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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
Calleb George Onyango, Lilian Ogonda, Bernard Guyah, Peter Okoth, Clement Shiluli, Felix Humwa, Vallarie Opollo
OBJECTIVE: Since the implementation of a series of blood donation safety improvements in Kenya, information about seroprevalence and determinants of transfusion transmissible infections among voluntary blood donors especially in high HIV burden regions of Homabay, Kisumu and Siaya counties remain scanty. A cross-sectional study examining HIV, syphilis, hepatitis B and C virus sero-markers and associated determinants was conducted among voluntary blood donors. Their demographic characteristics and previous risk exposure were recorded in a pre-donation questionnaire, while blood samples collected were screened for hepatitis B, hepatitis C, human immunodeficiency viruses by ELISA and RPR (syphilis), then confirmed using CMIA...
March 12, 2018: BMC Research Notes
Johnny Amer, Ahmad Salhab, Sarit Doron, Gilles Morali, Rifaat Safadi
Hepatic stellate cells (HSCs) are a central fibrogenic cell type that contributes to collagen accumulation during chronic liver disease. Peripheral blood lymphocytes from HCV patients are phagocytized by HSCs and induce their differentiation. This study aimed to characterize HSCs differentiation using a flow cytometry tool for fibrosis scoring. NK cells from healthy donors and from patients with chronic HCV with various severities of fibrosis were co-cultured with a human HSC line (LX2). LX2 phagocytosis of NK cells were stained for NK cells (CD45/CD56/CD3) and NK activation marker (CD107a) as well as INF-γ, apoptosis (Annexin-V) and α-smooth-muscle-actin (αSMA, as a marker of LX2 activation)...
March 8, 2018: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
Akanksha Rawat, Preeti Diwaker, Priyanka Gogoi, Bharat Singh
Background & objectives: Transfusion-transmitted infections (TTIs) are the major problem associated with blood transfusion. Accurate estimates of risk of TTIs are essential for monitoring the safety of blood supply. The present study was undertaken to determine the percentage of voluntary donors (VDs) and replacement donors (RDs) and also, to estimate and compare the seroprevalence and changing trends of TTIs amongst VDs and RDs in a regional blood transfusion centre in north India...
November 2017: Indian Journal of Medical Research
Y Grégoire, M Germain, G Delage
BACKGROUND AND OBJECTIVES: Since 25 May 2010, all donors at our blood centre who tested false-positive for HIV, HBV, HCV or syphilis are eligible for re-entry after further testing. Donors who have a second false-positive screening test, either during qualification for or after re-entry, are deferred for life. This study reports on factors associated with the occurrence of such deferrals. MATERIALS AND METHODS: Rates of second false-positive results were compared by year of deferral, transmissible disease marker, gender, age, donor status (new or repeat) and testing platform (same or different) both at qualification for re-entry and afterwards...
March 6, 2018: Vox Sanguinis
J Reinier F Narvaez, Jing Nie, Katia Noyes, Mary Leeman, Liise K Kayler
Understanding risk factors for deceased-donor kidney non-transplantation is important since discard rates remain high. We analyzed DonorNet® data of consecutive deceased-donor non-mandatory share primary kidney-only offers to adult candidates at our center and beyond between July 1, 2015 and March 31, 2016 for donor- and system-level risk factors of discard, defined as non-transplantation at our or subsequent transplant centers. Exclusions were HCV/HBV, blood type AB, and donor< 1 year based on low candidate waitlist size...
March 2, 2018: American Journal of Transplantation
J Manuel Bello-López, Cristina Castañeda-García, Celerino Muñoz-Estrada, Antonio José Machorro-Peréz
INTRODUCTION: Quality control for the detection of infectious markers in blood banks is a necessary activity to ensure the accuracy of donor screening results. Considering that in Mexico blood safety is one of the goals of the National Action Programs, it is essential to evaluate banks through an External Quality Control Program. OBJECTIVE: To analyze one of the evaluations that showed the greatest participation (2014-2/lot46) of banks in the Mexican Republic in the detection of transfusion-transmitted diseases...
January 11, 2018: Transfusion and Apheresis Science
Zhengang Shan, Jieting Huang, Qiao Liao, Ke Huang, Min Wang, Ru Xu, Xi Tang, Weiyun Zhang, Kenrad Nelson, Yongshui Fu, Chengyao Li, Xia Rong
BACKGROUND: Natural killer (NK) cells are critical components in innate immune response to viral infection. Killer cell immunoglobulin-like receptors (KIRs) are involved in regulating the balance of activation or inhibitory function of NK cells. However, the association of KIRs with the spontaneous clearance of hepatitis C virus (HCV) remains unclear in the Chinese population. STUDY DESIGN AND METHODS: A total of 407 HCV-seropositive voluntary blood donors were recruited, including 203 with spontaneous viral clearance and 204 with chronic infection...
February 15, 2018: Transfusion
Young-Chan Kwon, Keith Meyer, Guangyong Peng, Soumya Chatterjee, Daniel F Hoft, Ranjit Ray
A comprehensive strategy to control HCV infection needs a vaccine. Our phase I study with recombinant HCV E1/E2 EnvGPs as a candidate vaccine did not induce a strong immune response in volunteers. We analyzed the interactions of HCV EnvGPs with human monocyte derived macrophages as antigen presenting cells. HCV E2 induced immune regulatory cytokine IL-10 and sCD163 protein expression in macrophages from 7 of 9 blood donors tested. Further, HCV E2 enhanced Stat3 and suppressed Stat1 activation, reflecting macrophage polarization towards M2 phenotype...
February 14, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Masoud Behzadifar, Hassan Abolghasem Gorji, Nicola Luigi Bragazzi
One of the major infections transmitted through the bloodstream is hepatitis C virus (HCV) infection. Patients with thalassemia requiring frequent blood transfusions are at risk for HCV. Therefore, this study was conducted to determine the incidence of HCV in thalassemia patients in Iran. The following databases were searched: ISI/Web of Science, Embase, Pubmed/MEDLINE via Ovid, Scopus, as well as Iranian databases (Magiran, Irandoc and SID) from January 2000 to July 2017. The quality of the studies was evaluated using the 22-item STROBE checklist...
February 6, 2018: Archives of Virology
Elissa K Butler, Jeffrey McCullough
BACKGROUND: Blood safety and transfusion-transmitted infections (TTIs) are a major concern in low-resource areas. Laboratory screening of donors, a key contributor to blood safety, is usually done by enzyme-linked immunosorbent assay (ELISA) methods, which use expensive reagents and necessitate complex instruments and sophisticated laboratory staff. Rapid diagnostic tests (RDTs) are less expensive and easier to perform but have less sensitivity. Pathogen reduction technology (PRT) reduces transfusion transmission of malaria and may be effective in decreasing other TTIs...
February 5, 2018: Transfusion
Salman Khazaei, Manoochehr Karami, Erfan Ayubi, Abolfazl Mohammadbeigi, Azim Hasanbeigi, Kamyar Mansori, Mohammad Reza Mir-Shekar
Background: Hepatitis B virus (HBV) and hepatitis C virus (HCV) infections are the main causes of severe liver failure worldwide. This study was conducted to evaluate the incidence rate and trend of these infections over six successive years from 2008 to 2013 in Ilam Province, western Iran. Methods: We studied the registered data of HBV and HCV based on the National Notifiable Diseases Surveillance System in Ilam Province from 2008 to 2013. Incidence rate per 100,000 populations was estimated for HBV and HCV infections through location, years and age groups of patients...
2018: Caspian Journal of Internal Medicine
Daniele Rocha, Elisabete Andrade, Daniela T Godoy, Marcela Fontana-Maurell, Elaine Costa, Marisa Ribeiro, Antônio G P Ferreira, Rodrigo Brindeiro, Amilcar Tanuri, Patrícia Alvarez
BACKGROUND: The history of the development and implementation of the Brazilian nucleic acid testing (NAT) platform to detect and discriminate among human immunodeficiency virus (HIV), hepatitis C virus (HCV), and hepatitis B virus (HBV) infections in blood donors is described here. The results for the sensitivity, reproducibility, and NAT yield of the platform since program implementation are provided. STUDY DESIGN AND METHODS: The Brazilian NAT HIV, HCV, and HBV kit was developed and evaluated with regard to analytical sensitivity, specificity, intralot and interlot reproducibility, interfering substances, and genotype and diagnostic sensitivity...
January 30, 2018: Transfusion
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