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https://www.readbyqxmd.com/read/28097705/non-polar-lipids-accumulate-during-storage-of-transfusion-products-and-do-not-contribute-to-the-onset-of-transfusion-related-acute-lung-injury
#1
A L Peters, M A T Vervaart, R van Bruggen, D de Korte, R Nieuwland, W Kulik, A P J Vlaar
BACKGROUND AND OBJECTIVES: The accumulation of non-polar lipids arachidonic acid, 5-hydroxyeicosatetraenoic acid (HETE), 12-HETE and 15-HETE during storage of transfusion products may play a role in the onset of transfusion-related acute lung injury (TRALI), a syndrome of respiratory distress after transfusion. MATERIALS AND METHODS: We investigated non-polar lipid accumulation in red blood cells (RBCs) stored for 42 days, plasma stored for 7 days at either 4 or 20°C and platelet (PLT) transfusion products stored for 7 days...
January 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28079258/combined-effect-of-therapeutic-strategies-for-bleeding-injury-on-early-survival-transfusion-needs-and-correction-of-coagulopathy
#2
K Balvers, S van Dieren, K Baksaas-Aasen, C Gaarder, K Brohi, S Eaglestone, S Stanworth, P I Johansson, S R Ostrowski, J Stensballe, M Maegele, J C Goslings, N P Juffermans
BACKGROUND: The combined effects of balanced transfusion ratios and use of procoagulant and antifibrinolytic therapies on trauma-induced exsanguination are not known. The aim of this study was to investigate the combined effect of transfusion ratios, tranexamic acid and products containing fibrinogen on the outcome of injured patients with bleeding. METHODS: A prospective multicentre observational study was performed in six level 1 trauma centres. Injured patients who received at least 4 units of red blood cells (RBCs) were analysed and divided into groups receiving a low (less than 1 : 1) or high (1 or more : 1) ratio of plasma or platelets to RBCs, and in receipt or not of tranexamic acid or fibrinogen products (fibrinogen concentrates or cryoprecipitate)...
January 12, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28056978/short-term-storage-stability-at-room-temperature-of-two-different-platelet-rich-plasma-preparations-from-equine-donors-and-potential-impact-on-growth-factor-concentrations
#3
Gregor Hauschild, Florian Geburek, Georg Gosheger, Maria Eveslage, Daniela Serrano, Arne Streitbürger, Sara Johannlükens, Dirk Menzel, Reinhard Mischke
BACKGROUND: The increasing interest in platelet-rich plasma (PRP) based therapies is as yet accompanied by inconsistent information regarding nearly all aspects of handling and application. Among these storage stability of processed platelet-rich products may be the basis for a more flexible application mode. The objective of this study was (1) to estimate the storage stability of growth factors platelet derived growth factor BB (PDGF-BB) and transforming growth factor ß1 (TGF-ß1) in both, a single-step softspin centrifugation-based pure-PRP (P-PRP, ACP®), and a gravity filtration system-based leukocyte-rich-PRP (L-PRP, E-PET), over a six hours time span after preparation at room temperature and (2) to identify possible factors influencing these growth factor concentrations in an equine model...
January 5, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28050902/erythrocyte-membrane-coated-upconversion-nanoparticles-with-minimal-protein-adsorption-for-enhanced-tumor-imaging
#4
Lang Rao, Qian-Fang Meng, Lin-Lin Bu, Bo Cai, Qinqin Huang, Zhi-Jun Sun, Wen-Feng Zhang, Andrew Li, Shi-Shang Guo, Wei Liu, Tza-Huei Wang, Xing-Zhong Zhao
Upconversion nanoparticles (UCNPs) with superior optical and chemical features have been broadly employed for in vivo cancer imaging. Generally, UCNPs are surface modified with ligands for cancer active targeting. However, nanoparticles in biological fluids are known to form a long-lived "protein corona", which covers the targeting ligands on nanoparticle surface and dramatically reduces the nanoparticle targeting capabilities. Here, for the first time, we demonstrated that by coating UCNPs with red blood cell (RBC) membranes, the resulting cell membrane-capped nanoparticles (RBC-UCNPs) adsorbed virtually no proteins when exposed to human plasma...
January 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28050381/spectrum-of-changes-in-rbc-indices-and-histograms-in-blood-from-subjects-with-cold-antibodies
#5
Chidambharam Choccalingam, Aarthi Kannan
Cold antibodies are mostly immunoglobulin M, which interact with red cell antigens at lower temperatures (<37°C). The analysis of samples from subjects with cold antibodies in automated haematology analysers may show abnormal Red Blood Corpuscles (RBC) indices and changes in histogram. High Mean Corpuscular Haemoglobin (MCH) and Mean Haemoglobin Concentration (MCHC) along with plateau effect beyond 110fl at Upper Discriminator (RU) end of RBC histogram are good indicators of presence of cold antibodies in plasma...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28044355/a-cellular-model-of-shear-induced-hemolysis
#6
Salman Sohrabi, Yaling Liu
A novel model is presented to study red blood cell (RBC) hemolysis at cellular level. Under high shear rates, pores form on RBC membranes through which hemoglobin (Hb) leaks out and increases free Hb content of plasma leading to hemolysis. By coupling lattice Boltzmann and spring connected network models through immersed boundary method, we estimate hemolysis of a single RBC under various shear rates. First, we use adaptive meshing to find local strain distribution and critical sites on RBC membranes, and then we apply underlying molecular dynamics simulations to evaluate damage...
January 3, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28034894/the-osmopressor-induced-angiopoietin-1-secretion-in-plasma-and-subsequent-activation-of-the-tie-2-akt-enos-signaling-pathway-in-red-blood-cell
#7
You-Hsiang Chu, Chih-Cherng Lu, Tso-Chou Lin, Mei-Yung Tsou, Yu-Juei Hsu, Shung-Tai Ho, Che-Se Tung, Ching-Jiunn Tseng, Min-Hui Li, Herng-Sheng Lee
BACKGROUND: Water ingestion induces the osmopressor response, which typically presents as increased total peripheral vascular resistance in young healthy subjects. A previous study has suggested that the RBC membrane receptor is involved in osmopressor stress. Recent studies have indicated nitric oxide synthase phosphorylation in RBCs. However, the main process in signaling pathway activation to elicit such a response is unknown. Herein, we hypothesized that hypo-osmotic stress following water ingestion modulates the eNOS/NO pathway, thereby alternating vascular resistance...
December 29, 2016: American Journal of Hypertension
https://www.readbyqxmd.com/read/28019031/pathogen-inactivation-by-riboflavin-and-ultraviolet-light-illumination-accelerates-the-red-blood-cell-storage-lesion-and-promotes-eryptosis
#8
Syed M Qadri, Deborah Chen, Peter Schubert, Darian L Perruzza, Varsha Bhakta, Dana V Devine, William P Sheffield
BACKGROUND: Pathogen reduction treatment using riboflavin and ultraviolet light illumination (Mirasol) effectively reduces the risk of transfusion-transmitted infections. This treatment is currently licensed for only platelets and plasma products, while its application to whole blood (WB) to generate pathogen-inactivated red blood cells (RBCs) is under development. RBC storage lesion, constituting numerous morphologic and biochemical changes, influences RBC quality and limits shelf life...
December 26, 2016: Transfusion
https://www.readbyqxmd.com/read/28001307/storage-of-red-blood-cells-in-a-novel-polyolefin-blood-container-a-pilot-in-vitro-study
#9
H Gulliksson, S Meinke, A Ravizza, L Larsson, P Höglund
BACKGROUND AND OBJECTIVES: The present general plasticizer di-2-ethylhexyl-phthalate in polyvinylchloride (PVC) blood bags is only physically dispersed in PVC and will therefore leach into blood components. The objective of this study was to perform a first preliminary red blood cell (RBC) storage evaluation in a new blood bag manufactured of polyolefin without any inclusion of potentially migrating substances. STUDY DESIGN AND METHODS: This is a RBC storage study for 42 days...
January 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/27984639/exacerbation-of-oxidative-stress-during-sickle-vaso-occlusive-crisis-is-associated-with-decreased-anti-band-3-autoantibodies-rate-and-increased-red-blood-cell-derived-microparticle-level-a-prospective-study
#10
Régine Hierso, Nathalie Lemonne, Rinaldo Villaescusa, Marie-Laure Lalanne-Mistrih, Keyne Charlot, Maryse Etienne-Julan, Benoit Tressières, Yann Lamarre, Vanessa Tarer, Yohann Garnier, Ada Arce Hernandez, Serge Ferracci, Philippe Connes, Marc Romana, Marie-Dominique Hardy-Dessources
Painful vaso-occlusive crisis, a hallmark of sickle cell anaemia, results from complex, incompletely understood mechanisms. Red blood cell (RBC) damage caused by continuous endogenous and exogenous oxidative stress may precipitate the occurrence of vaso-occlusive crises. In order to gain insight into the relevance of oxidative stress in vaso-occlusive crisis occurrence, we prospectively compared the expression levels of various oxidative markers in 32 adults with sickle cell anaemia during vaso-occlusive crisis and steady-state conditions...
December 16, 2016: British Journal of Haematology
https://www.readbyqxmd.com/read/27976929/folate-homocysteine-and-selected-vitamins-and-minerals-status-in-infertile-women
#11
Irene La Vecchia, Alessio Paffoni, Marta Castiglioni, Stefania Ferrari, Renata Bortolus, Chiara Ferraris Fusarini, Nora Bettinardi, Edgardo Somigliana, Fabio Parazzini
OBJECTIVES: Diet has been recognised as a crucial factor influencing fetal and maternal health. Adequate levels of substances such as homocysteine, folate and vitamin B12 have been associated with a higher rate of success in infertility treatments. Few data, however, are available on the average levels of micronutrients in the blood of reproductive-aged women, and specific values for adequate levels are not available. The aim of this cross-sectional study was to measure levels of folate, homocysteine and selected vitamins and minerals in women attending the infertility unit of an academic hospital for in vitro fertilisation (IVF)...
December 15, 2016: European Journal of Contraception & Reproductive Health Care
https://www.readbyqxmd.com/read/27974641/proper-cytoskeletal-architecture-beneath-the-plasma-membrane-of-red-blood-cells-requires-ttll4
#12
Faryal Ijaz, Yasue Hatanaka, Takahiro Hatanaka, Koji Tsutsumi, Takayuki Iwaki, Kazuo Umemura, Koji Ikegami, Mitsutoshi Setou
Mammalian red blood cells (RBCs) circulate through blood vessels, including capillaries, for tens of days under high mechanical stress. RBCs tolerate this mechanical stress while maintaining their shape because of their elastic membrane skeleton. This membrane skeleton consists of spectrin-actin lattices arranged as quasi-hexagonal units beneath the plasma membrane. In this study, we found that the organization of the RBC cytoskeleton requires tubulin tyrosine ligase-like 4 (Ttll4). RBCs from Ttll4-knockout mice showed larger average diameters in smear tests...
December 14, 2016: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/27964918/optimal-plasma-transfusion-in-patients-undergoing-cardiac-operations-with-massive-transfusion
#13
Michael A Mazzeffi, Evan Chriss, Kathryn Davis, Min Zhan, Anthony Harris, Peter Rock, James S Gammie, Kenichi Tanaka
BACKGROUND: Observational studies suggest that transfusion of high ratios of fresh frozen plasma (FFP) to red blood cells (RBCs) reduces mortality in severe hemorrhage. There are no studies examining the impact of the FFP to RBC transfusion ratio on mortality in massively transfused patients undergoing cardiac operations. METHODS: A single-center retrospective cohort study was performed over an 8.5-year period. Massive transfusion was defined as at least 8 RBC units administered during the operation...
December 10, 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27960188/effects-of-vitamin-e-coated-versus-conventional-membranes-in-chronic-hemodialysis-patients-a-systematic-review-and-meta-analysis
#14
Graziella D'Arrigo, Rossella Baggetta, Giovanni Tripepi, Francesco Galli, Davide Bolignano
INTRODUCTION: Accruing evidence suggests that vitamin E-coated membranes (ViE-m) might improve the clinical management of chronic hemodialysis (HD) patients. METHODS: We conducted a systematic review and meta-analysis of RCTs comparing ViE-m to conventional HD. Endpoints of interest were a series of biomarkers pertaining to anemia status, inflammation, oxidative stress and dialysis efficacy/status. RESULTS: Sixty studies were included. ViE-m significantly improved the Erythropoietin Resistance Index but had no impact on other anemia parameters...
December 14, 2016: Blood Purification
https://www.readbyqxmd.com/read/27959967/transfusion-80%C3%A2-c-frozen-blood-products-are-safe-and-effective-in-military-casualty-care
#15
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/27939176/lack-of-impact-of-umbilical-cord-blood-unit-processing-techniques-on-clinical-outcomes-in-adult-double-cord-blood-transplant-recipients
#16
Sarah Nikiforow, Shuli Li, Karen Snow, Deborah Liney, Grace Shih-Hui Kao, Richard Haspel, Elizabeth J Shpall, Brett Glotzbecker, R Alejandro Sica, Philippe Armand, John Koreth, Vincent T Ho, Edwin P Alyea, Jerome Ritz, Robert J Soiffer, Joseph H Antin, Bimal Dey, Steven McAfee, Yi-Bin Chen, Thomas Spitzer, David Avigan, Corey S Cutler, Karen Ballen
BACKGROUND AIMS: Despite widespread use of umbilical cord blood (UCB) transplantation and distinct practice preferences displayed by individual UCB banks and transplant centers, little information exists on how processing variations affect patient outcomes. METHODS: We reviewed 133 adult double UCB transplants performed at a single center: 98 after reduced-intensity and 35 after myeloablative conditioning. Processing associated with contributing UCB banks and units was surveyed to identify differences in practice...
February 2017: Cytotherapy
https://www.readbyqxmd.com/read/27938373/pre-hospital-transfusion-of-plasma-in-hemorrhaging-trauma-patients-independently-improves-hemostatic-competence-and-acidosis
#17
Hanne H Henriksen, Elaheh Rahbar, Lisa A Baer, John B Holcomb, Bryan A Cotton, Jacob Steinmetz, Sisse R Ostrowski, Jakob Stensballe, Pär I Johansson, Charles E Wade
BACKGROUND: The early use of blood products has been associated with improved patient outcomes following severe hemorrhage or traumatic injury. We aimed to investigate the influence of pre-hospital blood products (i.e. plasma and/or RBCs) on admission hemostatic properties and patient outcomes. We hypothesized that pre-hospital plasma would improve hemostatic function as evaluated by rapid thrombelastography (rTEG). METHODS: We conducted a prospective observational study recruiting 257 trauma patients admitted to a Level I trauma center having received either blood products pre-hospital or in-hospital within 6 hours of admission...
December 9, 2016: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/27925242/red-blood-cell-mechanical-fragility-test-for-clinical-research-applications
#18
Luke A Ziegler, Salim E Olia, Marina V Kameneva
Red blood cell (RBC) susceptibility to mechanically induced hemolysis, or RBC mechanical fragility (MF), is an important parameter in the characterization of erythrocyte membrane health. The rocker bead test (RBT) and associated calculated mechanical fragility index (MFI) is a simple method for the assessment of RBC MF. Requiring a minimum of 15.5 mL of blood and necessitating adjustment of hematocrit (Ht) to a "standard" value (40%), the current RBT is not suitable for use in most studies involving human subjects...
December 7, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27921101/the-effect-of-common-anticoagulants-in-detection-and-quantification-of-malaria-parasitemia-in-human-red-blood-cells-by-atr-ftir-spectroscopy
#19
Miguela Martin, David Perez-Guaita, Dean W Andrew, Jack S Richards, Bayden R Wood, Philip Heraud
Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR) has the potential to become a new diagnostic tool for malaria and other diseases. For point-of-care testing, the use of ATR-FTIR in malaria diagnosis enables the analysis of blood in the aqueous state, which represents an enormous advantage by minimising the sample preparation by removing the need for cell fixation. Here we report the quantification of malaria parasitemia in human RBCs in their normal physiological aqueous state...
December 6, 2016: Analyst
https://www.readbyqxmd.com/read/27915453/effects-of-chronic-nitric-oxide-synthase-inhibition-on-v-o2max-and-exercise-capacity-in-mice
#20
M Wojewoda, K Przyborowski, B Sitek, A Zakrzewska, L Mateuszuk, J A Zoladz, S Chlopicki
Acute inhibition of NOS by L-NAME (N(ω)-nitro-L-arginine methyl ester) is known to decrease maximal oxygen consumption (V'O2max) and impair maximal exercise capacity, whereas the effects of chronic L-NAME treatment on V'O2max and exercise performance have not been studied so far. In this study, we analysed the effect of L-NAME treatment, (LN2 and LN12, respectively) on V'O2max and exercise capacity (in maximal incremental running and prolonged sub-maximal incremental running tests), systemic NO bioavailability (plasma nitrite (NO2(-)) and nitrate (NO3(-))) and prostacyclin (PGI2) production in C57BL6/J mice...
December 3, 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
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