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https://www.readbyqxmd.com/read/29138642/observation-of-blood-donor-recipient-malaria-parasitaemia-patterns-in-a-malaria-endemic-region
#1
Jamilu Abdullahi Faruk, Gboye Olufemi Ogunrinde, Aisha Indo Mamman
Background: Asymptomatic malaria parasitaemia has been documented in donor blood in West Africa. However, donated blood is not routinely screened for malaria parasites (MPs). The present study therefore aimed to document the frequency of blood transfusion-induced donor-recipient malaria parasitaemia patterns, in children receiving blood transfusion in a tertiary health-centre. Methodology: A cross-sectional, observational study involving 140 children receiving blood transfusion was carried out...
2017: Journal of Tropical Medicine
https://www.readbyqxmd.com/read/29133921/metabolomics-identifies-metabolite-biomarkers-associated-with-acute-rejection-after-heart-transplantation-in-rats
#2
Feng Lin, Yi Ou, Chuan-Zhong Huang, Sheng-Zhe Lin, Yun-Bin Ye
The aim of this study was to identify metabolite biomarkers associated with acute rejection after heart transplantation in rats using a LC-MS-based metabolomics approach. A model of heterotopic cardiac xenotransplantation was established in rats, with Wistar rats as donors and SD rats as recipients. Blood and cardiac samples were collected from blank control rats (Group A), rats 5 (Group B) and 7 days (Group C) after heart transplantation, and pretreated rats 5 (Group D) and 7 days (Group E) post-transplantation for pathological and metabolomics analyses...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29114158/seroprevalence-of-toxoplasmosis-in-voluntary-blood-donors-of-puducherry-and-surrounding-districts-of-tamil-nadu
#3
Selvaraj Stephen, Jothimani Pradeep, Velmurugan Anitharaj, Venkatraman Janarthanam
Our objective is to study the seroprevalence of toxoplasmosis in the voluntary blood donors of Puducherry and surrounding districts of Tamil Nadu. A total of 275 healthy blood donors were screened for the presence of IgM and IgG antibodies to Toxoplasma gondii by ELISA test. Donor samples positive for IgM and/or IgG antibodies to T. gondii were subjected to IgG avidity ELISA. While, 54 out of 275 donors had IgG antibodies (19.66%), only one donor had IgM (0.36%) along with IgG. Among 54 IgG positive donors, only two had low avidity (3...
December 2017: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/29109771/selective-targeting-of-a-novel-vasodilator-to-the-uterine-vasculature-to-treat-impaired-uteroplacental-perfusion-in-pregnancy
#4
Natalie Cureton, Iana Korotkova, Bernadette Baker, Susan Greenwood, Mark Wareing, Venkata R Kotamraju, Tambet Teesalu, Francesco Cellesi, Nicola Tirelli, Erkki Ruoslahti, John D Aplin, Lynda K Harris
Fetal growth restriction (FGR) in pregnancy is commonly caused by impaired uteroplacental blood flow. Vasodilators enhance uteroplacental perfusion and fetal growth in humans and animal models; however, detrimental maternal and fetal side effects have been reported. We hypothesised that targeted uteroplacental delivery of a vasodilator would enhance drug efficacy and reduce the risks associated with drug administration in pregnancy. Phage screening identified novel peptides that selectively accumulated in the uteroplacental vasculature of pregnant mice...
2017: Theranostics
https://www.readbyqxmd.com/read/29100408/a-novel-fc-engineered-human-icam-1-cd54-antibody-with-potent-anti-myeloma-activity-developed-by-cellular-panning-of-phage-display-libraries
#5
Katja Klausz, Michael Cieker, Christian Kellner, Hans-Heinrich Oberg, Dieter Kabelitz, Thomas Valerius, Renate Burger, Martin Gramatzki, Matthias Peipp
To identify antibodies suitable for multiple myeloma (MM) immunotherapy, a cellular screening approach was developed using plasma cell lines JK-6L and INA-6 and human synthetic single-chain fragment variable (scFv) phage libraries. Isolated phage antibodies were screened for myeloma cell surface reactivity. Due to its binding characteristics, phage PIII-15 was selected to generate the scFv-Fc fusion protein TP15-Fc with an Fc domain optimized for FcγRIIIa binding. Various MM cell lines and patient-derived CD138-positive malignant plasma cells, but not granulocytes, B or T lymphocytes from healthy donors were recognized by TP15-Fc...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29100032/extracorporeal-human-whole-blood-in-motion-as-a-tool-to-predict-first-infusion-reactions-and-mechanism-of-action-of-immunotherapeutics
#6
Erika A K Fletcher, Mohamed Eltahir, Frida Lindqvist, Jonas Rieth, Gunilla Törnqvist, Justyna Leja-Jarblad, Sara M Mangsbo
First infusion reactions along with severe anaphylactic responses can occur as a result of systemic administration of therapeutic antibodies. The underlying mechanisms by which monoclonal antibodies induce cytokine release syndrome (CRS) can involve direct agonistic effects via the drug target, or a combination of target-engagement along with innate receptor interactions. Despite the wide variety of pathways and cells that can play a role in CRS, many currently used assays are devoid of one or more components that must be present for these responses to occur...
October 27, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29099150/expanded-carrier-screening-in-gamete-donors-of-venezuela
#7
Maria Teresa Urbina, Isaac Benjamin, Randolfo Medina, José Jiménez, Laura Trías, Jorge Lerner
OBJECTIVE: To discuss the implications of expanded genetic carrier screening for preconception purposes based on our practice. METHODS: One hundred and forty-three potential gamete donors aged 20-32 years old (µ=24, 127 females and 16 males), signed informed consent forms and were selected according to the REDLARA guidelines. Blood or saliva samples were examined by one of these genetic carrier screening methods: Genzyme screening for Cystic Fibrosis (CF), Fragile X and Spinal Muscular Atrophy (SMA); Counsyl Universal panel or Recombine Carrier Map...
November 3, 2017: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29084269/non-muscle-myosin-iib-myh10-is-required-for-epicardial-function-and-coronary-vessel-formation-during-mammalian-development
#8
Liam A Ridge, Karen Mitchell, Ali Al-Anbaki, Wasay Mohiuddin Shaikh Qureshi, Louise A Stephen, Gennadiy Tenin, Yinhui Lu, Irina-Elena Lupu, Christopher Clowes, Abigail Robertson, Emma Barnes, Jayne A Wright, Bernard Keavney, Elisabeth Ehler, Simon C Lovell, Karl E Kadler, Kathryn E Hentges
The coronary vasculature is an essential vessel network providing the blood supply to the heart. Disruptions in coronary blood flow contribute to cardiac disease, a major cause of premature death worldwide. The generation of treatments for cardiovascular disease will be aided by a deeper understanding of the developmental processes that underpin coronary vessel formation. From an ENU mutagenesis screen, we have isolated a mouse mutant displaying embryonic hydrocephalus and cardiac defects (EHC). Positional cloning and candidate gene analysis revealed that the EHC phenotype results from a point mutation in a splice donor site of the Myh10 gene, which encodes NMHC IIB...
October 30, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29082905/the-cost-effectiveness-of-predonation-screening-for-transfusion-transmissible-infections-using-rapid-test-kits-in-a-hospital-based-blood-transfusion-centre
#9
Adedoyin Owolabi Dosunmu, Akinsegun Abduljaleel Akinbami, Ayobami Kamal Ismail, Modupe Adebimpe Olaiya, Ebele Ifeyinwa Uche, Igbinoba Kingsley Aile
OBJECTIVE: Blood transfusion practice emphasises safety, efficacy and appropriate use. These require cost-effective programme management. This study focused on the cost of screening for transfusion transmissible infections (TTI). METHODS: This was a 1 year (2016) analysis of screening in a hospital-based transfusion centre. The cost of screening all blood donors by ELISA was compared to the cost of serial screening starting from rapid kit, taking into account, the estimated cost of blood bags prevented from discard after ELISA screening (attributable cost)...
July 2017: Nigerian Postgraduate Medical Journal
https://www.readbyqxmd.com/read/29081804/baseline-antibody-titre-against-salmonella-enterica-in-healthy-population-of-mumbai-maharashtra-india
#10
Rucha Patki, Sunil Lilani, Dhaneshwar Lanjewar
OBJECTIVE: The aim of this study was to establish a baseline titre for the population of Mumbai, Maharashtra, India. METHOD: Four hundred healthy blood donors, attending blood donation camps, were screened using a survey questionnaire. Widal tube agglutination test was performed on the diluted sera (with 0.9% normal saline) of blood donors, with final dilution ranging from 1 : 40 to 1 : 320. RESULTS: Out of 400 individuals providing samples, 78 (19...
2017: International Journal of Microbiology
https://www.readbyqxmd.com/read/29076164/nonhemolytic-passenger-lymphocyte-syndrome
#11
S Gerald Sandler, Suhua Han, Albert Langeberg, Cal Matsumoto, Thomas M Fishbein
BACKGROUND: An 8-month-old recipient of a liver segment transplant had anti-D detected for the first time in her Day 5 posttransplant plasma and anti-C detected for the first time in her Day 55 posttransplant plasma. The donor's plasma contained anti-C and anti-D. Clinical and laboratory findings established a diagnosis of passenger lymphocyte syndrome (PLS). Hemolysis did not occur, because the recipient's blood group phenotype was, by chance, D- C-. STUDY DESIGN AND METHODS: To evaluate contemporary practice for diagnosing PLS, we conducted a retrospective 10-year literature review...
October 26, 2017: Transfusion
https://www.readbyqxmd.com/read/29068084/regional-incidences-of-adult-t-cell-leukemia-lymphoma-with-cutaneous-involvement-in-japan
#12
Toshihisa Hamada, Hayato Nomura, Keiji Iwatsuki
Between 2008 and 2015, 462 newly-diagnosed adult T-cell leukemia/lymphoma (ATLL) patients with cutaneous involvement were found from the nationwide registry for Japanese patients with cutaneous lymphoma, of which 391 were selected for the study. They ranged in age from 28 to 93 years (median, 69 years), and included 215 men and 176 women (male : female ratio = 1.2). The 391 patients comprised 193 (50%) with smoldering type, 52 (13%) with chronic type, 44 (11%) with lymphoma type and 102 (26%) with acute type...
October 25, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/29059580/characteristics-of-peripheral-blood-nk-and-nkt-like-cells-in-euthyroid-and-subclinical-hypothyroid-women-with-thyroid-autoimmunity-experiencing-reproductive-failure
#13
Eva Miko, Matyas Meggyes, Katalin Doba, Nelli Farkas, Barbara Bogar, Aliz Barakonyi, Laszlo Szereday, Julia Szekeres-Bartho, Emese Mezosi
Thyroid autoimmunity (TAI) appears to play a crucial role in female infertility, recurrent pregnancy loss and IVF failure. Thyroid autoantibodies against thyroid peroxidase and thyroglobulin have been shown to represent an independent risk factor for infertility and miscarriage. Moreover, thyroxin hormone administration reduces the risk of obstetrical complications in TAI positive women. The aim of our present study was to investigate the immunological background of female infertility and recurrent pregnancy loss in euthyroid and subclinical hypothyroid women with TAI focusing on innate immunity...
September 28, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29057982/characterization-of-serum-mirnas-as-molecular-biomarkers-for-acute-stanford-type-a-aortic-dissection-diagnosis
#14
Zhenjun Xu, Qiang Wang, Jun Pan, Xia Sheng, Dongxia Hou, Hoshun Chong, Zhe Wei, Shasha Zheng, Yunxing Xue, Qing Zhou, Hailong Cao, Chen-Yu Zhang, Dongjin Wang, Xiaohong Jiang
Early and convenient diagnosis is urgently needed for acute Stanford type A aortic dissection (AAAD) patients due to its high mortality within the first 48 hours. Circulating microRNAs (miRNAs) are promising biomarkers of cardiovascular diseases, however, little is known about circulating miRNAs involved in AAAD. Here, the blood serum was sampled from 104 AAAD+ patients and 103 age-matched donors. Initial screening was conducted using the TaqMan Low Density Array followed by RT-qPCR confirmation. According to the two-phase selection and validation process, we found that miR-25, miR-29a and miR-155 were significantly elevated, while miR-26b was markedly decreased in AAAD+ serum samples compared with AAAD- individuals...
October 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29043965/japanese-encephalitis-virus-transmitted-via-blood-transfusion-hong-kong-china
#15
Vincent C C Cheng, Siddharth Sridhar, Shuk-Ching Wong, Sally C Y Wong, Jasper F W Chan, Cyril C Y Yip, Chi-Hung Chau, Timmy W K Au, Yu-Yan Hwang, Carol S W Yau, Janice Y C Lo, Cheuk-Kwong Lee, Kwok-Yung Yuen
Japanese encephalitis virus (JEV) is a mosquitoborne virus endemic to China and Southeast Asia that causes severe encephalitis in <1% of infected persons. Transmission of JEV via blood transfusion has not been reported. We report transmission of JEV via blood donation products from an asymptomatic viremic donor to 2 immunocompromised recipients. One recipient on high-dose immunosuppressive drugs received JEV-positive packed red blood cells after a double lung transplant; severe encephalitis and a poor clinical outcome resulted...
January 15, 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29043830/red-blood-cell-phenotype-prevalence-in-blood-donors-who-self-identify-as-hispanic
#16
Chelsea A Sheppard, Nicole L Bolen, Beth Eades, Gorka Ochoa-Garay, Mark H Yazer
Molecular genotyping platforms provide a quick, high-throughput method for identifying red blood cell units for patients on extended phenotype-matching protocols, such as those with sickle cell disease or thalassemia. Most of the antigen prevalence data reported are for non-Hispanic populations. Therefore, this study sought to determine the phenotype prevalence in a single blood center's Hispanic population and to compare those results with previously reported rates in non-Hispanic donor populations. We performed a retrospective review of all serologic and molecular typing from donors who self-reported as Hispanic...
September 2017: Immunohematology
https://www.readbyqxmd.com/read/29035462/cpg-odn-stimulation-in-population-screening-monoclonal-b-cell-lymphocytosis
#17
Helena Podgornik, Petra Bajuk, Tadej Furlan, Hermina Cibej, Ana D Kebe, Peter Cernelc
BACKGROUND: Synthetic CpG-oligodeoxynucleotides (CpG-ODN) induce proliferation in normal and malignant lymphocytes B (LyB). This effect is widely exploited in CLL conventional chromosome banding analysis (CBA), which has become reliable only after the cultivation of CLL LyB using CpG-ODN stimulation in combination with IL-2. Monoclonal B-cell lymphocytosis (MBL) differs from CLL mainly in clone size. Only cytogenetic data on recurrent chromosomal aberrations analyzed by fluorescence in situ hybridization (FISH) are available for population screening MBL (sMBL)...
October 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/29030857/funding-blood-safety-in-the-21st-century
#18
Luke Ifland, Evan M Bloch, John P Pitman
BACKGROUND: Since 2000, there has been an historic increase in international development assistance, including blood safety projects. The result has been increased blood donations and infectious disease screening in many beneficiary countries. A comprehensive examination of international development assistance for blood safety has yet to be completed. STUDY DESIGN AND METHODS: This report examines publicly available information, including donor agency websites and databases and data from the 2008 and 2012 World Health Organization Global Database on Blood Safety...
October 13, 2017: Transfusion
https://www.readbyqxmd.com/read/29020289/a-novel-human-pegivirus-hpgv-2-hhpgv-1-is-tightly-associated-with-hcv-infection-and-hcv-hiv-1-co-infection
#19
Haiying Wang, Zhengwei Wan, Ru Xu, Yujuan Guan, Nalin Zhu, Jianping Li, Zhiwei Xie, Aiqi Lu, Fuchun Zhang, Yongshui Fu, Shixing Tang
Background: HPgV-2 is a novel blood-borne human pegivirus that mainly infects HCV-infected subjects. We have investigated the prevalence of HPgV-2 in China, its association with HCV and HIV-1, and the impact on HCV viral load and liver damage. Methods: A cross-sectional study was conducted with both blood donors and HCV- and HIV-1-infected patients in Guangzhou, China. All subjects were screened for antiHPgV-2 and HPgV-2 RNA. Demographic and clinical information were obtained from electronic medical records...
August 19, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28994164/utilization-of-increased-risk-for-transmission-of-infectious-disease-donor-organs-in-solid-organ-transplantation-retrospective-analysis-of-disease-transmission-and-safety
#20
Linda Irwin, Camille N Kotton, Nahel Elias, Julie Palafox, Debra Basler, Sarah H Shao, William Lester, Xiaofeng Zhang, Brendan Kimball, Carrie Trencher, Jay A Fishman
The inadequate supply of transplantable organs necessitates new approaches to organ availability. Serologies and nucleic acid testing (NAT) for hepatitis C virus (HCV), hepatitis B virus (HBV), and human immunodeficiency virus (HIV) are used in microbiologic screening of potential organ donors. Organs from donors considered at "high risk" (Centers for Disease Control and Prevention, CDC 1994) or "increased risk" (U.S. Public Health Service, PHS 2013) for transmission of viral infection to recipients may provide an expanded source of organs for transplantation...
October 10, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
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