scholarly journals Hepatitis C virus infection and tobacco smoking - joint health effects and implications for treatment of both: A systematic review

2021 ◽  
Author(s):  
Belaynew Wasie Taye
Keyword(s):  
Systematic Review ◽  
Smoking Cessation ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Health Outcomes ◽  
Health Effects ◽  
Tobacco Smoking ◽  
Hcv Infection ◽  
Measurement Tool ◽  
Hcv Treatment

Background: Tobacco smoking and hepatitis C virus (HCV) infection cause many diseases independently. The interaction of these conditions on health effects has not been widely studied. There is a paucity of information on addressing tobacco smoking in HCV treatment settings. This review examines the relationship between tobacco smoking and HCV infection and health outcomes and discusses opportunities for treating both conditions. Methods: A systematic review was conducted following the PRISMA 2009 guidelines (Registration No.: CRD42019127771). We searched PubMed, EMBASE, Web of Science, and CINAHL on the health effects of tobacco smoking and HCV infection using keywords and MeSH terms for hepatitis C, tobacco smoking, hepatocellular carcinoma (HCC), chronic obstructive pulmonary disease (COPD), diabetes mellitus (DM), cardiovascular diseases (CVD), and chronic kidney disease (CKD). We used the Newcastle-Ottawa Scale, a measurement tool to assess systematic reviews (AMSTAR-2), and international narrative systematic assessment (INSA) tools to assess the methodological quality of the included studies. Findings: Tobacco smoking and HCV infection share similar underlying risk factors and hence it is unsurprising that tobacco smoking prevalence is higher in people living with HCV (PLHCV) than in the general population. Tobacco smoking and HCV infection have additive or multiplicative interaction to cause HCC, COPD, DM, CVD, and CKD. Anti-HCV direct-acting antiviral (DAA) treatment is highly efficacious and widely accessible in many countries, but untreated tobacco smoking addiction may undermine the achievement of optimal health outcomes possible from HCV treatment. Interpretation: The scale-up of DAA treatment programs globally is an opportunity to address the high prevalence of tobacco smoking in PLHCV by concurrently offering tobacco smoking cessation treatment. Simultaneous initiation of smoking cessation therapy at HCV treatment centres is likely to be cost-effective at maximizing the health gains afforded by DAA treatment. Studies are needed to evaluate the effect of tobacco smoking cessation on the sustained virologic response in DAA treated patients.

scholarly journals Hepatitis C Virus Glycan-Dependent Interactions and the Potential for Novel Preventative Strategies

Pathogens ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 685
Author(s):  
Emmanuelle V. LeBlanc ◽  
Youjin Kim ◽  
Chantelle J. Capicciotti ◽  
Che C. Colpitts
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Immune Evasion ◽  
Hcv Infection ◽  
Major Contributor ◽  
Effective Management ◽  
Hcv Treatment ◽  
Entry Inhibitors ◽  
Chronic Hepatitis C Virus

Chronic hepatitis C virus (HCV) infections continue to be a major contributor to liver disease worldwide. HCV treatment has become highly effective, yet there are still no vaccines or prophylactic strategies available to prevent infection and allow effective management of the global HCV burden. Glycan-dependent interactions are crucial to many aspects of the highly complex HCV entry process, and also modulate immune evasion. This review provides an overview of the roles of viral and cellular glycans in HCV infection and highlights glycan-focused advances in the development of entry inhibitors and vaccines to effectively prevent HCV infection.

Role of Anti-Hepatitis C Virus (HCV) Treatment in HCV-Related, Low-Grade, B-Cell, Non-Hodgkin's Lymphoma: A Multicenter Italian Experience

2005 ◽  
Vol 23 (3) ◽  
pp. 468-473 ◽  
Author(s):  
Daniele Vallisa ◽  
Patrizia Bernuzzi ◽  
Luca Arcaini ◽  
Stefano Sacchi ◽  
Vittorio Callea ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
B Cell ◽  
Antiviral Treatment ◽  
Complete Response ◽  
Hcv Infection ◽  
Low Grade ◽  
Hcv Treatment ◽  
Hematologic Response

Purpose Hepatitis C virus (HCV) is endemic in some areas of Northwestern Europe and the United States. HCV has been shown to play a role in the development of both hepatocellular carcinoma and B-cell non-Hodgkin's lymphoma (B-NHL). The biologic mechanisms underlying the lymphomagenic activity of the virus so far are under investigation. In this study, the role of antiviral (anti-HCV) treatment in B-NHL associated with HCV infection is evaluated. Patients and Methods Thirteen patients with histologically proven low-grade B-NHL characterized by an indolent course (ie, doubling time no less than 1 year, no bulky disease) and carrying HCV infection were enrolled on the study. All patients underwent antiviral treatment alone with pegilated interferon and ribavirin. Response assessment took place at 6 and 12 months. Results Of the twelve assessable patients, seven (58%) achieved complete response and two (16%) partial hematologic response at 14.1 ± 9.7 months (range, 2 to 24 months, median follow-up, 14 months), while two had stable disease with only one patient experiencing progression of disease. Hematologic responses (complete and partial, 75%) were highly significantly associated to clearance or decrease in serum HCV viral load following treatment (P = .005). Virologic response was more likely to be seen in HCV genotype 2 (P = .035), while hematologic response did not correlate with the viral genotype. Treatment-related toxicity did not cause discontinuation of therapy in all but two patients, one of whom, however, achieved complete response. Conclusion This experience strongly provides a role for antiviral treatment in patients affected by HCV-related, low-grade, B-cell NHL.

scholarly journals Interactive Effects of Immunoglobulin Gamma and Human Leucocyte Antigen Genotypes on Response to Interferon Based Therapy of Hepatitis C Virus

2015 ◽  
Vol 3 (2) ◽  
pp. 245-249
Author(s):  
Howayda E. Gomaa ◽  
Mohamed Mahmoud ◽  
Nevine E. Saad ◽  
Amal S. Saad-Hussein ◽  
Somaia Ismail ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Genetic Markers ◽  
Human Leucocyte Antigen ◽  
Hcv Infection ◽  
Interactive Effects ◽  
Response To Treatment ◽  
Hcv Treatment ◽  
Adequate Response ◽  
Immunoglobulin Gamma

AIM: We examined the role that immunoglobulin GM 23 and KM allotypes—genetic markers of γ and κ chains, respectively—play in response to treatment of hepatitis C virus (HCV) infection in Egyptian patients.MATERIAL AND METHODS: A total of 120 persons who had responded to HCV treatment and 125 with persistent HCV infection were genotyped for the presence of GM23 and KM determinants. HLA –C genotyping was also done.RESULTS: Association of GM 23+ and KM3 was significantly associated with non response to treatment (P < 0.0001). Individuals who lacked this GM genotype (but were positive for KM1,2 and 3) were likely to respond to treatment (P=0.045). Association of heterozygous GM23 (+/-) with KM 1,2 and 3 or KM3 alone was significantly associated with SVR (P = 0.001) and (P = 0.0001) respectively. Particular combinations of HLA and GM genotypes were associated significantly with the response to HCV treatment. The combination of HLAC2C2 and GM23+ was associated with persistence of infection (P = 0.027) while the association of HLAC2C2 and heterozygous GM23+/- was associated with SVR (P = 0.001).The association of HLAC1C1 and heterozygous GM23+/- was significantly associated with SVR (P = 0.001) and also subjects with HLA C1/C2 and heterozygous GM23+/- were likely to respond to treatment (P = 0.003) while subjects with HLA C1/C2 and GM23+ show tendency to resist to treatment (P = 0.0001).CONCLUSION: Our results didn’t support a role for KM allotypes, GM23 allotype plays a role in the persistence of HCV infection in the presence or absence of KM1,3. Interaction between certain GM and HLA-C genotypes may favor adequate response to interferon based therapies.

Association of chronic hepatitis C virus infection with an increased risk of lung cancer: A systematic review and meta-analysis.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e13562-e13562
Author(s):  
Ben Ponvilawan ◽  
Nipith Charoenngam ◽  
Pongprueth Rujirachun ◽  
Phuuwadith Wattanachayakul ◽  
Surapa Tornsatitkul ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Systematic Review ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Search Strategy ◽  
Meta Analysis ◽  
Hcv Infection ◽  
Increased Risk ◽  
Chronic Hcv Infection ◽  
Chronic Hcv

e13562 Background: Chronic hepatitis C virus (HCV) infection is associated with increased risk of multiple types of extrahepatic cancer, such as lymphomas, thyroid cancer and renal cancer. However, whether HCV infection also increases the risk of lung cancer is still inconclusive. This systematic review and meta-analysis was performed in order to determine the relationship between chronic HCV infection and lung cancer. Methods: A systematic review was performed using EMBASE and MEDLINE databases from inception to November 2019 with search strategy that represents “hepatitis C virus” and “cancer”. Eligible studies must be cohort studies which include patients with chronic HCV infection and comparators without HCV infection, then follow them for incident lung cancer. Relative risk, incidence rate ratio (IRR), standardized incidence ratio, or hazard risk ratio of this association along with associated 95% confidence interval (CI) from each study were extracted and combined for the calculation of the pooled effect estimate using the random effect, generic inverse variance. Results: 20,459 articles were discovered using the aforementioned search strategy. After two rounds of review, eight studies fulfilled the inclusion criteria and were included into the meta-analysis. Chronic HCV infection was significantly associated with increased risk of lung cancer with the pooled relative risk of 1.94 (95% CI, 1.56 – 2.42; I2 = 87%). Funnel plot was fairly symmetric and not suggestive of presence of publication bias. Conclusions: Chronic HCV infection is significantly associated with a 1.94-fold increased risk in the development of lung cancer compared to no infection.

Treatment of Chronic Hepatitis C Virus Infection With Crushed Ledipasvir/Sofosbuvir Administered via a Percutaneous Endoscopic Gastrostomy Tube

2017 ◽  
Vol 31 (5) ◽  
pp. 522-524 ◽  
Author(s):  
Lauren Jindracek ◽  
Jennifer Stark
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Hcv Infection ◽  
Hcv Treatment ◽  
Endoscopic Gastrostomy ◽  
Chronic Hepatitis C Virus ◽  
Chronic Hcv Infection ◽  
Chronic Hcv ◽  
Peg Tube

Introduction: Ledipasvir/sofosbuvir (Harvoni®) is a fixed-dose tablet indicated for the treatment of chronic hepatitis C virus (HCV) infection. There are currently no data available on the safety and efficacy of crushed ledipasvir/sofosbuvir tablets. Case Summary: This report describes the first documented case of successful treatment of chronic HCV infection in a patient crushing ledipasvir/sofosbuvir for administration via a percutaneous endoscopic gastrostomy (PEG) tube. The patient was treatment experienced and had evidence of compensated cirrhosis. Treatment duration was 24 weeks, and HCV RNA was undetectable 12 weeks after completion of treatment (SVR12) which is the accepted measure of a clinical cure. Discussion: Issues may arise during or prior to starting HCV treatment that necessitate crushing tablets. Stopping or interrupting HCV treatment could lead to development of resistance or treatment failure. Conclusion: This is the first published case in which crushed ledipasvir/sofosbuvir administered via a PEG tube is documented as a safe and effective option for treatment of chronic HCV infection.

scholarly journals Prevalence of Hepatitis C Virus in Tuberculosis Patients: A Systematic Review and Meta-Analysis

1970 ◽  
Vol 29 (1) ◽  
Author(s):  
Meysam Behzadifar ◽  
Sanaz Heydarvand ◽  
Masoud Behzadifar ◽  
Nicola Luigi Bragazzi
Keyword(s):  
Systematic Review ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Meta Analysis ◽  
Random Effect ◽  
Random Effect Model ◽  
Final Analysis ◽  
Hcv Infection ◽  
Cochrane Library ◽  
And Gender

BACKGROUND: Infection with Hepatitis C Virus (HCV) increases the hepatotoxicity of anti-tuberculosis drugs. The purpose of this systematic review and meta-analysis is to determine the prevalence of HCV infection in patients with tuberculosis (TB).METHODS: PubMed/MEDLINE, ISI/Web of Sciences, CINAHL, EMBASE, the Cochrane Library and Scopus were searched from January 2000 to March 2018. The overall prevalence of HCV in patients with TB was calculated using the random-effect model with 95% confidence interval (CI). To evaluate heterogeneity, I2 test was used. Egger's regression test was utilized to check publication bias.RESULTS: Twenty-one articles were selected for the final analysis based on the inclusion/exclusion criteria. A total of 15,542 patients with TB participated in the studies. The overall prevalence of HCV infection in patients with TB was 7% [95%CI: 6-9]. Subgroup analysis revealed that diagnostic test (P=0.0039), geographical background (P=0.0076) and gender distribution (P=0.0672) were statistically significant moderators. Men had a higher risk for HCV than women (Odds Ratio, OR=2.02; 95%CI: 1.28-3.18).CONCLUSION: The results of this study highlighted the importance of screening HCV in TB patients. Knowing whether HCV is present or not in these patients can be helpful in effectively treating them. 

scholarly journals Progress toward closing gaps in the hepatitis C virus cascade of care for people who inject drugs in San Francisco

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0249585
Author(s):  
Ali Mirzazadeh ◽  
Yea-Hung Chen ◽  
Jess Lin ◽  
Katie Burk ◽  
Erin C. Wilson ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
San Francisco ◽  
People Who Inject Drugs ◽  
Sustained Viral Response ◽  
Hcv Infection ◽  
Similar Proportion ◽  
P Value ◽  
Hcv Treatment ◽  
Data Tracking

Background People who inject drugs (PWID) are disproportionately affected by hepatitis C virus (HCV). Data tracking the engagement of PWID in the continuum of HCV care are needed to assess the reach, target the response, and gauge impact of HCV elimination efforts. Methods We analyzed data from the National HIV Behavioral Surveillance (NHBS) surveys of PWID recruited via respondent driven sampling (RDS) in San Francisco in 2018. We calculated the number and proportion who self-reported ever: (1) tested for HCV, (2) tested positive for HCV antibody, (3) diagnosed with HCV, (4) received HCV treatment, (5) and attained sustained viral response (SVR). To assess temporal changes, we compared 2018 estimates to those from the 2015 NHBS sample. Results Of 456 PWID interviewed in 2018, 88% had previously been tested for HCV, 63% tested antibody positive, and 50% were diagnosed with HCV infection. Of those diagnosed, 42% received treatment. Eighty-one percent of those who received treatment attained SVR. In 2015 a similar proportion of PWID were tested and received an HCV diagnosis, compared to 2018. However, HCV treatment was more prevalent in the 2018 sample (19% vs. 42%, P-value 0.01). Adjusted analysis of 2018 survey data showed having no health insurance (APR 1.6, P-value 0.01) and having no usual source of health care (APR 1.5, P-value 0.01) were significantly associated with untreated HCV prevalence. Conclusion While findings indicate an improvement in HCV treatment uptake among PWID in San Francisco, more than half of PWID diagnosed with HCV infection had not received HCV treatment in 2018. Policies and interventions to increase coverage are necessary, particularly among PWID who are uninsured and outside of regular care.

Interventions to increase testing, linkage to care and treatment of hepatitis C virus (HCV) infection among people in prisons: A systematic review

2018 ◽  
Vol 57 ◽  
pp. 95-103 ◽  
Author(s):  
Nadine Kronfli ◽  
Blake Linthwaite ◽  
Fiona Kouyoumdjian ◽  
Marina B. Klein ◽  
Bertrand Lebouché ◽  
...  
Keyword(s):  
Systematic Review ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Linkage To Care ◽  
Hcv Infection ◽  
Care And Treatment

Distinct Clinical Features and Prognostic Factors in Hepatitis C Virus-Associated Non-Hodgkin’s Lymphoma: A Systematic Review and Meta-Analysis

2021 ◽  
Author(s):  
Minyue Zhang ◽  
Fei Gao ◽  
Ling Peng ◽  
Lijing Shen ◽  
Peng Zhao ◽  
...  
Keyword(s):  
Systematic Review ◽  
Prognostic Factors ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Clinical Features ◽  
Clinical Characteristics ◽  
Meta Analysis ◽  
Antiviral Treatment ◽  
Hcv Infection ◽  
Free Survival

Abstract Background: Increasing evidence suggested that hepatitis C virus (HCV) infection was associated with non-Hodgkin’s lymphoma (NHL). However, no clear consensus has been reached about the clinical features and the effective treatment in HCV-associated NHL patients. We therefore performed a systematic review and meta-analysis to explore the clinical characteristics and effect of antiviral treatment or rituximab administration in NHL patients with HCV infection.Methods: PubMed, Embase, Web of Science, and OVID database were searched for eligible studies up to Feb 28, 2021. Hazard ratio (HR) or odds ratio (OR) corresponding to 95% confidence interval (CI) were calculated to estimate outcomes. Publication biases were assessed by Egger's test and Begg's test. Statistical analysis was performed by software RevMan 5.4 and Stata version 15.Results: There were 27 shortlisted articles out of a total of 13368 NHL patients included in the current meta-analysis. Our results demonstrated that NHL patients with HCV infection showed significantly shorter overall survival (OS: HR 1.89; 95% CI 1.42-2.51, P<0.0001) and progress-free survival (PFS: HR 1.58; 95% CI 1.26-1.98, P<0.0001), lower overall response rate (ORR: OR 0.58, 95% CI 0.46-0.73, P<0.00001) and higher incidence of hepatic dysfunction during chemotherapy (OR 5.96; 95% CI 2.61-13.62, P<0.0001) compared with NHL patients without HCV infection. HCV-positive NHL patients exhibited advanced disease stage, elevated level of LDH, high-intermediate and high IPI/FLIPI risk as well as higher incidence of spleen and liver involvement. Moreover, antiviral treatment could prolong survivals (OS: HR 0.38; 95% CI 0.24-0.60, P<0.0001), reduce disease progression [PFS/DFS (disease-free survival): HR 0.63; 95% CI 0.46-0.86, P=0.003] and reinforce treatment response (ORR: OR 2.62; 95% CI 1.34-5.11, P=0.005) in HCV-infected NHL patients. Finally, rituximab administration was associated with a favorable OS while liver cirrhosis and low levels of albumin were inferior prognostic factors of OS for HCV-positive NHL patients. Conclusions: The current study provided the compelling evidence about an inferior prognosis and distinct clinical characteristics in HCV-associated NHL patients. Antiviral treatment and rituximab-containing regimes were shown to be efficacious to improve clinical outcomes of NHL patients with HCV infection.

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