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https://www.readbyqxmd.com/read/28524547/performance-of-a-new-generation-continuous-autotransfusion-device-including-fat-removal-and-consequences-for-quality-controls
#1
T F Seyfried, M Gruber, D Bitzinger, M T Pawlik, A Breu, B M Graf, E Hansen
BACKGROUND AND OBJECTIVES: Cell salvage plays a key role in blood conservation. To maintain high performance, quality management is recommended. Accordingly, a new-generation autotransfusion device was tested for its performance and compared with its predecessor. Two different calculations of quality parameters were applied. MATERIALS AND METHODS: In an experimental study, the continuous autotransfusion devices CATSmart and Continuous Autotransfusion System (C.A...
May 19, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28524208/microfluidic-analysis-of-red-blood-cell-deformability-as-a-means-to-assess-hemin-induced-oxidative-stress-resulting-from-plasmodium-falciparum-intraerythrocytic-parasitism
#2
Kerryn Matthews, Simon P Duffy, Marie-Eve Myrand-Lapierre, Richard R Ang, Li Li, Mark D Scott, Hongshen Ma
Hemolytic anemia is one of the hallmarks of malaria and leads to an increase in oxidized heme (hemin) within the plasma of infected individuals. While scavenger proteins sequester much of the circulating heme, it has been hypothesized that extracellular heme may play a central role in malaria pathogenesis. We have previously developed the multiplex fluidic plunger (MFP) device for the measurement of red blood cell (RBC) deformability. Here, we demonstrate that the measurement of changes in RBC deformability is a sensitive method for inferring heme-induced oxidative stress...
May 19, 2017: Integrative Biology: Quantitative Biosciences From Nano to Macro
https://www.readbyqxmd.com/read/28518049/red-blood-cell-storage-time-and-transfusion-current-practice-concerns-and-future-perspectives
#3
REVIEW
María García-Roa, María Del Carmen Vicente-Ayuso, Alejandro M Bobes, Alexandra C Pedraza, Ataúlfo González-Fernández, María Paz Martín, Isabel Sáez, Jerard Seghatchian, Laura Gutiérrez
Red blood cells (RBCs) units are the most requested transfusion product worldwide. Indications for transfusion include symptomatic anaemia, acute sickle cell crisis, and acute blood loss of more than 30% of the blood volume, with the aim of restoring tissue oxygen delivery. However, stored RBCs from donors are not a qualitative equal product, and, in many ways, this is a matter of concern in the transfusion practice. Besides donor-to-donor variation, the storage time influences the RBC unit at the qualitative level, as RBCs age in the storage bag and are exposed to the so-called storage lesion...
May 2017: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/28515013/atomic-force-microscopy-from-red-blood-cells-to-immunohaematology
#4
REVIEW
Natasha Yeow, Rico F Tabor, Gil Garnier
Atomic force microscopy (AFM) offers complementary imaging modes that can provide morphological and structural details of red blood cells (RBCs), and characterize interactions between specific biomolecules and RBC surface antigen. This review describes the applications of AFM in determining RBC health by the observation of cell morphology, elasticity and surface roughness. Measurement of interaction forces between plasma proteins and antibodies against RBC surface antigen using the AFM also brought new information to the immunohaematology field...
May 11, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28510741/early-or-late-fresh-frozen-plasma-administration-in-newborns-and-small-infants-undergoing-cardiac-surgery-the-appear-randomized-trial
#5
P Bianchi, M Cotza, C Beccaris, S Silvetti, G Isgrò, G Pomè, A Giamberti, M Ranucci
Background: In newborns and small infants undergoing cardiac surgery with cardiopulmonary bypass (CPB) and blood priming, it is unclear whether there is reduced blood loss if fresh frozen plasma (FFP) is added to the CPB priming volume. This single-centre, randomized trial tested the hypothesis that the administration of FFP after CPB (late FFP group) is superior to FFP priming (early FFP group) in terms of postoperative bleeding and overall red blood cell (RBC) transfusion. Methods: Seventy-three infants weighing <10 kg were randomly allocated to receive FFP to supplement RBCs in the CPB priming solution ( n =36) or immediately after CPB ( n =37)...
May 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28508406/hypericum-perforatum-l-supplementation-protects-sciatic-nerve-injury-induced-apoptotic-inflammatory-and-oxidative-damage-to-muscle-blood-and-brain-in-rats
#6
Fuat Uslusoy, Mustafa Nazıroğlu, İshak Suat Övey, Tolga Taha Sönmez
OBJECTIVES: This study was conducted to explore whether Hypericum perforatum L. (HPL) as a potent antioxidant protects against oxidative stress, cytokine production and caspase expression in muscle (soleus), brain and blood of sciatic nerve injury (SNI)-induced rats. METHODS: Thirty-five rats were equally divided into five groups. The first and second were used as untreated control and sham control groups, respectively. The third, fourth and fifth were sham + HPL, SNI and SNI + HPL groups, respectively...
May 16, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28497550/metagenomics-analysis-of-red-blood-cell-and-fresh-frozen-plasma-units
#7
Pierre Lau, Samuel Cordey, Francisco Brito, Diderik Tirefort, Thomas J Petty, Lara Turin, Arthur Guichebaron, Mylène Docquier, Evgeny M Zdobnov, Sophie Waldvogel-Abramowski, Thomas Lecompte, Laurent Kaiser, Olivier Preynat-Seauve
BACKGROUND: Although the risk of transmitting infectious agents by blood transfusion is dramatically reduced after donor selection, leukoreduction, and laboratory testing, some could still be present in donor's blood. A description of metagenomes in blood products eligible for transfusion represents relevant information to evaluate the risk of pathogen transmission by transfusion. STUDY DESIGN AND METHODS: Detection of viruses, bacteria, and fungi genomes was made by high-throughput sequencing (HTS) of 600 manufactured blood products eligible for transfusion: 300 red blood cell (RBC) and 300 fresh-frozen plasma (FFP) units...
May 11, 2017: Transfusion
https://www.readbyqxmd.com/read/28495585/rapid-separation-of-very-low-concentrations-of-bacteria-from-blood
#8
Clara M Buchanan, Ryan L Wood, Taalin R Hoj, Mahsa Alizadeh, Colin G Bledsoe, Madison E Wood, Daniel S McClellan, Rae Blanco, Caroline L Hickey, Tanner V Ravsten, Ghaleb A Husseini, Richard A Robison, William G Pitt
A rapid and accurate diagnosis of the species and antibiotic resistance of bacteria in septic blood is vital to increase survival rates of patients with bloodstream infections, particularly those with carbapenem-resistant enterobacteriaceae (CRE) infections. The extremely low levels in blood (1 to 100CFU/ml) make rapid diagnosis difficult. In this study, very low concentrations of bacteria (6 to 200CFU/ml) were separated from 7ml of whole blood using rapid sedimentation in a spinning hollow disk that separated plasma from red and white cells, leaving most of the bacteria suspended in the plasma...
May 8, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28492980/-haemostatic-management-in-postpartum-haemorrhage-nationwide-survey-in-germany
#9
L Kaufner, K Ghantus, A Henkelmann, U Friedrichs, K Weizsäcker, A Schiemann, C von Heymann
BACKGROUND: In order to ensure evidence-based haemostatic management of postpartum haemorrhage (PPH, blood loss >500 ml) consistent with guidelines appropriate structural conditions must be fulfilled regardless of different levels (1-3) in perinatal care. The aim of the survey was to identify differences in haemostatic management in PPH under consideration of the different levels of perinatal care in Germany. MATERIALS AND METHODS: An electronic questionnaire assessing the structural and therapeutic preconditions for haemostatic management was sent to 533 anaesthesiology departments serving obstetric units...
May 10, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28488960/towards-pathogen-inactivation-of-red-blood-cells-and-whole-blood-targeting-viral-dna-rna-design-technologies-and-future-prospects-for-developing-countries
#10
REVIEW
Victor J Drew, Lassina Barro, Jerard Seghatchian, Thierry Burnouf
Over 110 million units of blood are collected yearly. The need for blood products is greater in developing countries, but so is the risk of contracting a transfusion-transmitted infection. Without efficient donor screening/viral testing and validated pathogen inactivation technology, the risk of transfusion-transmitted infections correlates with the infection rate of the donor population. The World Health Organization has published guidelines on good manufacturing practices in an effort to ensure a strong global standard of transfusion and blood product safety...
April 13, 2017: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/28480809/sodium-meta-arsenite-induced-reactive-oxygen-species-in-human-red-blood-cells-impaired-antioxidant-and-membrane-redox-systems-haemoglobin-oxidation-and-morphological-changes
#11
Nikhil Maheshwari, Fahim Halim Khan, Riaz Mahmood
Arsenic (As) is an air and water toxicant that causes cancer in multiple organs. Humans are exposed to arsenic through contaminated water. We have examined the cytotoxicity of sodium meta-arsenite (SA), an As(III) compound, in human red blood cells (RBC) under in vitro conditions. Hemolysates were prepared from human RBC treated with different concentrations of SA (0.1 to 5.0 mM) for 5 h at 37°C. SA treatment of RBC caused significant increase in methemoglobin formation, protein and lipid oxidation and nitric oxide levels...
May 7, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28475670/randomized-trial-of-red-cell-washing-for-the-prevention-of-transfusion-associated-organ-injury-in-cardiac-surgery
#12
M J Wozniak, N Sullo, S Qureshi, W Dott, R Cardigan, M Wiltshire, T Morris, M Nath, N Bittar, S K Bhudia, T Kumar, A H Goodall, G J Murphy
Background: Experimental studies suggest that mechanical cell washing to remove pro-inflammatory components that accumulate in the supernatant of stored donor red blood cells (RBCs) might reduce inflammation and organ injury in transfused patients. Methods: Cardiac surgery patients at increased risk of large-volume RBC transfusion were eligible. Participants were randomized to receive either mechanically washed allogenic RBCs or standard care RBCs. The primary outcome was serum interleukin-8 measured at baseline and at four postsurgery time points...
May 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28474406/analysis-of-rbc-microparticles-in-stored-whole-blood-bags-a-promising-marker-to-detect-blood-doping-in-sports
#13
Sven Christian Voss, Morana Jaganjac, Amna Mohamed Al-Thani, Jean Charles Grivel, Christophe Raynaud, Hind Al-Jaber, Afnan Saleh Al-Menhali, Zeyed Ahmad Merenkov, Mohammed Alsayrafi, Aishah Latiff, Costas Georgakopoulos
Blood doping in sports is prohibited by the World Anti-Doping Agency (WADA). To find a possible biomarker for the detection of blood doping, we investigated the changes in blood stored in CPDA-1 blood bags of eight healthy subjects who donated one unit of blood. Aliquots were taken on days 0, 14 and 35. Platelet free Plasma was prepared and stored at -80 °C until analysis on a flow cytometer dedicated for the analysis of Microparticles (MPs). Changes in the number of Red Blood Cell (RBC) -MPs were highly significant (p < 0...
May 4, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28470926/prevalence-of-hemolysis-and-metabolic-acidosis-in-patients-with-circulatory-failure-supported-with-extracorporeal-life-support-a-marker-for-survival
#14
Karla Lehle, Matthias Lubnow, Alois Philipp, Maik Foltan, Florian Zeman, York Zausig, Dirk Lunz, Christof Schmid, Thomas Müller
AIMS: Elevated levels of plasma free hemoglobin (fHb) indicate red blood cell (RBC) damage. The aim of this study was to analyze the prevalence of hemolysis and metabolic acidosis in patients on extracorporeal life support (ECLS) and to investigate whether it is a marker for outcome. METHODS AND RESULTS: This retrospective analysis included 215 adult patients with cardiac failure treated with ECLS. The cohort was divided into three groups: ECLS (1) during ongoing cardiopulmonary resuscitation (CPR, n = 110); (2) after CPR with return of spontaneous circulation and sustained cardiogenic shock (n = 45); (3) in severe cardiogenic shock without previous CPR (n = 60)...
May 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28469086/iron-accelerates-hemoglobin-oxidation-increasing-mortality-in-vascular-diseased-guinea-pigs-following-transfusion-of-stored-blood
#15
Jin Hyen Baek, Ayla Yalamanoglu, Yamei Gao, Ricardo Guenster, Donat R Spahn, Dominik J Schaer, Paul W Buehler
Non-transferrin-bound iron (NTBI) and free hemoglobin (Hb) accumulate in circulation following stored RBC transfusions. This study investigated transfusion, vascular disease, and mortality in guinea pigs after stored RBC transfusion alone and following cotransfusion with apo-transferrin (apo-Tf) and haptoglobin (Hp). The effects of RBC exchange transfusion dose (1, 3, and 9 units), storage period (14 days), and mortality were evaluated in guinea pigs with a vascular disease phenotype. Seven-day mortality and the interaction between iron and Hb as cocontributors to adverse outcome were studied...
May 4, 2017: JCI Insight
https://www.readbyqxmd.com/read/28452877/incompatible-type-a-plasma-transfusion-in-patients-requiring-massive-transfusion-protocol-outcomes-of-an-east-multicenter-study
#16
W Tait Stevens, Bryan C Morse, Andrew Bernard, Dan Davenport, Valerie G Sams, Michael Goodman, Russell Dumire, Matt Carrick, Patrick McCarthy, James R Stubbs, Timothy Pritts, Christopher J Dente, Xian Luo-Owen, Jason Gregory, David Turay, Dina Gomaa, Juan C Quispe, Caitlin A Fitzgerald, Nadeem Haddad, Asad Choudhry, Jose Quesada, Martin D Zielinski
With a relative shortage of type AB plasma, many centers have converted to type A plasma for resuscitation of patients whose blood type is unknown. The goal of this study is to determine outcomes for trauma patients who received incompatible plasma transfusions as part of a massive transfusion protocol (MTP). METHODS: As part of an EAST multi-institutional trial, registry and blood bank data were collected from 8 trauma centers for trauma patients (age ≥ 15 years) receiving emergency release plasma transfusions as part of MTPs from January 2012 - August 2016...
April 27, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28436274/depletion-of-hdl3-high-density-lipoprotein-and-altered-functionality-of-hdl2-in-blood-from-sickle-cell-patients
#17
Eric Soupene, Sandra K Larkin, Frans A Kuypers
In sickle cell disease (SCD), alterations of cholesterol metabolism is in part related to abnormal levels and activity of plasma proteins such as lecithin cholesterol acyltransferase (LCAT), and apolipoprotein A-I (ApoA-I). In addition, the size distribution of ApoA-I high density lipoproteins (HDL) differs from normal blood. The ratio of the amount of HDL2 particle relative to the smaller higher density pre-β HDL (HDL3) particle was shifted toward HDL2. This lipoprotein imbalance is exacerbated during acute vaso-occlusive episodes (VOE) as the relative levels of HDL3 decrease...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28425751/development-of-red-blood-cell-autoantibodies-following-treatment-with-checkpoint-inhibitors-a-new-class-of-anti-neoplastic-immunotherapeutic-agents-associated-with-immune-dysregulation
#18
Laura L Cooling, John Sherbeck, Jonathon C Mowers, Sheri L Hugan
Ipilimumab, nivolumab, and pembrolizumab represent a new class of immunotherapeutic drugs for treating patients with advanced cancer. Known as checkpoint inhibitors, these drugs act to upregulate the cellular and humoral immune response to tumor antigens by inhibiting T-cell autoregulation. As a consequence, they can be associated with immune-related adverse events (irAEs) due to loss of self-tolerance, including rare cases of immune-related cytopenias. We performed a retrospective clinical chart review, including serologic, hematology, and chemistry laboratory results, of two patients who developed red blood cell (RBC) autoantibodies during treatment with a checkpoint inhibitor...
January 2017: Immunohematology
https://www.readbyqxmd.com/read/28405258/rapid-isolation-of-blood-plasma-using-a-cascaded-inertial-microfluidic-device
#19
M Robinson, H Marks, T Hinsdale, K Maitland, G Coté
Blood, saliva, mucus, sweat, sputum, and other biological fluids are often hindered in their ability to be used in point-of-care (POC) diagnostics because their assays require some form of off-site sample pre-preparation to effectively separate biomarkers from larger components such as cells. The rapid isolation, identification, and quantification of proteins and other small molecules circulating in the blood plasma from larger interfering molecules are therefore particularly important factors for optical blood diagnostic tests, in particular, when using optical approaches that incur spectroscopic interference from hemoglobin-rich red blood cells (RBCs)...
March 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/28404832/folate-deficiency-is-prevalent-in-women-of-childbearing-age-in-belize-and-is-negatively-affected-by-coexisting-vitamin-b-12-deficiency-belize-national-micronutrient-survey-2011
#20
Jorge Rosenthal, Natalia Largaespada, Lynn B Bailey, Michael Cannon, C J Alverson, Dayrin Ortiz, Gail Pa Kauwell, Joe Sniezek, Ramon Figueroa, Robyn Daly, Peter Allen
Background: Folate deficiency, vitamin B-12 deficiency, and anemia can have adverse effects on birth outcomes. Also, low vitamin B-12 reduces the formation of metabolically active folate.Objectives: We sought to establish the baseline prevalence of and factors associated with folate deficiency and insufficiency, vitamin B-12 deficiency, and anemia among women of childbearing age (WCBA) in Belize.Methods: In 2011, a national probability-based survey was completed among Belizean nonpregnant WCBA aged 15-49 y...
April 12, 2017: Journal of Nutrition
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