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https://www.readbyqxmd.com/read/28426102/infection-related-complications-during-treatment-for-childhood-acute-lymphoblastic-leukemia
#1
H Inaba, D Pei, J Wolf, S C Howard, R T Hayden, M Go, O Varechtchouk, T Hahn, J Buaboonnam, M L Metzger, J E Rubnitz, R C Ribeiro, J T Sandlund, S Jeha, C Cheng, W E Evans, M V Relling, C-H Pui
Background: Comprehensive studies on neutropenia and infection-related complications in patients with acute lymphoblastic leukemia (ALL) are lacking. Patients and methods: We evaluated infection-related complications that were grade ≥3 on National Cancer Institute's Common Terminology Criteria for Adverse Events (version 3.0) and their risk factors in 409 children with newly diagnosed ALL throughout the treatment period. Results: Of the 2420 infection episodes, febrile neutropenia and clinically or microbiologically documented infection were seen in 1107 and 1313 episodes, respectively...
February 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28403512/mitotic-figure-in-the-peripheral-blood-smear
#2
Sebastian Hörber, Ingo Rettig, Andreas Peter
A previously healthy 19-year-old man presented with fever, sore throat and strong feeling of illness. Physical examination showed strong swelling of throat tonsils and moderate hepatosplenomegaly. The laboratory values were as following: a total white blood count of 10.9 x 10(9) /L, hemoglobin 14.1 g/dL and a platelet count of 109 x 10(9) /L. Total bilirubin was 1.4 mg/dL and CRP was 1.32 mg/dL. The serological analyses revealed IgG and IgM antibodies against EBV-VCA consistent with an acute Epstein-Barr virus infection...
April 12, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28401745/hypocellular-acute-myeloid-leukemia-treated-with-bone-marrow-transplantation
#3
Dai Keino, Kensuke Kondoh, Ryo Ohyama, Mizuho Morimoto, Tetsuya Mori, Masafumi Ito, Akitoshi Kinoshita
Hypocellular acute myeloid leukemia (AML) mainly occurs in elderly patients, and is extremely rare in childhood. There is still no established treatment for hypocellular AML. We report the case of an 11-year-old boy with hypocellular AML who was treated successfully with allogenic bone marrow transplantation (allo-BMT). He presented with fever, pallor and pancytopenia. Bone marrow aspiration and biopsy confirmed a diagnosis of hypocellular AML. Although low-dose cytarabine induced reduction of blasts, it did not lead to complete remission...
April 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28401061/transcription-factor-gfi1b-in-health-and-disease
#4
REVIEW
Eduardo Anguita, Francisco J Candel, Alberto Chaparro, Juan J Roldán-Etcheverry
Many human diseases arise through dysregulation of genes that control key cell fate pathways. Transcription factors (TFs) are major cell fate regulators frequently involved in cancer, particularly in leukemia. The GFI1B gene, coding a TF, was identified by sequence homology with the oncogene growth factor independence 1 (GFI1). Both GFI1 and GFI1B have six C-terminal C2H2 zinc fingers and an N-terminal SNAG (SNAIL/GFI1) transcriptional repression domain. Gfi1 is essential for neutrophil differentiation in mice...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28389255/relative-telomere-length-prior-to-hematopoietic-cell-transplantation-hct-and-outcome-after-unrelated-donor-hct-for-acute-leukemia
#5
Youjin Wang, Tao Wang, Casey Dagnall, Michael Haagenson, Stephen R Spellman, Belynda Hicks, Kristine Jones, Stephanie J Lee, Sharon A Savage, Shahinaz M Gadalla
Telomeres are tandem nucleotide repeats and a protein complex located at the end of the chromosomes maintaining genomic stability. Their potential as a predictive biomarker for outcomes after allogeneic hematopoietic cell transplant (HCT) in hematologic malignancies is still unclear. From the Center for International Blood and Marrow Transplant Research (CIBMTR), we randomly selected 536 acute leukemia (AL) patients from those who underwent myeloablative 8/8 HLA-matched unrelated donor HCT between 2005 and 2012, and who had an available pre-HCT blood sample in the repository...
April 4, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28371883/feasibility-of-counting-smudge-cells-as-lymphocytes-in-differential-leukocyte-counts-performed-on-blood-smears-of-patients-with-established-or-suspected-chronic-lymphocytic-leukemia-small-lymphocytic-lymphoma
#6
Gene Gulati, Vandi Ly, Guldeep Uppal, Jerald Gong
Background: Lymphocytosis and smudge cells are commonly observed on the blood smears of patients with an established or suspected diagnosis of chronic lymphocytic leukemia/small lymphocytic lymphoma. Excluding smudge cells from the manual differential count (MDIFF), a common laboratory practice, yields unreliable results and consequently necessitates performing the MDIFF testing on an albuminized blood smear. Objective: To assess the reliability of counting smudge cells as lymphocytes in the MDIFFs on nonalbuminized smears and automated differentials (ADIFFs) as a substitute for MDIFFs...
March 24, 2017: Laboratory Medicine
https://www.readbyqxmd.com/read/28369036/chromatin-remodeling-factor-smarcd2-regulates-transcriptional-networks-controlling-differentiation-of-neutrophil-granulocytes
#7
Maximilian Witzel, Daniel Petersheim, Yanxin Fan, Ehsan Bahrami, Tomas Racek, Meino Rohlfs, Jacek Puchałka, Christian Mertes, Julien Gagneur, Christoph Ziegenhain, Wolfgang Enard, Asbjørg Stray-Pedersen, Peter D Arkwright, Miguel R Abboud, Vahid Pazhakh, Graham J Lieschke, Peter M Krawitz, Maik Dahlhoff, Marlon R Schneider, Eckhard Wolf, Hans-Peter Horny, Heinrich Schmidt, Alejandro A Schäffer, Christoph Klein
We identify SMARCD2 (SWI/SNF-related, matrix-associated, actin-dependent regulator of chromatin, subfamily D, member 2), also known as BAF60b (BRG1/Brahma-associated factor 60b), as a critical regulator of myeloid differentiation in humans, mice, and zebrafish. Studying patients from three unrelated pedigrees characterized by neutropenia, specific granule deficiency, myelodysplasia with excess of blast cells, and various developmental aberrations, we identified three homozygous loss-of-function mutations in SMARCD2...
April 3, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28365518/immunological-implications-of-bovine-leukemia-virus-infection
#8
M G Blagitz, F N Souza, C F Batista, L F F Azevedo, E M R Sanchez, S A Diniz, M X Silva, J P Haddad, A M M P Della Libera
This study examined neutrophil and monocyte functions and the blood lymphocyte profile of naturally BLV-infected cows with or without persistent lymphocytosis (PL). The percentage of neutrophils and monocytes that phagocytosed Staphylococcus aureus was lower in BLV-infected dairy cows, particularly those with PL. The relative percentage of CD44(+) monocytes and neutrophils and CD11b expression by neutrophils was also lower in BLV-infected dairy cows with PL. A correlation between the percentage of CD11b(+) neutrophils and that produced reactive oxygen species (ROS) was found...
March 24, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28352993/preclinical-evaluation-of-the-short-term-toxicity-of-4-n-docosahexaenoyl-2%C3%A2-2%C3%A2-difluorodeoxycytidine-dha-dfdc
#9
Solange Valdes, Youssef W Naguib, Rick A Finch, Wallace B Baze, Christopher A Jolly, Zhengrong Cui
PURPOSE: This study was designed to test the short-term toxicity of DHA-dFdC in a mouse model and its efficacy in a mouse model of leukemia at or below its repeat-dose maximum tolerated dose (RD-MTD). METHOD: A repeat-dose dose-ranging toxicity study was designed to determine the tolerability of DHA-dFdC when administered to DBA/2 mice by intravenous (i.v.) injection on a repeat-dose schedule (i.e. injections on days 0, 3, 7, 10, and 13). In order to determine the effect of a lethal dose of DHA-dFdC, mice were injected i...
March 28, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28321924/infectious-complications-in-patients-with-myelodysplastic-syndromes-a-review-of-the-literature-with-emphasis-on-patients-treated-with-5-azacitidine
#10
REVIEW
Markus Radsak, Uwe Platzbecker, Cornelia S Schmidt, Wolf-Karsten Hofmann, Florian Nolte
Myelodysplastic Syndromes are oligo-clonal stem cell disorders that are associated with cytopenias in the peripheral blood. Major causes for morbidity and mortality in myelodysplastic syndromes (MDS) patients are infections mostly due to bacteria or fungi. Beside leucopenia per se in affected patients, function of white blood cells particularly that of neutrophils seems to be impaired. Here we summarize the available data on infections in MDS patients in general and particularly those treated with 5-azacitidine...
March 21, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28314085/targeted-next-generation-sequencing-and-identification-of-risk-factors-in-world-health-organization-defined-atypical-chronic-myeloid-leukemia
#11
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%...
March 17, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28302714/ruxolitinib-a-potent-jak1-jak2-inhibitor-induces-temporary-reductions-in-the-allelic-burden-of-concurrent-csf3r-mutations-in-chronic-neutrophilic-leukemia
#12
Arief S Gunawan, Donal P McLornan, Bridget Wilkins, Katherine Waghorn, Yvette Hoade, Nick C P Cross, Claire N Harrison
No abstract text is available yet for this article.
March 16, 2017: Haematologica
https://www.readbyqxmd.com/read/28296991/clinicopathologic-immunohistochemical-and-molecular-features-of-histiocytoid-sweet-syndrome
#13
Victoria Alegría-Landa, Socorro María Rodríguez-Pinilla, Angel Santos-Briz, José Luis Rodríguez-Peralto, Victor Alegre, Lorenzo Cerroni, Heinz Kutzner, Luis Requena
Importance: Histiocytoid Sweet syndrome is a rare histopathologic variant of Sweet syndrome. The nature of the histiocytoid infiltrate has generated considerable controversy in the literature. Objective: The main goal of this study was to conduct a comprehensive overview of the immunohistochemical phenotype of the infiltrate in histiocytoid Sweet syndrome. We also analyze whether this variant of Sweet syndrome is more frequently associated with hematologic malignancies than classic Sweet syndrome...
March 15, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28283679/the-immunological-function-of-cd52-and-its-targeting-in-organ-transplantation
#14
REVIEW
Yang Zhao, Huiting Su, Xiaofei Shen, Junfeng Du, Xiaodong Zhang, Yong Zhao
INTRODUCTION: CD52 (Campath-1 antigen), a glycoprotein of 12 amino acids anchored to glycosylphosphatidylinositol, is widely expressed on the cell surface of immune cells, such as mature lymphocytes, natural killer cells (NK), eosinophils, neutrophils, monocytes/macrophages, and dendritic cells (DCs). The anti-CD52 mAb, alemtuzumab, was used widely in clinics for the treatment of patients such as organ transplantation. In the present manuscript, we will briefly summarize the immunological function of CD52 and discuss the application of anti-CD52 mAb in transplantation settings...
March 10, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28278698/usefulness-of-the-delta-neutrophil-index-as-an-ancillary-test-in-the-emergency-department-for-the-early-diagnosis-of-suspected-acute-promyelocytic-leukemia
#15
Dong Ryul Ko, Ji Eun Jang, Sung Phil Chung, Jong Wook Lee, Hye Sun Lee, Jung Hwa Hong, Taeyoung Kong, Je Sung You, Incheol Park
The delta neutrophil index (DNI) reflects the fraction of circulating immature granulocytes. We evaluated the usefulness of DNI values in patients with acute myeloid leukemia (AML) to distinguish the acute stage of acute promyelocytic leukemia (APL). We analyzed patients retrospectively who were first diagnosed with AML upon admission to the emergency department (ED). Thirty of the 134 patients (22.4%) were diagnosed with APL on ED admission. The univariate analysis and multivariate logistic regression models revealed that DNI values differed significantly between APL and non-APL AML patients on days 0, 1 and 2...
March 2, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28255203/indirubin-treatment-of-lipopolysaccharide-induced-mastitis-in-a-mouse-model-and-activity-in-mouse-mammary-epithelial-cells
#16
Jin-Lun Lai, Yu-Hui Liu, Yong-Chong Peng, Pan Ge, Chen-Fei He, Chang Liu, Ying-Yu Chen, Ai-Zhen Guo, Chang-Min Hu
Indirubin is a Chinese medicine extracted from indigo and known to be effective for treating chronic myelogenous leukemia, neoplasia, and inflammatory disease. This study evaluated the in vivo anti-inflammatory activity of indirubin in a lipopolysaccharide- (LPS-) induced mouse mastitis model. The indirubin mechanism and targets were evaluated in vitro in mouse mammary epithelial cells. In the mouse model, indirubin significantly attenuated the severity of inflammatory lesions, edema, inflammatory hyperemia, milk stasis and local tissue necrosis, and neutrophil infiltration...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28252631/-myeloproliferative-masks-of-multiple-myeloma-a-review-of-literature-and-clinical-case-reports
#17
V V Ryzhko, A E Grachev, A A Klodzinsky, T V Ivanova, M S Sataeva, E O Gribanova
Concurrences of multiple myeloma with myeloproliferative diseases or secondary myeloid leukemoid reactions are rather rare. The paper describes 3 cases of multiple myeloma: the first case concurrent with neutrophilic leukocytosis; the second case with secondary erythropoetin-dependent erythrocytosis, and the third case with chronic myeloid leukemia. In such cases, an accurate diagnosis requires molecular testing, besides routine clinical and laboratory studies. The paper discusses therapeutic strategy in cases of a concurrence of 2 competing tumors of the blood system: to treat them simultaneously or the most aggressive tumor now, as well as a relationship between multiple myeloma and chronic myeloid leukemia, other myeloproliferative disorders, and secondary myeloid leukemoid reactions...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28250006/cebpa-double-mutated-acute-myeloid-leukemia-displays-a-unique-phenotypic-profile-a-reliable-screening-method-and-insight-into-biological-features
#18
Francesco Mannelli, Vanessa Ponziani, Sara Bencini, Maria Ida Bonetti, Matteo Benelli, Ilaria Cutini, Giacomo Gianfaldoni, Barbara Scappini, Fabiana Pancani, Matteo Piccini, Tommaso Rondelli, Roberto Caporale, Anna Maria Grazia Gelli, Benedetta Peruzzi, Marco Chiarini, Erika Borlenghi, Orietta Spinelli, Damiano Giupponi, Pamela Zanghì, Renato Bassan, Alessandro Rambaldi, Giuseppe Rossi, Alberto Bosi
Mutations in CCAAT/enhancer binding protein α (CEBPA) occur in 5-10% of cases of acute myeloid leukemia. CEBPA-double-mutated cases usually bear biallelic N- and C-terminal mutations and are associated with a favorable clinical outcome. Identification of CEBPA mutants is challenging because of the variety of mutations, intrinsic characteristics of the gene and technical issues. Several screening methods (fragment-length analysis, gene expression array) have been proposed especially for large-scale clinical use; although efficient, they are limited by specific concerns...
March 2017: Haematologica
https://www.readbyqxmd.com/read/28245856/characterization-of-oral-and-gut-microbiome-temporal-variability-in-hospitalized-cancer-patients
#19
Jessica R Galloway-Peña, Daniel P Smith, Pranoti Sahasrabhojane, W Duncan Wadsworth, Bryan M Fellman, Nadim J Ajami, Elizabeth J Shpall, Naval Daver, Michele Guindani, Joseph F Petrosino, Dimitrios P Kontoyiannis, Samuel A Shelburne
BACKGROUND: Understanding longitudinal variability of the microbiome in ill patients is critical to moving microbiome-based measurements and therapeutics into clinical practice. However, the vast majority of data regarding microbiome stability are derived from healthy subjects. Herein, we sought to determine intra-patient temporal microbiota variability, the factors driving such variability, and its clinical impact in an extensive longitudinal cohort of hospitalized cancer patients during chemotherapy...
February 28, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28245370/-establishment-and-identification-of-scl-tta-bcr-abl-transgenic-mouse-model-with-chronic-myeloid-leukemia
#20
Yan Lin, Wei Fu, Ying-Min Liang
OBJECTIVE: To establish transgenic mouse model with chronic myeloid leukemia(CML) by tetracycline withdrawal, so as to provide the experimental tool for studying pathogenesis of CML and searching new therapeutic method for this disease. METHODS: The BCR-ABL expression in stem and progenitor cells in SCL-tTA/BCR-ABL transgenic mice was induced by tetracycline withdrawal in drinking water; and the peripheral hemogram and spleen index were examined after identifying genotypes in mice; the distribution of hematopoietic lineage in bone marrow, spleen and peripheral blood was detected by flow cytometry...
February 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
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