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https://www.readbyqxmd.com/read/28809726/clinical-and-laboratory-associations-with-persistent-hyperferritinemia-in-373-black-hemochromatosis-and-iron-overload-screening-study-participants
#1
James C Barton, J Clayborn Barton, Paul C Adams
BACKGROUND: 373 black participants had elevated screening and post-screening serum ferritin (SF) (> 300 μg/L men; > 200 μg/L women). MATERIAL AND METHODS: We retrospectively studied SF and post-screening age; sex; body mass index; transferrin saturation (TS); ALT; AST; GGT; elevated C-reactive protein; ß-thalassemia; neutrophils; lymphocytes; monocytes; platelets; metacarpophalangeal joint hypertrophy; hepatomegaly; splenomegaly; diabetes; HFE H63D positivity; iron/alcohol intakes; and blood/erythrocyte transfusion units...
August 8, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/28804627/effect-of-rapamycin-on-early-stage-apoptosis-of-neutrophils-in-sprague-dawley-rats-with-acute-lung-injury
#2
Liwei Li, Changtai Zhu, Ye Yuan, Zhiqiang Li
Transfusion-related acute lung injury (TRALI) is a serious complication characterized by the acute onset of non-cardiogenic pulmonary edema following transfusion of blood products. It is not known whether rapamycin has an effect on TRALI that is caused by blood transfusion. The aim of the present study was to determine the effect of rapamycin on early stage apoptosis of neutrophils in Sprague-Dawley rats with acute lung injury. Animal models of TRALI and acute pancreatitis-associated lung injury (APALI) were prepared using Sprague-Dawley rats and histopathological examination of lung tissues was used to validate acute lung injury models...
August 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28803258/the-impact-of-antimicrobial-prophylaxis-in-morbidity-and-infections-during-azacitidine-treatment
#3
Natalia Lorenzana, Laura Francisca Avila, Sara Alonso, Enrique Colado, Teresa Bernal
The clinical consequences of the infectious events in patients receiving azacitidine are poorly documented. Likewise, the role of primary antimicrobial prophylaxis is unknown. In this retrospective, single-center study, we compare the impact of prophylaxis on the incidence of infection and morbidity in all consecutive higher-risk myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML) patients, during the first 4 azacitidine cycles. Seventy-six patients, corresponding to 283 azacitidine cycles, were studied...
August 13, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28800730/genotypes-of-hepatitis-a-virus-in-turkey-first-report-and-clinical-profile-of-children-infected-with-sub-genotypes-ia-and-iiia
#4
Huseyin Yilmaz, Asiye Karakullukcu, Nuri Turan, Utku Y Cizmecigil, Aysun Yilmaz, Ayse A Ozkul, Ozge Aydin, Alper Gunduz, Mahmut Mete, Fadile Y Zeyrek, Taner T Kirazoglu, Juergen A Richt, Bekir Kocazeybek
BACKGROUND: Hepatitis A virus (HAV) is a food and water-borne virus causing clinical (mainly hepatitis) and subclinical disease in humans. It is important to characterize circulating strains of HAV in order to prevent HAV infections using efficacious vaccines. The aim of this study was the detection and characterization of the circulating strains of HAV in Turkey by performing serology, RT-PCR, sequencing and phylogenetic analysis. METHODS: In this study, 355 HAV suspected cases were analysed by ELISA for the presence of antibodies to HAV...
August 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28797785/granulocyte-transfusions-a-critical-reappraisal
#5
REVIEW
Caterina Giovanna Valentini, Francesca Farina, Livio Pagano, Luciana Teofili
Granulocyte transfusions (GTs) are seldom used as a life-saving therapy for neutropenic patients with severe infections. Despite several compelling evidences of GT efficacy in retrospective and prospective case series, no study has been successful in demonstrating a definite advantage for recipients in controlled clinical trials. This review will critically revise some aspects emerging from the past experience which might have weakened the evidence of GT benefits. Some specific issues relevant to the efficacy of this therapeutic approach, such as the primary infection, the delivered doses and schedules, and the immunological effects of GTs, will be discussed...
August 7, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28766731/microparticles-from-stored-red-blood-cells-enhance-procoagulant-and-proinflammatory-activity
#6
Dania Fischer, Julian Büssow, Patrick Meybohm, Christian Friedrich Weber, Kai Zacharowski, Anja Urbschat, Markus Matthias Müller, Carla Jennewein
BACKGROUND: The pathomechanisms of morbidity due to blood transfusions are not yet entirely understood. Elevated levels of red blood cell-derived microparticles (RMPs) are found in coagulation-related pathologies and also in stored blood. Previous research has shown that RMPs mediate transfusion-related complications by the intrinsic pathway. We hypothesized that RMPs might play a role in post-transfusion thrombotic complications by enhancing procoagulant activity also through the extrinsic pathway of coagulation...
August 2, 2017: Transfusion
https://www.readbyqxmd.com/read/28740457/perioperative-increase-in-neutrophil-cd64-expression-is-an-indicator-for-intra-abdominal-infection-after-colorectal-cancer-surgery
#7
Milena Kerin Povsic, Bojana Beovic, Alojz Ihan
BACKGROUND: Colorectal surgery is associated with a high incidence of postoperative infections. Early clinical signs are difficult to distinguish from the systemic inflammatory response related to surgical trauma. Timely diagnosis may significantly improve the outcome. The objective of this study was to compare a new biomarker index CD64 for neutrophils (iCD64n) with standard biomarkers, white blood cell (WBC) count, neutrophil/lymphocyte ratio (NLR), C-reactive protein (CRP) and procalcitonin (PCT) for the early detection of postoperative infection...
June 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/28703920/neutrophil-specific-antigens-immunobiology-and-implications-in-transfusion-medicine-and-blood-disorders
#8
Parviz Lalezari
No abstract text is available yet for this article.
July 13, 2017: Transfusion
https://www.readbyqxmd.com/read/28700636/large-scale-ex-vivo-generation-of-human-neutrophils-from-cord-blood-cd34-cells
#9
Zhenwang Jie, Yu Zhang, Chen Wang, Bin Shen, Xin Guan, Zhihua Ren, Xinxin Ding, Wei Dai, Yongping Jiang
Conventional high-dose chemotherapy frequently leads to severe neutropenia, during which patients experience a high risk of infection. Although support care with donor's neutrophils is possible this choice is largely hampered by the limited availability of matched donors. To overcome this problem, we explored a large-scale ex vivo production of neutrophils from hematopoietic stem cells (HSCs) using a four-stage culture approach in a roller-bottle production platform. We expanded CD34+ HSCs isolated from umbilical cord blood (UCB) using our in-house special medium supplemented with cytokine cocktails and achieved about 49000-fold expansion of cells, among which about 61% were differentiated mature neutrophils...
2017: PloS One
https://www.readbyqxmd.com/read/28698751/analysis-of-factors-that-influence-hematopoietic-recovery-in-autologous-transplanted-patients-with-hematopoietic-stem-cells-from-peripheral-blood
#10
Rada M Grubovic, Borce Georgievski, Lidija Cevreska, Sonja Genadieva-Stavric, Milos R Grubovic
BACKGROUND: Successful hematopoietic stem cell transplantation (HSCT) requires a rapid and durable hematopoietic recovery. AIM: The aim of our study was to analyse factors that influence hematopoietic recovery after autologous HSCT. MATERIALS AND METHODS: Multiple regression analysis was used to analyse factors affecting neutrophil and platelet engraftment in 90 autologous transplanted patients - 30 with acute myeloid leukaemia (AML), 30 with lymphoma and 30 with multiple myeloma (MM) from 2008 till 2016...
June 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28679990/myelodysplastic-syndrome-with-neutrophilic-dermatosis-successfully-treated-with-azacitidine
#11
Daisuke Kudo, Misayo Shimizu, Akihiro Kuroda, Takuya Suyama, Atsushi Shinagawa, Syusaku Ito
A 66-year-old male underwent prednisolone (PSL) therapy of 13 mg/day for rheumatoid arthritis (RA). Antiphospholipid antibody syndrome, neutrophilic dermatosis (ND), and myelodysplastic syndrome (MDS) developed. Treatment of MDS required red cell concentrate transfusion, and second courses of azacitidine therapy (75 mg/m(2) daily, intravenous injection for 7 consecutive days) led to hematologic remission. Furthermore, ND improved early after the start of azacitidine therapy, making it possible to decrease the dose of PSL...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28620491/pseudo-thrombotic-thrombocytopenic-purpura-presenting-as-multi-organ-dysfunction-syndrome-a-rare-complication-of-pernicious-anemia
#12
Saroj Kandel, Nibash Budhathoki, Shanta Pandey, Bikash Bhattarai, Aam Baqui, Ramesh Pandey, Divya Salhan, Danilo Enriquez, Joseph Quist, Frances M Schmidt
OBJECTIVE: We present a rare case of pernicious anemia presented as multi-organ dysfunction syndrome, later found to have pseudo-thrombotic thrombocytopenic purpura. METHODS: An 86-year-old female presented with respiratory distress, altered mental status, acute renal failure and was intubated in emergency room. She was found to have severe anemia, thrombocytopenia, high lactate, high lactate dehydrogenase and low haptoglobin. Peripheral smear revealed multilobulated neutrophils with schistocytes, poikilocytes and anisocytes...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28608441/transfusion-related-acute-lung-injury-critical-neutrophil-activation-by-anti-hla-a2-antibodies-for-endothelial-permeability
#13
Kathy Khoy, Minh Vu Chuong Nguyen, Dominique Masson, Béatrice Bardy, Christian Drouet, Marie-Hélène Paclet
BACKGROUND: Transfusion-related acute lung injury (TRALI) is a major complication of hemotherapy that may occur after the transfusion of any blood type component. Several clinical reports have suggested the presence of anti-HLA antibodies in the blood product. This study sought to examine the role of anti-HLA-A2 antibodies in polymorphonuclear neutrophil (PMN) activation and thus in endothelial permeability. STUDY DESIGN AND METHODS: PMN activation was assessed by both nicotinamide adenine dinucleotide phosphate oxidase (NADPH oxidase) activity and reactive oxygen species (ROS) production...
June 13, 2017: Transfusion
https://www.readbyqxmd.com/read/28603827/prognostic-factors-predicting-overall-survival-in-moroccan-patients-with-myelodysplastic-syndrome
#14
Selim Jennane, Sanae Amelal, Mahtat El Mehdi, Samir Ahid, Nezha Messaoudi, Kamal Doghmi, Mohammed Mikdame
BACKGROUND: Prognostic scores are an indispensable tool in the management of myelodysplastic syndromes. AIM: Identify prognostic factors influencing overall survival of patients with myelodysplastic syndromes. METHODS: We included all patients with myelodysplastic syndromes treated in the clinical hematology department of the military hospital of Rabat (Morocco). RESULTS: Seventy-four patients were included. The sex ratio [M / F] was 1...
August 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/28589653/assessment-of-hna-alloimmunisation-risk-in-northeastern-thais-burmese-and-karen
#15
P Simtong, C Puapairoj, C Leelayuwat, S Santoso, A V Romphruk
OBJECTIVES: This study aimed to determine human neutrophil antigen (HNA) frequency, estimate possible HNA incompatibilities and predict the risk of HNA alloimmunisation in the Northeastern Thai, Burmese and Karen populations. BACKGROUND: Alloantibodies against HNA are implicated in a number of clinical conditions, including immune-mediated neutropenia and transfusion reactions. METHODS: A total of 400 unrelated healthy Thais, 261 Burmese and 249 Karen was included in this study...
June 7, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28570672/mirasol-pathogen-reduction-technology-treatment-of-human-whole-blood-does-not-induce-acute-lung-injury-in-mice
#16
Beñat Mallavia, Nicholas Kwaan, Susanne Marschner, Susan Yonemura, Mark R Looney
In resource-limited settings and in the military theater, fresh human whole blood is commonly transfused, but infectious risks are a concern. Sophisticated molecular testing for potential infectious agents in the whole blood is often unavailable. To address this unmet need, pathogen reduction technology (PRT) has been developed, and it is an effective approach to inactivate a broad range of pathogens found in human blood. However, studies are needed to determine if it is harmful to blood cells and whether these cells could damage the transfused recipient, including the development of acute lung injury/acute respiratory distress syndrome...
2017: PloS One
https://www.readbyqxmd.com/read/28548643/condensed-versus-standard-schedule-of-high-dose-cytarabine-consolidation-therapy-with-pegfilgrastim-growth-factor-support-in-acute-myeloid-leukemia
#17
S Jaramillo, A Benner, J Krauter, H Martin, T Kindler, M Bentz, H R Salih, G Held, C-H Köhne, K Götze, M Lübbert, A Kündgen, P Brossart, M Wattad, H Salwender, B Hertenstein, D Nachbaur, G Wulf, H-A Horst, H Kirchen, W Fiedler, A Raghavachar, G Russ, S Kremers, E Koller, V Runde, G Heil, D Weber, G Göhring, K Döhner, A Ganser, H Döhner, R F Schlenk
The aim of this cohort study was to compare a condensed schedule of consolidation therapy with high-dose cytarabine on days 1, 2 and 3 (HDAC-123) with the HDAC schedule given on days 1, 3 and 5 (HDAC-135) as well as to evaluate the prophylactic use of pegfilgrastim after chemotherapy in younger patients with acute myeloid leukemia in first complete remission. One hundred and seventy-six patients were treated with HDAC-135 and 392 patients with HDAC-123 with prophylactic pegfilgrastim at days 10 and 8, respectively, in the AMLSG 07-04 and the German AML Intergroup protocol...
May 26, 2017: Blood Cancer Journal
https://www.readbyqxmd.com/read/28535135/recovery-from-cyclophosphamide-overdose-in-a-dog
#18
Jessica Renee Finlay, Kenneth Wyatt, Courtney North
An adult female spayed dog was evaluated after inadvertently receiving a total dose of 1,750 mg oral cyclophosphamide, equivalent to 2,303 mg/m(2), over 21 days (days -21 to 0). Nine days after the last dose of cyclophosphamide (day +9), the dog was evaluated at Perth Veterinary Specialists. Physical examination revealed mucosal pallor, a grade 2/6 systolic heart murmur, and severe hemorrhagic cystitis. Severe nonregenerative pancytopenia was detected on hematology. Broad spectrum antibiotics, two fresh whole blood transfusions, granulocyte colony stimulating factor, and tranexamic acid were administered...
May 23, 2017: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/28515091/angiotensin-converting-enzyme-enhances-the-oxidative-response-and-bactericidal-activity-of-neutrophils
#19
Zakir Khan, Xiao Z Shen, Ellen A Bernstein, Jorge F Giani, Masahiro Eriguchi, Tuantuan V Zhao, Romer A Gonzalez-Villalobos, Sebastien Fuchs, George Y Liu, Kenneth E Bernstein
Angiotensin-converting enzyme (ACE) inhibitors are widely used to reduce blood pressure. Here, we examined if an ACE is important for the antibacterial effectiveness of neutrophils. ACE knockout mice or mice treated with an ACE inhibitor were more susceptible to bacterial infection by methicillin-resistant Staphylococcus aureus (MRSA). In contrast, mice overexpressing ACE in neutrophils (Neu(ACE) mice) have increased resistance to MRSA and better in vitro killing of MRSA, Pseudomonas aeruginosa, and Klebsiella pneumoniae ACE overexpression increased neutrophil production of reactive oxygen species (ROS) following MRSA challenge, an effect independent of the angiotensin II AT1 receptor...
July 20, 2017: Blood
https://www.readbyqxmd.com/read/28446307/-effect-of-abo-incompatibility-on-outcome-of-allogeneic-hematopoietic-stem-cell-transplantation
#20
Bing-Bing Yang, Yi-Feng Gan, Peng Chen, Yi Chen, Kang Yu
OBJECTIVE: To investigate the effect of ABO-incompatibility on the efficacy and complications of allogeneic hematopoietic stem cell transplantation(HSCT). METHODS: The clinical data of 54 recipients who received ABO-incompatible allo-HSCT were retrospectively analyzed and were compared with 54 ABO-identical recipients as controls. Hematopoietic reconstruction and the blood type conversion time were dynamically observed and compared between 2 groups. RESULTS: The time of erythrocyte reconstitution was prolonged to 24 d in ABO-incompatible group, compared with that of 19 d in ABO-compatible group (P<0...
April 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
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