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Plasma donation

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https://www.readbyqxmd.com/read/28099525/polyethylene-glycol-camouflaged-earthworm-hemoglobin
#1
Vivek P Jani, Alborz Jelvani, Selamawit Moges, Parimala Nacharaju, Camille Roche, David Dantsker, Andre Palmer, Joel M Friedman, Pedro Cabrales
Nearly 21 million components of blood and whole blood and transfused annually in the United States, while on average only 13.6 million units of blood are donated. As the demand for Red Blood Cells (RBCs) continues to increase due to the aging population, this deficit will be more significant. Despite decades of research to develop hemoglobin (Hb) based oxygen (O2) carriers (HBOCs) as RBC substitutes, there are no products approved for clinical use. Lumbricus terrestris erythrocruorin (LtEc) is the large acellular O2 carrying protein complex found in the earthworm Lumbricus terrestris...
2017: PloS One
https://www.readbyqxmd.com/read/28094599/plasma-25-hydroxyvitamin-d3-levels-in-colorectal-cancer-patients-and-associations-with-physical-activity
#2
Stephanie Skender, Jürgen Böhm, Petra Schrotz-King, Jenny Chang-Claude, Erin M Siegel, Karen Steindorf, Robert W Owen, Jennifer Ose, Michael Hoffmeister, Hermann Brenner, Cornelia M Ulrich
Physical activity (PA) and vitamin D are thought to affect colorectal cancer prognosis. The present study investigates associations between 25(OH)D3 and PA in prospectively followed colorectal cancer patients in the ColoCare study. At 6, 12, and 24 mo after surgery, patients donated a blood sample, wore an accelerometer for 10 consecutive days, and completed a PA questionnaire. Plasma 25-hydroxyvitamin D3 (25(OH)D3) levels were measured by high-performance liquid chromatography. We tested associations using partial correlations and multivariate linear regression analysis, adjusted for season, age, and body mass index...
January 17, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28072724/fatal-antiphospholipid-syndrome-following-endoscopic-transnasal-transsphenoidal-surgery-for-a-pituitary-tumor-a-case-report
#3
Chiao-Zhu Li, Chiao-Ching Li, Chih-Chuan Hsieh, Meng-Chi Lin, Dueng-Yuan Hueng, Feng-Chen Liu, Yuan-Hao Chen
INTRODUCTION: The fatal type of antiphospholipid syndrome is a rare but life-threating condition. It may be triggered by surgery or infection. Endoscopic transnasal-transsphenoidal surgery is a common procedure for pituitary tumor. We report a catastrophic case of a young woman died of fatal antiphospholipid syndrome following endoscopic transnasal-transsphenoidal surgery. METHODS AND RESULT: A 31-year-old woman of a history of stroke received endoscopic transnasal-transsphenoidal surgery for a pituitary tumor...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28060459/circulating-ferritin-concentrations-and-risk-of-type-2-diabetes-in-japanese
#4
Shamima Akter, Akiko Nanri, Keisuke Kuwahara, Yumi Matsushita, Tohru Nakagawa, Maki Konishi, Toru Honda, Shuichiro Yamamoto, Takeshi Hayashi, Mitsuhiko Noda, Tetsuya Mizoue
AIMS/INTRODUCTION: Higher iron storage has been linked to increased risk of type 2 diabetes, but little is known about the mediator of this association. Here, we prospectively investigated the association between circulating ferritin, a marker of iron storage, and the incidence of type 2 diabetes among Japanese. METHODS: Subjects were 4754 employees who attended a comprehensive health checkup in 2008-2009 and donated blood for the study. During 5 years of follow-up, diabetes was identified based on plasma glucose, glycated hemoglobin, and self-report...
January 6, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28058946/evaluation-of-eicosanoid-concentrations-in-stored-units-of-canine-packed-red-blood-cells
#5
Rachel R Blake, Jung Hwa Lee, Matt K Ross, Todd M Archer, Robert W Wills, Andrew J Mackin, John M Thomason
OBJECTIVE To evaluate eicosanoid concentrations in freshly prepared canine packed RBCs (PRBCs) and to assess changes in eicosanoid concentrations in PRBC units over time during storage and under transfusion conditions. DESIGN Prospective study. SAMPLE 25 plasma samples from 14 healthy Greyhounds. PROCEDURES Plasma samples were obtained during PRBC preparation (donation samples), and the PRBC units were then stored at 4°C until used for transfusion (≤ 21 days later; n = 17) or mock transfusion if expired (22 to 24 days later; 8)...
January 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28049540/catestatin-and-vasostatin-concentrations-in-healthy-dogs
#6
Thanikul Srithunyarat, Ragnvi Hagman, Odd V Höglund, Ulf Olsson, Mats Stridsberg, Supranee Jitpean, Anne-Sofie Lagerstedt, Ann Pettersson
BACKGROUND: The neuroendocrine glycoprotein chromogranin A is a useful biomarker in humans for neuroendocrine tumors and stress. Chromogranin A can be measured in both blood and saliva. The objective of this study was to investigate concentrations of and correlation between the chromogranin A epitopes catestatin and vasostatin in healthy dogs accustomed to the sample collection procedures. Blood and saliva samples were collected from 10 research Beagle dogs twice daily for 5 consecutive days, and from 33 privately-owned blood donor dogs in association with 50 different blood donation occasions...
January 3, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28032259/role-of-the-nad-p-h-quinone-oxidoreductase-nqr-and-the-cytochrome-b-air12-in-controlling-superoxide-generation-at-the-plasma-membrane
#7
Catherine Biniek, Eiri Heyno, Jerzy Kruk, Francesca Sparla, Paolo Trost, Anja Krieger-Liszkay
The quinone reductase NQR and the b-type cytochrome AIR12 of the plasma membrane are important for the control of reactive oxygen species in the apoplast. AIR12 and NQR are two proteins attached to the plant plasma membrane which may be important for generating and controlling levels of reactive oxygen species in the apoplast. AIR12 (Auxin Induced in Root culture) is a single gene of Arabidopsis that codes for a mono-heme cytochrome b. The NADPH quinone oxidoreductase NQR is a two-electron-transferring flavoenzyme that contributes to the generation of O 2(•-) in isolated plasma membranes...
December 28, 2016: Planta
https://www.readbyqxmd.com/read/28024112/left-sided-living-kidney-donation-leads-to-transiently-reduced-adrenocortical-responsiveness
#8
F Burn, C Schirpenbach, M Bidlingmaier, M Reincke, D Vetter, D Weishaupt, J G Brockmann, M K Müller, M Weber, F Dahm, A Nocito
Living kidney donation is safe and established, but can lead to long-term complications such as chronic fatigue. Since the adrenal vein is usually transected during left-sided donor nephrectomy - which is not necessary on the right- we hypothesized that venous congestion might lead to an impairment of adrenal function, offering a possible explanation. In this prospective open label, mono-centric cohort study adrenal function was compared in left- and right-sided living kidney donors. The primary endpoint was plasma cortisol response to low-dose ACTH stimulation...
December 26, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/28003931/stability-of-thawed-apheresis-fresh-frozen-plasma-stored-for-up-to-120-hours-at-1%C3%A2-c-to-6%C3%A2-c
#9
William P Sheffield, Varsha Bhakta, Qi-Long Yi, Craig Jenkins
Regulations concerning the storage of transfusable plasma differ internationally. In Canada, plasma obtained from whole blood donations and frozen within 24 hours of phlebotomy (frozen plasma, FP) may be thawed and transfused within 120 hours of refrigerated storage. However, plasma frozen within 8 hours of phlebotomy following apheresis donation (FFPA) must be transfused within 24 hours of thawing and refrigeration. Our objectives were to measure coagulation factors (F) V, VII, and VIII, fibrinogen activities, and the prothrombin time (PT) in thawed refrigerated FFPA at 0, 24, and 120 hours of storage and to compare these values to those in thawed refrigerated FP...
2016: Journal of Blood Transfusion
https://www.readbyqxmd.com/read/27959967/transfusion-80%C3%A2-c-frozen-blood-products-are-safe-and-effective-in-military-casualty-care
#10
Femke Noorman, Thijs T C F van Dongen, Marie-Christine J Plat, John F Badloe, John R Hess, Rigo Hoencamp
INTRODUCTION: The Netherlands Armed Forces use -80°C frozen red blood cells (RBCs), plasma and platelets combined with regular liquid stored RBCs, for the treatment of (military) casualties in Medical Treatment Facilities abroad. Our objective was to assess and compare the use of -80°C frozen blood products in combination with the different transfusion protocols and their effect on the outcome of trauma casualties. MATERIALS AND METHODS: Hemovigilance and combat casualties data from Afghanistan 2006-2010 for 272 (military) trauma casualties with or without massive transfusions (MT: ≥6 RBC/24hr, N = 82 and non-MT: 1-5 RBC/24hr, N = 190) were analyzed retrospectively...
2016: PloS One
https://www.readbyqxmd.com/read/27958291/sexual-dimorphic-function-of-il-17-in-salivary-gland-dysfunction-of-the-c57bl-6-nod-aec1aec2-model-of-sj%C3%A3-gren-s-syndrome
#11
Alexandria Voigt, Lida Esfandiary, Arun Wanchoo, Patricia Glenton, Amy Donate, William F Craft, Serena L M Craft, Cuong Q Nguyen
Interleukin (IL)-17 is one of the critical inflammatory cytokines that plays a direct role in development of Sjögren's syndrome (SjS), a systemic autoimmune disease characterized by a progressive chronic attack against the exocrine glands. The expression levels of IL-17 are correlated with a number of essential clinical parameters such as focus score and disease duration in human patients. Significantly immunological differences of Th17 cells were detected at the onset of clinical disease in female SjS mice compared to males...
December 13, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27957384/mitigating-the-risk-of-transfusion-transmitted-dengue-in-australia
#12
Kelly Rooks, Clive R Seed, Jesse J Fryk, Catherine A Hyland, Robert J Harley, Jerry A Holmberg, Denese C Marks, Robert L P Flower, Helen M Faddy
Dengue viruses (DENV 1-4) are a risk to transfusion safety, with several transfusion-transmitted (TT) cases reported globally. DENV 1-4 are endemic in over 100 countries, with seasonal outbreaks occurring in northeastern Australia. To mitigate TT-DENV risk in Australia, fresh blood components are not manufactured from donors returning from any area (domestic/overseas) with known dengue transmission. Alternatively, TT-DENV risk may be mitigated using an appropriate blood donor screening assay. We aimed to determine the rate of dengue infection in donors during dengue outbreaks in Australia...
2016: Journal of Blood Transfusion
https://www.readbyqxmd.com/read/27943371/a-large-national-study-of-ferritin-testing-in-canadian-blood-donors
#13
Mindy Goldman, Samra Uzicanin, Lori Osmond, Vito Scalia, Sheila F O'Brien
BACKGROUND: We assessed risk groups for iron deficiency and the feasibility and efficacy of ferritin testing in a large blood center. STUDY DESIGN AND METHODS: Donors were informed of possible testing in the predonation pamphlet. Plasma ferritin was measured on retention samples (n = 12,595) from representative clinics. Low-ferritin donors (<25 µg/L) were sent a letter and information sheet and not called for 6 months. Ferritin testing was repeated on 25% of donors; donor return rate and frequency were monitored...
December 9, 2016: Transfusion
https://www.readbyqxmd.com/read/27891624/quarantine-versus-pathogen-reduced-plasma-coagulation-factor-content-and-rotational-thromboelastometry-coagulation
#14
Oliver M Theusinger, David Goslings, Jan-Dirk Studt, Brigitte Brand-Staufer, Burkhardt Seifert, Donat R Spahn, Beat M Frey
BACKGROUND: Different types of fresh-frozen plasma (FFP) exist, and the concentrations of plasma proteins vary between individuals and blood groups. Furthermore, processing may also influence the content. Quarantine-stored plasma (qFFP) and plasma that was pathogen-reduced using blood-safety (Intercept) technology (piFFP) were analyzed regarding procoagulant and anticoagulant hemostasis proteins, including endogenous thrombin (thrombin-generation) potential (ETP). MATERIALS AND METHODS: Thirty-five samples of each type of FFP were analyzed using only male Blood Group O donors...
November 27, 2016: Transfusion
https://www.readbyqxmd.com/read/27861957/improved-donor-safety-in-high-volume-apheresis-collections
#15
Ralph R Vassallo, Marjorie D Bravo, Hany Kamel
BACKGROUND: Separators use 1960s sex-based nomograms to estimate apheresis donor blood volume and to calculate the 15% maximum extracorporeal and collection volumes. As US body habitus changes, proportional overestimation of the maximum safe collection volume may become clinically significant with large-volume collections. We correlated 2 years of vasovagal reaction (VVR) data with 148,416 Trima apheresis procedure parameters to identify trends. STUDY DESIGN AND METHODS: Only platelet/plasma with or without red blood cell (RBC) procedures yielded collection volumes of at least 900 mL with no saline replacement...
November 10, 2016: Transfusion
https://www.readbyqxmd.com/read/27861290/pathophysiological-trends-during-withdrawal-of-life-support-implications-for-organ-donation-after-circulatory-death
#16
Arjun Iyer, Hong Chee Chew, Ling Gao, Jeanette Villanueva, Mark Hicks, Aoife Doyle, Gayathri Kumarasinghe, Andrew Jabbour, Paul Cassius Jansz, Michael P Feneley, Richard P Harvey, Robert M Graham, Kumud K Dhital, Peter S Macdonald
BACKGROUND: Donation after circulatory death (DCD) provides an alternative pathway to deceased organ transplantation. Although clinical DCD lung, liver, and kidney transplantation are well established, transplantation of hearts retrieved from DCD donors has reached clinical translation only recently. Progress has been limited by concern regarding the viability of DCD hearts. The aim of this study was to document the pathophysiological changes that occur in the heart and circulation during withdrawal of life (WLS) support...
December 2016: Transplantation
https://www.readbyqxmd.com/read/27798951/associations-between-adherence-to-the-world-cancer-research-fund-american-institute-for-cancer-research-cancer-prevention-recommendations-and-biomarkers-of-inflammation-hormonal-and-insulin-response
#17
Fred K Tabung, Teresa T Fung, Jorge E Chavarro, Stephanie A Smith-Warner, Walter C Willett, Edward L Giovannucci
Adherence to the 2007 WCRF/AICR cancer prevention recommendations has been associated with lower cancer risk but the underlying biological mechanisms have not been elucidated. We utilized dietary and lifestyle data from 11,342 women in the Nurses' Health Study and 8,136 men in the Health Professionals Follow-up Study, to investigate associations between adherence scores and markers of inflammation, hormonal and insulin response. Two scores ranging from 0 to 3 were constructed to assess adherence to the energy balance-related recommendations (weight management, physical activity, energy density); and the plant, animal foods and alcohol intake recommendations; with higher scores indicating greater adherence...
February 15, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27797116/methods-to-decrease-blood-loss-during-liver-resection-a-network-meta-analysis
#18
REVIEW
Elisabetta Moggia, Benjamin Rouse, Constantinos Simillis, Tianjing Li, Jessica Vaughan, Brian R Davidson, Kurinchi Selvan Gurusamy
BACKGROUND: Liver resection is a major surgery with significant mortality and morbidity. Specialists have tested various methods in attempts to limit blood loss, transfusion requirements, and morbidity during elective liver resection. These methods include different approaches (anterior versus conventional approach), use of autologous blood donation, cardiopulmonary interventions such as hypoventilation, low central venous pressure, different methods of parenchymal transection, different methods of management of the raw surface of the liver, different methods of vascular occlusion, and different pharmacological interventions...
October 31, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27775049/a-high-throughput-microfluidic-approach-for-1000-fold-leukocyte-reduction-of-platelet-rich-plasma
#19
Hui Xia, Briony C Strachan, Sean C Gifford, Sergey S Shevkoplyas
Leukocyte reduction of donated blood products substantially reduces the risk of a number of transfusion-related complications. Current 'leukoreduction' filters operate by trapping leukocytes within specialized filtration material, while allowing desired blood components to pass through. However, the continuous release of inflammatory cytokines from the retained leukocytes, as well as the potential for platelet activation and clogging, are significant drawbacks of conventional 'dead end' filtration. To address these limitations, here we demonstrate our newly-developed 'controlled incremental filtration' (CIF) approach to perform high-throughput microfluidic removal of leukocytes from platelet-rich plasma (PRP) in a continuous flow regime...
October 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27755546/metabolite-and-lipid-profiling-of-biobank-plasma-samples-collected-prior-to-onset-of-rheumatoid-arthritis
#20
Izabella Surowiec, Lisbeth Ärlestig, Solbritt Rantapää-Dahlqvist, Johan Trygg
OBJECTIVE: The early diagnosis of rheumatoid arthritis (RA) is desirable to install treatment to prevent disease progression and joint destruction. Autoantibodies and immunological markers pre-date the onset of symptoms by years albeit not all patients will present these factors, even at disease onset. Additional biomarkers would be of high value to improve early diagnosis and understanding of the process, leading to disease development. METHODS: Plasma samples donated before the onset of RA were identified in the Biobank of Northern Sweden, a collection within national health survey programs...
2016: PloS One
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