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https://www.readbyqxmd.com/read/29241160/microparticles-in-red-cell-concentrates-prime-polymorphonuclear-neutrophils-and-cause-acute-lung-injury-in-a-two-event-mouse-model
#1
Rufeng Xie, Yiming Yang, Yueyue Zhu, Li Gao, Xueyu Jiang, Juan Sun, Maohong Bian, Jie Yang
Red cell-derived microparticles (RMPs) are potential mediators of transfusion-related acute lung injury (TRALI). The aim of this study was to investigate the effects of microparticles present in red cell concentrates (RCC) on polymorphonuclear neutrophil (PMN) respiratory burst and acute lung injury (ALI) in mice. Microparticles (MPs) in RCC supernatant were quantified using flow cytometry. The priming activity of either isolated MPs or RCC supernatant toward human PMN was measured in vitro. Mice were injected with lipopolysaccharide (LPS), followed by an infusion of either isolated MPs or heat-treated RCC supernatant...
December 11, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29205259/cd34-selected-stem-cell-boosts-can-improve-poor-graft-function-after-paediatric-allogeneic-stem-cell-transplantation
#2
Chiara Mainardi, Martin Ebinger, Sigrid Enkel, Tobias Feuchtinger, Heiko-Manuel Teltschik, Matthias Eyrich, Michael Schumm, Armin Rabsteyn, Patrick Schlegel, Christian Seitz, Carl-Phillip Schwarze, Ingo Müller, Johann Greil, Peter Bader, Paul-Gerhardt Schlegel, David Martin, Ursula Holzer, Michaela Döring, Rupert Handgretinger, Peter Lang
Poor graft function (PGF) is a severe complication of haematopoietic stem cell transplantation (HSCT) and administration of donor stem cell boosts (SCBs) represents a therapeutic option. We report 50 paediatric patients with PGF who received 61 boosts with CD34+ selected peripheral blood stem cells (PBSC) after transplantation from matched unrelated (n = 25) or mismatched related (n = 25) donors. Within 8 weeks, a significant increase in median neutrophil counts (0·6 vs. 1·516 × 109 /l, P < 0·05) and a decrease in red blood cell and platelet transfusion requirement (median frequencies 1 and 7 vs...
December 3, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/29196075/outcomes-after-allogeneic-transplant-in-patients-with-wiskott-aldrich-syndrome
#3
Alexander Ngwube, I Celine Hanson, Jordan Orange, Nicholas L Rider, Filiz Seeborg, William Shearer, Lenora Noroski, Sarah Nicholas, Lisa Forbes, Kathryn Leung, Ghadir Sasa, Swati Naik, Meenakshi Hegde, Bilal Omer, Nabil Ahmed, Carl Allen, Stephen Gottschalk, Meng-Fen Wu, Hao Liu, Malcolm Brenner, Helen Heslop, Robert Krance, Caridad Martinez
Wiskott-Aldrich syndrome (WAS) is a rare X-linked disorder characterized by a triad of immunodeficiency, eczema and thrombocytopenia. Currently, hematopoietic stem cell transplant (HSCT) is the most reliable curative treatment with excellent results for patients with HLA-matched family or unrelated donors. However, even after fully myeloablative preparative regimens, mixed donor chimerism is a potential concern. We performed a retrospective chart review of twelve children who underwent allogeneic hematopoietic stem cell transplant for WAS to report our experience...
November 28, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29174474/iron-overload-in-hematological-disorders
#4
REVIEW
Eitan Fibach, Eliezer A Rachmilewitz
While most common symptom of impairment of iron homeostasis is iron deficiency anemia, some hematological disorders are associated with iron overload (IO). These disorders are related mainly to chronic severe hemolytic anemia, where red blood cells (RBC) or their precursors are destroyed prematurely (hemolyzed), leading to anemia that cannot be compensated by increased production of new RBC. In such cases, IO is mainly due to repeated RBC transfusions and/or increased uptake of iron in the gastrointestinal tract...
December 2017: La Presse Médicale
https://www.readbyqxmd.com/read/29166733/-comparative-study-on-the-efficacy-and-safety-between-pegfilgrastim-peg-rhg-csf-and-recombinant-human-granulocyte-colony-stimulating-factor-in-promoting-hematopoietic-recovery-after-allogeneic-hematopoietic-stem-cell-transplantation-after-hematological-malignancy
#5
F Yang, X D Sun, L Yuan, J C Zhang, J W Hu, N Liu, X Lou, Y F Su, Z Y Yu, J L Chen, Y H Li, L D Hu, H Chen, M Jiang
Objective: To observe the efficacy and safety between Pegfilgrastim (PEG-rhG-CSF) and Recombinant human granulocyte colony stimulating factor (rhG-CSF) in hematological malignancy after allogeneic hematopoietic stem cell transplantation (allo-HSCT) . Methods: 157 patients after allo-HSCT were enrolled in this study from June 2015 to November 2016. Two agents of G-CSF were used to stimulate hematopoietic recovery after transplantation. There were 65 cases in PEG-rhG-CSF and 92 cases in rhG-CSF groups. Patients in PEG-rhG-CSF group were given a single subcutaneous dose of 6 mg on the first day and +8 d, while cases in rhG-CSF group were given in dose of 5 μg·kg(-1)·d(-1) by subcutaneous injection from +1 d continuing to neutrophils more than 1...
October 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29163550/evaluation-of-alpha-1-antitrypsin-levels-and-serpina1-gene-polymorphisms-in-sickle-cell-disease
#6
Magda Oliveira Seixas Carvalho, André Luís Carvalho Santos Souza, Mauricio Batista Carvalho, Ana Paula Almeida Souza Pacheco, Larissa Carneiro Rocha, Valma Maria Lopes do Nascimento, Camylla Vilas Boas Figueiredo, Caroline Conceição Guarda, Rayra Pereira Santiago, Adekunle Adekile, Marilda de Souza Goncalves
Alpha-1 antitrypsin (AAT) is an inhibitor of neutrophil elastase and a member of the serine proteinase inhibitor (serpin) superfamily, and little is known about its activity in sickle cell disease (SCD). We hypothesize that AAT may undergo changes in SCD because of the high oxidative stress and inflammation associated with the disease. We have found high AAT levels in SCD patients compared to controls, while mutant genotypes of SERPINA1 gene had decreased AAT levels, in both groups. AAT showed negative correlation with red blood cells, hemoglobin (Hb), hematocrit, high-density lipoprotein cholesterol, urea, creatinine, and albumin and was positively correlated with mean corpuscular Hb concentration, white blood cells, neutrophils, Hb S, bilirubin, lactate dehydrogenase, ferritin, and C-reactive protein...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29144508/ly6g-neutrophil-derived-mir-223-inhibits-the-nlrp3-inflammasome-in-mitochondrial-damp-induced-acute-lung-injury
#7
Zunyong Feng, Shimei Qi, Yue Zhang, Zhilin Qi, Liang Yan, Jing Zhou, Fang He, Qianqian Li, Yanyan Yang, Qun Chen, Shi Xiao, Qiang Li, Yang Chen, Yao Zhang
MicroRNA (miRNA) mediates RNA interference to regulate a variety of innate immune processes, but how miRNAs coordinate the mechanisms underlying acute lung injury/acute respiratory distress syndrome (ALI/ARDS) in patients with pulmonary inflammatory injury is still unknown. In this study, we demonstrated that miR-223 limits the number of Ly6G+ neutrophils and inhibits the activity of the NLRP3 inflammasome to alleviate ALI induced by mitochondrial damage-associated molecular patterns (DAMPs) (MTDs). miR-223 expression is increased in the lungs of MTD-induced mice or ARDS patients following trauma/transfusion or following the physiological remission of ALI/ARDS...
November 16, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29114967/effect-of-intravenous-immunoglobulin-administration-on-erythrocyte-and-leukocyte-parameters
#8
A Cicha, M B Fischer, A Wesinger, S Haas, W M Bauer, H M Wolf, K M T Sauerwein, B Reininger, P Petzelbauer, H Pehamberger, A Handisurya
BACKGROUND: Intravenous immunoglobulins (IVIG) are an attractive therapeutic tool for therapy of toxic epidermal necrolysis and severe forms of certain autoimmune diseases, including dermatomyositis, autoimmune blistering diseases, systemic vasculitis, and lupus erythematodes. OBJECTIVE: Prompted by a case of IVIG-associated haemolytic anaemia, the effects of IVIG administrations on haematological parameters in patients with dermatological conditions were investigated...
November 8, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29075068/the-impact-of-transfusion-and-chelation-on-oxidative-stress-in-immigrant-syrian-children-with-%C3%AE-thalassemia
#9
Meriç Kaymak Cihan, Burcu Belen, Fatih Bolat, Özlem Gümüştekin Bülbül, Elif Ünver Korgalı, Ülker Koçak
Iron overload in β-thalassemia major and intermedia patients leads to oxidative stress and causes to formation of lipid hydroperoxides. Thiobarbituric acid reactive substances (TBARS) are a well established method for screening and monitoring of lipid peroxidation. We aimed to investigate serum TBARS and its relationship with biochemical and hematologic parameters of Turkish and immigrant Syrian β-thalassemia children reflecting the effects of this socioeconomic condition on follow up of these patients. Lipid peroxidation products (TBARS) of Turkish (TR) (n = 62, from the cities of Gaziantep and Sivas, Turkey) and Syrian (SYR) (n = 34, from Gaziantep, Turkey) β-thalassemia patients aged 2-17 years and 58 healthy subjects aged 2-16 years were studied...
December 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/29064872/no-differences-in-renal-function-between-balanced-6-hydroxyethyl-starch-130-0-4-and-5-albumin-for-volume-replacement-therapy-in-patients-undergoing-cystectomy-a-randomized-controlled-trial
#10
RANDOMIZED CONTROLLED TRIAL
Tobias Kammerer, Florian Brettner, Sebastian Hilferink, Nikolai Hulde, Florian Klug, Judith Pagel, Alexander Karl, Alexander Crispin, Klaus Hofmann-Kiefer, Peter Conzen, Markus Rehm
BACKGROUND: The use of artificial colloids has declined in critical care, whereas they are still used in perioperative medicine. Little is known about the nephrotoxic potential in noncritically ill patients during routine surgery. The objective of this trial was to evaluate the influences of albumin 5% and balanced hydroxyethyl starch 6% (130/0.4) on renal function and kidney injury. METHODS: One hundred urologic patients undergoing elective cystectomy were randomly assigned for this prospective, single-blinded, controlled study with two parallel groups to receive either albumin 5% or balanced hydroxyethyl starch 6% (130/0...
January 2018: Anesthesiology
https://www.readbyqxmd.com/read/29057627/genotype-frequencies-of-human-neutrophil-antigen-3-in-the-chinese-zhuang-and-dong-populations
#11
X Liao, H Li, W Jiao, C Zhu, W Wang, Z Mo, Z Yang, Z Zhu
Individuals with the human neutrophil antigen (HNA)-3b/3b type can produce HNA-3a antibodies, which have been reported to cause severe, sometimes fatal transfusion-related acute lung injury (TRALI). Our study aimed to determine the genotype frequency of HNA-3a/3b which will be helpful to estimate the potential risk for forming anti-HNA-3a, the clinically relevant antibody linked to TRALI in two different ethnic groups of southern China. Five hundred unrelated and healthy blood donors (284 male, 216 female; 300 Zhuangs, 200 Dongs) from the Guangxi Zhuang Autonomous Region were simultaneously typed for the HNA-3 allele using a polymerase chain reaction sequence-based typing (PCR-SBT) method...
October 22, 2017: International Journal of Immunogenetics
https://www.readbyqxmd.com/read/28988427/hydroxyurea-therapy-in-uk-children-with-sickle-cell-anaemia-a-single-centre-experience
#12
Kate Phillips, Laura Healy, Louise Smith, Russell Keenan
INTRODUCTION: Despite the demonstrated efficacy of hydroxyurea therapy, children with sickle cell anaemia in the UK are preferentially managed with supportive care or transfusion. Hydroxyurea is reserved for children with severe disease phenotype. This is in contrast to North America and other countries where hydroxyurea is widely used for children of all clinical phenotypes. The conservative UK practice may in part be due to concerns about toxicity, in particular marrow suppression with high doses, and growth in children...
October 8, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28924483/thyroidectomy-for-the-treatment-of-graves-thyrotoxicosis-in-thioamide-induced-agranulocytosis-and-sepsis
#13
Colin L Knight, Shamil D Cooray, Jaideep Kulkarni, Michael Borschmann, Mark Kotowicz
A 51 year old man presented with sepsis in the setting of thioamide-induced agranulocytosis. Empiric broad-spectrum antibiotics was followed by directed narrow-spectrum antibiotics, and his neutrophil count recovered with support from granulocyte-colony stimulating factor (G-CSF) analogue transfusions. After a brief period of multi-modal therapy for nine days including potassium iodide (Lugol's iodine), cholestyramine, propanolol and lithium to temper his persisting hyperthyroidism, a total thyroidectomy was performed while thyroid hormone levels remained at thyrotoxic levels...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28882010/invasive-candidiasis-in-the-neutropenic-patient
#14
REVIEW
J Fortún, F Gioia
There are major differences in the epidemiology and prognosis of invasive candidiasis and candidemia in the neutropenic patient; however, a recent study performed in Spanish hospitals (Candipop) confirmed that mortality at 1 month is 30%, which is similar to that observed in the general population. Although Candida albicans is the most frequently isolated species, C. tropicalis, C. glabrata, and C. krusei are more prevalent than in non-neutropenic patients. The benefit of neutrophil transfusion is unclear, and catheter withdrawal must be tailored and based on confirmation of the diagnosis...
September 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28880378/leukocyte-and-plasma-activation-profiles-in-chronically-transfused-patients-with-a-history-of-allergic-reactions
#15
Magali J Fontaine, Hank Shih, Richard Schubert, Wendy Wong, Jennifer Andrews, Michael Jeng, Rabindra Tirouvanziam
BACKGROUND: Allergic transfusion reactions are drawbacks to the benefits of transfusion. Classically, allergic transfusion reactions depend on histamine release from mast cells or basophils, but other leukocyte subsets may also be important. Thus, we propose to better define the exact leukocyte subsets involved in allergic transfusion reactions. STUDY DESIGN AND METHODS: The overall objective of the current study was to compare the activation of specific peripheral blood leukocyte subsets (monocytes, neutrophils, eosinophils, and basophils) in a cohort of 13 patients who received chronic transfusions and had a history of allergic transfusion reactions compared with a control group of patients who received chronic transfusions and had no history of allergic transfusion reactions...
September 6, 2017: Transfusion
https://www.readbyqxmd.com/read/28880373/supernatants-and-lipids-from-stored-red-blood-cells-activate-pulmonary-microvascular-endothelium-through-the-blt2-receptor-and-protein-kinase-c-activation
#16
Christopher C Silliman, Marguerite R Kelher, Samina Y Khan, F Bernadette West, Nathan J D McLaughlin, David J Elzi, Kelly England, Jason Bjornsen, Susan A Kuldanek, Anirban Banerjee
BACKGROUND: Although transfusion is a lifesaving intervention, it may be associated with significant morbidity in injured patients. We hypothesize that stored red blood cells (RBCs) induce proinflammatory activation of human pulmonary microvascular endothelial cells (HMVECs) resulting in neutrophil (PMN) adhesion and predisposition to acute lung injury (ALI). STUDY DESIGN AND METHODS: Ten units of RBCs were collected; 50% (by weight) were leukoreduced (LR-RBCs) and the remainder was unmodified and stored in additive solution-5 (AS-5)...
September 6, 2017: Transfusion
https://www.readbyqxmd.com/read/28875009/abo-incompatibility-and-hematopoietic-stem-cell-transplantation-outcomes
#17
Mohammad Vaezi, Davoud Oulad Dameshghi, Maryam Souri, Seyed Amin Setarehdan, Kamran Alimoghaddam, Ardeshir Ghavamzadeh
Introduction: The increased risk of hemolytic reactions and erythrocyte recovery delay in ABO incompatible hematopoietic stem cell transplantation (HSCT) are well established. Effects of ABO incompatibility on other transplantation outcomes are evaluated in this study. Subjects and Methods: We prospectively followed 501 patients undergoing allogeneic stem cell transplantation regarding their ABO compatibility groups for a median time of 34.7 months. Patients were studied in minor, major and bidirectional mismatched and matched groups...
April 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/28864336/analysis-of-transfusion-related-acute-lung-injury-and-possible-transfusion-related-acute-lung-injury-reported-to-the-french-hemovigilance-network-from-2007-to-2013
#18
REVIEW
Georges Andreu, Karim Boudjedir, Jean-Yves Muller, Elodie Pouchol, Yves Ozier, Guillaume Fevre, Chantal Gautreau, Jean-François Quaranta, Christian Drouet, Claire Rieux, Paul-Michel Mertes, Benoit Clavier, Monique Carlier, Imad Sandid
Using the French Hemovigilance Network database from 2007 to 2013, we provide information on demographics, incidence, and risk factors of reported transfusion-related acute lung injury (TRALI) and possible TRALI, analyze TRALI mitigation efforts for fresh frozen plasma and platelet concentrates, and consider the impact of platelet additive solutions on TRALI incidence. We applied the Toronto consensus conference definitions for TRALI and possible TRALI. Two TRALI subgroups were considered: "antibody positive" when a donor has human leukocyte antigen (class I or II) and/or human neutrophil antigen antibodies and the recipient has cognate antigen, and "antibody negative" when immunological investigation is negative or not done...
July 15, 2017: Transfusion Medicine Reviews
https://www.readbyqxmd.com/read/28861306/the-predictive-value-of-platelet-to-lymphocyte-and-neutrophil-to-lymphocyte-ratio-in-determining-urethral-stricture-after-transurethral-resection-of-prostate
#19
Murat Gül, Emre Altıntaş, Mehmet Kaynar, Muhammet Serdar Buğday, Serdar Göktaş
OBJECTIVE: The pathology of urethral stricture disease is still unclear however progressive inflammation may contribute to the development of urethral stricture. The platelet-to- lymphocyte ratio (PLR) is a new and simple marker that indicates inflammation. In this study we aimed to investigate the predictive value of neutrophil to lymphocyte ratio (NLR) and PLR in patients with urethral stricture who underwent transurethral resection of prostate (TURP). MATERIAL AND METHODS: A total of 208 patients who underwent bipolar-TURP were included in this study...
September 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/28846568/impact-of-blood-mixing-and-abo-compatibility-on-platelet-leukocyte-aggregations-and-platelet-p-selectin-expression-an-in-vitro-study
#20
Go-Shine Huang, Mei-Hua Hu, Tso-Chou Lin, Yi-Ting Tsai, Chih-Yuan Lin, Hung-Yen Ke, Xu-Zhi Zheng, Yi-Chang Lin, Chien-Sung Tsai
Effects of blood transfusions on platelet-related and leukocyte-related inflammation are unclear. We simulated transfusion using in vitro blood mixing to evaluate platelet-leukocyte aggregations (PLA) and platelet P-selectin expression, and the mechanism of PLA. Donor packed red blood cells (pRBCs) were obtained from a blood bank. Recipient whole blood samples were obtained from patients undergoing cardiac surgery. Blood sample mixtures were divided into four groups: group M, cross-matched blood type mixing; group O, donor type O with other blood type mixing (A, B, or AB); group S, ABO type-specific uncross-matched blood mixing; and group I, ABO incompatibility mixing...
August 25, 2017: Shock
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