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International Journal of Hematology

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https://www.readbyqxmd.com/read/28224273/over-expression-of-mir-196b-5p-is-significantly-associated-with-the-progression-of-myelodysplastic-syndrome
#1
Jing Wen, Ying Huang, Hongying Li, Xupai Zhang, Peng Cheng, Donghong Deng, Zhigang Peng, Jun Luo, Weihua Zhao, Yongrong Lai, Zhenfang Liu
Myelodysplastic syndrome (MDS) is a clonal stem cell disorder characterized by ineffective hematopoiesis with a high risk of transformation to acute myeloid leukemia (AML). miRNAs function as tumor suppressors and oncogenes in various cancers and regulate the differentiation potential of hematopoietic stem and progenitor cells (HSPCs). It has been suggested that miRNAs may play an important role in progression of MDS. We analyzed bone marrow samples collected from MDS patients according to different risk stratification indicated by the International Prognostic Scoring System (IPSS)...
February 21, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28220349/clofarabine-based-chemotherapy-as-a-bridge-to-transplant-in-the-setting-of-refractory-or-relapsed-acute-myeloid-leukemia-after-at-least-one-previous-unsuccessful-salvage-treatment-containing-fludarabine-a-single-institution-experience
#2
Alfredo Molteni, Marta Riva, Emanuele Ravano, Laura Marbello, Valentina Mancini, Giovanni Grillo, Elisa Zucchetti, Rosa Greco, Roberto Cairoli
For refractory or relapsed acute myeloid leukemia patients, allogeneic hematopoietic stem cell transplantation is the only curative treatment option, but the disease must be in remission before this can be attempted. "Salvage" therapy regimens containing high-dose cytarabine plus fludarabine or cladribine with or without anthracyclines or plus mitoxantrone and etoposide fail in 30-50% of cases. We report the outcome of 14 patients treated with a clofarabine-based treatment administered after at least one failed fludarabine-based "salvage" attempt in a "real life" (outside a clinical trial) context...
February 20, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28210942/how-we-treat-chronic-active-epstein-barr-virus-infection
#3
REVIEW
Akihisa Sawada, Masami Inoue, Keisei Kawa
Chronic active Epstein-Barr virus infection (CAEBV) is a prototype of the EBV-associated T- or NK-cell lymphoproliferative diseases, which also include hypersensitivity to mosquito bites and severe-type hydroavacciniforme. The manifestations of CAEBV are often self-limiting with minimum supportive care or only prednisolone and cyclosporine A with or without etoposide. However, allogeneic hematopoietic stem cell transplantation (HSCT) is the only cure, without which patients with CAEBV die within several years...
February 16, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28205066/a-single-center-analysis-of-chronic-graft-versus-host-disease-free-relapse-free-survival-after-alternative-donor-stem-cell-transplantation-in-children-with-hematological-malignancies
#4
Jiro Inagaki, Reiji Fukano, Maiko Noguchi, Jun Okamura
We assessed the clinical outcomes of allogeneic hematopoietic stem cell transplantation (SCT) from alternative donors for pediatric patients with hematological malignancies, defining graft-versus-host disease (GVHD)-free, relapse-free survival (GRFS) as a composite endpoint. We also defined chronic GVHD-free, relapse-free survival (cGRFS) as survival without severe chronic GVHD, relapse, or death. The probabilities of 2-year disease-free survival from a human leukocyte antigen (HLA) matched unrelated donor (n = 57), related donor with HLA-1 antigen mismatch in the graft-versus-host direction (1Ag-GvH-MMRD, n = 28), and unrelated umbilical cord blood (n = 35) were 52...
February 15, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28197965/allogeneic-stem-cell-transplantation-for-adult-patients-with-acute-lymphoblastic-leukemia-who-had-central-nervous-system-involvement-a-study-from-the-adult-all-working-group-of-the-japan-society-for-hematopoietic-cell-transplantation
#5
Akio Shigematsu, Shinichi Kako, Kenjiro Mitsuhashi, Koji Iwato, Naoyuki Uchida, Yoshinobu Kanda, Takahiro Fukuda, Masashi Sawa, Yasushi Senoo, Hiroyasu Ogawa, Koichi Miyamura, Satoru Takada, Tokiko Nagamura-Inoue, Yasuo Morishima, Tatsuo Ichinohe, Yoshiko Atsuta, Shuichi Mizuta, Junji Tanaka
The prognosis for adult acute lymphoblastic leukemia (ALL) patients with central nervous system (CNS) involvement (CNS+) who received allogeneic hematopoietic stem cell transplantation (allo-SCT) remains unclear. We retrospectively compared the outcomes of allo-SCT for patients with CNS involvement and for patients without CNS involvement (CNS-) using a database in Japan. The eligibility criteria for this study were as follows: diagnosis of ALL, aged more than 16 years, allo-SCT between 2005 and 2012, and first SCT...
February 14, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28197964/up-regulated-exosomal-mirna-140-3p-in-cml-patients-with-musculoskeletal-pain-associated-with-discontinuation-of-tyrosine-kinase-inhibitors
#6
Michiyo Asano, Tomohiro Umezu, Seiichiro Katagiri, Chiaki Kobayashi, Tetsuzo Tauchi, Moritaka Gotoh, Keiko Ando, Seiichi Okabe, Junko H Ohyashiki, Kazuma Ohyashiki
We analyzed the exosomal miRNA from peripheral blood from CML patients with musculoskeletal pain after stopping tyrosine kinase inhibitors to identify possible factors related to this manifestation. Exosomal miRNA profiling using TaqMan low-density array revealed that exosomal miR-140-3p was significantly elevated in CML patients showing musculoskeletal pain, when compared to those without such pain (P = 0.0336) or healthy individuals (P = 0.0022). All five CML patients with musculoskeletal pain and increased exosomal miR-140-3p levels sustained deep molecular responses: four of them achieved symptom relief and a significant decrease in exosomal miR-140-3p levels was evident...
February 14, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28185204/application-of-an-improved-flow-cytometry-based-nk-cell-activity-assay-in-adult-hemophagocytic-lymphohistiocytosis
#7
Jia Zhang, Yini Wang, Lin Wu, Jingshi Wang, Ran Tang, Shuo Li, Jianhang Chen, Zhuo Gao, Ruijun Pei, Zhao Wang
Low or absent natural killer (NK) cell activity is included as one of the HLH-2004 diagnostic criteria. To improve the diagnosis of HLH, we aimed to establish a rapid and reliable NK cell activity assay that avoids the use of radioactivity. The K562 cell line, as standard NK target cells, was engineered to stably express enhanced green fluorescent protein (EGFP), which can be quantified by flow cytometry. The EGFP-flow cytometry method for measuring NK cell activity was improved by double staining of early and late apoptotic target cells...
February 9, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28185203/hla-haploidentical-hematopoietic-cell-transplantation-using-clofarabine-and-busulfan-for-refractory-pediatric-hematological-malignancy
#8
Masatoshi Takagi, Yasuyoshi Ishiwata, Yuki Aoki, Satoshi Miyamoto, Akihiro Hoshino, Kazuaki Matsumoto, Akira Nishimura, Mari Tanaka, Masakatsu Yanagimachi, Noriko Mitsuiki, Kohsuke Imai, Hirokazu Kanegane, Michiko Kajiwara, Kanako Takikawa, Tsukasa Mae, Osamu Tomita, Junya Fujimura, Masato Yasuhara, Daisuke Tomizawa, Shuki Mizutani, Tomohiro Morio
Haploidentical hematopoietic cell transplantation (HCT) conditioning with clofarabine and target area under the blood concentration-time curve (AUC)-based busulfan adjustment was performed in three patients with refractory pediatric leukemia. The target AUC for two patients who had already received multiple transplantations was 3600 and 4000 μmol min/L, and that for the patient with Down's syndrome was 3000 μmol min/L. Regimen-related toxicity was well tolerated in all cases. All three maintained cytological remission throughout the follow-up period (between 31 and 167 weeks)...
February 9, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28185202/erratum-to-bortezomib-interferes-with-adhesion-of-b-cell-precursor-acute-lymphoblastic-leukemia-cells-through-sparc-up-regulation-in-human-bone-marrow-mesenchymal-stromal-stem-cells
#9
Masaki Iwasa, Yasuo Miura, Aya Fujishiro, Sumie Fujii, Noriko Sugino, Satoshi Yoshioka, Asumi Yokota, Terutoshi Hishita, Hideyo Hirai, Akira Andoh, Tatsuo Ichinohe, Taira Maekawa
No abstract text is available yet for this article.
February 9, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28176228/primary-uterine-diffuse-large-b-cell-lymphoma-dlbcl-in-a-patient-with-prolonged-insertion-of-intrauterine-device-iud
#10
Takuya Shimizu, Kazuo Hatanaka, Hitomi Kaneko, Toshihide Shimada, Kazunori Imada
A 49-year-old female from China was referred to our hospital after endocervical polypectomy. Twenty years before admission, after the birth of her first child, an intrauterine device (IUD) had been inserted due to the one-child policy in China. She had noticed abnormal vaginal bleeding with a foul smell 3 years before admission. Then the IUD was removed and a polyp was found at the IUD contact site. Two months before admission, endocervical polypectomy was performed. Lymphoma was suspected by histological examination and she was referred to our hospital...
February 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28176227/neoplasms-in-the-bone-marrow-niches-disturbance-of-the-microecosystem
#11
REVIEW
Li-Li Mu, Fang Ke, Xiao-Lin Guo, Jie-Jing Cai, Deng-Li Hong
Increasing studies have revealed that the interaction between malignant cells and the microenvironment (so called niche) in the bone marrow can influence the development and progression of the hematopoietic malignancies. Here, we reviewed the current findings in the field, focusing the niche alterations in promoting the emergency of malignancies, in interfering with the blood reconstitution of normal hematopoietic stem and progenitor cells, and in protecting leukemic stem cells from therapy which causes disease relapse...
February 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28176226/evaluation-of-the-safety-and-efficacy-of-recombinant-soluble-thrombomodulin-for-patients-with-disseminated-intravascular-coagulation-associated-with-acute-leukemia-multicenter-prospective-study-by-the-tohoku-hematology-forum
#12
Hisayuki Yokoyama, Naoto Takahashi, Yuna Katsuoka, Mitsue Inomata, Toshihiro Ito, Kuniaki Meguro, Yoshihiro Kameoka, Riko Tsumanuma, Kazunori Murai, Hideyoshi Noji, Kenichi Ishizawa, Shigeki Ito, Yasushi Onishi, Hideo Harigae
It has been suggested that use of recombinant soluble thrombomodulin (rTM) is superior to conventional drugs in treatment of disseminated intravascular coagulation (DIC) complicating acute leukemia. However, its safety and efficacy have not been fully examined in prospective studies. Here, we performed a multicenter prospective study to examine outcomes of rTM treatment for DIC in patients with acute leukemia. Of 33 patients registered in this study, 13 had acute myeloid leukemia (AML), three had acute lymphoblastic leukemia (ALL), and 17 had acute promyelocytic leukemia (APL)...
February 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28176225/regulation-of-normal-and-leukemic-stem-cells-through-cytokine-signaling-and-the-microenvironment
#13
REVIEW
Virginia Camacho, Victoria McClearn, Sweta Patel, Robert S Welner
Leukemias depend on transformed stem cells for their growth and thus these cells represent important therapeutic targets. However, leukemic stem cells resemble normal hematopoietic stem cells (HSCs) with respect to most surface markers, gene expression patterns, and ability to be transplanted. Furthermore, the microenvironment that supports healthy HSCs non-hematopoietic populations, and immune cells correspondingly, the cytokines, adhesion molecules and signal transduction pathways are also impaired during leukemogenesis...
February 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28176224/erratum-to-assessing-the-safety-and-efficacy-of-ruxolitinib-in-a-multicenter-open-label-study-in-japanese-patients-with-myelofibrosis
#14
Norio Komatsu, Keita Kirito, Kazuya Shimoda, Takayuki Ishikawa, Kohshi Ohishi, Kazuma Ohyashiki, Naoto Takahashi, Hikaru Okada, Taro Amagasaki, Toshio Yonezu, Koichi Akashi
No abstract text is available yet for this article.
February 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28168417/first-case-report-of-hemophilia-b-leyden-in-japan
#15
Atsuki Yamashita, Chiai Nagae, Mika Mori, Tomoko Ashikaga, Tetsuhito Kojima, Masashi Taki
Hemophilia B Leyden is a unique subtype of hemophilia B, characterized by increasing factor IX activity (FIX:C) after puberty and a lower normal range of FIX:C throughout adulthood. However, to date, no Japanese case has been reported. Here, we report a case of hemophilia B Leyden in a 22-year-old male. He suffered from subgaleal hematoma, and was subsequently diagnosed with hemophilia B (FIX:C 0.2%) in the neonatal period. Both his parents are Japanese. There was no history of hemophilia in his family. FIX:C gradually increased with age (8% at age = 1; 14% at age = 7; 19% at age = 12; 32% at age = 18)...
February 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28168416/the-first-validated-criteria-for-effective-screening-and-a-new-simplified-method-for-%C3%AE-globin-gene-sequencing-for-diagnosis-of-uncommon-%C3%AE-globin-mutations
#16
Noppacharn Uaprasert, Rung Settapiboon, Supaporn Amornsiriwat, Pranee Sutcharitchan, Ponlapat Rojnuckarin
No well-defined phenotypes that distinguish between unknown α- and β-globin mutations have been reported to date. Direct DNA sequencing of α-globin genes can be technically challenging, as α1- and α2-globin genes are nearly indistinguishable. To detect hemoglobin variants (HbXs) on Hb analysis, the entire β- and α-globin genes were directly sequenced using a newly developed sequencing protocol for α-globin genes. An algorithm to distinguish between α- and β-HbXs was constructed and subsequently validated in the independent validation group...
February 6, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28168415/comparison-of-levofloxacin-and-garenoxacin-for-antibacterial-prophylaxis-during-neutropenia
#17
Ryoko Yamasaki, Junya Kanda, Yu Akahoshi, Hirofumi Nakano, Tomotaka Ugai, Hidenori Wada, Koji Kawamura, Yuko Ishihara, Kana Sakamoto, Miki Sato, Masahiro Ashizawa, Tomohito Machishima, Kiriko Terasako-Saito, Shun-Ichi Kimura, Misato Kikuchi, Hideki Nakasone, Rie Yamazaki, Shinichi Kako, Junji Nishida, Yoshinobu Kanda
Levofloxacin (LVFX) is widely used for antibacterial prophylaxis during neutropenia. Garenoxacin (GRNX), which has been investigated in Japan, has stronger antibacterial activity than LVFX against gram-positive bacteria; however, no studies have compared the effectiveness of LVFX and GRNX. We retrospectively analyzed 42 patients with acute leukemia and 32 patients who underwent hematopoietic cell transplantation. Thirty-one patients before September 2009 received GRNX, and subsequent 43 patients received LVFX...
February 6, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28161763/the-fibrous-form-of-intracellular-inclusion-bodies-in-recombinant-variant-fibrinogen-producing-cells-is-specific-to-the-hepatic-fibrinogen-storage-disease-inducible-variant-fibrinogen
#18
Shinpei Arai, Naoko Ogiwara, Saki Mukai, Yuka Takezawa, Mitsutoshi Sugano, Takayuki Honda, Nobuo Okumura
Fibrinogen storage disease (FSD) is a rare disorder that is characterized by the accumulation of fibrinogen in hepatocytes and induces liver injury. Six mutations in the γC domain (γG284R, γT314P, γD316N, the deletion of γG346-Q350, γG366S, and γR375W) have been identified for FSD. Our group previously established γ375W fibrinogen-producing Chinese hamster ovary (CHO) cells and observed aberrant large granular and fibrous forms of intracellular inclusion bodies. The aim of this study was to investigate whether fibrous intracellular inclusion bodies are specific to FSD-inducible variant fibrinogen...
February 4, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28160213/a-multicenter-single-arm-phase-ii-clinical-trial-of-bendamustine-monotherapy-in-patients-with-chronic-lymphocytic-leukemia-in-japan
#19
Yoshiaki Ogawa, Koji Izutsu, Toru Kiguchi, Ilseung Choi, Yoshifusa Takatsuka, Kiyoshi Ando, Junji Suzumiya
The present study was intended to examine the efficacy and safety of bendamustine monotherapy in patients with previously untreated chronic lymphocytic leukemia (CLL) for whom treatment with fludarabine (FLU) was not suitable, and in FLU-naïve patients with relapsed/refractory CLL. We intravenously administered bendamustine 100 mg/m(2)/day on days 1 and 2 of each 28-day cycle to 10 patients (eight previously untreated; two relapsed/refractory) up to six cycles. The primary endpoint was overall response rate (ORR: partial remission or better) according to the 2008 International Workshop on the CLL guidelines...
February 3, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28144786/serum-concentrations-of-apoptosis-associated-molecules-in-septic-children-with-leukemia-neutropenia-and-fever
#20
Jesus Reyna-Figueroa, Alfredo Lagunas-Martínez, Patricia Galindo-Delgado, María Fernanda Fernández-Bautista, Paola Guadalupe Castro-Oteo, Pilar Martínez-Matsumoto, Erika Melchy Perez, Yvonne Rosenstein, Ana Elena Limón-Rojas, Federico Javier Ortiz-Ibarra, Vicente Madrid-Marina
It has been shown that Fas, Fas-L, TNF and TNFR-1 display high serum concentrations in subjects with sepsis. This suggests that these are potential severity markers. However, the serum concentration of these molecules in children with leukemia and suspected sepsis has to be established before proposing their use as diagnostic biomarkers. We included children <17 years of age diagnosed with acute lymphoblastic leukemia with neutropenia and fever (NF). The subjects were divided into two groups: (1) leukemia and NF with sepsis, (2) leukemia and NF without sepsis...
January 31, 2017: International Journal of Hematology
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