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Hematology (Amsterdam, Netherlands)

Roland Christian Schelker, Sabine Iberl, Gunnar Müller, Christina Hart, Wolfgang Herr, Jochen Grassinger
OBJECTIVES: Multipotent mesenchymal stromal cells (MSCs) play a central role within the bone marrow (BM) niche, supporting hematopoiesis via soluble factors like cytokines and chemokines. In our study, we sought to investigate the effect of blocking transforming growth factor beta 1 (TGF-β1) and C-X-C motif chemokine 12 (CXCL12) receptor CXCR4 on acute myeloid leukemia (AML) cells in an MSC co-culture system. METHODS: Human MSCs were obtained by BM aspirates and their phenotype and functional properties were confirmed in vitro...
November 15, 2017: Hematology (Amsterdam, Netherlands)
Burcu Yucel, Mehmet Sonmez
OBJECTIVES: Leukemia is a group of bone marrow cancers and drug resistance is one of the challenges in treatment. Caffeic acid phenethyl ester's (CAPE's) anti-proliferative and apoptotic properties have been reported in leukemia cell lines. However, CAPE's effect on drug resistance and cellular metabolism is still unknown. Thus, in this study, we aimed to explore CAPE's effect on drug resistance and oxidative phosphorylation (oxphos). METHODS: Leukemia cell lines NB-4, HL-60, and K562 were treated with CAPE...
November 15, 2017: Hematology (Amsterdam, Netherlands)
(no author information available yet)
No abstract text is available yet for this article.
November 12, 2017: Hematology (Amsterdam, Netherlands)
Cuiying Li, Xiaowei Li, Juan Liu, Xiu Fan, Guoxing You, Lian Zhao, Hong Zhou, Jingqi Li, Huifen Lei
OBJECTIVE: High altitude is characterized by low oxygen pressure, resulting in multiple adaptive responses. Tibetans who have lived in the plateau for thousands of years have developed unique phenotypes, such as downregulation of the HIF pathway through EPAS1 and EGLN1 gene mutation. However, the changes of hemoglobin-oxygen affinity under hypoxia environment remain elusive. METHODS: A blood cell analyzer and a blood oxygen analyzer were used to conduct routine blood tests and measure the oxygen affinity P50 in in the Han population that rapidly entered the plateau (for 3-7 days), the plateau-acclimatized Han population (residing for 30 days on the plateau), the plateau Han population (more than 10 years on the plateau), and the Tibetan population...
November 12, 2017: Hematology (Amsterdam, Netherlands)
(no author information available yet)
No abstract text is available yet for this article.
November 8, 2017: Hematology (Amsterdam, Netherlands)
Yang-Feng Wang, Li-Qun Wu, Yi-Ni Liu, Yong-Yi Bi, Hong Wang
OBJECTIVE: An increasing amount of evidence shows that childhood leukemia is initiated in utero. Birth characteristics initiated in utero, such as gestational age, may play a role in leukemogenesis. The purpose of our meta-analysis is to explore the association between gestational age and childhood leukemia. METHODS: Relevant studies up to 21 April 2017 were collected by searching PubMed and EMBASE databases. Subgroup analysis, sensitivity analysis and publication bias assessment were conducted...
November 3, 2017: Hematology (Amsterdam, Netherlands)
Hongzai Guan, Xinping Liang, Rong Zhang, Haiyan Wang, Wenmiao Liu, Ru Zhang, Jie Yang, Shiguo Liu
OBJECTIVES: Hereditary spherocytosis (HS) is a genetic heterogeneous disorder characterized by sphere-shaped erythrocytes on peripheral blood smear with a few clinical manifestations. As an important red cell membrane protein, ankyrin 1 can interact with transmembrane proteins and the membrane skeleton and mutations in the ankyrin 1 (ANK1) genes affect about half of all patients with HS. The purpose of this study was to investigate a Chinese Han family with HS to find out the causative gene mutation and explore the genotype-phenotype correlation which can provide the basis for the pathogenesis and prenatal diagnosis for this disease...
November 3, 2017: Hematology (Amsterdam, Netherlands)
Hidenori Wada, Junya Kanda, Yu Akahoshi, Hirofumi Nakano, Tomotaka Ugai, Ryoko Yamasaki, Yuko Ishihara, Koji Kawamura, Kana Sakamoto, Masahiro Ashizawa, Miki Sato, Kiriko Terasako-Saito, Shun-Ichi Kimura, Misato Kikuchi, Hideki Nakasone, Rie Yamazaki, Shinichi Kako, Aki Tanihara, Junji Nishida, Yoshinobu Kanda
BACKGROUND: No standard method for measuring renal function has been established in allogeneic hematopoietic cell transplantation (allo-HCT). METHODS: We retrospectively analyzed 80 patients with hematological diseases who underwent allo-HCT at our center. We assessed renal function using creatinine clearance (Ccr), estimated glomerular filtration rate (eGFR) based on creatinine (eGFRcre), eGFR based on cystatin C (eGFRcys), and the average of eGFRcre and eGFRcys (eGFRave)...
October 31, 2017: Hematology (Amsterdam, Netherlands)
Bushra Moiz, Aysha Habib, Sobiya Sawani, Ahmed Raheem, Bilal Hasan, Manesh Gangwani
OBJECTIVES: The aim of this study was to determine the anthropometric measurements in transfusion-dependent β-thalassemia children in Pakistan. The secondary aim was to correlate serum ferritin with the physical growth. METHODS: We enrolled 367 children (aged 5-17 years) with transfusion-dependent beta-thalassemia major in the study. Anthropometric measurements, serum ferritin levels, and pre-transfusion hemoglobin levels were measured. Serum ferritin was correlated with the height z-score for age...
October 31, 2017: Hematology (Amsterdam, Netherlands)
Orhan Gursel, Serkan Tapan, Erdim Sertoglu, Emre Taşçılar, Ibrahim Eker, Talia Ileri, Zumrut Uysal, Ahmet Emin Kurekci
OBJECTIVES: Beta-thalassemia major is associated with the increased risk of cardiovascular morbidity and mortality. Asymmetric dimethylarginine (ADMA) has been implicated in the pathogenesis of endothelial dysfunction and atherosclerosis. In this study, we aimed to investigate circulating ADMA concentrations in children with beta-thalassemia major. METHODS: Thirty-one beta-thalassemia major children aged between 4 and 16 year old and age, gender-matched 36 healthy controls were enrolled in the study...
October 31, 2017: Hematology (Amsterdam, Netherlands)
Linlin Hu, Xiaonan Zhang, Jian Wang, Song Wang, Hesham M Amin, Ping Shi
OBJECTIVES: Trifluoperazine (TFP) has potential anticancer activity that was demonstrated in different types of cancer cells. However, little is known about its effects in the T-cell ALK(+) anaplastic large cell lymphoma (ALCL). In this study, we investigated the effects of TFP in this aggressive type of cancer. METHODS: The cytotoxicities of TFP on DEL and SUP-M2 cells were measured by trypan blue staining. The effects of TFP on cell cycle and apoptosis in DEL and SUP-M2 cells were determined by flow cytometry...
October 31, 2017: Hematology (Amsterdam, Netherlands)
Xiaoyu Zhang, Yuanyuan Shi, Yong Huang, Guixin Zhang, Yi He, Erlie Jiang, Jialin Wei, Donglin Yang, Qiaoling Ma, Rongli Zhang, Weihua Zhai, Sizhou Feng, Mingzhe Han
OBJECTIVES: Severe aplastic anemia (SAA) patients receive more red blood cell (RBC) transfusions as supportive management. We aim to clarify the associations between transfusion history or pre-transplantation serum ferritin (SF) and the overall survival of allogeneic hematopoietic stem cell transplantation (allo-HSCT) among SAA patients. MATERIAL AND METHODS: We retrospectively investigated 96 SAA patients undergoing allo-HSCT, and grouped them according to pre-transplantation duration...
October 18, 2017: Hematology (Amsterdam, Netherlands)
Saruta Faknuam, Thamathorn Assanasen, Preecha Ruangvejvorachai, Punchong Hanvivadhanakul, Tanin Intragumtornchai, Ponlapat Rojnuckarin
OBJECTIVES: Estrogen receptor beta (ERβ)-selective agonists inhibited B cell lymphoma growth in animal models. However, a recent study found that higher ERβ expression in tissue from diffuse large B cell lymphoma (DLBCL) patients indicated a poorer survival. This study aimed to determine the ERβ expression in DLBCL tissue using immunohistochemistry and correlate with clinical outcomes. METHODS: Diagnostic tissues from newly diagnosed adult DLBCL patients treated with Rituximab-Cyclophosphamide/Doxorubicin/Vincristine/Prednisolone were counted for ERβ1-expressing cells...
October 15, 2017: Hematology (Amsterdam, Netherlands)
Timothy Devos, Dominik Selleslag, Pierre Zachée, Fleur Samantha Benghiat
No abstract text is available yet for this article.
October 12, 2017: Hematology (Amsterdam, Netherlands)
Dalia Saber Morgan, Rasha Abdel-RaoufAbdel-Aziz Afifi, Shereen Mohamed El-Hoseiny, Dalia Gamil Amin, Sara Yahia Gaber Ibrahim
OBJECTIVES: The main objective of this study was to study tumor necrosis factor beta (TNFB) + 252G/A gene polymorphism, known to be related to autoimmunity, in immune thrombocytopenia (ITP) patients. We also aimed to investigate the association between TNFB + 252G/A polymorphism and susceptibility to develop persistent/chronic ITP. METHODS: One hundred pediatric ITP patients, as well as 50 age- and sex-matched healthy Egyptian subjects, were included. Genotyping of TNF-β gene (G252A) was done using the PCR-RFLP method...
October 12, 2017: Hematology (Amsterdam, Netherlands)
Shuang Liu, Li-Ling Zheng, Yang-Min Zhu, Hui-Juan Shen, Qi Zhong, Jing Huang, Cheng Li, Zhi Liu, Meng-Dong Yao, Rui-Ming Ou, Qing Zhang
OBJECTIVES: This study aimed to evaluate the effects of REGγ knockdown on the proliferation, apoptosis and migration of multiple myeloma (MM) cells, and reveal the potential regulatory mechanisms. METHODS: The expression of REGγ on myeloma cells of 28 MM patients was detected by Western blot. shRNA-REGγ-1 and shRNA-REGγ-2 were constructed to downregulate REGγ in RPMI-8226 cells. The proliferation, apoptosis and migration of transfected cells were analyzed by Cell Counting Kit 8 (CCK8), flow cytometry and transwell chamber, respectively...
October 11, 2017: Hematology (Amsterdam, Netherlands)
Stefan Wietek, Daniel Svorc, Anette Debes, Tor-Einar Svae
OBJECTIVES: To provide detailed data on the tolerability and safety of octagam(®) 10%, a ready-to-use intravenous immunoglobulin, in a subgroup of patients with immune thrombocytopenia (ITP) involved in an integrated analysis of post-authorisation safety surveillance (PASS) studies. METHODS: A subgroup analysis was conducted using data collected from two non-interventional studies that included patients with ITP treated with octagam(®) 10%. Patients were observed and monitored for possible adverse drug reactions (ADRs) during or after administration of octagam(®) 10%, with a particular focus on thromboembolic events (TEEs)...
October 11, 2017: Hematology (Amsterdam, Netherlands)
Jian Jiang, Xiang-Yun Yin, Xue-Wen Song, Dong Xie, Hui-Juan Xu, Jing Yang, Li-Rong Sun
PURPOSE: To extract feature ego-modules and pathways in childhood acute lymphoblastic leukemia (ALL) resistant to prednisolone treatment, and further to explore the mechanisms behind prednisolone resistance. MATERIALS AND METHODS: EgoNet algorithm was used to identify candidate ego-network modules, mainly via constructing differential co-expression network (DCN); selecting ego genes; collecting ego-network modules; refining candidate modules. Afterwards, statistical significance was calculated for these candidate modules...
October 11, 2017: Hematology (Amsterdam, Netherlands)
Seniz Ongoren, Ahmet Emre Eskazan, Veysel Suzan, Sercan Savci, Isil Erdogan Ozunal, Selin Berk, Fevzi Fırat Yalniz, Tugrul Elverdi, Ayse Salihoglu, Yucel Erbilgin, Sibel Aylin Iseri, Muhlis Cem Ar, Zafer Baslar, Yildiz Aydin, Nukhet Tuzuner, Ugur Ozbek, Teoman Soysal
OBJECTIVES: Newer tyrosine kinase inhibitors (TKIs) (bosutinib, ponatinib) and allogeneic hematopoietic stem cell transplantation (allo-HSCT) can be utilized as a salvage therapy in patients with chronic myeloid leukemia (CML) who failed two lines (imatinib → nilotinib or imatinib → dasatinib) of TKI therapy. However, these TKIs are not available in many countries and not all patients can undergo allo-HSCT. METHODS: In this study, CML patients who received dasatinib or nilotinib as a third-line treatment were retrospectively evaluated...
October 9, 2017: Hematology (Amsterdam, Netherlands)
Mara Jorgelina Ojeda, Irma Margarita Bragós, Karina Lucrecia Calvo, Gladis Marcela Williams, María Magdalena Carbonell, Arianna Flavia Pratti
OBJECTIVES: To establish the frequency of JAK2, MPL and CALR mutations in Argentinean patients with BCR-ABL1-negative  myeloproliferative neoplasms (MPN) and to compare their clinical and haematological features. METHODS: Mutations of JAK2V617F, JAK2 exon 12, MPL W515L/K and CALR were analysed in 439 Argentinean patients with BCR-ABL1-negative MPN, including 176 polycythemia vera (PV), 214 essential thrombocythemia (ET) and 49 primary myelofibrosis (PMF). RESULTS: In 94...
October 9, 2017: Hematology (Amsterdam, Netherlands)
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