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https://www.readbyqxmd.com/read/28436333/epidemiology-of-hepatitis-c-infection-in-pakistan-current-estimate-and-major-risk-factors
#1
Aiman Arshad, Usman Ali Ashfaq
In Pakistan, hepatitis C virus (HCV) is a major healthcare problem, with acute and chronic infections responsible for liver damage, cirrhosis, and hepatocellular carcinoma. Under the Human Development Index of the United Nations, Pakistan is ranked 134th of 174 countries due to its poor educational and health standards. This study was designed to study HCV and its genotype prevalence in different cities and provinces of Pakistan and describe the major routes of HCV transmission. Literature searches were performed in PubMed, Mendeley, and Google Scholar...
2017: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/28434852/p-%C3%A2-falciparum-malaria-prevalence-among-blood-donors-in-bamako-mali
#2
B Kouriba, A B Diarra, I Douyon, D T Diabaté, F Kamissoko, H Guitteye, M Baby, M A Guindo, O K Doumbo
AIM: Malaria parasite is usually transmitted to humans by Anopheles mosquitoes but it can also be transmitted through blood transfusion. Usually malaria transmission is low in African urban settings. In West Africa where the P. falciparum is the most predominant malaria species, there are limited measures to reduce the risk of blood transfusion malaria. The aim of this study was to evaluate the prevalence of P. falciparum malaria carriage among blood donors in the National Blood Center of Bamako, capital city of Mali...
April 20, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28433405/epidemiology-of-toxoplasma-gondii-among-blood-donors-in-iran-a-systematic-review-and-meta-analysis
#3
REVIEW
Akram Mansouri, Mohammad Reza Adhami Mojarad, Gholamreza Badfar, Lila Abasian, Shoboo Rahmati, Wesam Kooti, Mohammad Hossein YektaKooshali, Ali Soleymani, Milad Azami
INTRODUCTION: Asymptomatic Toxoplasma gondii transmitted from blood donors to receiving patients has become a concern. Numerous articles have been published on the epidemiology of T. gondii in blood donors in Iran and a systematic review of the results shows quite different findings, hence this study was conducted to determine the seroprevalence of T. gondii in Iranian blood donors using meta-analysis. METHODS: We searched for epidemiological studies that were published until July 2016 in eight English databases including: Scopus, PubMed, Ovid, Science Direct, Cochrane, Web of Science, Springer, Wiley Online Library, and four Iranian databases: Magiran, Iranmedex, SID and Medlib as well as Google Scholar...
March 29, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28430958/survey-of-institutional-policies-for-provision-of-cmv-safe-blood-in-ontario
#4
Laura Finlay, Pria Nippak, James Tiessen, Winston Isaac, Jeannie Callum, Christine Cserti-Gazdewich
Objectives: Debate continues on whether leukoreduction alone (LR) is sufficiently similar to leukoreduced cellular products drawn from cytomegalovirus (CMV)-seronegative (SN) donors to minimize the risk of transfusion-transmitted CMV (TT-CMV). We sought to determine the policy, inventory, and practice landscape of the province for TT-CMV mitigation. Methods: A web-based survey was distributed to hospitals in Ontario by Canadian Blood Services to collect data on their policies with respect to TT-CMV prevention...
November 1, 2016: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28422774/squamous-cellular-carcinoma-antigen-serum-determination-as-a-biomarker-of-barrett-esophagus-and-esophageal-cancer-a-phase-iii-study
#5
Gemma Maddalo, Matteo Fassan, Romilda Cardin, Marika Piciocchi, Filippo Marafatto, Massimo Rugge, Giovanni Zaninotto, Caterina Pozzan, Carlo Castoro, Alberto Ruol, Alessandra Biasiolo, Fabio Farinati
GOAL: To evaluate the potential role of the determination of the immunocomplexed form of squamous cell carcinoma antigen [SCCA-immunoglobulin (Ig)M] for the screening of Barrett esophagus (BE) and esophageal adenocarcinoma (EAC). BACKGROUND: The cost-effectiveness of surveillance in BE is still debated and the use of biomarkers in screening and surveillance still not recommended. No information is available regarding SCCA-IgM determination in BE. STUDY: SCCA-IgM levels were determined (enzyme-linked immunosorbent assay) in 231 patients prospectively recruited, 71 with BE, 53 with EAC, and 107 controls, including 42 blood donors and 65 patients with gastroesophageal reflux...
April 18, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28422005/blood-donor-screening-for-west-nile-virus-wnv-revealed-acute-usutu-virus-usuv-infection-germany-september-2016
#6
Daniel Cadar, Philipp Maier, Susanne Müller, Julia Kress, Michael Chudy, Alexandra Bialonski, Alexander Schlaphof, Stephanie Jansen, Hanna Jöst, Egbert Tannich, Stefan Runkel, Walter E Hitzler, Gabriele Hutschenreuter, Martina Wessiepe, Jonas Schmidt-Chanasit
Between 1 June and 31 December 2016, 13,023 blood donations from the University Hospital Aachen in Germany were routinely screened for West Nile virus (WNV) RNA using the cobas TaqScreen WNV Test. On 28 September 2016, one blood donor was tested positive. Subsequent analysis revealed an acute Usutu virus (USUV) infection. During the ongoing USUV epizootics in Germany, blood transfusion services, public health authorities and clinicians should be aware of increased human USUV infections.
April 6, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/28421625/factors-affecting-platelet-concentration-in-platelet-concentrates-from-canine-blood-donors
#7
J S Raleigh, K E Jandrey, J Burges, M S Kent
BACKGROUND: Physiologic factors in dogs that might contribute to enhanced platelet yield in platelet concentrates (PCs) are largely unknown. OBJECTIVE: To determine whether individual differences in weight, age, preprocessing blood chemistry, and CBC variables predict the final platelet concentrations in PCs. Our hypotheses were (1) increased lipemic indices would be positively associated with increased platelet concentrations in PCs and (2) increased preprocessing platelet concentrations would be associated with higher platelet concentrations in the PCs...
April 19, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28412024/prevalence-of-bacterial-contamination-in-platelet-concentrates-at-the-national-center-of-blood-transfusion-mexico
#8
G Ibáñez-Cervantes, J M Bello-López, V Fernández-Sánchez, C A Domínguez-Mendoza, L I Acevedo-Alfaro
OBJECTIVES: Most common bacterial sepsis associated with transfusion is caused by contaminated Platelet Concentrates (PC). The screening of PC to detect bacterial contamination is obligatory in Mexico, and it is carried out in quality control programs. In Mexico, the identification and molecular characterization of bacterial contaminants to detect contamination sources have not been implemented due to high costs; however, it is an actual current need. MATERIAL AND METHODS: One hundred PC were randomly selected and microbiologically analyzed...
April 12, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28410349/zika-virus-and-assisted-reproduction
#9
Christina N Cordeiro, Rashda Bano, Chantel I Washington Cross, James H Segars
PURPOSE OF REVIEW: Due to the fact that the Zika virus can be sexually transmitted, there is a potential risk for disease transmission at several stages of assisted reproduction. Such a possibility poses a serious challenge to couples pursing fertility with reproductive technologies. Here, we discuss what is known regarding Zika virus infection with respect to sexual transmission and correlate this knowledge with recent recommendations in the realm of infertility treatment. RECENT FINDINGS: Zika virus can be transmitted from infected men and women through vaginal, oral or anal intercourse...
April 12, 2017: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28401619/non-compliance-to-infectious-disease-deferral-criteria-among-hong-kong-s-blood-donors
#10
S S Lee, E K H Cheung, J N S Leung, C K Lee
BACKGROUND AND OBJECTIVES: Donor screening alone cannot eliminate the risk of transfusion-transmitted HIV infection. Donor deferral according to established criteria is a supplemental strategy, which has focused largely on men who have sex with men (MSM). A study was conducted to determine the compliance of non-MSM donors with such criteria and examine its implications on blood safety. MATERIALS AND METHODS: Chinese donors who have just donated blood at blood donor centres in Hong Kong were recruited...
April 11, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28383341/generating-autologous-hematopoietic-cells-from-human-induced-pluripotent-stem-cells-through-ectopic-expression-of-transcription-factors
#11
Yongsung Hwang, Hal E Broxmeyer, Man Ryul Lee
PURPOSE OF REVIEW: Hematopoietic cell transplantation (HCT) is a successful treatment modality for patients with malignant and nonmalignant disorders, usually when no other treatment option is available. The cells supporting long-term reconstitution after HCT are the hematopoietic stem cells (HSCs), which can be limited in numbers. Moreover, finding an appropriate human leukocyte antigen-matched donor can be problematic. If HSCs can be stably produced in large numbers from autologous or allogeneic cell sources, it would benefit HCT...
April 5, 2017: Current Opinion in Hematology
https://www.readbyqxmd.com/read/28381523/human-milk-oligosaccharide-composition-predicts-risk-of-necrotising-enterocolitis-in-preterm-infants
#12
Chloe A Autran, Benjamin P Kellman, Jae H Kim, Elizabeth Asztalos, Arlin B Blood, Erin C Hamilton Spence, Aloka L Patel, Jiayi Hou, Nathan E Lewis, Lars Bode
OBJECTIVE: Necrotising enterocolitis (NEC) is one of the most common and often fatal intestinal disorders in preterm infants. Markers to identify at-risk infants as well as therapies to prevent and treat NEC are limited and urgently needed. NEC incidence is significantly lower in breast-fed compared with formula-fed infants. Infant formula lacks human milk oligosaccharides (HMO), such as disialyllacto-N-tetraose (DSLNT), which prevents NEC in neonatal rats. However, it is unknown if DSLNT also protects human preterm infants...
April 5, 2017: Gut
https://www.readbyqxmd.com/read/28380401/microlens-topography-combined-with-vascular-endothelial-growth-factor-induces-endothelial-differentiation-of-human-mesenchymal-stem-cells-into-vasculogenic-progenitors
#13
Marek Kukumberg, Jia Yi Yao, Dawn J H Neo, Evelyn K F Yim
Cell therapy for vascular damage has been showing promises as alternative therapy for endothelial dysfunctions since the discovery of the endothelial progenitor cells (EPCs). However, isolated EPCs from peripheral blood yield low cell amounts and alternative cell source must be explored. The aim of this study was to investigate the influence of topography on the endothelial differentiation of an alternative cell source - human mesenchymal stem cells (hMSCs) from bone marrow. Utilizing the MultiARChitecture (MARC) chip, a systematic screening of variety of patterned surfaces and different medium compositions was performed...
July 2017: Biomaterials
https://www.readbyqxmd.com/read/28370177/blood-safety-implications-of-donors-using-hiv-pre-exposure-prophylaxis
#14
C R Seed, H Yang, J F Lee
HIV pre-exposure prophylaxis (PrEP) is the use of one or more antiretroviral medications (in combination) to prevent HIV infection. The most commonly used PrEP medication (Truvada(®) , Gilead Sciences, Inc.) acts by inhibiting HIV-1 reverse transcriptase. If someone who is using PrEP unknowingly becomes HIV infected (termed 'PrEP breakthrough infection'), there may be suppressed viral replication resulting in a virus level undetectable by the most sensitive HIV NAT. Failure to seroconvert and seroreversion (loss of previously detectable HIV antibodies) have also both been observed with 2nd, 3rd and 4th generation screening immunoassays, as well as Western blot assays...
March 31, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28369973/persistent-symptomatic-parvovirus-b19-infection-with-severe-thrombocytopenia-transmitted-by-red-blood-cell-transfusion-containing-low-parvovirus-b19-dna-levels
#15
Keiki Nagaharu, Yuka Sugimoto, Yuji Hoshi, Takanori Yamaguchi, Ryugo Ito, Keiji Matsubayashi, Keiki Kawakami, Kohshi Ohishi
BACKGROUND: Transfusion-mediated human parvovirus B19 (PVB19) infection is rare but often causes severe hematologic disorders. In Japan, routine blood donor screening for PVB19 antigen (detection sensitivity, 10(6.4) IU/mL) using a chemiluminescent enzyme immunoassay (CLEIA) was introduced in 2008. However, there is no consensus on the minimal infectious dose of PVB19 permissible for red blood cells (RBCs). CASE REPORT: A 64-year-old man, who had received hemodialysis for diabetic nephropathy for 5 years, underwent an RBC transfusion for anemia caused by hemorrhagic enterocolitis...
April 2, 2017: Transfusion
https://www.readbyqxmd.com/read/28369969/a-rare-potentially-life-threatening-presentation-of-passenger-lymphocyte-syndrome
#16
Thomas J Gniadek, Andrea M McGonigle, R Sue Shirey, Patricia A Brunker, Michael Streiff, Benjamin Philosophe, Evan M Bloch, Paul M Ness, Karen E King
BACKGROUND: Passenger lymphocyte syndrome occurs when donor lymphocytes are transplanted with a solid organ and produce alloantibodies that react with antigens on the recipient's red blood cells (RBCs). Typically, passenger lymphocyte syndrome presents as immunoglobulin G antibody-mediated, extravascular hemolytic anemia with reticulocytosis. Often, the donor was alloimmunized before transplantation. CASE REPORT: A 34-year-old Group O, D+ man with a negative antibody screen received a liver transplant from a Group O, D- donor...
May 2017: Transfusion
https://www.readbyqxmd.com/read/28363468/donor-mesenchymal-stem-cells-home-to-maternal-wounds-after-transamniotic-stem-cell-therapy-trascet-in-a-rodent-model
#17
Christopher D Graham, Hester F Shieh, Joseph A Brazzo, David Zurakowski, Dario O Fauza
PURPOSE: Transamniotic stem cell therapy (TRASCET) with amniotic fluid-derived MSCs (afMSCs) has emerged experimentally as a practical treatment strategy for congenital anomalies. In this study, we sought to determine whether afMSCs migrate to the mother following TRASCET. METHODS: Pregnant rat dams were divided into three groups. Two groups received volume-matched injections into all amniotic cavities of either a suspension of afMSCs labeled with a luciferase reporter gene or the luciferase protein alone...
March 18, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28362321/early-assessment-of-colorectal-cancer-by-quantifying-circulating-tumor-cells-in-peripheral-blood-ect2-in-diagnosis-of-colorectal-cancer
#18
Chih-Jung Chen, Wen-Wei Sung, Hung-Chang Chen, Yi-Jye Chern, Hui-Ting Hsu, Yueh-Min Lin, Shu-Hui Lin, Konan Peck, Kun-Tu Yeh
Circulating tumor cells (CTCs) in peripheral blood is an indication of poor prognosis for patients with different cancer types. However, most of the available technologies for detecting CTCs show low sensitivity and specificity. Therefore, we attempted to find an alternative marker for CTCs of colorectal cancer. We have directly extracted RNA from CTCs contained in 1.5 mL peripheral blood from 90 colorectal cancer patients and 151 healthy donors, and screened these samples for candidate marker genes by nested real-time quantitative polymerase chain reaction (PCR)...
March 31, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28345397/hepatitis-b-virus-prevalence-in-rural-areas-in-south-west-chad
#19
Julian Suesstrunk, Fédéric Berniba Djongali
In Chad, hepatitis B virus (HBV) is thought to have a high prevalence and is consequently responsible for numerous acute and long-term complications. It is often detected during screening in potential blood donors. However, no general population-based study on the prevalence of hepatitis B has been performed. The aim of this study was to gain an impression of the HBV prevalence in rural areas in south-west Chad. A total of 1309 individuals (745 boys/men, 564 girls/women) with a median age of 15 years (age range, 6-81 years) were screened for the presence of the hepatitis B antigen (HBsAG)...
January 1, 2017: Tropical Doctor
https://www.readbyqxmd.com/read/28344768/an-end-to-lifetime-blood-donation-ban-in-israel-for-msm-would-be-a-major-step-toward-a-science-based-policy-that-reduces-stigma
#20
EDITORIAL
Sean Cahill, Timothy Wang
In recent years, countries around the world have revised their blood donation policies regarding gay and bisexual men, and other men who have sex with men (MSM). The United States lifted the lifetime ban on MSM from donating blood in 2015, replacing it with a 1 year deferral policy allowing MSM to donate if they abstain from sex for 12 months. Other countries followed suit, while Italy and Spain have implemented deferral policies based on individual risk assessments regardless of sexual orientation. If Israel were to adopt a one year deferral policy for MSM, as recommended by Drs...
2017: Israel Journal of Health Policy Research
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