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https://www.readbyqxmd.com/read/28811010/distinct-clinical-characteristics-of-paroxysmal-nocturnal-hemoglobinuria-in-patients-in-southern-taiwan-a-multicenter-investigation
#1
Hui-Ching Wang, Ching-Yuan Kuo, I-Ting Liu, Tsai-Yun Chen, Yu-Hsiang Chang, Shyh-Jer Lin, Shih-Feng Cho, Yi-Chang Liu, Ta-Chih Liu, Sheng-Fung Lin, Chao-Sung Chang
Paroxysmal nocturnal hemoglobinuria (PNH) is an extremely rare acquired disorder. The aim of this study was to investigate the demographics, clinical manifestations, and outcomes of PNH patients in southern Taiwan. Data on PNH patients diagnosed over a 30-year period (1985-2015) were retrospectively collected from four tertiary medical centers in southern Taiwan. Blood samples were collected for hematologic panel testing and flow cytometry detection of PNH clones. Radiologic studies were performed to assess the frequency of complications...
August 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28806563/alteration-of-the-number-and-percentage-of-innate-immune-cells-in-preschool-children-from-an-e-waste-recycling-area
#2
Yu Zhang, Xijin Xu, Di Sun, Junjun Cao, Yuling Zhang, Xia Huo
Heavy metal lead (Pb) and cadmium (Cd) are widespread environmental contaminants and exert detrimental effects on the immune system. We evaluated the association between Pb/Cd exposures and innate immune cells in children from an electronic waste (e-waste) recycling area. A total number of 294 preschool children were recruited, including 153 children from Guiyu (e-waste exposed group), and 141 from Haojiang (reference group). Pb and Cd levels in peripheral blood were measured by graphite furnace atomic absorption spectrophotometer, NK cell percentages were detected by flow cytometer, and other innate immune cells including monocytes, eosinophils, neutrophils and basophils were immediately measured by automated hematology analyzer...
August 11, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28803233/comprehensive-analysis-of-the-chemical-composition-and-in-vitro-cytotoxic-mechanisms-of-pallines-spinosa-flower-and-leaf-essential-oils-against-breast-cancer-cells
#3
Ayman M Saleh, Mahmoud A Al-Qudah, Amre Nasr, Sayed A Rizvi, Anwar Borai, Mustafa Daghistani
BACKGROUND/AIMS: In our quest for new natural anticancer agents, we studied the cytotoxicity of the essential oils extracted from flowers and leaves of Pallines spinosa. METHODS: The essential oils were extracted by hydrodistillation and solid phase microextraction (SPME) from flowers and leaves of the plant and their composition was determined by GC/GC-MS. The cytotoxicity of the oils was evaluated against MCF-7 and MDA-MB-231 breast adenocarcinomas, and the non-cancerous MCF-10-2A cells, using a flow cytometry-based assay Apoptosis was evaluated by flow cytometry, nuclear staining, caspases activation, and Western blotting techniques, and cell cycle by measuring DNA contents...
August 11, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28798838/simultaneous-measurement-of-erythrocyte-deformability-and-blood-viscoelasticity-using-micropillars-and-co-flowing-streams-under-pulsatile-blood-flows
#4
Yang Jun Kang
The biophysical properties of blood provide useful information on the variation in hematological disorders or diseases. In this study, a simultaneous measurement method of RBC (Red Blood Cell) deformability and blood viscoelasticity is proposed by evaluating hemodynamic variations through micropillars and co-flowing streams under sinusoidal blood flow. A disposable microfluidic device is composed of two inlets and two outlets, two upper side channels, and two lower side channels connected to one bridge channel...
January 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/28790534/laboratory-and-genetic-biomarkers-associated-with-cerebral-blood-flow-velocity-in-hemoglobin-sc-disease
#5
Rayra Pereira Santiago, Camilo Vieira, Corynne Stephanie Ahouefa Adanho, Sanzio Silva Santana, Caroline Conceição Guarda, Camylla Vilas Boas Figueiredo, Luciana Magalhães Fiuza, Thassila Nogueira Pitanga, Junia Raquel Dutra Ferreira, Milena Magalhães Aleluia, Rodrigo Mota Oliveira, Dalila Luciola Zanette, Isa Menezes Lyra, Marilda Souza Goncalves
Reference values for cerebral blood flow velocity (CBFV) in hemoglobin SC disease (HbSC) have not been established. We aimed to investigate associations between laboratory and genetic biomarkers associated with CBFV in HbSC children. Sixty-eight HbSC children were included; CBFV was analyzed by transcranial Doppler, and the time-averaged maximum mean velocity (TAMMV) was estimated. Hematological, biochemical, immunological, and genetic analyses were performed. TAMMV was negatively correlated with red blood cell count (RBC) count, hemoglobin, hematocrit, and direct bilirubin (DB), yet positively correlated with monocytes and ferritin...
2017: Disease Markers
https://www.readbyqxmd.com/read/28771903/fludarabine-cytarabine-g-csf-and-idarubicin-for-children-with-relapsed-aml
#6
Hideki Nakayama, Daisuke Tomizawa, Shiro Tanaka, Shotaro Iwamoto, Akira Shimada, Akiko M Saito, Yuka Yamashita, Hiroshi Moritake, Kiminori Terui, Takashi Taga, Hidemasa Matsuo, Yoshiyuki Kosaka, Katsuyoshi Koh, Hajime Hosoi, Hidemitsu Kurosawa, Keiichi Isoyama, Keizo Horibe, Shuki Mizutani, Souichi Adachi
BACKGROUND: The combination of fludarabine (Flu), high dose cytarabine (Ara-C) and granulocyte-colony stimulating factor (G-CSF) called "FLAG" with anthracyclines has become a standard chemotherapy for refractory acute myeloid leukemia (AML) in European children and adults. To clarify the efficacy and the safety of FLAG-idarubicin (IDA) for children prospectively, we planned a multicenter phase II study (AML-R11) by Japanese Pediatric Leukemia/Lymphoma Study Group. METHODS: Patients with AML at the age between 2 and 20 years old, who had the first bone marrow (BM) relapse or induction failure, were enrolled...
August 3, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28766540/-leukemization-of-follicular-lymphoma-the-features-of-diagnostic-and-clinical-course-of-a-rare-form-of-the-disease
#7
E S Nesterova, S K Kravchenko, Ya K Mangasarova, L V Plastinina, V N Dvirnyk, A M Kovrigina, I A Shchupletsova, T N Obukhova, E G Gemdzhian, I A Vorobyev, A I Vorobyev
AIM: To characterize a group of patients with follicular lymphoma (FL) with leukemization and to evaluate the efficiency of different therapy options (R-CHOP/R-FMC/high-dose chemotherapy (HDCT)). SUBJECTS AND METHODS: 18 (7.2%) out of 250 patients diagnosed with FL, who were examined and treated at the National Research Center for Hematology, Ministry of Health of the Russian Federation, were found to have leukemic FL (tumor cells in the peripheral blood smears were detected by cytology and flow cytofluorometry...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28761230/renal-biopsy-in-paroxysmal-nocturnal-hemoglobinuria-an-insight-into-the-spectrum-of-morphologic-changes
#8
V Puri, A Gandhi, S Sharma
Paroxysmal nocturnal hemoglobinuria (PNH) is a rare, acquired, potentially life-threatening disease of blood, characterized by complement-induced intravascular hemolytic anemia and thrombosis. PNH can sometimes present directly with renal manifestations, without showing any hematological manifestation. It, therefore, becomes essential for clinicians and pathologists to be aware of the spectrum of renal changes in PNH. The aim of this study was to document the morphologic changes observed in renal biopsies in patients with PNH...
July 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28758099/platelet-expression-of-pkcepsilon-oncoprotein-in-myelofibrosis-is-associated-with-disease-severity-and-thrombotic-risk
#9
Elena Masselli, Cecilia Carubbi, Giulia Pozzi, Silvia Martini, Franco Aversa, Daniela Galli, Giuliana Gobbi, Prisco Mirandola, Marco Vitale
BACKGROUND: Myelofibrosis (MF) is the most aggressive Philadelphia-negative chronic myeloproliferative neoplasm (MPN) with high morbidity and mortality due to thrombo-hemorrhagic complications and leukemic transformation. MF is characterized by profound alterations of megakaryocytopoiesis, with consequent abnormalities in platelet number and function. We recently showed that the overexpression of the oncoprotein PKCepsilon plays a key role in the aberrant differentiation of MF megakaryocyte clone and that its levels correlate with disease burden...
July 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28756914/hematological-and-splenic-doppler-ultrasonographic-changes-in-dogs-sedated-with-acepromazine-or-xylazine
#10
Dienifer V Sutil, Cláudio R S Mattoso, Julieta Volpato, Nádia C Weinert, Ádson Costa, Rozyanne R Antunes, Thiago R Muller, Suzane L Beier, Ronise Tochetto, Felipe Comassetto, Mere E Saito
OBJECTIVE: To evaluate the onset and duration of hematological changes and the use of Doppler ultrasound (spleen) in dogs sedated with acepromazine or xylazine. STUDY DESIGN: Clinical study. ANIMALS: A total of 24 mixed breed dogs aged 1-4 years and weighing 15-25 kg. METHODS: Dogs were randomly distributed into two groups: acepromazine group (AG) which were administered acepromazine (0.05 mg kg(-1)) intramuscularly and xylazine group (XG) administered xylazine (0...
March 22, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28746858/modeling-of-biomechanics-and-biorheology-of-red-blood-cells-in-type-2-diabetes-mellitus
#11
Hung-Yu Chang, Xuejin Li, George Em Karniadakis
Erythrocytes in patients with type-2 diabetes mellitus (T2DM) are associated with reduced cell deformability and elevated blood viscosity, which contribute to impaired blood flow and other pathophysiological aspects of diabetes-related vascular complications. In this study, by using a two-component red blood cell (RBC) model and systematic parameter variation, we perform detailed computational simulations to probe the alteration of the biomechanical, rheological, and dynamic behavior of T2DM RBCs in response to morphological change and membrane stiffening...
July 25, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28736020/mechanism-for-the-instant-blood-mediated-inflammatory-reaction-in-rat-islet-transplantation
#12
Y Cheng, B Wang, H Li, N Zhao, Y Liu
OBJECTIVE: The purpose of this study was to investigate the mechanisms involved in the development of instant blood-mediated inflammatory reaction (IBMIR) triggered by pancreatic islet transplantation in an in vitro system. MATERIALS AND METHODS: Pancreatic islets were prepared and blood was taken from male and female Wistar rats. An in vitro heparinized tubing loop model on a rocking device that was placed in a 37°C incubator was used to generate blood flow inside the loops...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28735998/assessment-of-spleen-filtrate-function-in-renal-transplant-recipients-using-technetium-99m-stannous-colloid-liver-spleen-scan
#13
N C Araújo, M B Neves, C A Mandarim-de-Lacerda, M M C Orlando
BACKGROUND: Functional hyposplenism (FH) is indicated by an anatomically present spleen that fails to take up radiolabeled colloid. The occurrence of FH has been reported in a small group of renal transplant recipients based on hematologic parameters. The aim of this study was to replicate this association in a larger group of renal transplant recipients with the use of technetium-99m-stannous colloid liver-spleen scan to assess the spleen function. METHODS: This survey based on single samples enrolled 101 unselected adult patients with functional kidney grafts >180 days after transplantation...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28724268/efficient-expansion-of-sall4-transduced-umbilical-cord-blood-derived-cd133-hematopoietic-stem-cells
#14
Majid Mossahebi-Mohammadi, Amir Atashi, Saeid Kaviani, Masoud Soleimani
Hematopoietic stem cells (HSCs) were characterized by self-renewal and multilineage potential. Umbilical cord blood-derived (UCB) as an alternative source of HSCs is widely used especially in children for stem cells transplant (SCT). The main limitation in using UCB for transplantation especially in adults is low cell dose. To overcome this limitation besides using double dose UCB, ex vivo expansion is the most important way to increase cell number for transplantation. HSCs are mainly isolated using CD133 or CD34...
May 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28721629/epha3-targeting-reduces-in-vitro-adhesion-and-invasion-and-in-vivo-growth-and-angiogenesis-of-multiple-myeloma-cells
#15
Francesco La Rocca, Irma Airoldi, Emma Di Carlo, Pina Marotta, Geppino Falco, Vittorio Simeon, Ilaria Laurenzana, Stefania Trino, Luciana De Luca, Katia Todoerti, Oreste Villani, Martin Lackmann, Fiorella D'Auria, Francesco Frassoni, Antonino Neri, Luigi Del Vecchio, Pellegrino Musto, Daniela Cilloni, Antonella Caivano
PURPOSE: Multiple myeloma (MM) is a hematologic malignancy characterized by a clonal expansion of plasma cells (PCs) in the bone marrow (BM). Since MM has so far remained incurable, further insights into its pathogenesis and the concomitant identification of new therapeutic targets are urgently needed. The tyrosine kinase receptor EphA3 is known to be involved in various cellular processes including cell viability, cell movement and cell-cell interactions. Recently, EphA3 has emerged as a potential therapeutic target in several hematologic and solid tumors...
July 18, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28720126/a-small-molecule-cytokine-combination-enhances-hematopoietic-stem-cell-proliferation-via-inhibition-of-cell-differentiation
#16
Lan Wang, Xin Guan, Huihui Wang, Bin Shen, Yu Zhang, Zhihua Ren, Yupo Ma, Xinxin Ding, Yongping Jiang
BACKGROUND: Accumulated evidence supports the potent stimulating effects of multiple small molecules on the expansion of hematopoietic stem cells (HSCs) which are important for the therapy of various hematological disorders. Here, we report a novel, optimized formula, named the SC cocktail, which contains a combination of three such small molecules and four cytokines. METHODS: Small-molecule candidates were individually screened and then combined at their optimal concentration with the presence of cytokines to achieve maximum capacity for stimulating the human CD34(+) cell expansion ex vivo...
July 18, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28719441/fourteen-day-in-vivo-testing-of-a-compliant-thoracic-artificial-lung
#17
David J Skoog, Joshua R Pohlmann, David S Demos, Christopher N Scipione, Amit Iyengar, Rebecca E Schewe, Ahmed B Suhaib, Kelly L Koch, Keith E Cook
The compliant thoracic artificial lung (cTAL) has been studied in acute in vivo and in vitro experiments. The cTAL's long-term function and potential use as a bridge to lung transplantation are assessed presently. The cTAL without anticoagulant coatings was attached to sheep (n = 5) via the pulmonary artery and left atrium for 14 days. Systemic heparin anticoagulation was used. Compliant thoracic artificial lung resistance, cTAL gas exchange, hematologic parameters, and organ function were recorded. Two sheep were euthanized for nondevice-related issues...
July 14, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28706388/comparison-of-bone-marrow-aspiration-cytology-with-bone-marrow-trephine-biopsy-histopathology-an-observational-study
#18
Meenu Gilotra, Monika Gupta, Sunita Singh, Rajeev Sen
INTRODUCTION: Bone marrow examination is a useful investigative tool for the diagnosis of many hematological and nonhematological disorders. Bone marrow aspiration (BMA) provides information about the numerical and cytological features of marrow cells, whereas bone marrow trephine biopsies (BMB) provide excellent appreciation of spatial relationships between cells and of overall bone marrow structure. We conducted this study with the objective of comparing the accuracy of BMA with BMB in the diagnosis of various hematological disorders...
July 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28688219/performance-of-a-cost-effective-and-automated-blood-counting-system-for-resource-limited-settings-operated-by-trained-and-untrained-users
#19
Dengling Xie, Yanjun Xie, Peng Liu, Lieshu Tong, Chuanzhen Hu, Pengfei Shao, Kaiqin Chu, Zachary J Smith
Current flow-based blood counting devices require expensive and centralized medical infrastructure and are not appropriate for field use. In this article we report a streamlined, easy-to-use method to count red blood cells (RBC), white blood cells (WBC), platelets (PLT) and 3-part WBC differential through a cost-effective and automated image-based blood counting system. The approach consists of using a compact, custom-built microscope with large field-of-view to record bright-field and fluorescence images of samples that are diluted with a single, stable reagent mixture and counted using automatic algorithms...
July 8, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28682907/evaluation-of-sysmex-xn-1000-hematology-analyzer-for-cell-count-and-screening-of-malignant-cells-of-serous-cavity-effusion
#20
Weiyi Xu, Qian Yu, Lixia Xie, Baode Chen, Ling Zhang
Over the years, with the advancement in hematology analyzer technology, the use of fluid analysis method has seen a drastic increase in clinical examinations. Cell counting and classification in independent body fluid analysis method are conducted by semiconductor laser flow cytometry and nucleic acid fluorescence staining techniques. This study is to evaluate the efficacy of Sysmex XN-1000 hematology analyzer in cell counting and to screen malignant cells with serous cavity effusion. Specimens (N = 206) with serous cavity effusion from our hospital were included in this study...
July 2017: Medicine (Baltimore)
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