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Yaming Xi, Zhuanzhen Ma, Hao Zhang, Maowen Yuan, Lina Wang
The aim of the present study was to investigate the cytotoxic effect and multi-drug resistance (MDR) of Clostridium difficile toxin A (TcdA) on K562/A02 cells, and understand its underlying molecular pathways. K562/A02 cells were treated with TcdA at different concentrations for 24, 48 and 72 h, and the inhibition effect and drug resistance of TcdA on K562/A02 cell proliferation was assessed by methyl thiazolyl tetrazolium colorimetric assay. Furthermore, cell cycle-apoptosis was analyzed by flow cytometry, P-glycoprotein (P-gp) expression was determined by western blot analysis and caspase-3 activity was measured using a caspase-3 activity kit...
April 2018: Oncology Letters
Li-Chan Yang, Jiunn-Wang Liao, Chi-Luan Wen, Wen-Chuan Lin
Dendrobium Taiseed Tosnobile is a new species of herba dendrobii (Shi-Hu) that was developed by crossbreeding D. tosaense and D. nobile . Its pharmacological activity and active component have been reported, but its subchronic toxicity and genetic safety have not yet been investigated. This study assessed the 90-day oral toxicity and genetic safety of the aqueous extracts of D. Taiseed Tosnobile (DTTE) in male and female Sprague-Dawley (SD) rats. Eighty rats were divided into four groups, each consisting of ten male and ten female rats...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
Hailian Wang, Wei Ge, Yong Zhuang, Jinqiu Fu, Dong Li, Xiuli Ju
Background: Cord blood transplantation (CBT) can be a life-saving procedure in the treatment of a broad variety of disorders, including hematologic, immune, and genetic diseases. However, delayed platelet recovery hinders the application of CBT. Purpose: The aim of this study was to determine the optimal combination of cytokines to amplify megakaryocyte (Mk). Methods: CB CD34+ cells were obtained by immunomagnetic isolation and amplified under four different cytokine combinations...
January 2018: Journal of Cancer Research and Therapeutics
Mohammad Houshmand, Narjes Yazdi, Alireza Kazemi, Amir Atashi, Amir Ali Hamidieh, Ali Anjam Najemdini, Mahshid Mohammadi Pour, Mahin Nikougoftar Zarif
Cancerous cells show resistance to various forms of therapy, so applying up to the minute targeted therapy is crucial. For this purpose, long non-coding RNA PVT1 as shown by recent studies is an important oncogene that interacts with vital cellular signaling pathways and different proteins such as c-Myc, NOP2 and LATS2. Due to the enormous role of long non-coding RNAs in development of leukemias, we aimed to show the role of PVT1 knock-down on fate of different hematologic cell lines. owing to this matter, various experiments such as Real-time PCR, cell cycle analysis and apoptosis assay were performed...
March 3, 2018: International Journal of Biochemistry & Cell Biology
Surbhi Sidana, Nidhi Tandon, Angela Dispenzieri, Morie A Gertz, David Dingli, Dragan Jevremovic, William G Morice, Prashant Kapoor, Taxiarchis V Kourelis, Martha Q Lacy, Suzanne R Hayman, Francis K Buadi, Nelson Leung, Ronald S Go, Yi Lin, Stephen J Russell, John A Lust, Steven R Zeldenrust, Rahma Warsame, Yi L Hwa, Miriam Hobbs, Amie Fonder, Robert A Kyle, S Vincent Rajkumar, Shaji K Kumar, Wilson I Gonsalves
We evaluated the prognostic impact of clonal circulating plasma cells (cPCs) detected by six-color multi-parametric flow cytometry (MFC) in light chain (AL) amyloidosis at diagnosis. Of the 154 patients who underwent MFC, cPCs were detected in 42% (n = 65) patients. Median number of cPCs was 81 per 150,000 events (range: 6-17,844). High bone marrow plasma cell percentage was an independent predictor of presence of cPCs. Presence of cPCs at diagnosis was associated with inferior overall survival (OS) (90 vs...
February 21, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
Akihiro Kanaya, Toshihiro Sato, Nobuo Fuse, Hiroaki Yamaguchi, Nariyasu Mano, Masanori Yamauchi
PURPOSE: Propofol is one of the most widely used fast-acting intravenously administered anesthetics. However, although large inter-individual differences in dose requirements and recovery time have been observed, there are few previous studies in which the association between several potential covariates, including genetic factors such as the UGT1A9 and CYP2B6 genotypes, and propofol pharmacokinetics was simultaneously examined. This study aimed to identify factors determining propofol pharmacokinetics...
February 21, 2018: Journal of Anesthesia
S Buoro, B Manenti, M Seghezzi, V Moioli, M Bagorria, A Callegaro, C Ottomano, G Lippi
INTRODUCTION: Malaria is a life-threatening infectious disease, which has been for long confined to specific endemic areas. Nevertheless, the recent increase in immigration flows from endemic regions and imported cases has reemphasized many diagnostic challenges in Western countries, thus paving the way to introduce rapid and accurate strategies for screening subjects with suspected Malaria infection. Therefore, the aim of this article was to describe our recent experience with Sysmex XN-module for rapid screening of subjects with suspected Malaria...
February 21, 2018: International Journal of Laboratory Hematology
Y Wang, Q Zhou, J-J Ma
OBJECTIVE: To detect the expression of long non-coding RNA-CRNDE in patients with acute myeloid leukemia and its effect on proliferation and apoptosis in acute myeloid leukemia cell line U937. PATIENTS AND METHODS: 81 cases of newly diagnosed acute myeloid leukemia (AML) were enrolled, and 35 non-malignant hematological patients were selected as controls. Quantitative RT-PCR (qRT-PCR) was performed to detect the expression of lncRNA-CRNDE in the bone marrow specimens of the subjects, and the difference between the two groups was also compared...
February 2018: European Review for Medical and Pharmacological Sciences
Lei Kang, Dawei Jiang, Christopher G England, Todd E Barnhart, Bo Yu, Zachary T Rosenkrans, Rongfu Wang, Jonathan W Engle, Xiaojie Xu, Peng Huang, Weibo Cai
PURPOSE: CD38 is considered a potential biomarker for multiple myeloma (MM) and has shown a strong link with chronic lymphocytic leukemia due to high and uniform expression on plasma cells. In vivo evaluation of CD38 expression may provide useful information about lesion detection and prognosis of treatment in MM. In this study, immunoPET imaging with89 Zr-labeled daratumumab was used for differentiation of CD38 expression in murine lymphoma models to provide a potential non-invasive method for monitoring CD38 in the clinic...
February 15, 2018: European Journal of Nuclear Medicine and Molecular Imaging
Xiaojuan Ren, Wei Liu, Yi Liu
With overuse of the broad-spectrum antibiotics, the pulmonary fungal infection increasingly becomes the most common complication associated with senile pulmonary tuberculosis (TB) and attracts intensive attentions from clinicians. Here we presented the retrospective analysis of impact of fluconazole treatment on the clinical outcome and immune response in fungal co-infected tuberculosis patients. A randomized, double-blind, placebo-controlled trial of fluconazole (100 mg per day for consecutive weeks) in fungal-positive senile tuberculosis patients was conducted in our hospital...
February 9, 2018: Microbial Pathogenesis
Mohammad Reza Khazdair, Omid Rajabi, Mahdi Balali-Mood, Farimah Beheshti, Mohammad Hossein Boskabady
BACKGROUND: Sulfur mustard is an alkylating agent which cause to short and long term incapacitations on various organs including lung. There is no definite treatment for lung disorders induced by SM exposure. In the present study, the preventive effect of Zataria multiflora (Z. multiflora) on hematological parameters, oxidant/antioxidant markers and pulmonary function tests (PFT) in veterans, 27-30 years after exposed to SM were studied. MATERIALS AND METHODS: Forty seven veterans allocated to three groups included: placebo group (P) and two groups treated with 5 and 10 mg/kg/day of Z...
January 16, 2018: Environmental Toxicology and Pharmacology
Siriyakorn Chansai, Supan Fucharoen, Goonnapa Fucharoen, Arunee Jetsrisuparb, Worawan Chumpia
BACKGROUND: Thalassemia is a group of hereditary hemoglobinopathies caused by decreased or absent synthesis of α and/or β globin chains. Studies have shown that hypercoagulability and thrombosis are common clinical symptoms in β-thalassemia, especially β-thalassemia intermedia, but little is known about in α-thalassemia. This study aims to examine phosphatidylserine (PS) levels, platelet activation, and coagulation markers in splenectomized (S) and nonsplenectomy (NS) patients with hemoglobin (Hb) H disease...
January 18, 2018: Acta Haematologica
Sawsan M Moeen, Ahmad F Thabet, Hosam A Hasan, Medhat A Saleh
Transcranial Doppler (TCD) detects stroke risk in patients with sickle cell anemia (SCA). Hydroxyurea therapy has the ability to induce increased levels of fetal hemoglobin in sickle cells thus decreasing tendency for red cell sickling. This study aimed to evaluate TCD findings in SCA patients on hydroxyurea and correlate the time-averaged mean velocity (TAMV) with their hematological parameters. Forty SCA patients of both sexes, aged 16-22 years with no history of stroke were screened with TCD for an elevated TAMV, divided into: Group T (20 patients on blood transfusion); and Group H (20 patients on daily hydroxyurea)...
January 2018: Indian Journal of Hematology & Blood Transfusion
Xue-Fang Zhang, Shu-Ying Zhang, Hong Zhou, Jia-Wei Feng, Li-Bo Jiang, Yan-Zhang Qu, Heng Guo, Shu-Liang Wang
OBJECTIVE: To explore the relationship between expression of CD96 and CD123 and prognosis of patients with myelodysplastic syndrome(MDS). METHODS: Eight-nine MDS patients(MDS group) and 20 persons without hematologic disease as controls(Control group) were enrolled. The patients were grouped by the risk. All participants received bone marrow biopsy. Mononuclear cells were extracted, CD34+CD38-CD123+ and CD34+CD38-CD96+ cells were counted by using flow cytometry...
February 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
Qing-Yun Wang, Yuan Li, Li Ji, Ze-Yin Liang, Wei Liu, Han-Yun Ren, Zhi-Xiang Qiu
OBJECTIVE: To investigate the expression level of HB-1 gene in patients with acute lymphoblastic leukemia (ALL) and the significance of HB-1 gene in monitoring of minimal residual disease (MRD). METHODS: The method of real-time fluorescence quantitative RT-PCR (Taqman probe) was established to detect the expression levels of HB-1 gene; then the sensitivity, specificity and repeatability of this assay were evaluated and verified. The HB-1 gene expression levels in bone marrow of 183 cases of ALL, 70 cases of acute myeloid leukemias (AML), 52 cases of non-malignant hematologic diseases and 24 healthy hematopoietic stem cell donors were detected...
February 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
Shannon L Maude, Theodore W Laetsch, Jochen Buechner, Susana Rives, Michael Boyer, Henrique Bittencourt, Peter Bader, Michael R Verneris, Heather E Stefanski, Gary D Myers, Muna Qayed, Barbara De Moerloose, Hidefumi Hiramatsu, Krysta Schlis, Kara L Davis, Paul L Martin, Eneida R Nemecek, Gregory A Yanik, Christina Peters, Andre Baruchel, Nicolas Boissel, Francoise Mechinaud, Adriana Balduzzi, Joerg Krueger, Carl H June, Bruce L Levine, Patricia Wood, Tetiana Taran, Mimi Leung, Karen T Mueller, Yiyun Zhang, Kapildeb Sen, David Lebwohl, Michael A Pulsipher, Stephan A Grupp
BACKGROUND: In a single-center phase 1-2a study, the anti-CD19 chimeric antigen receptor (CAR) T-cell therapy tisagenlecleucel produced high rates of complete remission and was associated with serious but mainly reversible toxic effects in children and young adults with relapsed or refractory B-cell acute lymphoblastic leukemia (ALL). METHODS: We conducted a phase 2, single-cohort, 25-center, global study of tisagenlecleucel in pediatric and young adult patients with CD19+ relapsed or refractory B-cell ALL...
February 1, 2018: New England Journal of Medicine
Habibe Kurt, Jeffrey L Jorgensen, Hesham M Amin, Keyur P Patel, Sa A Wang, Pei Lin, Rashmi Kanagal-Shamanna, Sanam Loghavi, Beenu Thakral, Haitham A Khogeer, Elias J Jabbour, Shaoying Li, C Cameron Yin, L Jeffrey Medeiros, Joseph D Khoury
BACKGROUND: Chronic lymphoproliferative disorder of NK-cells (CLPD-NK) manifests as a persistent increase (≥2 x 109 /L, for > 6 months) of mature NK-cells in peripheral blood with an indolent clinical course. The disease is rare, and only limited case series have been published. METHODS: We retrospectively studied 11 patients with CLPD-NK diagnosed at our institution between 2005 and 2017. RESULTS: Patients included 7 men and 4 women (median age, 60 years)...
January 31, 2018: European Journal of Haematology
Rasmus O Bak, Daniel P Dever, Matthew H Porteus
Genome editing via homologous recombination (HR) (gene targeting) in human hematopoietic stem cells (HSCs) has the power to reveal gene-function relationships and potentially transform curative hematological gene and cell therapies. However, there are no comprehensive and reproducible protocols for targeting HSCs for HR. Herein, we provide a detailed protocol for the production, enrichment, and in vitro and in vivo analyses of HR-targeted HSCs by combining CRISPR/Cas9 technology with the use of rAAV6 and flow cytometry...
February 2018: Nature Protocols
Nicola Gökbuget, Hervé Dombret, Massimiliano Bonifacio, Albrecht Reichle, Carlos Graux, Christoph Faul, Helmut Diedrich, Max S Topp, Monika Brüggemann, Heinz-August Horst, Violaine Havelange, Julia Stieglmaier, Hendrik Wessels, Vincent Haddad, Jonathan E Benjamin, Gerhard Zugmaier, Dirk Nagorsen, Ralf C Bargou
Approximately 30-50% of adults with acute lymphoblastic leukemia (ALL) in hematologic complete remission following multiagent therapy exhibit minimal residual disease (MRD) by reverse transcriptase-polymerase chain reaction or flow cytometry. MRD is the strongest predictor of relapse in ALL. In this open-label, single-arm study, adults with B-cell precursor ALL in hematologic complete remission with MRD (≥10-3 ) received blinatumomab 15 µg/m2 /day by continuous intravenous infusion for up to four cycles...
January 22, 2018: Blood
Elie Nader, Nicolas Guillot, Louis Lavorel, Ivan Hancco, Romain Fort, Emeric Stauffer, Céline Renoux, Philippe Joly, Michèle Germain, Philippe Connes
We compared the effects of cycling and running exercise on hemorheological and hematological properties, as well as eryptosis markers. Seven endurance-trained subjects randomly performed a progressive and maximal exercise test on a cycle ergometer and a treadmill. Blood was sampled at rest and at the end of the exercise to analyze hematological and blood rheological parameters including hematocrit (Hct), red blood cell (RBC) deformability, aggregation and blood viscosity. Hemoglobin saturation (SpO2), blood lactate and glucose levels were also monitored...
January 21, 2018: Scandinavian Journal of Medicine & Science in Sports
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