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https://www.readbyqxmd.com/read/28535135/recovery-from-cyclophosphamide-overdose-in-a-dog
#1
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/28534709/mdscs-are-involved-in-the-protumorigenic-potentials-of-gm-csf-in-colitis-associated-cancer
#2
Ning Ma, Qilin Liu, Lin Hou, Yalin Wang, Ziling Liu
Chronic inflammation is thought to be a major driving force for the development of colitis-associated colorectal cancer (CAC). As one member of proinflammatory cytokine family, granulocyte macrophage colony-stimulating factor (GM-CSF) has been identified to play a key role in CAC pathogenesis recently. The underlying mechanisms, however, remain largely unknown. In this study, we found that myeloid-derived suppressor cells (MDSCs) accumulated increasingly in the lesions during the progression from colitis to cancer, which was critical for CAC formation...
May 1, 2017: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/28515091/angiotensin-converting-enzyme-enhances-the-oxidative-response-and-bactericidal-activity-of-neutrophils
#3
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 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 S. aureus (MRSA). In contrast, mice over expressing ACE in neutrophils (Neu(ACE) mice) have increased resistance to MRSA, and better in vitro killing of MRSA, P. aeruginosa, and K. pneumoniae ACE overexpression increased neutrophil production of reactive oxygen species (ROS) following MRSA challenge, an effect independent of the angiotensin II AT1 receptor...
May 17, 2017: Blood
https://www.readbyqxmd.com/read/28514773/a-feasibility-study-of-the-full-outpatient-conduction-of-hematopoietic-transplants-in-persons-with-multiple-sclerosis-employing-autologous-non-cryopreserved-peripheral-blood-stem-cells
#4
Guillermo J Ruiz-Argüelles, Andrés A León-Peña, Mónica León-González, Ana Karen Nuñez-Cortes, Juan Carlos Olivares-Gazca, Iván Murrieta-Alvarez, Jocelyn Vargas-Espinosa, Emilio Medina-Ceballos, Yahveth Cantero-Fortiz, Alejandro Ruiz-Argüelles, Manuel A Ruiz-Delgado, Rodrigo J Ruiz-Delgado, Guillermo Ruiz-Reyes, Manuel Priesca-Marín, Merari Starlight Torres-Priego, David Blumenkron-Marroquin, Guillermo J Ruiz-Delgado
BACKGROUND: With the goal of achieving immune system reset, autologous hematopoietic stem cell transplantations have been performed in patients with multiple sclerosis (MS). MATERIAL AND METHODS: Two hundred and eighty-six consecutive patients with MS were autografted in a single center using non-frozen peripheral blood stem cells (PBSCs), on an outpatient basis and conditioning with cyclophosphamide and rituximab. The protocol was registered in ClinicalTrials.gov identifier NCT02674217...
May 18, 2017: Acta Haematologica
https://www.readbyqxmd.com/read/28423506/granulocyte-colony-stimulating-factor-enhances-the-therapeutic-efficacy-of-bone-marrow-mesenchymal-stem-cell-transplantation-in-rats-with-experimental-acute-pancreatitis
#5
Bo Qu, Yanjie Chu, Fang Zhu, Beibei Wang, Ting Liu, Bo Yu, Shizhu Jin
INTRODUCTION: Acute pancreatitis (AP) is one of the most common diseases involving necrotic inflammation. Bone marrow mesenchymal stem cells (BMMSCs) have the potential of multi-directional differentiation and self-renewal for tissue repair. It remains less clear if granulocyte colony-stimulating factor (G-CSF) can improve the therapeutic effect of BMMSC transplant in AP. Therefore, we explored this issue in a rat model of experimental AP. RESULTS: Transplanted PKH26-positive BMMSCs were present in the injured pancreatic tissue, with some cells co-expressed pancreatic cellular markers, including Pax-4, Ngn3 and Nkx-6...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28409093/first-case-of-invasive-magnusiomyces-capitatus-infection-in-slovakia
#6
Dominika Tanuskova, Julia Horakova, Peter Svec, Ivana Bodova, Martina Lengerova, Matej Bezdicek, Miroslava Poczova, Jozef Koppl, Alexandra Kolenova
Magnusiomyces capitatus (previously known as Geotrichum capitatum or Blastoschizomyces capitatus or Trichosporon capitatum) is a rare cause of fungal infection in immunocompromised patients. Most of these cases (87%) have been reported from the Mediterranean region, as it is extremely rare to recognize it in other regions. Here we report a first case of disseminated M. capitatus infection in Slovakia. The patient - 19 year old woman with myelodysplastic syndrome was diagnosed with M. capitatus fungemia after allogeneic stem cell transplantation...
June 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28361596/a-case-of-fatal-agranulocytosis-that-developed-in-a-patient-with-%C3%AE-thalassemia-major-treated-with-deferiprone
#7
Maria Mainou, Aggeliki Kotsiafti, Philippos Klonizakis, Vasiliki Soulountsi, Chrysoula Apostolou, Kiriakos Psarras, Efthymia Vlachaki
A 29-year-old male with transfusion-dependent β-thalassemia major (β-TM), splenectomized and on chelation therapy with deferiprone (DFP or L1) due to heart and liver hemosiderosis, presented with high fever and agranulocytosis. Deferiprone was discontinued and a broad spectrum antibiotic therapy was started intravenously. The patient remained febrile and showed no recovery of neutrophil count even after the initiation of granulocyte colony-stimulation factor (G-CSF). After 12 days at the hospital, he developed respiratory failure and was transferred to the intensive care unit (ICU) where he developed multi-organ failure and died 3 days later...
November 2016: Hemoglobin
https://www.readbyqxmd.com/read/28342916/granulocyte-transfusions-in-patients-with-chronic-granulomatous-disease-and-refractory-infections-the-nih-experience
#8
Beatriz E Marciano, Elisabeth S Allen, Cathy Conry-Cantilena, Ervand Kristosturyan, Harvey G Klein, Thomas A Fleisher, Steven M Holland, Harry L Malech, Sergio D Rosenzweig
No abstract text is available yet for this article.
March 22, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28314085/targeted-next-generation-sequencing-and-identification-of-risk-factors-in-world-health-organization-defined-atypical-chronic-myeloid-leukemia
#9
Mrinal M Patnaik, Daniela Barraco, Terra L Lasho, Christy M Finke, Kaaren Reichard, Katherine P Hoversten, Rhett P Ketterling, Naseema Gangat, Ayalew Tefferi
Atypical chronic myeloid leukemia (aCML) is an aggressive myeloid neoplasm with overlapping features of myelodysplastic syndromes (prominent granulocytic dysplasia) and myeloproliferative neoplasms (neutrophilic leukocytosis). We studied 25 molecularly-annotated and World Health Organization defined aCML patients; median age 70 years, 84% males. Cytogenetic abnormalities were seen in 36% and gene mutations in 100%. Mutational frequencies were, ASXL1 28%, TET2 16%, NRAS 16%, SETBP1 12%, RUNX1 12%, ETNK1 8%, and PTPN11 4%...
June 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28295178/granulocyte-transfusions-in-the-management-of-invasive-fungal-infections
#10
REVIEW
Kamille A West, Juan Gea-Banacloche, David Stroncek, Sameer S Kadri
Granulocyte transfusions have a long history of being used in patients with neutropenia or neutrophil dysfunction to prevent and treat invasive fungal infections. However, there are limited and conflicting data concerning its clinical effectiveness, considerable variations in current granulocyte transfusion practices, and uncertainties about its benefit as an adjunct to modern antifungal therapy. In this review, we provide an overview on granulocyte transfusions and summarize the evidence on their role in the prevention and treatment of invasive fungal infections...
May 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28187089/clinical-outcome-of-neoadjuvant-radiochemotherapy-in-locally-advanced-cervical-cancer-results-of-an-open-prospective-multicenter-phase-2-study-of-the-north-eastern-german-society-of-gynecological-oncology
#11
Dominique Koensgen, Jalid Sehouli, Antje Belau, Martin Weiss, Matthias B Stope, Vivien Grokopf, Michael Eichbaum, Peter Ledwon, Werner Lichtenegger, Marek Zygmunt, Günter Köhler, Alexander Mustea
OBJECTIVE: The aim of this study was to determine the response rate, toxicity, operability, and surgical complication rate of neoadjuvant concomitant radiochemotherapy (cRCH) (ifosfamide + carboplatin) followed by radical hysterectomy plus external-beam radiotherapy with curative intention in locally advanced primary inoperable stages IIB and IIIB squamous cell cervical cancer. METHODS: Patients with cervical cancer from 8 departments were enrolled. Patients received 3 cycles of ifosfamide 1...
March 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28178130/de-escalation-empirical-antibiotic-therapy-improved-survival-for-patients-with-severe-aplastic-anemia-treated-with-antithymocyte-globulin
#12
COMPARATIVE STUDY
Rong Fu, Tong Chen, Jia Song, Guojin Wang, Lijuan Li, Erbao Ruan, Hui Liu, Yihao Wang, Huaquan Wang, Limin Xing, Yuhong Wu, Hong Liu, Wen Qu, Zonghong Shao
We aimed to investigate the efficacy and safety of de-escalation empirical therapy for controlling infection in patients with severe aplastic anaemia (SAA) treated with antithymocyte globulin (ATG). Eighty-seven ATG-treated SAA patients who had microbiological culture-confirmed infections from 2006 to 2015 in our center were retrospectively analyzed. The efficacy of de-escalation and non-de-escalation therapy was compared. Among all 87 patients, 63 patients were treated with de-escalation therapy and 24 patients with non-de-escalation therapy...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28169418/allogeneic-transplantation-using-cd34-selected-peripheral-blood-progenitor-cells-combined-with-non-mobilized-donor-t%C3%A2-cells-for-refractory-severe-aplastic-anaemia
#13
Enkhtsetseg Purev, Xin Tian, Georg Aue, Jeremy Pantin, Phuong Vo, Reem Shalabi, Robert N Reger, Lisa Cook, Catalina Ramos, Elena Cho, Tat'yana Worthy, Hanh Khuu, David Stroncek, Neal S Young, Richard W Childs
Allogeneic haematopoietic stem cell transplantation is curative for severe aplastic anaemia (SAA) unresponsive to immunosuppressive therapy. To reduce chronic graft-versus-host disease (GVHD), which occurs more frequently after peripheral blood stem cell (PBSC) transplantation compared to bone-marrow transplantation (BMT), and to prevent graft rejection, we developed a novel partial T-cell depleted transplant that infuses high numbers of granulocyte colony-stimulating factor-mobilized CD34(+) selected PBSCs combined with a BMT-equivalent dose of non-mobilized donor T-cells...
March 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28164668/development-of-a-multiplex-pcr-for-human-neutrophil-antigens-1-3-4-and-5-genotyping-among-thai-blood-donors
#14
Oytip Nathalang, Kamphon Intharanut, Kanokpol Siriphanthong, Wiradee Sasikarn, Siriporn Nathalang
BACKGROUND: Different polymerase chain reaction (PCR) techniques for human neutrophil antigens (HNA) genotyping have been implemented to diagnose the clinical conditions of patients with alloimmune neutropenia, febrile non-hemolytic transfusion reactions, and transfusion-related acute lung injury and to provide effective HNAmatched granulocyte transfusions. The present study aimed to develop an in-house multiplex-PCR for HNA-1, -3, -4, and -5 genotyping in the Thai population. METHODS: Altogether, 500 DNA samples obtained from unrelated, healthy Thai blood donors at the National Blood Centre, Thai Red Cross Society, Bangkok, Thailand were included...
November 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28131968/effect-of-intravenous-plasma-transfusion-on-granulocyte-and-monocyte-oxidative-and-phagocytic-activity-in-dairy-calves-with-failure-of-passive-immunity
#15
Victoria C Yang, Maire C Rayburn, Munashe Chigerwe
Plasma administration has been recommended in calves older than 48h with failure of passive immunity (FPI) to provide immunity consistent with adequate colostral ingestion. However, the protective serum immunoglobulin G (IgG) concentrations (≥1000mg/dL) of plasma derived IgG only lasts up to 12h. In addition to IgG, maternally derived colostral cells also confer immunity. The objective of the study was to determine the effect of intravenous plasma transfusion on granulocyte and monocyte oxidative and phagocytic activity in calves with FPI...
January 21, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28120426/characterization-of-buffy-coat-derived-granulocytes-for-clinical-use-a-comparison-with-granulocyte-colony-stimulating-factor-dexamethasone-pretreated-donor-derived-products
#16
A van de Geer, R P Gazendam, A T J Tool, J L van Hamme, D de Korte, T K van den Berg, S S Zeerleder, T W Kuijpers
BACKGROUND AND OBJECTIVES: Buffy coat-derived granulocytes have been described as an alternative to the apheresis product from donors pretreated with dexamethasone and granulocyte colony-stimulating factor (G-CSF). The latter is - dependent on the local and national settings - obtained following a demanding and time-consuming procedure, which is undesirable in critically ill septic patients. In contrast, buffy coat-derived products have a large volume and are often heavily contaminated with red cells and platelets...
February 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28105211/diagnostic-and-therapeutic-approaches-to-multiple-myeloma-patients-real-world-data-from-representative-multicentre-treatment-surveys-in-germany-between-2008-and-2011
#17
Thomas M Moehler, Maximilian Merz, Lenka Kellermann, Hartmut Goldschmidt, Wolfgang Knauf
A survey was conducted to investigate the standard of care for multiple myeloma in Germany, in order to clarify the status of implementation of international and national treatment guidelines. In addition, the changes in disease management over time were investigated by comparison with surveys conducted in 2008 and 2009. The survey captured a representative sample of 478 myeloma patients with a mean age of 67.9 years across various stages of the disease. Diagnostic approaches, prognostic aspects and treatment decisions were evaluated based on a survey conducted in 2011 in 58 representative centres in Germany, including university and non-university hospitals and office-based haematologists...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28032635/dexamethasone-promotes-granulocyte-mobilization-by-prolonging-the-half-life-of-granulocyte-colony-stimulating-factor-in-healthy-donors-for-granulocyte-transfusions
#18
Ida H Hiemstra, John L van Hamme, Machiel H Janssen, Timo K van den Berg, Taco W Kuijpers
BACKGROUND: Granulocyte transfusion (GTX) is a potential approach to correcting neutropenia and relieving the increased risk of infection in patients who are refractory to antibiotics. To mobilize enough granulocytes for transfusion, healthy donors are premedicated with granulocyte-colony-stimulating factor (G-CSF) and dexamethasone. Granulocytes have a short circulatory half-life. Consequently, patients need to receive GTX every other day to keep circulating granulocyte counts at an acceptable level...
March 2017: Transfusion
https://www.readbyqxmd.com/read/28031160/myelo-erythroid-commitment-after-burn-injury-is-under-%C3%AE-adrenergic-control-via-mafb-regulation
#19
Shirin Hasan, Nicholas B Johnson, Michael J Mosier, Ravi Shankar, Peggie Conrad, Andrea Szilagyi, Richard L Gamelli, Kuzhali Muthumalaiappan
Severely injured burn patients receive multiple blood transfusions for anemia of critical illness despite the adverse consequences. One limiting factor to consider alternate treatment strategies is the lack of a reliable test platform to study molecular mechanisms of impaired erythropoiesis. This study illustrates how conditions resulting in a high catecholamine microenvironment such as burns can instigate myelo-erythroid reprioritization influenced by β-adrenergic stimulation leading to anemia. In a mouse model of scald burn injury, we observed, along with a threefold increase in bone marrow LSK cells (lin(neg) Sca1(+)cKit(+)), that the myeloid shift is accompanied with a significant reduction in megakaryocyte erythrocyte progenitors (MEPs)...
March 1, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28024915/how-do-megakaryocytic-microparticles-target-and-deliver-cargo-to-alter-the-fate-of-hematopoietic-stem-cells
#20
Jinlin Jiang, Chen-Yuan Kao, Eleftherios T Papoutsakis
Megakaryocytic microparticles (MkMPs), the most abundant MPs in circulation, can induce the differentiation of hematopoietic stem and progenitor cells (HSPCs) into functional megakaryocytes. This MkMP capability could be explored for applications in transfusion medicine but also for delivery of nucleic acids and other molecules to HSPCs for targeted molecular therapy. Understanding how MkMPs target, deliver cargo and alter the fate of HSPCs is important for exploring such applications. We show that MkMPs, which are distinct from Mk exosomes (MkExos), target HSPCs with high specificity since they have no effect on other ontologically or physiologically related cells, namely mesenchymal stem cells, endothelial cells or granulocytes...
December 24, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
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