scholarly journals Atherosclerosis as a Possible Extrahepatic Manifestation of Chronic Hepatitis C Virus Infection

2014 ◽  
Vol 8s3 ◽  
pp. CMC.S17069 ◽  
Author(s):  
Nobukazu Ishizaka ◽  
Yuko Ishizaka ◽  
Minoru Yamkado
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Chronic Hepatitis C ◽  
Target Population ◽  
Hcv Infection ◽  
Inverse Association ◽  
Vascular Changes ◽  
Chronic Hepatitis C Virus ◽  
Chronic Hcv

Chronic infection and associated inflammation may play a role in various unfavorable pathologic conditions, including atherosclerosis. Chronic hepatitis C virus (HCV) infection is thought to be associated with a higher prevalence of atherosclerotic vascular changes in the coronary artery, cerebrovascular artery, and carotid artery; however, little is known about the precise mechanisms by which HCV enhances atherogenic processes. Furthermore, some studies have found no association, or even an inverse association, between HCV infection and atherosclerotic vascular changes or cardiovascular events. Differences in data regarding the mode of association may be because of variations in sample size, target population, and study design. Nevertheless, physicians should be aware of cardiovascular disorders as a possible comorbidity – owing to their considerable consequences – among patients with chronic HCV infection.

scholarly journals Treatment options for chronic hepatitis C virus infection

2006 ◽  
Vol 59 (11-12) ◽  
pp. 560-566
Author(s):  
Ivanko Bojic ◽  
Ljubisa Dokic ◽  
Svetlana Minic
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Chronic Hepatitis C ◽  
Induction Therapy ◽  
Hcv Infection ◽  
Initiation Factor ◽  
Chronic Hepatitis C Virus ◽  
Chronic Hcv Infection ◽  
Chronic Hcv

Introduction. The incidence of chronic hepatitis C virus (HCV) infection is rather high. Its most frequent consequences are chronic hepatitis, liver cirrhosis, and hepatocellular carcinoma. Treatment of chronic HCV infection. In treatment of chronic HCV infection, interferons have antiviral, anriproliferative, and immunoregulatory action. Within the cell, they induce protein synthesis, inhibiting viral replication. The most important among them are RNA dependent protein kinase, and eukaryotic initiation factor. However, viral proteins prevent their phosphorylation and activation. In order to overcome this problem, treatment is prolonged, higher doses of IFN are used, as well as induction therapy. The optimal period for viral response is 52 weeks, while induction therapy has shown controversial results. .

scholarly journals Evidence for Protection against Chronic Hepatitis C Virus Infection in Chimpanzees by Immunization with Replicating Recombinant Vaccinia Virus

2008 ◽  
Vol 82 (21) ◽  
pp. 10896-10905 ◽  
Author(s):  
Jin-Won Youn ◽  
Yu-Wen Hu ◽  
Nancy Tricoche ◽  
Wolfram Pfahler ◽  
Mohamed Tarek Shata ◽  
...  
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Chronic Hepatitis C ◽  
Recombinant Vaccinia Virus ◽  
Hcv Infection ◽  
Recombinant Vaccinia ◽  
Chronic Hepatitis C Virus ◽  
Chronic Hcv Infection ◽  
Chronic Hcv

ABSTRACT Given the failures of nonreplicating vaccines against chronic hepatitis C virus (HCV) infection, we hypothesized that a replicating viral vector may provide protective immunity. Four chimpanzees were immunized transdermally twice with recombinant vaccinia viruses (rVV) expressing HCV genes. After challenge with 24 50% chimpanzee infective doses of homologous HCV, the two control animals that had received only the parental VV developed chronic HCV infection. All four immunized animals resolved HCV infection. The difference in the rate of chronicity between the immunized and the control animals was close to statistical significance (P = 0.067). Immunized animals developed vigorous gamma interferon enzyme-linked immunospot responses and moderate proliferative responses. To investigate cross-genotype protection, the immunized recovered chimpanzees were challenged with a pool of six major HCV genotypes. During the acute phase after the multigenotype challenge, all animals had high-titer viremia in which genotype 4 dominated (87%), followed by genotype 5 (13%). However, after fluctuating low-level viremia, the viremia finally turned negative or persisted at very low levels. This study suggests the potential efficacy of replicating recombinant vaccinia virus-based immunization against chronic HCV infection.

Epidemiological Situation of Chronic Hepatitis C Virus Infection in Russia and the Samara Region

2020 ◽  
pp. 72-77
Author(s):  
OV Churbakova ◽  
VG Akimkin ◽  
VV Pavlov ◽  
DV Pechkurov
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Chronic Hepatitis C ◽  
Fold Increase ◽  
Hcv Infection ◽  
Chronic Hepatitis C Virus ◽  
Chronic Hcv Infection ◽  
Chronic Hcv ◽  
Epidemiological Situation

Introduction: The ongoing adverse situation with the prevalence of chronic hepatitis C virus (HCV) infection makes it especially relevant to assess the epidemiological situation of this infection in the country as a whole and the Samara Region. Our objective was to determine characteristics of the epidemic process of chronic HCV infection in the territory of the Russian Federation and the Samara Region in 1997–2018. Results and discussion: We observed a dynamic 5.88-fold increase in the Russian rates of chronic HCV infection in 1997–2014 from 6.7 0/0000 to 39.4 0/0000 (p < 0.01) followed by a decrease by 16.5 % in 2015–2018 (from 39.2 0/0000 to 32.7 0/0000). In the Samara Region, we traced a periodic wave-like increase alternating with small drops in the prevalence rates during the whole observation period. In 1997–2016, the rates of chronic HCV infection rose from 5.2 0/0000 to 58.0 0/0000 (by 11.2 times; p < 0.01) and declined slightly from 58.0 0/0000 to 56.2 0/0000 in 2016–2018. The maximum rates of chronic HCV infection in the child population of the Samara Region were registered in 2002 and 2012 (7.1 0/0000 and 7.2 0/0000, respectively) with the minimum of 1.9 0/0000 noted in 2017. The analysis of the epidemiological situation of chronic hepatitis is important for subsequent trend forecasting and developing appropriate preventive measures.

scholarly journals Comparative study between two 2D-Shear Waves Elastography techniques for the non-invasive assessment of liver fibrosis in patients with chronic hepatitis C virus (HCV) infection

2021 ◽  
Author(s):  
Victor Bâldea ◽  
Felix Bende ◽  
Alina Popescu ◽  
Roxana Șirli ◽  
Ioan Sporea
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Liver Fibrosis ◽  
Chronic Hepatitis C ◽  
Hcv Infection ◽  
Operating Characteristics ◽  
Non Invasive ◽  
Chronic Hepatitis C Virus ◽  
Chronic Hcv

Aims: We aimed to compare the diagnostic performance of two 2D-Shear Wave Elastography (2D-SWE) techniques for the non-invasive assessment of liver fibrosis in patients with chronic hepatitis C virus (HCV) infection using Transient Elas-tography (TE) as reference. Material and methods: We enrolled 208 consecutive patients with chronic HCV infection, in which liver stiffness (LS) was evaluated in the same session using two 2D-SWE techniques: 2D-SWE.GE and 2D-SWE.SSI using TE as the method of reference. LS measurements were considered failures when no value was obtained after 10 attempts. Results: Valid LSMs were obtained in 95.6% (199/208) of cases by 2D-SWE.GE, 92.7% (193/208) of cases by 2D-SWE.SSI, and in 94.7% (197/208) of cases by TE (p>0.05). The mean LS values by 2D-SWE.GE were significantly lower than those obtained by 2D-SWE.SSI: 10.3±3.8 kPa vs. 15±10.4 kPa (p<0.0001). 2D-SWE.GE LSMs correlated better with TE than 2D-SWE.SSI (r=0.75, p<0.0001 vs. r=0.57, p<0.0001, z test p=0.0012). Linear regression analysis showed a moderate correlation between LSMs obtained by 2D-SWE.GE and 2D-SWE.SSI (r=0.63, R2=0.4, P<0.0001). Pairwise comparison of receiver operating characteristics curves (ROC) found no significant differences between 2D-SWE.GE and 2D-SWE.SSI in identifying F≥2 fibrosis (0.97 vs. 0.96, P = 0.5650), F≥3 (0.97 vs. 0.95, P = 0.2935), or F=4 (0.97 vs. 0.96, p = 0.6914). Conclusions: Both 2D-SWE techniques had good feasibility for the noninvasive assessment of liver fibrosis. LS values obtained by 2D-SWE.GE were significantly lower than those obtained by 2D-SWE.SSI. No significant differences were found between both methods in staging liver fibrosis in patients with chronic HCV.

The Effects of Interferon and Ribavirin in Chronic Hepatite C

2017 ◽  
Vol 68 (9) ◽  
pp. 2147-2150
Author(s):  
Liliana Coldea ◽  
Florin Grosu ◽  
Alina Liliana Pintea ◽  
Sebastian Ioan Cernusca Mitariu ◽  
Nicolae Grigore ◽  
...  
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Chronic Hepatitis C ◽  
Antiviral Treatment ◽  
Public Health Problem ◽  
Complete Response ◽  
Extrahepatic Manifestations ◽  
Hépatite C ◽  
Response Versus

The chronic hepatitis C is a frequently problem in worldwide, the number of infected individuals is high and go on, getting a public health problem [1]. In Romania there are nearly 1 million persons infected with hepatitis C virus, the scope of spreading is related with specific risk factors. An important number of infection with hepatitis C virus present simultaneous extrahepatic manifestations proved to be alone manifestation tracing; its important for diagnosis and treatment. We analyzed the effects of interferon and ribavirin in chronic hepatitis C in General C.F. Hospital Sibiu, between 2008 � 2012. The association between infection with hepatitis C virus and extrahepatic manifestations is important to be recognized for adequate diagnosis tests. By comparing the results of therapy in patients with hepatic and extrahepatic manifestations, the study found that 30 patients (58.83 %) with liver manifestations had an incomplete response versus 10 patients (26.32 %) with extrahepatic manifestations; 11 patients (21.54 %) with hepatic manifestations had a complete response versus 3 patients (7.89 %) with extrahepatic manifestations; and 10 patients (19.63 %) with hepatic manifestations did not respond to treatment versus 25 patients (65.79 %) with extrahepatic manifestations. Analyzing the results of antiviral therapy in patients with hepatic manifestations and those with extrahepatic manifestations, antiviral treatment appears to be more advantageous in cases with only hepatic manifestations.

scholarly journals Liver Impairment and Hematological Changes in Patients with Chronic Hepatitis C and COVID-19: A Retrospective Study after One Year of Pandemic

Medicina ◽  
2021 ◽  
Vol 57 (6) ◽  
pp. 597
Author(s):  
Bianca Cerbu ◽  
Stelian Pantea ◽  
Felix Bratosin ◽  
Iulia Vidican ◽  
Mirela Turaiche ◽  
...  
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C ◽  
Clinical Outcomes ◽  
Chronic Hepatitis C ◽  
Hcv Infection ◽  
Multivariate Logistic Regression Model ◽  
P Value ◽  
Liver Impairment ◽  
All Cause Mortality ◽  
Chronic Hcv

Background and Objectives: The COVID-19 pandemic is an ongoing public health emergency. Patients with chronic diseases are at greater risk for complications and poor outcomes. The objective of this study was to investigate the liver function abnormalities and clinical outcomes in patients with COVID-19 and chronic hepatitis C. Materials and Methods: This retrospective, single-center study was conducted on a cohort of 126 patients with a history of hepatitis C, confirmed with COVID-19 between 01 April 2020 and 30 December 2020. Several clinical outcomes were compared between patients with active and non-active HCV infection, and the risks of liver impairment and all-cause mortality in active HCV patients were analyzed using a multivariate logistic regression model. Results: Among 1057 patients under follow-up for chronic HCV infection, 126 (11.9%) were confirmed with COVID-19; of these, 95 (75.4%) were under treatment or achieved SVR, while in the other 31 (24.6%), we found active HCV replication. There was a significantly higher proportion of severe COVID-19 cases in the active HCV group as compared to the non-active HCV group (32.2 vs. 7.3%, p < 0.001). Multivariate analysis showed that age, sex, alanine aminotransferase, C-reactive protein, procalcitonin, and HCV viral load were significant independent risk factors for liver impairment and all-cause mortality. The length of stay in hospital and intensive care unit for COVID-19 was significantly higher in patients with active HCV infection (p-value < 0.001), and a higher proportion of these patients required mechanical ventilation. Conclusions: Active HCV infection is an independent risk factor for all-cause mortality in COVID-19 patients.

scholarly journals Pleuro-Pulmonary Nocardiosis as Opportunistic Infection in a Patient with Chronic Hepatitis C under Combination Treatment with Pegylated Interferon, Ribavirin, and Boceprevir

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Csilla Putz-Bankuti ◽  
Harald H. Kessler ◽  
Thomas Valentin ◽  
Eva Leitner ◽  
Emina Talakic ◽  
...  
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Chronic Hepatitis C ◽  
Pulmonary Infection ◽  
Antiviral Treatment ◽  
Pegylated Interferon ◽  
Hepatitis C Virus Infection ◽  
Chronic Hepatitis C Virus ◽  
Aerobic Actinomycetes

Nocardiosis is an infrequent but serious pulmonary infection caused by Gram-positive aerobic actinomycetes. In this paper, we report on a 48-year-old patient with pleuropulmonary nocardiosis and cirrhosis due to chronic hepatitis C virus infection treated with triple antiviral treatment complicated by prolonged neutropenia.

Circulating and inducible IL-32α in chronic hepatitis C virus infection

2019 ◽  
Vol 2 (1) ◽  
pp. 23-30
Author(s):  
Mark Collister ◽  
Julia Rempel ◽  
Jiaqi Yang ◽  
Kelly Kaita ◽  
Zach Raizman ◽  
...  
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Chronic Hepatitis C ◽  
Mononuclear Cells ◽  
Peripheral Blood Mononuclear ◽  
Chronic Hepatitis C Virus ◽  
Chronic Hcv

Background: Interleukin 32 (IL-32) is a recently described pro-inflammatory cytokine implicated in chronic hepatitis C virus (HCV)-related inflammation and fibrosis. IL-32α is the most abundant IL-32 isoform. Methods: Circulating IL-32α levels were documented in patients with chronic HCV infections ( n = 31) and compared with individuals who spontaneously resolved HCV infection ( n = 14) and HCV-naive controls ( n = 20). In addition, peripheral blood mononuclear cells (PBMC) from the chronic HCV ( n = 12) and HCV-naive ( n = 9) cohorts were investigated for responses to HCV core and non-structural (NS)3 protein induced IL-32α production. Finally, correlations between IL-32α levels, hepatic fibrosis and subsequent responses to interferon-based therapy were documented in patients with chronic HCV. Results: Circulating IL-32α levels in patients with chronic HCV were similar to those of spontaneously resolved and HCV-naive controls. HCV protein induced IL-32α responses were similar in chronic HCV patients and HCV-naive controls. In patients with chronic HCV, serum IL-32α levels correlated with worsening METAVIR fibrosis (F) scores from F0 to F3 ( r = 0.596, P < 0.001) as did NS3 induced IL-32α responses ( r = 0.837, P < 0.05). However, these correlations were not sustained with the inclusion of IL-32α levels at F4 scores, suggesting events at F4 interfere with IL-32α synthesis or release. In chronic HCV patients who underwent treatment ( n = 28), baseline in vivo and in vitro induced IL-32α concentrations were not predictive of therapeutic outcomes. Conclusions: IL-32α activity is associated with worsening fibrosis scores in non-cirrhotic, chronic HCV patients.

Changes in Serum Level of Autotaxin with Direct-Acting Antiviral Therapy in Patients with Chronic Hepatitis C

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Khaled Mohamed Hussein Abdelwahab ◽  
Shereen Abou Bakr Saleh ◽  
Ghada Abdelrahman Ahmed ◽  
Asmaa Mady Gomaa Mady
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Serum Level ◽  
Antiviral Therapy ◽  
Chronic Hepatitis C ◽  
Antiviral Treatment ◽  
Post Treatment ◽  
Direct Acting Antiviral ◽  
Direct Acting

Abstract Background Hepatitis C virus virus is global health burden and major health hazard in Egypt, since the virus is the etiological factor of chronic hepatitis. Hepatitis C virus (HCV) accounts for approximately 15%-20% cases of acute hepatitis. After acute infection, around 50% to 80% of HCV patients will develop chronic infection. Approximately, HCV infects 170 million individuals worldwide). Chronic hepatitis C (CHC) patients are at high risk to develop lifethreatening complications, including cirrhosis in 20% of cases and hepatocellular carcinoma. Objectives The aim of this study was to validate Changes in serum level of autotaxin in patients with chronic hepatitis C before and after antiviral treatment. Patients and methods This study was designed as a prospective observational cohort study to evaluate Changes in serum levels of autotaxin with direct-acting antiviral therapy in patients with chronic hepatitis C before (baseline) and after (sustained virologic response week 12) treatment. This prospective study was conducted on 48 chronic HCV infected patients eligible for antiviral treatment with direct acting antivirals, agreeable to regular follow up, recruited from Hepatology and virology outpatient clinic at DMNI (Damanhour Medical National Institute) during the period from September 2018 till Mars 2019. Results This study showed that Autotaxin level significantly decreased from baseline to 12 weeks post-treatment. ATX therefore represents a novel non-invasive biomarker for liver fibrosis and a prognostic indicator of disease activity. Conclusion Serum Autotaxin was found to be higher in chronic hepatitis c and ATX levels became significantly decreased from baseline to 12 weeks post-treatment with direct acting antiviral drugs in patients achieving a SVR.

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