Journals International Journal of Hemat...

International Journal of Hematology
Jing Zhong, Chunping Mo, Yan Zhang, Lingbo Li
Augustine is a newly identified blood group system comprising four antigens, one of which is the high-frequency antigen Ata in the original "series". Four antigens are located on a multipass membrane glycoprotein equilibrative nucleoside transporter 1 (ENT1), and equilibrative nucleoside transporter is encoded by SLC29A1. In 2016, the International Society of Blood Transfusion (ISBT) recognised Augustine as a blood group system and numbered it as 036. The glycoprotein ENT1 transports nucleotides into cells to participate in the synthesis of DNA and RNA, and this is an important link for chemotherapeutic glycosides to enter tumour cells...
May 20, 2024: International Journal of Hematology
Yoshiyuki Ogawa, Akitada Ichinose, Kunio Yanagisawa, Masayoshi Souri, Tsukasa Osaki, Shuhei Kanaya, Hiroshi Handa
Autoimmune von Willebrand factor (VWF) deficiency (AiVWFD) caused by anti-VWF autoantibodies is a rare bleeding disorder, whereas "non-immune" acquired von Willebrand syndrome (AVWS) caused by other etiologies is more common. Therefore, only 40 patients with AiVWFD have been identified in Japan through an ongoing nationwide survey on autoimmune coagulation factor deficiencies. This may be due to the inability to efficiently detect anti-VWF antibodies, as anti-VWF antibody testing is not routine. An 80-year-old Japanese woman developed AVWS and experienced bleeding after two separate common colds...
May 18, 2024: International Journal of Hematology
Hirokazu Kashiwagi
No abstract text is available yet for this article.
May 16, 2024: International Journal of Hematology
Xiangguo Shi, Mengdie Feng, Daisuke Nakada
Acute myeloid leukemia (AML) is a heterogeneous hematologic malignancy primarily driven by an immature population of AML cells termed leukemia stem cells (LSCs) that are implicated in AML development, chemoresistance, and relapse. An emerging area of research in AML focuses on identifying and targeting the aberrant metabolism in LSCs. Dysregulated metabolism is involved in sustaining functional properties of LSCs, impeding myeloid differentiation, and evading programmed cell death, both in the process of leukemogenesis and in response to chemotherapy...
May 15, 2024: International Journal of Hematology
Hiroki Akiyama, Hagop Kantarjian, Elias Jabbour, Ghayas Issa, Fadi G Haddad, Nicholas J Short, Shimin Hu, Jo Ishizawa, Michael Andreeff, Koji Sasaki
STUDY AIMS: To evaluate the outcomes of patients with 3q26.2/MECOM-rearranged chronic myeloid leukemia (CML). METHODS: We reviewed consecutive adult patients with 3q26.2/MECOM-rearranged CML between January 1, 1998 and February 16, 2023. Rearrangements of 3q26.2/MECOM were confirmed by conventional cytogenetics, and fluorescence in situ hybridization starting in 2015. RESULTS: We identified 55 patients with MECOM-rearranged CML, including 23 in chronic phase (CP) or accelerated phase (AP) and 32 in blast phase (BP)...
May 15, 2024: International Journal of Hematology
Yawara Kawano, Nao Nishimura, Jun-Ichirou Yasunaga
Serum immunofixation electrophoresis (IFE) is often performed for screening monoclonal proteins (M proteins) in immunoglobulin light-chain amyloidosis (AL amyloidosis). However, the performance of serum IFE for detecting M protein in AL amyloidosis patients is often insufficient. In this study, we examined the detection rate of serum M protein in newly diagnosed AL amyloidosis patients and analyzed differences in M protein detection between IFE methods. Among 60 patients newly diagnosed with AL amyloidosis, 22 had undetectable serum M protein by IFE with the Epalyzer2 system...
May 13, 2024: International Journal of Hematology
Lin Liu, Ding-Song Zhang, Xue-Juan Zhang, Zhong-Zheng Zheng, San-Bin Wang
Pegylated recombinant human granulocyte colony-stimulating factor (PEG-rhG-CSF) has been introduced for the mobilization of peripheral blood stem cells (PBSCs). However, no cases of acute lung injury (ALI) in healthy donors have been reported, and the underlying mechanisms remain poorly understood. We first reported a case of ALI caused by PEG-rhG-CSF in a healthy Chinese donor, characterized by hemoptysis, hypoxemia, and patchy shadows. Ultimately, hormone administration, planned PBSC collection, leukocyte debridement, and planned PBSC collection resulted in active control of the donor's ALI...
May 10, 2024: International Journal of Hematology
Yusuke Naoi, Daisuke Ennishi
Diffuse large B-cell lymphoma (DLBCL) is the most common type of lymphoid tumor, and accounts for approximately 30-40% of non-Hodgkin lymphomas. Although the prognosis has significantly improved with the advent of rituximab combination chemotherapy in the early 2000s, recurrence still occurs in about 40% of cases. Even though chemotherapy with increased dose-intensity is used in recurrent cases, the prognosis of such patients remains poor. Thus, the development of personalized medicine, including molecular-targeted drugs, is required to improve the prognosis of DLBCL patients, and further understanding of the molecular pathogenesis of DLBCL is essential for this purpose...
May 10, 2024: International Journal of Hematology
Wenyu Zhang, Jingmei Li, Keita Yamamoto, Susumu Goyama
Acute myeloid leukemia (AML) with t(8;21)(q22;q22.1);RUNX1-ETO is one of the most common subtypes of AML. Although t(8;21) AML has been classified as favorable-risk, only about half of patients are cured with current therapies. Several genetic abnormalities, including TP53 mutations and deletions, negatively impact survival in t(8;21) AML. In this study, we established Cas9+ mouse models of t(8;21) AML with intact or deficient Tpr53 (a mouse homolog of TP53) using a retrovirus-mediated gene transfer and transplantation system...
May 3, 2024: International Journal of Hematology
Dan Tomomasa, Kay Tanita, Yuriko Hiruma, Akihiro Hoshino, Ko Kudo, Shohei Azumi, Mitsutaka Shiota, Masayoshi Yamaoka, Katsuhide Eguchi, Masataka Ishimura, Yuka Tanaka, Keiji Iwatsuki, Keisuke Okuno, Asahito Hama, Ken-Ichi Sakamoto, Takashi Taga, Kimitoshi Goto, Haruka Ota, Akihiro Ichiki, Kaori Kanda, Takako Miyamura, Saori Endo, Hidenori Ohnishi, Yoji Sasahara, Ayako Arai, Benjamin Fornier, Ken-Ichi Imadome, Tomohiro Morio, Sylvain Latour, Hirokazu Kanegane
When Epstein-Barr virus (EBV) infection is suspected, identification of infected cells is important to understand the pathogenesis, determinine the treatment strategy, and predict the prognosis. We used the PrimeFlow™ RNA Assay Kit with a probe to detect EBV-encoded small RNAs (EBERs) and multiple surface markers, to identify EBV-infected cells by flow cytometry. We analyzed a total of 24 patients [11 with chronic active EBV disease (CAEBV), 3 with hydroa vacciniforme lymphoproliferative disorder, 2 with X-linked lymphoproliferative disease type 1 (XLP1), 2 with EBV-associated hemophagocytic lymphohistiocytosis, and 6 with posttransplant lymphoproliferative disorder (PTLD)]...
May 3, 2024: International Journal of Hematology
Yuta Kaito, Yoichi Imai
In hematologic oncology, acute myeloid leukemia (AML) presents a significant challenge due to its complex genetic landscape and resistance to conventional therapies. Despite advances in treatment, including intensive chemotherapy and hematopoietic stem cell transplantation (HSCT), the prognosis for many patients with AML remains poor. Recently, immunotherapy has emerged as a promising approach to improve outcomes by augmenting existing treatments. Natural killer (NK) cells, a subset of innate lymphoid cells, have garnered attention for their potent cytotoxic capabilities against AML cells...
May 1, 2024: International Journal of Hematology
Olav Versloot, J van der Net, K Fischer
No abstract text is available yet for this article.
May 1, 2024: International Journal of Hematology
Daichi Sajiki, Nao Yoshida, Hideki Muramatsu, Kimiyoshi Sakaguchi, Naoko Maeda, Norifumi Yokoyama, Yuji Miyajima, Makito Tanaka, Yoshiyuki Takahashi, Asahito Hama
Early T-cell precursor acute lymphoblastic leukemia (ETP-ALL), mixed phenotypic acute leukemia (MPAL), and acute myeloid leukemia with minimal differentiation (AML-M0) all originate from immature hematopoietic progenitor cells and have a poor prognosis. We investigated the clinical characteristics of these immature leukemias in 17 children (ETP-ALL: 8, MPAL: 5, AML-M0: 4) at seven institutions. Clinical and laboratory findings were comparable across disease types. Eleven and six patients received ALL- and AML-oriented induction chemotherapy, with six and four achieving complete remission (CR), respectively...
April 30, 2024: International Journal of Hematology
Philip Murphy
No abstract text is available yet for this article.
April 29, 2024: International Journal of Hematology
Kengo Katsuki, Takayoshi Tachibana, Akihiko Izumi, Kumryo Kim, Taisei Suzuki, Masatsugu Tanaka, Hideaki Nakajima
A 43-year-old woman was referred to our department for hematopoietic stem cell transplantation for acute myeloid leukemia, as she failed to achieve remission following induction therapy. Umbilical cord blood transplantation was initially planned; however, multiple anti-human leukocyte antigen (HLA) antibodies with a mean fluorescence intensity of over 10,000 were detected, and optimal umbilical cord blood could not be obtained. The plan was then switched to peripheral blood stem cell transplantation (PBSCT) from the patient's son, who had a 5/8 HLA haploidentical match...
April 27, 2024: International Journal of Hematology
Chendong Jiang, Shu Deng, Xiaohan Ma, Juan Song, Jinpeng Li, Enwu Yuan
Gut microbiota have been linked to immune thrombocytopenia (ITP) and Henoch-Schönlein purpura (HSP) in recent studies, but a cause-and-effect relationship is unclear. We used Mendelian randomization (MR) to assess causal relationships between gut microbiota and HSP/ITP using summary statistics from the GWAS dataset of the international MiBioGen and FinnGen consortium. The IVW method was used as the main evaluation indicator. MR analysis of 196 intestinal flora and HSP/ITP/sTP phenotypes showed that 12 flora were potentially causally associated with ITP, 6 with HSP, and 9 with sTP...
April 26, 2024: International Journal of Hematology
Feng-Ming Tien, Hsin-An Hou
Mutations in CCAAT enhancer binding protein α (CEBPA) occur in approximately 10% of patients with de novo acute myeloid leukemia (AML). Emerging evidence supports that in-frame mutations in the basic leucine zipper domain of CEBPA (CEBPAbZIP-inf ) confer a survival benefit, and CEBPAbZIP-inf replaced CEBPA double mutations (CEBPAdm ) as a unique entity in the 2022 World Health Organization (WHO-2022) classification and International Consensus Classification (ICC). However, challenges remain in daily clinical practice since more than 30% patients with CEBPAbZIP-inf die of AML despite intensive treatment...
April 26, 2024: International Journal of Hematology
Taku Kikuchi, Nobuhiro Tsukada, Kodai Kunisada, Moe Nomura-Yogo, Yuki Oda, Kota Sato, Tomomi Takei, Mizuki Ogura, Yu Abe, Kenshi Suzuki, Tadao Ishida
The introduction of daratumumab has improved treatment outcomes for multiple myeloma (MM). However, infectious complications are a concern in patients receiving daratumumab. Although some reports have explored the association between daratumumab and cytomegalovirus (CMV) infection, most of these have focused on relapsed or refractory cases, and few describe patients with newly diagnosed MM (NDMM). In this study, we retrospectively analyzed CMV infections in 53 patients with NDMM who received daratumumab as induction therapy...
April 19, 2024: International Journal of Hematology
Masataka Hosoi, Kazunori Ueno, Jun Kikuchi, Jun Miyauchi, Reina Ooka, Kaito Takikawa, Yuya Arai, Misato Kikuchi, Takuro Watanabe
Gamma heavy chain disease (gHCD) is a rare B-cell lymphoproliferative disorder that mostly occurs after childbearing age. Here we report the first case of gHCD in a pregnant patient that was diagnosed in the second trimester, and another pregnancy in the same patient after initial treatment for gHCD. The former pregnancy ended in intrauterine fetal death, believed to be caused by insufficient maternal blood flow due to multiple placental infarcts. The latter pregnancy course was uneventful. Although we cannot rule out the possibility that the poor outcome of the former pregnancy was due to an unfortunate complication independent of gHCD, the courses of these pregnancies suggest that non-lymphomatous gamma heavy chain may have a significant impact on pregnancy and that its removal by treatment may improve outcomes...
April 18, 2024: International Journal of Hematology
Hiroyuki Fujita
No abstract text is available yet for this article.
April 17, 2024: International Journal of Hematology
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