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Plasma donation

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https://www.readbyqxmd.com/read/29036928/plasma-mir-155-mir-203-and-mir-205-are-biomarkers-for-monitoring-of-primary-cutaneous-t-cell-lymphomas
#1
Nina Dusílková, Petra Bašová, Jindřich Polívka, Ondřej Kodet, Vojtěch Kulvait, Michal Pešta, Marek Trněný, Tomáš Stopka
Primary cutaneous T-cell lymphomas (CTCL) affect the skin and tend to transform and spread. CTCL involves primarily the Mycosis fungoides (MF) and more aggressive Sezary syndrome (SS). Oncogenic microRNAs (miRs) are stable epigenetic inhibitors often deregulated in the tumour and detectable as biomarkers in non-cellular fractions of peripheral blood. The tumour-specific expression of miR-155, miR-203, and miR-205 was shown to correctly diagnose CTCL. We herein asked whether these microRNAs can be used as plasma biomarkers for clinical CTCL monitoring...
October 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29036798/no-effect-on-the-short-term-of-a-decrease-in-blood-viscosity-on-insulin-resistance
#2
Agostino Gnasso, Michele Cacia, Claudio Cortese, Elena Succurro, Francesco Andreozzi, Claudio Carallo, Concetta Irace
BACKGROUND: Blood viscosity (BV) might influence glucose delivery to peripheral tissues and play an important role in insulin resistance and diabetes mellitus. However, the exact relationship between BV and insulin resistance is not yet clear. OBJECTIVES: Aim of the present study is to evaluate the effects of the acute reduction in BV on insulin resistance, in healthy male subjects. METHODS: Fifteen healthy male blood donors have been studied before and 48 hours after blood donation...
October 7, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29029341/an-increased-concentration-of-receptor-activator-of-nuclear-factor-kappa-b-ligand-pre-dates-the-onset-of-rheumatoid-arthritis
#3
Linda Johansson, Lisbeth Ärlestig, Heidi Kokkonen, Mikael Brink, Solbritt Rantapää-Dahlqvist
Objectives: RANK ligand (RANKL) is involved in destruction and osteoporosis in RA. In this study, the relationships between RANKL and ACPA, anti-carbamylated protein antibodies (anti-CarP), cytokines and chemokines were analysed in individuals before the onset of RA symptoms, and their associations with radiological findings at disease onset were assessed. Methods: This was a case-control study performed within the Medical Biobank of Northern Sweden that included 470 pre-symptomatic individuals [334 women and 136 men; mean (s...
September 25, 2017: Rheumatology
https://www.readbyqxmd.com/read/29017703/establishment-of-the-ph-eur-hepatitis-a-virus-rna-for-nat-testing-brp-batch-1
#4
M Chudy, C M Nübling, J Blümel, A Daas, A Costanzo
Detection of viral contamination in plasma donations is critical to prevent transmission of infectious diseases. The European Pharmacopoeia (Ph. Eur.) monograph 1646 'Human plasma (pooled and treated for virus inactivation)', requires that plasma pools used for the manufacture of this product be tested, among others, for the presence of hepatitis A virus RNA by nucleic acid testing (NAT) using a positive control containing 100 International Units (IU) of hepatitis A virus (HAV) RNA per mL. To this end, the European Directorate for the Quality of Medicines & HealthCare (EDQM, Council of Europe) organised an international collaborative study under the aegis of the Biological Standardisation Programme, for the establishment of the 1(st) Biological Reference Preparation (BRP) for HAV RNA for NAT testing...
2017: Pharmeuropa Bio & Scientific Notes
https://www.readbyqxmd.com/read/28921551/zika-virus-rna-detection-in-asymptomatic-blood-donors-during-an-outbreak-in-the-northeast-region-of-s%C3%A3-o-paulo-state-brazil-2016
#5
Svetoslav N Slavov, Marta R Hespanhol, Evandra S Rodrigues, José E Levi, Eugênia M A Ubiali, Dimas T Covas, Simone Kashima
BACKGROUND: In 2015, there was a large Zika virus (ZIKV) outbreak in Brazil. The proportion of asymptomatic infections is very high, and it is possible for transfusion-transmitted ZIKV (TT-ZIKV) infection to occur. The prevalence of asymptomatic ZIKV infection among Brazilian blood donors during this epidemic outbreak is unknown. STUDY DESIGN AND METHODS: Plasma samples obtained between October 2015 and May 2016 from 1393 volunteer blood donors were tested for ZIKV RNA...
September 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28914279/blood-products-provided-to-patients-receiving-futile-critical-care
#6
Thanh H Neville, Alyssa Ziman, Neil S Wenger
The number of hospitalized patients receiving treatment perceived to be futile is not insignificant. Blood products are valuable resources that are donated to help others in need. We aimed to quantify the amount of blood transfused into patients who were receiving treatment that the critical care physician treating them perceived to be futile. During a 3-month period, critical care physicians in 5 adult intensive care units completed a daily questionnaire to identify patients perceived as receiving futile treatment...
September 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/28883026/group-o-low-titre-only-emergency-donor-panels-for-small-combat-teams
#7
Heidi Doughty, A Maguire, G Fitchett, P Parker
INTRODUCTION: Military elements increasingly operate in small teams in remote areas with no immediate blood product support. Planners and operators may endorse collection of fresh whole blood from pretested donors in emergency situations. The biggest risk of transfusion is the accidental use of ABO incompatible blood which can be fatal. The risk may be mitigated by using only group O LOw (OLO) titre donors with plasma containing low levels of the naturally occurring antibody to group A and B red cells...
September 6, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/28876690/evaluating-kidney-function-in-living-donors-in-south-africa
#8
J O Okuthe, G P Candy, A M Meyers, R Britz, N Malan, V Vangu, J Fabian
BACKGROUND: Measurement of glomerular filtration rate (GFR) is the best overall index of kidney function. Equations that estimate GFR (eGFR) have been developed for clinical use such as Cockroft and Gault (C+G), four variable Modification of Diet in Renal Disease (4-v MDRD) and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI). Although widely used, they have not been validated in Sub-Saharan Africa. METHOD: Data on 350 adults evaluated for live kidney donation from 1996 to 2013 at Charlotte Maxeke Johannesburg Academic Hospital (CMJAH) and Wits Donald Gordon Medical Centre (WDGMC) was reviewed...
June 2017: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/28859680/prevalence-of-human-pegivirus-1-and-sequence-variability-of-its-e2-glycoprotein-estimated-from-screening-donors-of-fetal-stem-cell-containing-material
#9
Yakov Vitrenko, Iryna Kostenko, Kateryna Kulebyakina, Khrystyna Sorochynska
BACKGROUND: Human pegivirus-1 (HPgV-1) is a member of the Flaviviridae family whose genomic organization and mode of cellular entry is similar to that of hepatitis C virus (HCV). The E2 glycoprotein of HPgV-1 is the principle mediator in the virus-cell interaction and as such harbors most of HPgV-1's antigenic determinants. HPgV-1 persists in blood cell precursors which are increasingly used for cell therapy. METHODS: We studied HPgV-1 prevalence in a large cohort of females donating fetal tissues for clinical use...
August 31, 2017: Virology Journal
https://www.readbyqxmd.com/read/28841764/how-do-people-become-plasma-and-platelet-donors-in-a-vnr-context
#10
Johanne Charbonneau, Marie-Soleil Cloutier, Balia Fainstein
BACKGROUND: The demand for therapeutic plasma-derived products poses a challenge to blood collection agencies (BCAs). In 2014-2015, the volume of plasma sent for fractionation met 17.7% of Quebec's needs for immunoglobulins. This article aims to offer an exploration of the paths blood donors follow in order to become plasma and platelet donors (PPDs). STUDY DESIGN AND METHOD: This analysis is based on semi-structured interviews with 50 PPDs in Quebec, Canada. Our analysis focused on the occurrence of events and the presence of contextual elements identified through: (1) factual data on PPDs; and (2) what PPDs identified as being an influence on their donation experience...
August 25, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28840653/relationships-among-obesity-type-2-diabetes-and-plasma-cytokines-in-african-american-women
#11
Gerald V Denis, Paola Sebastiani, Guillaume Andrieu, Anna H Tran, Katherine J Strissel, Frank L Lombardi, Julie R Palmer
OBJECTIVE: The principal objective of this investigation was to identify novel cytokine associations with BMI and type 2 diabetes (T2D). METHODS: Cytokines were profiled from African American women with obesity who donated plasma to the Komen Tissue Bank. Multiplex bead arrays of analytes were used to quantify 88 cytokines and chemokines in association with clinical diagnoses of metabolic health. Regression models were generated after elimination of outliers. RESULTS: Among women with obesity, T2D was associated with breast adipocyte hypertrophy and with six plasma analytes, including four chemokines (chemokine [C-C motif] ligand 2, chemokine [C-C motif] ligand 16, chemokine [C-X-C motif] ligand 1, and chemokine [C-X-C motif] ligand 16) and two growth factors (interleukin 2 and epidermal growth factor)...
August 25, 2017: Obesity
https://www.readbyqxmd.com/read/28833188/low-hepatitis-e-virus-rna-prevalence-in-a-large-scale-survey-of-united-states-source-plasma-donors
#12
Nathan J Roth, Wolfram Schäfer, Rick Alexander, Kevin Elliott, Wlenyeno Elliott-Browne, Jonathan Knowles, Jürgen J Wenzel, Toby L Simon
BACKGROUND: Hepatitis E virus (HEV) is a small, nonenveloped, single-stranded, RNA virus of emerging concern in industrialized countries. HEV transmission through transfusion of blood components has been reported, but not via plasma-derived medicinal products (PDMPs) manufactured with virus inactivation and/or removal steps. This study aimed to determine the prevalence of HEV among US source plasma donors. STUDY DESIGN AND METHODS: Samples were collected from US source plasma donors at centers across the United States and were initially screened for HEV RNA in 96-sample minipools using the Roche cobas HEV test on the cobas 8800 system...
August 21, 2017: Transfusion
https://www.readbyqxmd.com/read/28828146/cardioprotective-effects-of-transfusion-of-late-phase-preconditioned-plasma-may-be-induced-by-activating-the-reperfusion-injury-salvage-kinase-pathway-but-not-the-survivor-activating-factor-enhancement-pathway-in-rats
#13
Yang Zhao, Zhi-Nan Zheng, Yan-Na Pi, Xue Liang, San-Qing Jin
A previous study in our laboratory demonstrated that transfusion of plasma collected at the late phase of remote ischemic preconditioning (RIPC) could reduce myocardial infarct size. Here, we tested whether the reperfusion injury salvage kinase (RISK) and survivor activating factor enhancement (SAFE) pathways are involved in transferring protection. In a two-part study, donor rats (n = 3) donated plasma 48 hours after RIPC (preconditioned plasma) or control (nonpreconditioned plasma). Normal (part 1) or ischemic (part 2) myocardia were collected from recipients (n = 6) 24 hours after receiving normal saline, nonpreconditioned plasma, and preconditioned plasma or after further suffering ischemia reperfusion...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28802068/dietary-citrate-and-plasma-ionized-calcium-implications-for-platelet-donors
#14
Stefanie Haynes, Elda Hickson, Jeanne Linden, Patricia St Pierre, Paula Ducharme, Paula Sulmasy, Linda Welch, Yong Zhao, Mindy Greene, Michelle Vauthrin, Robert Weinstein
BACKGROUND: Platelet donors receive 40 mmol or more of IV citrate anion during donation. When plasma ionized calcium ([Ca(2+) ]) falls by ∼20%, half of the donors report symptoms of hypocalcemic toxicity. Citrus juices contain clinically relevant amounts of citrate anion. We asked whether citrus juice can lower [Ca(2+) ] thus potentially contributing to hypocalcemic toxicity. METHOD: Six volunteers were given 20.4 mmol of citrate anion as grapefruit juice or orange juice...
August 12, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28800844/first-comparative-analysis-concerning-the-plasma-platelet-contamination-during-mnc-collection
#15
Hella Pfeiffer, Susanne Achenbach, Julian Strobel, Robert Zimmermann, Reinhold Eckstein, Erwin F Strasser
BACKGROUND AND OBJECTIVES: Monocytes can be cultured into dendritic cells with addition of autologous plasma, which is highly prone to platelet contamination due to the apheresis process. Since platelets affect the maturation process of monocytes into dendritic cells and might even lead to a diminished harvest of dendritic cells, it is very important to reduce the platelet contamination. A new collection device (Spectra Optia) was analyzed, compared to two established devices (COM.TEC, Cobe Spectra) and evaluated regarding the potential generation of source plasma...
July 13, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28795781/evaluation-of-the-use-of-shock-index-in-identifying-acute-blood-loss-in-healthy-blood-donor-dogs
#16
Erin E McGowan, Kimberly Marryott, Kenneth J Drobatz, Erica L Reineke
OBJECTIVE: To determine if shock index (SI) would increase following blood donation and if it would be a more sensitive assessment of acute blood loss as compared with heart rate (HR), blood pressure, and plasma lactate. DESIGN: Prospective study. SETTING: University teaching hospital. ANIMALS: Twenty client-owned clinically normal dogs. INTERVENTIONS: Peripheral venous blood measurements and blood donation...
September 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28793014/selective-malaria-antibody-screening-among-eligible-blood-donors-in-jiangsu-china
#17
Hong Lin, Shaowen Zhu, Shengjiang Zhu, Lei Shao, Nan Zhu, Chengyin Huang, Jun Sun
The risk of transfusion-transmitted malaria is a major concern in many countries. This study investigated the prevalence of malaria antibodies and parasitemia in eligible blood donors in Jiangsu, in Eastern China. Malaria antibodies were detected in 2.13% of the 704 plasma samples studied. We found that the prevalence of malaria antibodies was not significantly correlated with gender, occupation and frequency of donation, but it increased with age. No Plasmodium was observed in red blood cells and no Plasmodium DNA was detected in any of the antibody-positive samples...
August 7, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28792109/interface-engineering-of-perovskite-solar-cells-with-air-plasma-treatment-for-improved-performance
#18
Xiao Ma, Peng Tang, Dong Liu, Lili Wu, Jingquan Zhang, Lianghuan Feng
For high-efficiency perovskite solar cells (PSCs), interface engineering becomes critical for carrier collection from active perovskite material to the transport layer. To enhance power conversion efficiency (PCE), here we demonstrate a novel method named surface plasma treatment on mesoporous TiO2 electron transport layer (ETL) to improve electron extraction and transport properties at the perovskite/TiO2 interface. According to the XPS results, the plasma treatment induced a partial reduction of Ti4+ to Ti3+ within the TiO2 lattice and increased the concentration of oxygen vacancy on the TiO2 surface...
August 9, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28763920/-an-analysis-of-factors-associated-with-timeliness-of-antiretroviral-therapy-initiation-among-newly-diagnosed-hiv-aids-from-2010-to-2014-in-china
#19
H L Tang, J Xu, J Han, J Li, Y R Mao
Objective: To analyze timeline of antiretroviral therapy (ART) initiation among newly diagnosed HIV/AIDS from 2010 to 2014, as well as influencing factors. Methods: Data from the Chinese HIV/AIDS Comprehensive Response Information Management System was used to collect newly diagnosed HIV/AIDS cases from January 1, 2010 to December 31, 2014. Inclusion criteria of HIV/AIDS were confirmed cases and clinically diagnosed HIV positive, Chinese mainland cases, 14 years old and above, the first CD4(+)T lymphocyte ≤350 cells/μl in the follow up period...
August 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28735922/prevalence-of-restless-legs-syndrome-and-associated-factors-in-an-otherwise-healthy-population-results-from-the-danish-blood-donor-study
#20
Maria Didriksen, Andreas S Rigas, Richard P Allen, Brendan J Burchell, Emanuele Di Angelantonio, Maria H Nielsen, Poul Jennum, Thomas Werge, Christian Erikstrup, Ole B Pedersen, Mie T Bruun, Kristoffer S Burgdorf, Erik Sørensen, Henrik Ullum
OBJECTIVE: Restless legs syndrome (RLS) is a neurological sensorimotor disorder characterized by uncomfortable sensations in the legs. RLS often occurs as a comorbid condition. Besides an increased risk of iron deficiency, blood donors are considered to be generally healthy. Blood donors are therefore an ideal population for studying factors associated with RLS occurrence, herein the role of iron. It is suggested that RLS is linked to sex, age, low socioeconomic status, unhealthy lifestyle, and iron deficiency...
August 2017: Sleep Medicine
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