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Farooq HZ, James M, Abbott J, Oyibo P, Divall P, Choudhry N, Foster GR. Risk factors for hepatocellular carcinoma associated with hepatitis C genotype 3 infection: A systematic review. World J Gastrointest Oncol 2024; 16:1596-1612. [PMID: 38660636 PMCID: PMC11037048 DOI: 10.4251/wjgo.v16.i4.1596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/21/2023] [Accepted: 01/23/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND Hepatitis C virus (HCV) is a blood-borne virus which globally affects around 79 million people and is associated with high morbidity and mortality. Chronic infection leads to cirrhosis in a large proportion of patients and often causes hepatocellular carcinoma (HCC) in people with cirrhosis. Of the 6 HCV genotypes (G1-G6), genotype-3 accounts for 17.9% of infections. HCV genotype-3 responds least well to directly-acting antivirals and patients with genotype-3 infection are at increased risk of HCC even if they do not have cirrhosis. AIM To systematically review and critically appraise all risk factors for HCC secondary to HCV-G3 in all settings. Consequently, we studied possible risk factors for HCC due to HCV-G3 in the literature from 1946 to 2023. METHODS This systematic review aimed to synthesise existing and published studies of risk factors for HCC secondary to HCV genotype-3 and evaluate their strengths and limitations. We searched Web of Science, Medline, EMBASE, and CENTRAL for publications reporting risk factors for HCC due to HCV genotype-3 in all settings, 1946-2023. RESULTS Four thousand one hundred and forty-four records were identified from the four databases with 260 records removed as duplicates. Three thousand eight hundred and eighty-four records were screened with 3514 excluded. Three hundred and seventy-one full-texts were assessed for eligibility with seven studies included for analysis. Of the seven studies, three studies were retrospective case-control trials, two retrospective cohort studies, one a prospective cohort study and one a cross-sectional study design. All were based in hospital settings with four in Pakistan, two in South Korea and one in the United States. The total number of participants were 9621 of which 167 developed HCC (1.7%). All seven studies found cirrhosis to be a risk factor for HCC secondary to HCV genotype-3 followed by higher age (five-studies), with two studies each showing male sex, high alpha feto-protein, directly-acting antivirals treatment and achievement of sustained virologic response as risk factors for developing HCC. CONCLUSION Although, studies have shown that HCV genotype-3 infection is an independent risk factor for end-stage liver disease, HCC, and liver-related death, there is a lack of evidence for specific risk factors for HCC secondary to HCV genotype-3. Only cirrhosis and age have demonstrated an association; however, the number of studies is very small, and more research is required to investigate risk factors for HCC secondary to HCV genotype-3.
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Affiliation(s)
- Hamzah Z Farooq
- Blizard Institute, Queen Mary University of London, London E1 2AT, United Kingdom
| | - Michael James
- Blizard Institute, Queen Mary University of London, London E1 2AT, United Kingdom
| | - Jane Abbott
- Blizard Institute, Queen Mary University of London, London E1 2AT, United Kingdom
| | - Patrick Oyibo
- School of Health and Psychological Sciences, University of London, London EC1V 0HB, United Kingdom
| | - Pip Divall
- University Hospitals of Leicester Library, University Hospitals of Leicester NHS Trust, Leicester LE3 9QP, United Kingdom
| | - Naheed Choudhry
- Blizard Institute, Queen Mary University of London, London E1 2AT, United Kingdom
| | - Graham R Foster
- Blizard Institute, Queen Mary University of London, London E1 2AT, United Kingdom
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Hua R, Kong F, Li G, Wen X, Zhang Y, Yang X, Meng C, Xie W, Jiang Y, Wang X, Han X, Huang Y, Mao Q, Wang J, Guan Y, Chen J, Ma Y, Xiong Q, Ma H, Yan X, Rao H, Zhao Y, Sun T, Zhu L, Mao X, Lian J, Deng G, Xin Y, Wang Y, Ye Y, Xu B, Gao H, Tan Y, Li D, Yang D, Su M, Zhang X, Min J, Shi X, Wei L, Niu J. Alfosbuvir plus Daclatasvir for Treatment of Chronic Hepatitis C Virus Infection in China. Infect Dis Ther 2023; 12:2595-2609. [PMID: 37856013 PMCID: PMC10651614 DOI: 10.1007/s40121-023-00872-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 09/05/2023] [Indexed: 10/20/2023] Open
Abstract
INTRODUCTION A pan-genotypic and effective treatment regimen for patients with chronic hepatitis C virus (HCV) infection remains an unmet medical need in China. Alfosbuvir is a novel potent HCV NS5B polymerase inhibitor in development for the treatment of chronic HCV infection. We conducted a phase 3 study to evaluate the efficacy and safety of alfosbuvir in combination with daclatasvir in Chinese patients with HCV infection. METHODS All patients received 600 mg alfosbuvir tablets plus 60 mg daclatasvir tablets once daily for 12 weeks. The primary endpoint was sustained virological response 12 weeks after the end of treatment (SVR12). A follow-up visit was done at week 4 and 12, and those who achieved SVR12 were followed up at post-treatment week 24. RESULTS Of the 326 patients who received at least one dose of the study drug, 320 (98.2% [95% confidence interval (CI): 96.5%-99.5%]) achieved sustained virological response at post-treatment week 12 (SVR12), which was superior to the historical SVR12 rate of 88% (p < 0.0001). The SVR12 rates were similar regardless of most baseline characteristics. The most common adverse event (AE) (≥ 10%) was hypercholesterolemia. Serious adverse events (SAEs) were reported in 25 (7.7%) patients, none of which was judged to be related to the study drug. The majority of AEs were mild to moderate in severity. CONCLUSIONS Alfosbuvir plus daclatasvir for 12 weeks was highly effective and safe in Chinese patients infected with HCV genotype 1, 2, 3, or 6, suggesting that this regimen could be a promising option for HCV treatment in China irrespective of genotype. TRIAL REGISTRATION ClinicalTrial.gov identifier, NCT04070235.
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Affiliation(s)
- Rui Hua
- Center of Infectious Diseases and Pathogen Biology, Department of Hepatology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, State Key Laboratory of Zoonotic Disease, The First Hospital of Jilin University, Jilin, 130012, China
| | - Fei Kong
- Center of Infectious Diseases and Pathogen Biology, Department of Hepatology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, State Key Laboratory of Zoonotic Disease, The First Hospital of Jilin University, Jilin, 130012, China
| | - Guangming Li
- Zhengzhou Sixth People's Hospital, Zhengzhou, China
| | | | - Yuexin Zhang
- The First Hospital Affiliated to Xinjiang Medical University, Urumchi, China
| | | | - Chenxin Meng
- The Sixth People's Hospital of Shenyang, Shenyang, China
| | - Wen Xie
- Beijing Ditan Hospital Affiliated with Capital Medical University, Beijing, China
| | - Yongfang Jiang
- The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xiaozhong Wang
- Xinjiang Uygur Autonomous Region Hospital of Traditional Chinese Medicine, Urumchi, China
| | - Xueji Han
- Affiliated Hospital of Yanbian University, Yanbian, China
| | - Yan Huang
- Xiangya Hospital, Central South University, Changsha, China
| | - Qing Mao
- The First Affiliated Hospital of Army Military Medical University, ChongQing, China
| | - Jiefei Wang
- Shanghai Public Health Clinical Center, Shanghai, China
| | - Yujuan Guan
- Guangzhou Eighth People's Hospital, Guangzhou, China
| | - Jiayu Chen
- The 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou, China
| | - Yingjie Ma
- Zhengzhou People's Hospital, Zhengzhou, China
| | | | - Hong Ma
- Beijing Friendship Hospital Affiliated with Capital Medical University, Beijing, China
| | - Xuebing Yan
- The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Huiying Rao
- Peking University People's Hospital, Beijing, China
| | - Yingren Zhao
- The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tong Sun
- The Fifthth People's Hospital of Wuxi, Wuxi, China
| | - Liying Zhu
- The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaorong Mao
- The First Hospital of Lanzhou University, Lanzhou, China
| | - Jianqi Lian
- Tangdu Hospital, The Fourth Military Medical University of the PLA, Xi'an, China
| | | | | | - Yifei Wang
- Tonghua Central Hospital, Tonghua, China
| | - Yinong Ye
- Foshan First People's Hospital, Foshan, China
| | - Bin Xu
- Beijing You'an Hospital Affiliated with Capital Medical University, Beijing, China
| | - Hainv Gao
- Shulan (Hangzhou) Hospital, Hangzhou, China
| | - Youwen Tan
- The Third People's Hospital of Zhenjiang, Zhenjiang, China
| | - Dongliang Li
- The 900Th Hospital of Joint Logistics Support Force of PLA, Fuzhou, China
| | - Dongliang Yang
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Minghua Su
- The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | | | - Jie Min
- Nanjing Sanhome Pharmaceutical Co., Ltd, Nanjing, China
| | - Xinsheng Shi
- Nanjing Sanhome Pharmaceutical Co., Ltd, Nanjing, China
| | - Lai Wei
- Beijing Tsinghua Changgung Hospital, Beijing, China.
| | - Junqi Niu
- Center of Infectious Diseases and Pathogen Biology, Department of Hepatology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, State Key Laboratory of Zoonotic Disease, The First Hospital of Jilin University, Jilin, 130012, China.
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Nickbakhsh S, McWilliam Leitch EC, Smith S, Davis C, Hutchinson S, Irving WL, McLauchlan J, Thomson EC. Geographical variation in hepatitis C-related severe liver disease and patient risk factors: a multicentre cross-sectional study. Epidemiol Infect 2023; 151:e59. [PMID: 36915219 PMCID: PMC10126891 DOI: 10.1017/s0950268823000377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 02/05/2023] [Accepted: 03/02/2023] [Indexed: 03/15/2023] Open
Abstract
Despite promising steps towards the elimination of hepatitis C virus (HCV) in the UK, several indicators provide a cause for concern for future disease burden. We aimed to improve understanding of geographical variation in HCV-related severe liver disease and historic risk factor prevalence among clinic attendees in England and Scotland. We used metadata from 3829 HCV-positive patients consecutively enrolled into HCV Research UK from 48 hospital centres in England and Scotland during 2012-2014. Employing mixed-effects statistical modelling, several independent risk factors were identified: age 46-59 y (ORadj 3.06) and ≥60 y (ORadj 5.64) relative to <46 y, male relative to female sex (ORadj 1.58), high BMI (ORadj 1.73) and obesity (ORadj 2.81) relative to normal BMI, diabetes relative to no diabetes (ORadj 2.75), infection with HCV genotype (GT)-3 relative to GT-1 (ORadj 1.75), route of infection through blood products relative to injecting drug use (ORadj 1.40), and lower odds were associated with black ethnicity (ORadj 0.31) relative to white ethnicity. A small proportion of unexplained variation was attributed to differences between hospital centres and local health authorities. Our study provides a baseline measure of historic risk factor prevalence and potential geographical variation in healthcare provision, to support ongoing monitoring of HCV-related disease burden and the design of risk prevention measures.
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Affiliation(s)
- Sema Nickbakhsh
- MRC-University of Glasgow Centre for Virus Research, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - E. Carol McWilliam Leitch
- MRC-University of Glasgow Centre for Virus Research, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Shanley Smith
- Public Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow G2 6QE, UK
| | - Chris Davis
- MRC-University of Glasgow Centre for Virus Research, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Sharon Hutchinson
- Public Health Scotland, Meridian Court, 5 Cadogan Street, Glasgow G2 6QE, UK
| | - William L. Irving
- NIHR Nottingham Digestive Diseases Biomedical Research Unit, University of Nottingham, Nottingham NG7 2RD, UK
| | - John McLauchlan
- MRC-University of Glasgow Centre for Virus Research, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Emma C. Thomson
- MRC-University of Glasgow Centre for Virus Research, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH, UK
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Yang J, Qi JL, Wang XX, Li XH, Jin R, Liu BY, Liu HX, Rao HY. The burden of hepatitis C virus in the world, China, India, and the United States from 1990 to 2019. Front Public Health 2023; 11:1041201. [PMID: 36935711 PMCID: PMC10018168 DOI: 10.3389/fpubh.2023.1041201] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 02/02/2023] [Indexed: 03/06/2023] Open
Abstract
Background and aim Hepatitis C virus infection can lead to an enormous health burden worldwide. Investigating the changes in HCV-related burden between different countries could provide inferences for disease management. Hence, we aim to explore the temporal tendency of the disease burden associated with HCV infection in China, India, the United States, and the world. Methods Detailed data on the total burden of disease related to HCV infection were collected from the Global Burden of Disease (GBD) 2019 database. Joinpoint regression models were used to simulate the optimal joinpoints of annual percent changes (APCs). Further analysis of the age composition of each index over time and the relationship between ASRs and the socio-demographic Index (SDI) were explored. Finally, three factors (population growth, population aging, and age-specific changes) were deconstructed for the changes in the number of incidences, deaths, and DALYs. Results It was estimated that 6.2 million new HCV infections, 0.54 million HCV-related deaths, and 15.3 million DALYs worldwide in 2019, with an increase of 25.4, 59.1, and 43.6%, respectively, from 1990, are mainly due to population growth and aging. China experienced a sharp drop in age-standardized rates in 2019, the United States showed an upward trend, and India exhibited a fluctuating tendency in the burden of disease. The incidence was increasing in all locations recently. Conclusion HCV remains a global health concern despite tremendous progress being made. The disease burden in China improved significantly, while the burden in the United States was deteriorating, with new infections increasing recently, suggesting more targeted interventions to be established to realize the 2030 elimination goals.
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Affiliation(s)
- Jia Yang
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Peking University Hepatology Institute, Peking University People's Hospital, Beijing, China
| | - Jin-Lei Qi
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiao-Xiao Wang
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Peking University Hepatology Institute, Peking University People's Hospital, Beijing, China
| | - Xiao-He Li
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Peking University Hepatology Institute, Peking University People's Hospital, Beijing, China
| | - Rui Jin
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Peking University Hepatology Institute, Peking University People's Hospital, Beijing, China
| | - Bai-Yi Liu
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Peking University Hepatology Institute, Peking University People's Hospital, Beijing, China
| | - Hui-Xin Liu
- Department of Clinical Epidemiology and Biostatistics, Peking University People's Hospital, Beijing, China
- *Correspondence: Hui-Ying Rao
| | - Hui-Ying Rao
- Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Peking University Hepatology Institute, Peking University People's Hospital, Beijing, China
- Hui-Xin Liu
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Patel P, Patel N, Ahmed F, Gluck J. Review of heart transplantation from hepatitis C-positive donors. World J Transplant 2022; 12:394-404. [PMID: 36570408 PMCID: PMC9782687 DOI: 10.5500/wjt.v12.i12.394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/03/2022] [Accepted: 11/23/2022] [Indexed: 12/16/2022] Open
Abstract
Significant scarcity of a donor pool exists for heart transplantation (HT) as the prevalence of patients with end-stage refractory heart failure is increasing exceptionally. With the discovery of effective direct-acting antiviral and favorable short-term outcomes following HT, the hearts from hepatitis C virus (HCV) patient are being utilized to increase the donor pool. Short-term outcomes with regards to graft function, coronary artery vasculopathy, and kidney and liver disease is comparable in HCV-negative recipients undergoing HT from HCV-positive donors compared to HCV-negative donors. A significant high incidence of donor-derived HCV transmission was observed with great success of achieving sustained viral response with the use of direct-acting antivirals. By accepting HCV-positive organs, the donor pool has expanded with younger donors, a shorter waitlist time, and a reduction in waitlist mortality. However, the long-term outcomes and impact of specific HCV genotypes remains to be seen. We reviewed the current literature on HT from HCV-positive donors.
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Affiliation(s)
- Palak Patel
- Department of Cardiology, West Roxbury VA Center, West Roxbury, MA 02132, United States
| | - Nirav Patel
- Department of Cardiology, University of Connecticut, Harford Hospital, Hartford, CT 06102, United States
- Department of Cardiology, University of California, CA 90065, United States
| | - Fahad Ahmed
- Department of Internal Medicine, Hartford Hospital, Hartford, CT 06106, United States
| | - Jason Gluck
- Advanced Heart Failure, Hartford Hospital, Hartford, CT 06102, United States
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Yang J, Liu HX, Su YY, Liang ZS, Rao HY. Distribution and changes in hepatitis C virus genotype in China from 2010 to 2020. World J Clin Cases 2022; 10:4480-4493. [PMID: 35663077 PMCID: PMC9125278 DOI: 10.12998/wjcc.v10.i14.4480] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 02/28/2022] [Accepted: 03/26/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Hepatitis C virus (HCV) causes a large number of infections worldwide. New infections seem to be increasing according to a report of the World Health Organization in 2015. Although direct-acting antivirals are quite effective for most genotypes of the HCV, some genotypes fail to respond. Therefore, the trend of genotype distribution is vital to better control the development of this infection.
AIM To analyze the distribution and trends of the HCV genotype before and after the emergence of direct-acting antivirals in China.
METHODS We searched all literature published in five electronic databases-China National Knowledge Infrastructure, Wan Fang Data, VIP Chinese Journal Database, Chinese Biomedical Literature Service System, and PubMed-from January 1, 2010 to December 31, 2020. The search strategy combined medical subject headings and free-text terms, including “hepatitis C virus” or “HCV” and “genotype” or “subtype” and ”China” or “Chinese”. Additional relevant articles were searched by manual selection. Data were extracted to build a database. All of the data were totaled according to regions, periods, routes of transmission, and sexes. The percentages in various stratifications were calculated.
RESULTS There were 76110 samples from 30 provinces included in the study. Genotype 1 (G1) accounted for 58.2% of cases nationwide, followed by G2, G6, G3b, G3a, unclassified and mixed infections (17.5%, 7.8%, 6.4%, 4.9%, 1.8%, and 1.2%, respectively). The constitution of genotype varied among different regions, with G6 and G3b being more common in the south and southwest, respectively (28.1%, 15.4%). The past ten years have witnessed a decrease in G1 and G2 and an increase in G3 and G6 in almost all regions. The drug-use population had the most abundant genotypes, with G6 ranking first (33.3%), followed by G1 and G3b (23.4%, 18.5%).
CONCLUSION G3 and G6 pose a new challenge for HCV infection. This study revealed the distribution of HCV genotypes in China over the past 10 years, providing information for HCV management strategies.
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Affiliation(s)
- Jia Yang
- Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Peking University People’s Hospital, Beijing 100044, China
| | - Hui-Xin Liu
- Department of Clinical Epidemiology and Biostatistics, Peking University People’s Hospital, Beijing 100044, China
| | - Ying-Ying Su
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen 361000, Fujian Province, China
| | - Zhi-Sheng Liang
- Department of Global Health, School of Public Health, Peking University, Beijing 100044, China
| | - Hui-Ying Rao
- Peking University Hepatology Institute, Beijing Key Laboratory of Hepatitis C and Immunotherapy for Liver Diseases, Peking University People’s Hospital, Beijing 100044, China
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Cherepnin MA, Tsukanov VV, Savchenko AA, Vasyutin AV, Kasparov EV, Tonkikh JL, Borisov AG. Comparison of clinical and laboratory characteristics and frequency of liver fibrosis in patients with chronic viral hepatitis C of the first and third genotypes. MEDITSINSKIY SOVET = MEDICAL COUNCIL 2022:98-103. [DOI: 10.21518/2079-701x-2022-16-7-98-103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2024]
Abstract
Introduction. There is a discussion about which genotype of viral hepatitis C (HCV) is the most aggressive. Some authors consider that the 1st genotype is the most aggressive, others define the 3rd HCV genotype as a factor that determines the high activity of the pathological process. The solution of this issue is important for optimizing the tactics of patient management.Aim. To compare the clinical and laboratory characteristics and the incidence of liver fibrosis in patients with chronic viral hepatitis C of the first and third genotypes.Materials and methods. 297 patients with genotype 1 of HCV and 231 patients with genotype 3 of HCV were examined. The diagnosis of chronic viral hepatitis C was established according to the recommendations of the European Association for the Study of the Liver (2016, 2018). Liver fibrosis was studied by shear wave transient elastometry with METAVIR score.Results and discussion. The frequency of elevated ALT in the blood prevailed in patients with HCV genotype 3 compared with persons with HCV genotype 1 (90.5% vs. 82.8%, p = 0.02). ALT levels above 3 norms were registered in 29.0% of patients with genotype 3 and in 16.8% patients with HCV genotype 1 (p = 0.001). The frequency of liver fibrosis F2 according to METAVIR was 11.8% in patients with genotype 1 and 21.2% in patients with genotype 3 of HCV (p = 0.005); the frequency of liver fibrosis F3–F4 according to METAVIR was 20.5% in patients with genotype 1 and 32.5% in patients with genotype 3 of HCV (p = 0.003). The combination of high viral load and high inflammatory activity, which was associated with liver fibrosis F3–F4 according to METAVIR in both compared groups, was determined in 16.9% of patients with genotype 3 and only in 10.4% of patients with genotype 1 of HCV (p = 0.04).Conclusion. The obtained data allow us to consider that in the surveyed population the course of chronic viral hepatitis C with genotype 3 is clearly more aggressive than in persons with genotype 1 of HCV.
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Affiliation(s)
- M. A. Cherepnin
- Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences, Separate Subdivision “Scientific Research Institute of medical problems of the North”
| | - V. V. Tsukanov
- Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences, Separate Subdivision “Scientific Research Institute of medical problems of the North”
| | - A. A. Savchenko
- Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences, Separate Subdivision “Scientific Research Institute of medical problems of the North”
| | - A. V. Vasyutin
- Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences, Separate Subdivision “Scientific Research Institute of medical problems of the North”
| | - E. V. Kasparov
- Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences, Separate Subdivision “Scientific Research Institute of medical problems of the North”
| | - J. L. Tonkikh
- Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences, Separate Subdivision “Scientific Research Institute of medical problems of the North”
| | - A. G. Borisov
- Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences, Separate Subdivision “Scientific Research Institute of medical problems of the North”
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Prevalence, Genotypic Distribution and the associated Risk Factors of Hepatitis C Infection in Pakistan Pediatric Patients. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2022. [DOI: 10.22207/jpam.16.1.01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
Abstract
Hepatitis C virus (HCV) is an important contributor to chronic morbidity and mortality in developing countries. The study’s objective was to determine the genotype distribution and risk factors associated with the transmission of HCV infections in pediatric patients. Rapid screening and confirmation by the enzyme-linked immunosorbent assay (ELISA) were used to analyze 585 pediatric blood specimens hospitalized and visited the outpatient department of the largest tertiary care hospital in Pakistan. Detection and genotyping of HCV RNA were performed using a real-time polymerase chain reaction (RT-PCR). Demographic data and a history of risk factors were gathered through a survey questionnaire. HCV RNA was detected in 323 (72.4%) cases which showed viral load ranging from Log10 IU/mL < 3 to > 6 IU/mL. HCV genotype 3a was detected in 256 (79.3%) cases while type 3b and 1a was observed in 36 (11.1%) and 31 (9.6%) patients, respectively. HCV positivity was significantly associated with the cases from rural areas [p = 0.005; odds ratio (OR) 1.65; 95% CI 1.16-2.23] and also significantly associated with low-income group [p < 0.001; OR 5.75; 95% CI 3.90-8.40]. The primary risk factors associated with HCV transmission in children were family history (p = 0.002), blood transfusion (p = 0.03), surgical procedures (p = 0.02), and history of injections (p = 0.05). HCV genotype 3a is the most common genotype in children. The main risk factors for HCV transmission in children are blood transfusion, surgical procedures, and injection practices by informal health care providers.
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Chen M, Xu Y, Li N, Yin P, Zhou Q, Feng S, Wu T, Wei L, Wang H, Fu Y, Li YP. Development of full-length cell-culture infectious clone and subgenomic replicon for a genotype 3a isolate of hepatitis C virus. J Gen Virol 2021; 102. [DOI: 10.1099/jgv.0.001704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Hepatitis C virus (HCV) genotype 3 is widely distributed, and genotype 3-infected patients achieve a lower cure rate in direct-acting antiviral (DAA) therapy and are associated with a higher risk of hepatic steatosis than patients with other genotypes. Thus, the study of the virology and pathogenesis of genotype 3 HCV is increasingly relevant. Here, we developed a full-length infectious clone and a subgenomic replicon for the genotype 3a isolate, CH3a. From an infected serum, we constructed a full-length CH3a clone, however, it was nonviable in Huh7.5.1 cells. Next, we systematically adapted several intergenotypic recombinants containing Core-NS2 and 5′UTR-NS5A from CH3a, and other sequences from a replication-competent genotype 2 a clone JFH1. Adaptive mutations were identified, of which several combinations facilitated the replication of CH3a-JFH1 recombinants; however, they failed to adapt to the full-length CH3a and the recombinants containing CH3a NS5B. Thus, we attempted to separately adapt CH3a NS5B-3′UTR by constructing an intragenotypic recombinant using 5′UTR-NS5A from an infectious genotype 3a clone, DBN3acc, from which L3004P/M in NS5B and a deletion of 11 nucleotides (Δ11nt) downstream of the polyU/UC tract of the 3′UTR were identified and demonstrated to efficiently improve virus production. Finally, we combined functional 5′UTR-NS5A and NS5B-3′UTR sequences that carried the selected mutations to generate full-length CH3a with 26 or 27 substitutions (CH3acc), and both revealed efficient replication and virus spread in transfected and infected cells, releasing HCV of 104.2 f.f.u. ml−1. CH3acc was inhibited by DAAs targeting NS3/4A, NS5A and NS5B in a dose-dependent manner. The selected mutations permitted the development of subgenomic replicon CH3a-SGRep, by which L3004P, L3004M and Δ11nt were proven, together with a single-cycle virus production assay, to facilitate virus assembly, release, and RNA replication. CH3acc clones and CH3a-SGRep replicon provide new tools for the study of HCV genotype 3.
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Affiliation(s)
- Mingxiao Chen
- Joint Program in Pathology, Department of Internal Medicine, Guangzhou Women and Children’s Medical Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510623, PR China
| | - Yi Xu
- Joint Program in Pathology, Department of Internal Medicine, Guangzhou Women and Children’s Medical Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510623, PR China
| | - Ni Li
- Institute of Human Virology, Zhongshan School of Medicine, and Key Laboratory of Tropical Disease Control of Ministry of Education, Sun Yat-sen University, Guangzhou 510080, PR China
| | - Ping Yin
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, PR China
| | - Qing Zhou
- Institute of Human Virology, Zhongshan School of Medicine, and Key Laboratory of Tropical Disease Control of Ministry of Education, Sun Yat-sen University, Guangzhou 510080, PR China
| | - Shengjun Feng
- Institute of Human Virology, Zhongshan School of Medicine, and Key Laboratory of Tropical Disease Control of Ministry of Education, Sun Yat-sen University, Guangzhou 510080, PR China
| | - Tiantian Wu
- Institute of Human Virology, Zhongshan School of Medicine, and Key Laboratory of Tropical Disease Control of Ministry of Education, Sun Yat-sen University, Guangzhou 510080, PR China
| | - Lai Wei
- Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing 102218, PR China
| | - Haihe Wang
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, PR China
| | - Yongshui Fu
- Guangzhou Blood Center, Guangzhou 510095, PR China
| | - Yi-Ping Li
- Institute of Human Virology, Zhongshan School of Medicine, and Key Laboratory of Tropical Disease Control of Ministry of Education, Sun Yat-sen University, Guangzhou 510080, PR China
- Department of Infectious Diseases, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, PR China
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Frequency distribution of HCV resistance-associated variants in infected patients treated with direct-acting antivirals. Int J Infect Dis 2021; 115:171-177. [PMID: 34902582 DOI: 10.1016/j.ijid.2021.12.320] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 11/11/2021] [Accepted: 12/05/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Hepatitis C virus (HCV) is a global public health problem. Second-generation direct-acting antivirals targeting non-structural regions on the viral genome are the cornerstone for treatment of chronic infection. However, resistance-associated variants (RAVs) have been reported to be associated with therapeutic failure. The aim of this study was to assess the frequency of variants, including RAVs, in the NS3, NS5A and NS5B regions at baseline in Brazilian patients with chronic hepatitis C with HCV genotypes 1a, 1b and 3a. METHODS Serum samples from 13 patients were used to obtain viral RNA. Massively parallel sequencing was performed using genotype-specific amplicons and a panel of Ampliseq technology for all genotypes. RESULTS Several non-synonymous substitutions were detected at baseline for 11 responders and pre-/post-treatment for two non-responders. HCV genotype 3a was found to have significantly more non-synonymous substitutions than HCV genotype 1 in the NS3 and NS5A regions. Analyses were conducted using quantitative and qualitative inter- and intrapatient comparisons. Variants that confer resistance to the treatment used by the patients were found in both responders and non-responders. CONCLUSIONS A wide frequency distribution of RAVs was found at baseline, and this did not interfere with the achievement of a sustained response. Evaluation of the presence of RAVs requires additional study in order to determine clinical relevance.
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Jia Y, Yue W, Gao Q, Tao R, Zhang Y, Fu X, Liu Y, Liu L, Feng Y, Xia X. Characterization of a Novel Hepatitis C Subtype, 6xj, and Its Consequences for Direct-Acting Antiviral Treatment in Yunnan, China. Microbiol Spectr 2021; 9:e0029721. [PMID: 34479413 PMCID: PMC8552672 DOI: 10.1128/spectrum.00297-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 07/21/2021] [Indexed: 12/17/2022] Open
Abstract
Hepatitis C virus (HCV) has a high rate of genetic variability, with eight genotypes and 91 subtypes. The genetic diversity of HCV genotype 6 (HCV-6) is the highest with 31 subtypes, and this genotype is prevalent in Southeast Asia. In this study, we investigated 160 individuals with chronic hepatitis C in Yunnan Province, China. Using reverse transcription (RT)-PCR and Sanger sequencing, 147 cases were successfully amplified and genotyped as 3b (4.9%), 3a (19.73%), 6n (12.24%), 1b (7.48%), 2a (6.12%), 6a (2.04%), 1a (0.68%), 6v (0.68%), and 6xa (0.68%), with eight sequences remaining unclassified. Subsequently, the eight nearly full-length genomes were successfully amplified and analyzed. The eight complete coding sequences formed a phylogenetic group that was distinct from the previously assigned HCV-6 subtypes and clustered with two previously unnamed HCV-6 sequences. Furthermore, Simplot analysis showed no recombination and the p-distance was more than 15% in comparison to the 6a to 6xi subtypes. Taken together, we identified a new HCV-6 subtype, 6xj, which originated approximately in 1775 according to Bayesian analyses. Moreover, all eight individuals received follow-up assessments at 44 weeks from the beginning of their 12-week treatments of sofosbuvir/velpatasvir (after-treatment week 32). One case relapsed at after-treatment week 32. Next-generation sequencing (NGS) was conducted and showed that the treatment failure case had two suspected antiviral resistance mutations, NS5A V28M (a change of V to M at position 28) and NS5B A442V, compared with the baseline. Overall, this newly identified 6xj subtype further confirmed the high diversity of the HCV-6 genotype. The newly identified resistance-associated amino acid substitutions may help inform future clinical treatments. IMPORTANCE This study investigated the genetic diversity of hepatitis C virus (HCV), particularly in relation to genotype 6, which is prevalent in Yunnan, China, and is often difficult to treat successfully. We identified a new HCV-6 subtype, 6xj, which is an ancient strain. Moreover, all eight individuals with the novel subtype received follow-up assessments at 44 weeks from the beginning of their treatments. One case relapsed after 8 months of withdrawal. NGS was conducted and showed that the isolate from the treatment failure case had two suspected antiviral resistance mutations, NS5A V28M and NS5B A442V, compared with the baseline. Overall, this newly identified 6xj subtype further confirmed the high diversity of the HCV-6 genotype. The newly identified resistance-associated amino acid substitutions may help inform future clinical treatments. We believe that our study makes a significant contribution to the literature based on the results described above.
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Affiliation(s)
- Yuanyuan Jia
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Wei Yue
- Department of Infectious Diseases and Liver Diseases, The First People’s Hospital of Yunnan Province, Kunming, China
| | - Qinghua Gao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Rui Tao
- Department of Infectious Diseases and Liver Diseases, The First People’s Hospital of Yunnan Province, Kunming, China
| | - Yaxiang Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Xiaoyang Fu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Yang Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Li Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Yue Feng
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Xueshan Xia
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
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12
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Wang X, Wei L. Direct-acting Antiviral Regimens for Patients with Chronic Infection of Hepatitis C Virus Genotype 3 in China. J Clin Transl Hepatol 2021; 9:419-427. [PMID: 34221928 PMCID: PMC8237141 DOI: 10.14218/jcth.2020.00097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 03/20/2021] [Accepted: 03/24/2021] [Indexed: 12/20/2022] Open
Abstract
Hepatitis C virus (HCV) genotype (GT)3 infection is associated with a more rapid hepatic disease progression than the other genotypes. Hence, early HCV clearance slows down the disease progression and is important for improving prognosis in GT3-infected patients. Nevertheless, compared with other genotypes, GT3 is difficult-to-treat with direct-acting antivirals, especially in the presence of cirrhosis. Current guidelines recommend several regimens which have been proven to be effective in GT3-infected patients from the Western world (North America, Europe, and Oceania). In China, GT3 infection comprises 8.7-11.7% of the 10 million patients infected with HCV and has strikingly different characteristics from that in Western countries. Unlike the Western countries, where GT3a is the predominant subtype, GT3a and 3b each affect roughly half of Chinese GT3-infected patients, with 94-96% of the GT3b-infected patients carrying A30K+L31M double NS5A resistance-associated substitutions. Phase 3 clinical trials including GT3b-infected patients have suggested that GT3b infection is difficult to cure, making the regimen choice for GT3b-infected patients an urgent clinical gap to be filled. This review includes discussions on the epidemiology of HCV GT3 in China, recommendations from guidelines, and clinical data from both Western countries and China. The aim is to provide knowledge that will elucidate the challenges in treating Chinese GT3-infected patients and propose potential solutions and future research directions.
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Affiliation(s)
- Xiaozhong Wang
- Department of Hepatology, Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Lai Wei
- Hepatopancreatobiliary Center, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
- Correspondence to: Lai Wei, Hepatopancreatobiliary Center, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, 168 Litang Rd, Changping District, Beijing 102218, China. Tel: +86-10-56118881, Fax: +86-10-56118566, E-mail:
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13
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Ji F, Li J, Liu L, Liang J, Wang X, Liu J, Cai D, Huang R, Zhang J, Wang Q, Nan Y, Li J, Ye Q, Zhang M, Xu Q, Guo F, Zhao C, Liu L, He C, Li Y, Wang W, Kam LY, Tran S, Maeda M, Mizuta A, Li Z, Dang S, Ren W, Zhu Q, Cheung R, Niu J, Xie W, Pan H, Ren H, Wu C, Shang J, Wang F, Nguyen MH. High hepatitis C virus cure rates with approved interferon-free direct-acting antivirals among diverse mainland Chinese patients including genotypes 3a and 3b. J Gastroenterol Hepatol 2021; 36:767-774. [PMID: 32840326 DOI: 10.1111/jgh.15192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/04/2020] [Accepted: 07/19/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM Globally, China has the highest chronic hepatitis C (CHC) burden, but its real-world direct-acting antiviral (DAA) data are limited. Our aim is to investigate the real-world outcome of China Food and Drug Administration-approved DAA therapies across mainland China including those with genotype (GT) 3. METHODS The REAL-C is a multinational real-world interferon-free DAA-treated CHC registry of several mainland China and other Asian centers. We evaluated the sustained virological response rate 12 weeks after end of treatment (SVR12), adverse events, and treatment effect on liver function and fibrosis (fibrosis-4 index). RESULTS We analyzed 859 DAA-treated CHC patients (6/1/2017-5/30/2019) from 12 mainland China centers (three municipalities and nine provinces): median age 52, 49.9% male, 33.1% cirrhosis, 95% treatment naïve, and 2.5% HBsAg+ . The most common GT was GT1b (523, 62.2%), followed by GT2a (156, 18.5%), GT3b (74, 8.8%), GT3a (41, 4.9%), and GT6 (37, 4.4%). SVR12 rates were 98.0% overall (95% confidence interval 96.9-98.8%), 98.1% for GT1b, 96.8% GT2a, 100% GT3a, 97.3% GT3b, and 100% GT6. Baseline cirrhosis and male sex but not prior treatment history, renal dysfunction, age, and GTs were associated with SVR12. For both cirrhotic and non-cirrhotic patients, there were significant improvement in liver function tests, alpha fetoprotein, and fibrosis-4 index with SVR12. Serious adverse events were rare (1.1%) with only nine patients discontinuing therapy prematurely and anemia being the most common adverse event (13.1%, mostly with ribavirin). CONCLUSIONS In real-world Chinese patients with diverse GTs, Chinese Food and Drug Administration-approved interferon-free DAAs were well tolerated, provided high cure rates (98.0% overall) including GT3a/3b, and led to improvement of liver function.
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Affiliation(s)
- Fanpu Ji
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jie Li
- Department of Infectious Diseases, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Li Liu
- Department of Hepatology, The Third People's Hospital of Kunming, Kunming, China
| | - Jing Liang
- Department of Gastroenterology and Hepatology, Tianjin Third Central Hospital, Tianjin, China
| | - Xiaozhong Wang
- Hospital of Traditional Chinese Medicine Affiliated to Xinjiang Medical University, Urumqi, China
| | - Junping Liu
- Department of Infectious Diseases, Henan Provincial People's Hospital, Zhengzhou, China
| | - Dachuan Cai
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Rui Huang
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Jiajie Zhang
- Department of Infectious Diseases, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Qi Wang
- Center of Liver Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yuemin Nan
- Department of Hepatology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Junyi Li
- Department of Hepatology, The Third People's Hospital of Kunming, Kunming, China
| | - Qing Ye
- Department of Gastroenterology and Hepatology, Tianjin Third Central Hospital, Tianjin, China
| | - Mingyuan Zhang
- Department of Hepatology, First Hospital of Jilin University, Changchun, China
| | - Qiang Xu
- Hospital of Traditional Chinese Medicine Affiliated to Xinjiang Medical University, Urumqi, China
| | - Feng Guo
- Hospital of Traditional Chinese Medicine Affiliated to Xinjiang Medical University, Urumqi, China
| | - Changqing Zhao
- Department of Cirrhosis, Institute of Liver Disease, Shuguang Hospital, Shanghai University of T. C. M., Shanghai, China
| | - Lingdi Liu
- Department of Hepatology, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Caini He
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yu Li
- Department of Infectious Diseases, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Wenjun Wang
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Leslie Y Kam
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - Sally Tran
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - Mayumi Maeda
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - Akiko Mizuta
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - Zongfang Li
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shuangsuo Dang
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wanhua Ren
- Department of Infectious Diseases, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Qiang Zhu
- Department of Gastroenterology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Ramsey Cheung
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA.,Division of Gastroenterology and Hepatology, Veteran Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Junqi Niu
- Department of Hepatology, First Hospital of Jilin University, Changchun, China
| | - Wen Xie
- Center of Liver Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Hongying Pan
- Department of Infectious Diseases, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Hong Ren
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chao Wu
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Jia Shang
- Department of Infectious Diseases, Henan Provincial People's Hospital, Zhengzhou, China
| | - Fengmei Wang
- Department of Gastroenterology and Hepatology, Tianjin Third Central Hospital, Tianjin, China
| | - Mindie H Nguyen
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
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Phylogenetic Analysis of NS5B Region of Hepatitis C Genotype 3a Virus among Different Risk Groups in Iran. HEPATITIS MONTHLY 2021. [DOI: 10.5812/hepatmon.108936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
Background: Hepatitis C virus (HCV) is a major cause of liver diseases. Transmission of HCV, as a blood-borne virus, is a major concern for the safety of blood products. In Iran, intravenous drug abuse is a major risk factor for HCV transmission. Recently a change in the distribution of HCV genotype among Iranian blood donors has been reported, and genotype 3a is reported as the most frequent genotype. Also, genotype 3a is the dominant genotype among IDUs. Objective: To investigate the association between HCV genotype 3a circulating in the community, sequences of HCV genotype 3a were analyzed among different risk groups in Iran. Methods: In this cross-sectional study, a partial sequence of the NS5B region of the HCV genome was isolated from 58 blood donors, 48 intravenous drug users (IDUs), and 31 patients with inherited bleeding disorders (IBDs) infected with HCV genotype 3a were included. The published sequence data were obtained from the Gen Bank database and were compared to construct the phylogenetic trees. Results: Of 58 blood donors infected with subtype 3a, 31 (53.5%) reported the risk of intravenous drug abuse. In the phylogenetic tree, no separate cluster was formed to differentiate between HCV sequences in blood donors and IDUs. A cluster at the middle level was found in the phylogenetic tree formed by sequences from blood donors, IDUs, and patients with inherited bleeding disorders. Conclusions: The phylogenetic tree showed the phylogenetic mixing of genotype 3a sequences in BDs, IBD patients, and IDUs. The results confirmed the extensive transmission of IDU-related genotype 3a towards the general population.
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Azhar MJ, Khalid N, Azhar S, Irshad U, Ahmed H, Khan TM, Habib S, Ali Z, Anwar Y, Bilal M. Study of the Effect of Different Hepatitis C Virus Genotypes on Splenomegaly. Cureus 2020; 12:e10164. [PMID: 33014659 PMCID: PMC7526956 DOI: 10.7759/cureus.10164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Background Several recent studies have shown that the hepatitis C virus (HCV) and its different genotypes are a predominant and leading cause of cirrhosis and splenomegaly in different regions of the world. Advanced stage of cirrhosis leads to portal hypertension that causes splenomegaly. This complication may have many other manifestations such as anemia, infections, and bleeding disorders in severe stages. This study aimed to determine the effect of different HCV genotypes on the development of splenomegaly and to assess which HCV genotypes are more associated with it. Materials and methods A total of 483 conveniently sampled HCV patients were included in this descriptive cross-sectional study. Six genotypes (1, 2a, 2b, 3a, 3b, and mixed) were studied, and 80 patients for each of these genotypes were included. Data were collected from patient medical records regarding patient demographic details, HCV serology and genotyping, and sonographic size of the spleen. Results In total, splenomegaly was present in 14.1% (n=68) patients. The development of splenomegaly was significantly associated with old age, as 25.2% (n=26) of patients above 60 years of age (n=103) developed splenomegaly (P=0.005). Our study determined that splenomegaly was significantly related to HCV genotypes 3a, 3b, and 1 (P<0.001, P=0.017, and P=0.019, respectively). By taking mixed genotype as a reference, the odds of developing splenomegaly with genotype 3a were the highest (OR = 9.481; CI=95%). Conclusions Our study concludes that HCV genotype 3a, 3b, and 1, and age above 60 years have a significant association with splenomegaly. Genotype 3a has the highest risk of developing splenomegaly. Therefore, our study demands screening, early diagnosis, and prompt treatment of these particular HCV genotypes to prevent complications and risk of mortality.
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