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Benjy Yi-Min Soh, Rajneesh Kumar, Victoria Sze-Min Ekstrom, Clement Yi-Hao Lin, Sobhana D/O Thangaraju, Hwee Huang Tan, Kwai Peng Chan, Lina Hui Lin Choong, Diana Teo, Wan Cheng Chow
INTRODUCTION: To study the prevalence of hepatitis C virus (HCV)-infection in blood donor (BD), haemodialysis (HD) and intravenous drug user (IVDU) populations in Singapore and assess the IL28B polymorphism if HCV positive. METHODS: The BD population were healthy volunteers, the HD population were patients who were on haemodialysis for at least 6 months of follow-up between Jan 2009 and Dec2014. IVDU population was from inmates at half-way houses who consented. RESULTS: Between 2011 and 2014, of 161,658 individuals screened for blood donation, 42 (0...
June 21, 2018: Singapore Medical Journal
Berhanu Degefa, Teklehaymanot Gebreeyesus, Zufan Gebremedhin, Getachew Melkamu, Atsebaha Gebrekidan, Haftamu Hailekiros, Ephrem Tsegay, Selam Niguse, Mahmud Abdulkader
Blood transfusion services are a vital and integral part of modern healthcare services. However, the risk of transfusion transmittable infections (TTI) has been a major handicap. Therefore this study was aimed at determining the prevalence of hepatitis B, Hepatitis C and human immunodeficiency virus among blood donors. A retrospective study was conducted to collect data about the blood donors that consecutively donated blood from October 2011 to 2014. A three-year retrospective study was conducted in Mekelle Blood Bank...
June 15, 2018: Journal of Medical Virology
J A Shenge, G N Odaibo, D O Olaleye
Hepatitis C virus (HCV) infection is responsible for liver diseases and hepatocellular carcinoma in chronically-infected patients. Owing to high sequence variability in HCV genome, numerous subtypes have emerged. This study determined HCV strains among patients with clinical hepatitis and blood donors in Ibadan. Blood samples were collected from consented 176 subjects who tested positive to HCV IgM antibodies, including 99 patients with clinical hepatitis and 77 apparently healthy blood donors. Viral RNA was extracted from blood samples, while presence of HCV was tested by amplifying the NS5B gene using polymerase chain reaction (PCR)...
February 2018: Archives of basic and applied medicine
M A Wahab, A Shehta, M Elshoubary, A M Yassen, M Elmorshedi, T Salah, A M Sultan, O Fathy, W R Elsarraf, U Shiha, K Zalata, A N Elghawalby, M Eldesoky, A Monier, R Said, A M Elsabagh, M Ali, A Kandeel, U Abdalla, M Aboelella, M Elsadany, E E Abdel-Khalek, A Marwan, F M ElMorsi, R Adly
BACKGROUND: Living donor liver transplantation (LDLT) is considered a safe alternative to deceased donor liver transplantation (DDLT). In Egypt, DDLT program is still awaited, making LDLT the only hope for patients with end-stage liver disease, mainly due to chronic hepatitis C virus (HCV) infection. The current study is conducted to evaluate our experience of LDLT and discuss the lessons learned from 500 consecutive cases in HCV area. METHODS: We reviewed the data of patients who underwent LDLT at Gastrointestinal Surgery Center, Mansoura University during the period between May 2004 and March 2017...
June 2018: Transplantation Proceedings
Nejat Siraj, Oliver Okoth Achila, John Issac, Efrem Menghisteab, Maedn Hailemariam, Semere Hagos, Yosan Gebremeskel, Daniel Tesfamichael
BACKGROUND: Blood transfusion is associated with several risks particularly exposure to blood transfusion-transmissible infections (TTI), including: Hepatitis B virus (HBV), Hepatitis C virus (HCV), Human immunodeficiency virus (HIV) and Syphilis, among others. The threat posed by these blood-borne pathogens is disproportionately high in Sub-Saharan Africa (SSA). This fact underscores the need for continuous surveillance of TTIs in the region. Therefore, the study objectives were to evaluate the prevalence of TTIs and donor characteristics associated with positivity for TTIs at the National Blood Transfusion Center (NBTC) in Asmara, Eritrea...
June 7, 2018: BMC Infectious Diseases
Maria Grazia Rumi, Vito Di Marco, Massimo Colombo
Chronic infection with the hepatitis C virus (HCV) has long been the dominant complication of substitution therapy in patients with inherited blood disorders and the cause of anticipated death due to end-stage liver disease. In hemophilia, transmission of HCV with clotting factors concentrates started to be curbed in the mid-1980s following the adoption of procedures of virus inactivation of concentrates based on heat, whereas in the 1990s treatment of HCV infection with interferon monotherapy was attempted, however, with little success...
May 2018: Seminars in Liver Disease
Henshaw Uchechi Okoroiwu, Ifeyinwa Maryann Okafor, Enosakhare Aiyudubie Asemota, Dorathy Chioma Okpokam
BACKGROUND: Provision of constant and safe blood has been a public health challenge in Sub-Saharan Africa with high prevalence of transfusion-transmissible infections (TTIs). This study was aimed at determining the trend and seroprevalence of HBV, HCV, syphilis and HIV across the years within study among prospective blood donors at blood bank in University of Calabar Teaching Hospital (UCTH), Calabar, Nigeria. METHODS: A retrospective analysis of blood donor data from January 2005 to December 2016 was conducted in Blood Bank/Donor Clinic of University of Calabar Teaching Hospital, Calabar, Nigeria...
May 22, 2018: BMC Public Health
Karina Preußel, Ruth Offergeld
Background: Potential risks for transfusion-transmissible infections are identified by donor history questionnaires (DHQs), and donors with higher risks are deferred from donation. We assessed to which extent the currently used DHQs support the identification of infections among blood donors. Methods: Between 2006 and 2013, we analyzed data from notified HIV and HCV cases in the general population and positive blood donors in Germany. Logistic regressions were used to identify relevant infection risks...
April 2018: Transfusion Medicine and Hemotherapy
Kazi Abdus Salam, Richard Y Wang, Teresa Grandinetti, Valeria De Giorgi, Harvey J Alter, Robert D Allison
Erythrocytes bind circulating immune complexes (IC) and facilitate IC clearance from the circulation. Chronic hepatitis C virus (HCV) infection is associated with IC-related disorders. In this study we investigated the kinetics and mechanism of HCV and HCV-IC binding to and dissociation from erythrocytes. Cell culture-produced HCV was mixed with erythrocytes from healthy blood donors and erythrocyte-associated virus particles were quantified. Purified complement proteins, complement-depleted serum, and complement receptor antibodies were used to investigate complement-mediated HCV-erythrocyte binding...
May 9, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Mohammed Alaidarous, Ranjay K Choudhary, Mohamed I Waly, Shabir Mir, Abdulaziz Bin Dukhyil, Saeed S Banawas, Bader M Alshehri
BACKGROUND: Few studies discussed the prevalence of TTIs in Saudi donor blood samples. Thus, this study investigated the prevalence of hepatitis B virus (HBV), hepatitis C virus (HCV), human immunodeficiency virus (HIV), human T-lymphotropic virus (HTLV), syphilis and malaria in such samples to determine the efficacy of conducting serological and NATs on blood donors at King Khalid General Hospital in Majmaah, Saudi Arabia. METHODS: A total of 3028 donated blood units were collected from August 2015 to March 2017...
April 24, 2018: Journal of Infection and Public Health
King-Wah Chiu, Toshiaki Nakano, Kuang-Den Chen, Tsung-Hui Hu, Chih-Che Lin, Li-Wen Hsu, Chao-Long Chen, Shigeru Goto
The aim of this study is to elucidate the biogenetic modification of donor and recipient interleukin-28B (IL-28B) genotypes in liver graft biopsies after living donor liver transplantation (LDLT) for chronic hepatitis C virus- (HCV-) related, end-stage liver disease. Fifty liver graft biopsies were collected from recipients during LDLT treatment for HCV-related, end-stage liver disease. DNA was extracted from all 50 liver tissues, and the IL-28B single-nucleotide polymorphisms (SNPs) rs8099917 and rs12979860 were studied for allelic discrimination by real-time PCR analysis...
2018: BioMed Research International
Aseem K Tiwari, Gunjan Bhardwaj, Ravi C Dara, Dinesh Arora, Geet Aggarwal, Richa Bhargava, Kaushal Madan
INTRODUCTION: Post-donation counselling informs donors of unusual test results. Timely notification and counselling regarding their Transfusion Transmitted Infection (TTI) status is necessary for early clinical intervention in the donor and reducing risk of transmission. We share our experience with respect to Hepatitis B (HBV) and Hepatitis C (HCV) positive donors who were counselled and followed-up for clinical outcome. MATERIALS AND METHODS: It was prospective 2-year study in TTI positive blood donors...
April 13, 2018: Transfusion and Apheresis Science
Muhammad Anwar, Qamar Jamal, Waqaruddin Ahmed
Objective: To assess the Histological alteration of liver in asymptomatic HCV PCR positive family blood donors. Methods: This is a prospective cross sectional study carried out at Blood Transfusion Services, Clinical & Molecular Laboratory and Pakistan Health Research Council, Jinnah Postgraduate Medical Centre, Karachi from January 2011 to December 2016. One hundred thirteen (113) Anti HCV and HCV RNA positive family blood donors with normal or slightly raised ALT during three consecutive bimonthly visits were included...
January 2018: Pakistan Journal of Medical Sciences Quarterly
Xiao-Xiao Wang, Xiao-Ben Pan, Jin-Chao Han, Xu Cong, Qian Jin, Xiang-Sha Kong, Lai Wei, Bo Feng
BACKGROUND: Higher hepatitis B surface antigen (HBsAg) facilitates hepatitis C virus (HCV) clearance in patients with hepatitis B virus (HBV)/HCV co-infection. We investigated the effect of exogenous HBsAg on the inhibition of HCV replication mediated by natural killer (NK) cells. METHODS: After isolated from peripheral blood of 42 chronic hepatitis B (CHB) patients and 16 healthy individuals, NK cells were co-cultured with HCV-infected Huh7 cells, respectively, with or without HBsAg...
March 26, 2018: Hepatobiliary & Pancreatic Diseases International: HBPD INT
Sarina Ravens, Julia Hengst, Verena Schlapphoff, Katja Deterding, Akshay Dhingra, Christian Schultze-Florey, Christian Koenecke, Markus Cornberg, Heiner Wedemeyer, Immo Prinz
Human γδ T cells can contribute to clearance of hepatitis C virus (HCV) infection but also mediate liver inflammation. This study aimed to understand the clonal distribution of γδ T cells in peripheral blood of chronic HCV patients and following HCV clearance by interferon-free direct-acting antiviral drug therapies. To this end, γδ T cell receptor (TCR) repertoires were monitored by mRNA-based next-generation sequencing. While the percentage of Vγ9+ T cells was higher in patients with elevated liver enzymes and a few expanded Vδ3 clones could be identified in peripheral blood of 23 HCV-infected non-cirrhotic patients, overall clonality and complexity of γδ TCR repertoires were largely comparable to those of matched healthy donors...
2018: Frontiers in Immunology
Wei-Wei Cao, Rong-Rong Zhou, Xinghua Ou, Ling-Xi Shi, Chao-Qi Xiao, Ting-Yin Chen, Hua Tan, Xue-Gong Fan, Bi-Juan Li, Ning Li
BACKGROUND: Human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV) and Treponema pallidum (TP) infections are considered classic transfusion-transmissible infections (TTIs). Few data are available about the prevalence of TTIs in patients before blood transfusion in China. This study aimed to investigate the seroprevalence of four TTIs among patients before blood transfusion in Xiangya Hospital Central South University, China. METHODS: From 2011 to 2016, 442,121 hospitalized patients before possible blood transfusion were tested for hepatitis B surface antigen (HBsAg), anti-HCV, syphilis antibody (anti-TP) and anti-HIV...
April 2, 2018: BMC Infectious Diseases
Maciej Janiak, Kamila Caraballo Cortés, Karol Perlejewski, Dorota Kubicka-Russel, Piotr Grabarczyk, Urszula Demkow, Marek Radkowski
The infection with more than one hepatitis C virus (HCV) genotype especially in subjects with a high risk of multiple HCV exposures has been demonstrated. The role of HCV mixed-genotype infection in viral persistence and treatment effect is not fully understood. The prevalence of such infection varies greatly depending on the technique used for genotype determination and studied population. Next-generation sequencing (NGS) which is suitable for extensive analysis of complex viral populations is a method of choice for studying mixed infections...
March 29, 2018: Advances in Experimental Medicine and Biology
Tekalign Deressa, Wubet Birhan, Bamlaku Enawgaw, Molla Abebe, Habtamu Wondiferaw Baynes, Mekuria Desta, Betelihem Terefe, Mulugeta Melku
BACKGROUND: Transfusion-transmissible infections (TTIs) pose a significant challenge for the availability and safety of blood transfusion. The aim of this study was to investigate the prevalence and risk factors for TTIs among blood donors in North Shewa zone, central North Ethiopia. METHODS: A retrospective survey of blood donors' medical records was conducted from April 2014 to June 2017 to assess the presence of hepatitis B virus (HBV), hepatitis C virus (HCV), human immunodeficiency virus (HIV), and syphilis infections...
2018: PloS One
You-Wen Tan, Yan Tao, Long-Gen Liu, Yun Ye, Xin-Bei Zhou, Li Chen, Cong He
AIM: To understand the prevalence of hepatitis C virus (HCV) infection in blood donors over a nearly 27-year interval and to explore the factors that affect the outcome of HCV infection. METHODS: A retrospective and cross-sectional study was conducted. The participants, mostly plasma donors, were selected from three administrative villages in the Jiangsu province in Eastern China. A questionnaire was administered among the villagers who had a history of blood donation from the late 1980s to the early 1990s...
March 21, 2018: World Journal of Gastroenterology: WJG
Kamila Caraballo Cortes, Magdalena Rosińska, Maciej Janiak, Małgorzata Stępień, Osvaldo Zagordi, Karol Perlejewski, Sylwia Osuch, Agnieszka Pawełczyk, Iwona Bukowska-Ośko, Rafał Płoski, Piotr Grabarczyk, Tomasz Laskus, Marek Radkowski
Molecular characterization of early hepatitis C virus (HCV) infection remains rare. Ten out of 78 patients of a hematology/oncology center were found to be HCV RNA positive two to four months after hospitalization. Only two of the ten patients were anti-HCV positive. HCV hypervariable region 1 (HVR1) was amplified in seven patients (including one anti-HCV positive) and analyzed by next generation sequencing (NGS). Genetic variants were reconstructed by Shorah and an empirically established 0.5% variant frequency cut-off was implemented...
2018: PloS One
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