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https://www.readbyqxmd.com/read/28626543/cerebral-stroke-in-a-teenage-girl-with-paroxysmal-nocturnal-hemoglobinuria
#1
Francesco Gervasi, Lucia D'Amelio, Antonino Trizzino, Fabrizia Ferraro, Delia Russo, Giuseppe Santangelo, Francesca Cardella, Angela Trizzino, Floriana Di Marco, Piero Farruggia
We report a case of paroxysmal nocturnal hemoglobinuria (PNH) in a 14 year-old girl presenting a cerebral arterial thrombosis. The initial diagnosis was carential anemia due to menarche following identification of slight macrocytic anemia, leucopenia and mild thrombocytopenia at routine blood analysis. The child was eventually referred to a children's hospital after the onset of progressive fatigue, anorexia and paleness. Severe anemia (hemoglobin 6 g/dL) with negative Coombs test, mild leucopenia (white blood cells 4...
June 1, 2017: Hematology Reports
https://www.readbyqxmd.com/read/28620611/dogs-with-acute-myeloid-leukemia-have-clonal-rearrangements-in-t-and-b-cell-receptors
#2
Tracy Stokol, Gabrielle A Nickerson, Martha Shuman, Nicole Belcher
Clonality testing for rearrangements in the complementarity-determining region 3 of the immunoglobulin heavy chain of B lymphocytes (B cell receptor) and the T cell receptor of T lymphocytes helps distinguish between clonal and non-clonal expansions of lymphocytes. There are rare reports of clonally rearranged T and B cell receptors in dogs with acute myeloid leukemia (AML). Our objective was to determine the frequency of clonally rearranged T and B cell receptors in dogs with AML. Archived slides from historical cases of AML (from January 2010 to June 2013) and slides or liquid specimens [blood, bone marrow (BM), body cavity fluid, or tissue aspirates] from cases of AML diagnosed between June 2013 and February 2017 were used in the study...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28619665/computer-modelling-of-electro-osmotically-augmented-three-layered-microvascular-peristaltic-blood-flow
#3
Dharmendra Tripathi, Abhilesh Borode, Ravinder Jhorar, O Anwar Bég, Abhishek Kumar Tiwari
A theoretical study is presented here for the electro-osmosis modulated peristaltic three-layered capillary flow of viscous fluids with different viscosities in the layers. The layers considered here are the core layer, the intermediate layer and the peripheral layer. The analysis has been carried out under a number of physical restrictions viz. Debye-Hückel linearization (i.e. wall zeta potential ≤25mV) is assumed sufficiently small, thin electric double layer limit (i.e. the peripheral layer is much thicker than the electric double layer thickness), low Reynolds number and large wavelength approximations...
June 12, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28617574/synergistic-suppression-of-tumor-angiogenesis-by-co-delivering-of-vegf-targeted-sirna-and-candesartan-mediated-by-functionalized-carbon-nanovectors
#4
Xuefang Ding, Yujie Su, Cheng Wang, Fangrong Zhang, Kerong Chen, Yu Wang, Min Li, Wei Wang
Single-walled carbon nanotubes (SWNTs) with unique physicochemical properties have exhibited promising biomedical applications as drug/gene carrier. In this study, polyethyleneimine (PEI) modified SWNT conjugates linked with candesartan (CD) were developed to deliver vascular endothelial growth factor (VEGF) targeted siRNA (siVEGF) for synergistic and targeted treatment of tumor angiogenesis. The characterization results revealed that SWNT-PEI-CD conjugates were successfully synthesized, and exhibited desirable dispersibility and superior stability...
June 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28615039/interleukin-21-promotes-thymopoiesis-recovery-following-hematopoietic-stem-cell-transplantation
#5
Aurélie Tormo, Fatemeh Khodayarian, Yun Cui, Edouard Al-Chami, Reem Kanjarawi, Beatriz Noé, Huijie Wang, Moutih Rafei
BACKGROUND: Impaired T cell reconstitution remains a major deterrent in the field of bone marrow (BM) transplantation (BMT) due to pre-conditioning-induced damages inflicted to the thymi of recipient hosts. Given the previously reported thymo-stimulatory property of interleukin (IL)-21, we reasoned that its use post-BMT could have a profound effect on de novo T cell development. METHODS: To evaluate the effect of IL-21 on de novo T cell development in vivo, BM derived from RAG2p-GFP mice was transplanted into LP/J mice...
June 14, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28606226/-expression-of-%C3%AE-integrin-family-members-in-children-with-t-cell-acute-lymphoblastic-leukemia
#6
Qing-Lin Kong, Xi-Zhou An, Xian-Min Guan, Yi-Mei Ma, Peng-Fei Li, Shao-Yan Liang, Yan-Ni Hu, Ying-Hui Cui, Jie Yu
OBJECTIVE: To study the expression of β-integrin family members in children with T-cell acute lymphoblastic leukemia (T-ALL) and their significance. METHODS: Quantitative real-time PCR analyses were performed to assess the expression levels of β-integrin family members in bone marrow samples from 22 children with newly-diagnosed T-ALL and 21 controls (16 children with non-malignant hematologic disease and 5 healthy donors with bone marrow transplantation). Jurkat cells were treated with integrin inhibitor arginine-glycine-aspartate (Arg-Gly-Asp, RGD) peptide...
June 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28602276/fungal-aerocontamination-exposure-risk-for-patients-in-3-successive-locations-of-a-pediatric-hematology-unit-department-influence-of-air-equipment-and-building-structure-on-air-quality
#7
Anne-Pauline Bellanger, Gabriel Reboux, Florent Demonmerot, Houssein Gbaguidi-Haore, Laurence Millon
BACKGROUND: Invasive fungal infections (IFIs) play an important role in the mortality of immunocompromised patients. The pediatric hematology department (PHD) at Besançon University Hospital has relocated 3 times: (1) from a building without an air filtration system (B1), (2) to a renovated building with low air pressure (B2), and (3) to a new building with high air pressure and high-efficiency particulate air filters (B3). This study aimed to investigate how these relocations influenced the fungal exposure risk for the PHD's patients...
June 8, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28596664/bullous-pyoderma-gangrenosum-associated-with-hairy-cell-leukemia-and-its-complete-response-to-cladribine-therapy
#8
Ankur Jain, Deepesh Lad, Gaurav Prakash, Alka Khadwal, Pankaj Malhotra, Amanjit Bal, Nabhajit Mallik, Narendar Kumar, Subhash Varma
Pyoderma gangrenosum (PG) is a rare neutrophilic dermatosis seen in association with systemic disorders including hematologic malignancies. Hairy cell leukemia (HCL) however, is an unusual association of PG. We describe a 49-year old lady who presented to our hematology clinic with easy fatiguability and ulcerative skin lesions of 6 months duration. Examination revealed pallor and massive splenomegaly. Indurated, ulcerated lesion with undermined edges and necrotic base was observed on left thigh. Investigations revealed pancytopenia and bone marrow examination identified typical hairy cells...
June 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28594699/solitary-iris-plasmacytoma-with-anterior-chamber-crystalline-deposits
#9
Andrew W Stacey, Alenka Lavric, Caroline Thaung, Samreen Siddiq, Mandeep S Sagoo
PURPOSE: To report a case of solitary iris plasmacytoma successfully treated with ruthenium plaque radiotherapy. METHODS: A 44-year-old white woman presented with pain in the right eye and raised intraocular pressure. Her medical history included breast cancer treated 11 years earlier with lumpectomy, lymph node clearance, chemotherapy, and radiotherapy. On examination, the right iris had a tan-colored mass with crystalline deposits visible on the mass surface and on the corneal endothelium...
July 2017: Cornea
https://www.readbyqxmd.com/read/28593741/comparison-of-different-methods-for-telomere-length-measurement-in-whole-blood-and-blood-cell-subsets-recommendations-for-telomere-length-measurement-in-hematological-diseases
#10
Yvonne Lisa Behrens, Kathrin Thomay, Maike Hagedorn, Juliane Ebersold, Lea Henrich, Rainer Nustede, Brigitte Schlegelberger, Gudrun Göhring
Different methods of telomere length measurement are used to identify patients with telomeropathies. In our lab, we established four different methods for telomere length measurement, terminal restriction fragment (TRF) analysis by Southern blot analysis, quantitative PCR (qPCR), quantitative telomere/centromere fluorescence in situ hybridization (T/C-FISH) and fluorescence in situ hybridization combined with flow cytometry (FlowFISH). The methods each have distinct properties and apart from this - according to our experience and data - may have an impact on the individual result...
June 8, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28586007/apg-1252-12a-induces-mitochondria-dependent-apoptosis-through-inhibiting-the-antiapoptotic-proteins-bcl-2-bcl-xl-in-hl-60-cells
#11
Jing Wang, Dajun Yang, Qiuyun Luo, Miaozhen Qiu, Lin Zhang, Baoxia Li, Haibo Chen, Hanjie Yi, Xianglei Yan, Shuxia Li, Jian Sun
Acute myeloid leukemia (AML) is the most common acute leukemia in adults. Despite improved remission rates, current treatment regimens for AML are often associated with a very poor prognosis and adverse effects, necessitating more effective and safer agents. B-cell leukemia/lymphoma 2 (Bcl-2) family proteins regulate apoptotic pathway that can be targeted with small molecule inhibitors. APG-1252-12A is a Bcl-2 homology (BH)-3 mimetic that specifically binds to Bcl-2 and Bcl-xl, which has shown efficacy in some Bcl-2 dependent hematological cancers...
June 6, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28579115/bleeding-and-thrombosis-associated-with-ventricular-assist-device-therapy
#12
Palak Shah, Udaya S Tantry, Kevin P Bliden, Paul A Gurbel
Over the past decade, continuous-flow rotary pumps have dramatically improved survival for patients with advanced systolic heart failure. Bleeding and thrombosis, however, continue to be the Achilles heel of left ventricular assist device (LVAD) therapy. There is a dynamic and complex interaction between the patient and pump. The net effect of a variety of hematologic derangements, such as hemolysis, high-molecular-weight von Willebrand degradation, platelet activation and diminished pulsatility, is poorly understood...
May 11, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28537804/evaluation-of-testing-of-acute-leukemia-samples-survey-result-from-the-college-of-american-pathologists
#13
Tracy I George, Joseph A Tworek, Nicole E Thomas, Lisa A Fatheree, Rhona J Souers, Raouf E Nakhleh, Daniel A Arber
CONTEXT: - The classification and prognosis determination in acute leukemia (AL) are complex and it is unclear what testing is being performed in practice. OBJECTIVE: - To survey physicians describing their current practice of test ordering in the diagnosis of AL. DESIGN: - In anticipation of a guideline by the College of American Pathologists (CAP) and the American Society for Hematology on laboratory testing needed for the initial workup of AL, a baseline survey was designed by an expert panel from CAP...
May 24, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28518476/adult-onset-chronic-cyclic-thrombocytopenia-in-a-rhesus-macaque-macaca-mulatta-after-dengue-virus-vaccination-and-viral-challenge
#14
Galit H Frydman, Kelly A Metcalf Pate, Robert P Marini, Armelle M de Laforcade, Irene Bosch, Vasudevan Bakthavatchalu, Sureshkumar Muthupalani, Alton G Swennes, Claire E Lyons, Ronald G Tompkins, James G Fox
An 8-year-old, male Rhesus macaque (Macaca mulatta), previously used for dengue virus (DENV) vaccine research with viral challenge, was presented with adult-onset, chronic, cyclic thrombocytopenia. Platelet number, morphology, and function were evaluated by automated hematology, peripheral blood smears, electron microscopy, flow cytometry, and impedance aggregometry. Bone marrow was evaluated by cytology. Both serum anti-dengue nonstructural protein 1 (NS1) antibodies and anti-platelet antibodies were detected by ELISA...
June 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28490811/high-efficacy-and-safety-of-low-dose-cd19-directed-car-t-cell-therapy-in-51-refractory-or-relapsed-b-acute-lymphoblastic-leukemia-patients
#15
J Pan, J Yang, B Deng, X Zhao, X Zhang, Y Lin, Y Wu, Z Deng, Y Zhang, S Liu, T Wu, P Lu, D Lu, A H Chang, C Tong
Refractory or relapsed B lymphoblastic leukemia (B-ALL) patients have a dismal outcome with current therapy. We treated 42 primary refractory/hematological relapsed (R/R) and 9 refractory minimal residual disease by flow cytometry (FCM-MRD(+)) B-ALL patients with optimized second generation CD19-directed CAR-T cells. The CAR-T cell infusion dosages were initially ranged from 0.05 to 14 × 10(5)/kg and were eventually settled at 1 × 10(5)/kg for the most recent 20 cases. 36/40 (90%) evaluated R/R patients achieved complete remission (CR) or CR with incomplete count recovery (CRi), and 9/9 (100%) FCM-MRD(+) patients achieved MRD(-)...
May 11, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28488971/quality-assessment-and-transfusion-efficacy-of-buffy-coat-derived-platelet-concentrates-washed-with-platelet-additive-solution
#16
Hermógenes Fernández-Muñoz, Cristina Castilla-Llorente, Eva M Plaza, Cristina Martínez-Millán, Inmaculada Heras, Pastora Iniesta, María L Amigo, Francisca Ferrer-Marin, María J Candela, María L Lozano, Vicente Vicente, José Rivera
BACKGROUND: Transfusion of washed platelet concentrates (W-PC) is recommended for some patients, such as those who have had previous severe allergic transfusion reactions. However, we still lack a standardised method for preparing these products. Here, we assessed the effect of a manual washing procedure on in vitro platelet quality and on the transfusion efficacy of W-PCs. MATERIALS AND METHODS: Buffy coat-derived W-PC in Composol solution were prepared by onestep centrifugation...
April 13, 2017: Blood Transfusion, Trasfusione del Sangue
https://www.readbyqxmd.com/read/28482628/red-blood-cell-and-platelet-parameters-are%C3%A2-sepsis-predictors-in-an-escherichia-coli%C3%A2-induced-lethal-porcine-model
#17
Judit Tóth, Ildikó Beke Debreceni, Mariann Berhés, Endre Hajdú, Ádám Deák, Katalin Pető, Judit Szabó, Norbert Németh, Béla Fülesdi, János Kappelmayer
OBJECTIVE: In a fulminant porcine sepsis model, we determined the kinetics of hypoxia induced changes in relation to sepsis parameters and markers of organ damage. METHODS: Female pigs were challenged by live Escherichia coli and samples were analysed up to 4 hours. Bone marrow reactions were determined by analysing immature forms of peripheral blood cells by a hematology analyser and light microscopy. Platelet mitochondrial membrane depolarisation was determined by flow cytometry...
May 5, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28473658/a-3-mirna-signature-predicts-prognosis-of-pediatric-and-adolescent-cytogenetically-normal-acute-myeloid-leukemia
#18
Ruiqi Zhu, Weiwei Zhao, Fengjuan Fan, Liang Tang, Jingdi Liu, Ting Luo, Jun Deng, Yu Hu
Acute myeloid leukemia is a hematologic malignancy with significant molecular heterogeneity. MicroRNAs have important biological functions and play critical roles in pathogenesis and prognosis in a variety of cancers including acute myeloid leukemia. Some reports have constructed risk stratification systems for adult acute myeloid leukemia patients using microRNAs to predict an optimal outcome of patients. However, little has been done in pediatric and adolescent patients. The purpose of this study is to identify a panel of microRNA signature that could predict prognosis in younger cytogenetically normal acute myeloid leukemia patients by analyzing the data from The Cancer Genome Atlas...
June 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28469899/reducing-central-venous-catheter-use-in-peripheral-blood-stem-cell-donation-quality-improvement-report
#19
Samer Ghazi, Ahmed Alaskar, Mohsen Alzahrani, Moussab Damlaj, Khadega A Abuelgasim, Giamal Gmati, Mona Alshami, Salman Alshammary, Khaled Al-Surimi, Hind Salama, Ayman Alhejazi, Abdul-Rahman Jazieh
Peripheral blood stem cell (PBSC) collection from donors through apheresis has become the main source of stem cells for hematopoietic stem cell transplantation. This procedure requires a high blood flow venous access. A peripheral venous catheter (PVC), compared to a central venous catheter (CVC), is considered to provide safer venous access. However, initially at our institution, King Abdul-Aziz Medical City - Riyadh, a CVC was frequently used (72%). A quality improvement multidisciplinary team has been formed to conduct a systematic quality performance analysis to evaluate the current process of collecting donor PBSCs with the aim to reduce CVC use to less than the international benchmark (20%)...
2017: BMJ Quality Improvement Reports
https://www.readbyqxmd.com/read/28460620/cx-4945-a-selective-inhibitor-of-casein-kinase-2-synergizes-with-b-cell-receptor-signaling-inhibitors-in-inducing-diffuse-large-b-cell-lymphoma-cell-death
#20
Elisa Mandato, Sara Canovas Nunes, Fortunato Zaffino, Alessandro Casellato, Paolo Macaccaro, Laura Quotti Tubi, Andrea Visentin, Livio Trentin, Gianpietro Semenzato, Francesco Piazza
BACKGROUND: Approximately one third of Diffuse Large B cell Lymphomas (DLBCL) are refractory or relapse. Novel therapeutic approaches under scrutiny include inhibitors of B-cell receptor (BCR) signaling. Protein kinase CK2 propels survival, proliferation and stress response in solid and hematologic malignancies and promotes a "non-oncogene addiction" phenotype. Whether this kinase regulates BCR signaling thus being a suitable pharmacological target in DLBCL is unknown. OBJECTIVE: To establish if CK2 controls DLBCL cell survival and the BCR signaling; to check if the combination of CK2 inhibitor CX-4945 and BCR blockers Ibrutinib and Fostamatinib is more effectively cytotoxic for DLBCL cells than the single agents; to survey the changes in signaling molecules downstream BCR upon CK2 inhibition...
April 26, 2017: Current Cancer Drug Targets
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