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  1. Article ; Online: Alleviating the consequences of nuclear disasters on views on radiation risks among physicians and patients: Fukushima experience.

    Tamaki, Tomoaki / Ozaki, Akihiko / Sato, Hisashi / Tsubokura, Masaharu / Suzuki, Yoshiyuki

    Journal of global health

    2021  Volume 11, Page(s) 3069

    MeSH term(s) Disasters ; Fukushima Nuclear Accident ; Humans ; Physicians
    Language English
    Publishing date 2021-04-30
    Publishing country Scotland
    Document type Journal Article ; Review
    ZDB-ID 2741629-X
    ISSN 2047-2986 ; 2047-2986
    ISSN (online) 2047-2986
    ISSN 2047-2986
    DOI 10.7189/jogh.11.03069
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  2. Article ; Online: Theoretical Validation of

    Fujimoto, Keiichi / Higaki, Tamaki / Abe, Jun / Fujita, Masaharu / Kawakami, Tsuyoshi

    Chemical research in toxicology

    2022  Volume 35, Issue 11, Page(s) 2107–2121

    Abstract: Amino acid derivative reactivity assay (ADRA) is ... ...

    Abstract Amino acid derivative reactivity assay (ADRA) is an
    MeSH term(s) Animals ; Animal Testing Alternatives/methods ; Indicators and Reagents ; Skin/metabolism ; Biological Assay/methods ; Cysteine/chemistry
    Chemical Substances Indicators and Reagents ; Cysteine (K848JZ4886)
    Language English
    Publishing date 2022-10-31
    Publishing country United States
    Document type Journal Article
    ZDB-ID 639353-6
    ISSN 1520-5010 ; 0893-228X
    ISSN (online) 1520-5010
    ISSN 0893-228X
    DOI 10.1021/acs.chemrestox.2c00228
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: The "GU-GU-RU" project to eliminate discrimination related to the health effects of the Fukushima nuclear accident.

    Amir, Isamu / Eguchi, Yuichiro / Saotome, Kousaku / Ogawa, Soichiro / Kojima, Yoshiyuki / Tamaki, Tomoaki / Tsubokura, Masaharu

    BMC public health

    2023  Volume 23, Issue 1, Page(s) 2050

    Abstract: Background: Although 12 years have passed since Great East Japan Earthquake and following Fukushima nuclear accident, approximately 40% of Japanese citizen still believe that the current radiation exposure in Fukushima residents will likely/ very likely ...

    Abstract Background: Although 12 years have passed since Great East Japan Earthquake and following Fukushima nuclear accident, approximately 40% of Japanese citizen still believe that the current radiation exposure in Fukushima residents will likely/ very likely to cause genetic effects of radiation. This incorrect understanding could continue unexpected discrimination and prejudice towards those from Fukushima now and in the future. In order to provide updated knowledge and eliminate rumors related to radiation, Japanese Ministry of the Environment has launched "GU-GU-RU" project in 2021 with consisting of five sections.
    Objective: (1) To discuss the objectives and effects of the "GU-GU-RU" project (results after the first year), (2) to present administrative measures that may be effective in the long-term to prevent unjustified discrimination and prejudice, and (3) to eliminate rumors in the event of future large-scale disasters, including radiation disasters.
    Methods: We showed the contents of each sections carried out under the project and observed the result of first-year activities in each section.
    Results: Among the programs, the "Radiation College" has steadily produced positive results, with nearly 1,300 students participating and 50 students sharing their thoughts and ideas. In addition, the project has adopted strategies such as creating and broadcasting a TV program and collaborations with manga, which are expected to have a significant impact on society.
    Conclusions: Compared to previous efforts on disseminating information related to health effect of radiation exposure, the "GU-GU-RU" project has taken a different approach in providing primary data of radiation and its health effects, which could become a better understanding of health effects of radiation for the general public, in order to eliminate rumors that may lead unjustified discrimination and prejudice.
    MeSH term(s) Humans ; Fukushima Nuclear Accident ; Disasters ; Earthquakes ; Radiation Exposure ; Japan ; Nuclear Power Plants
    Language English
    Publishing date 2023-10-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 2041338-5
    ISSN 1471-2458 ; 1471-2458
    ISSN (online) 1471-2458
    ISSN 1471-2458
    DOI 10.1186/s12889-023-16883-2
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  4. Article ; Online: Impact of Cytokine Release Syndrome on Cardiac Function After Chimeric Antigen Receptor-T Cell Therapy.

    Sunayama, Isamu / Min, Kyung-Duk / Orihara, Yoshiyuki / Oboshi, Makiko / Yoshihara, Satoshi / Yoshihara, Kyoko / Tamaki, Hiroya / Teramoto, Masahiro / Nishimura, Koichi / Eguchi, Akiyo / Naito, Yoshiro / Higasa, Satoshi / Asakura, Masanori / Ishihara, Masaharu

    JACC. Asia

    2023  Volume 3, Issue 6, Page(s) 944–946

    Language English
    Publishing date 2023-10-24
    Publishing country United States
    Document type Journal Article
    ISSN 2772-3747
    ISSN (online) 2772-3747
    DOI 10.1016/j.jacasi.2023.08.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Outcomes of Cessation of Nucleos(t)ide Analog Administration on Hepatitis B Virus Reactivation after Allogeneic Hematopoietic Stem Cell Transplantation: A Nationwide Retrospective Study.

    Onozawa, Masahiro / Kusumoto, Shigeru / Najima, Yuho / Hashimoto, Hiroya / Okada, Kohei / Tamaki, Masaharu / Tanaka, Masatsugu / Sato, Takayuki / Takahashi, Tsutomu / Hatano, Kaoru / Onodera, Koichi / Moriuchi, Yukiyoshi / Yakushijin, Kimikazu / Kanda, Junya / Nagafuji, Koji / Ogata, Masao / Nakano, Nobuaki / Tamori, Akihiro / Mizokami, Masashi

    Transplantation and cellular therapy

    2024  Volume 30, Issue 3, Page(s) 330.e1–330.e8

    Abstract: Monitoring of hepatitis B virus (HBV)-DNA and HBV-DNA-guided preemptive therapy using nucleos(t)ide analogs (NAs) are recommended to prevent the development of hepatitis due to HBV reactivation after allogeneic hematopoietic stem cell transplantation ( ... ...

    Abstract Monitoring of hepatitis B virus (HBV)-DNA and HBV-DNA-guided preemptive therapy using nucleos(t)ide analogs (NAs) are recommended to prevent the development of hepatitis due to HBV reactivation after allogeneic hematopoietic stem cell transplantation (allo-HSCT) in recipients with resolved HBV infection. However, little is known about the appropriate duration of NA treatment and the effect of NA cessation on the recurrence of HBV reactivation. This study aimed to clarify the consequences of NA cessation in allo-HSCT recipients with resolved HBV infection who experienced HBV reactivation following transplantation. We retrospectively reviewed the clinical records of recipients with resolved HBV infection (hepatitis B surface antigen [HBsAg]-negative, anti-HBc-positive) before allo-HSCT who had been diagnosed with HBV reactivation (HBsAg-positive and/or HBV-DNA detectable) after allo-HSCT between January 2010 and December 2020. A total of 72 patients from 16 institutions were registered (median age, 60 years; age range, 27 to 73 years; 42 males and 30 females). The day of initial HBV reactivation ranged from day 10 to day 3034 after allo-HSCT (median, 513 days). Anti-HBs were lost in >80% of the patients at the time of HBV reactivation. All 72 patients received preemptive NAs, and no fatal HBV reactivation-related hepatitis was observed. HBV-DNA without hepatitis was continuously detected in 5 patients during the follow-up period. Administration of NAs was discontinued in 24 of 72 patients (33%) by physician decision. Second HBV reactivation occurred in 11 of the 24 patients (46%) in whom administration of NAs was discontinued. The duration of NA treatment did not differ significantly between patients with or without second HBV reactivation. The frequency of further HBV reactivation tended to be lower in patients with an anti-HBs titer of >10 mIU/mL at the time of NA cessation. Multiple reactivations of HBV after NA cessation was common in patients with HBV reactivation who underwent allo-HSCT despite the long duration of NAs. Careful monitoring of HBV-DNA is important even after the discontinuation of NAs in the case with HBV reactivation after allo-HSCT, because multiple reactivations could occur. Active immunization by HB vaccine might be effective for suppressing further HBV reactivation after cessation of NAs.
    MeSH term(s) Male ; Female ; Humans ; Middle Aged ; Adult ; Aged ; Hepatitis B virus/genetics ; Retrospective Studies ; Hepatitis B Surface Antigens/therapeutic use ; DNA, Viral/therapeutic use ; Hepatitis B/prevention & control ; Hepatitis B/diagnosis ; Hepatitis B/drug therapy ; Hepatitis B Antibodies/therapeutic use ; Hematopoietic Stem Cell Transplantation/adverse effects ; Hepatitis A
    Chemical Substances Hepatitis B Surface Antigens ; DNA, Viral ; Hepatitis B Antibodies
    Language English
    Publishing date 2024-01-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3062231-1
    ISSN 2666-6367
    ISSN (online) 2666-6367
    DOI 10.1016/j.jtct.2024.01.059
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  6. Article ; Online: Gene expression and TCR amino acid sequences selected by HLA-A02:01-restricted CTLs specific to HTLV-1 in ATL patients.

    Kusuda, Machiko / Nakasone, Hideki / Yoshimura, Kazuki / Okada, Yosuke / Tamaki, Masaharu / Matsuoka, Akari / Ishikawa, Takuto / Meno, Tomohiro / Nakamura, Yuhei / Kawamura, Masakatsu / Takeshita, Junko / Kawamura, Shunto / Yoshino, Nozomu / Misaki, Yukiko / Gomyo, Ayumi / Tanihara, Aki / Kimura, Shun-Ichi / Kako, Shinichi / Kanda, Yoshinobu

    British journal of haematology

    2023  Volume 202, Issue 3, Page(s) 578–588

    Abstract: Adult T-cell leukaemia/lymphoma (ATL) is an aggressive malignancy of peripheral T cells caused by human T-cell lymphotropic virus type-1 (HTLV-1). Tax is the most important regulatory protein for HTLV-1. We aimed to reveal a unique amino acid sequence ( ... ...

    Abstract Adult T-cell leukaemia/lymphoma (ATL) is an aggressive malignancy of peripheral T cells caused by human T-cell lymphotropic virus type-1 (HTLV-1). Tax is the most important regulatory protein for HTLV-1. We aimed to reveal a unique amino acid sequence (AA) of complementarity-determining region 3 (CDR3) of the T-cell receptor (TCR)β and TCRα chains of HLA-A*02:01-restricted Tax
    MeSH term(s) Adult ; Humans ; Human T-lymphotropic virus 1/genetics ; T-Lymphocytes, Cytotoxic ; Amino Acid Sequence ; Leukemia-Lymphoma, Adult T-Cell/genetics ; Leukemia-Lymphoma, Adult T-Cell/therapy ; Receptors, Antigen, T-Cell/genetics ; Gene Expression ; Gene Products, tax/genetics ; HTLV-I Infections/genetics ; HTLV-I Infections/pathology
    Chemical Substances Receptors, Antigen, T-Cell ; Gene Products, tax
    Language English
    Publishing date 2023-06-15
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80077-6
    ISSN 1365-2141 ; 0007-1048
    ISSN (online) 1365-2141
    ISSN 0007-1048
    DOI 10.1111/bjh.18918
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  7. Article ; Online: Impact of anti-thymocyte globulin on survival outcomes in female-to-male allogeneic hematopoietic stem cell transplantation.

    Tamaki, Masaharu / Akahoshi, Yu / Ashizawa, Masahiro / Misaki, Yukiko / Koi, Satoshi / Kim, Sung-Won / Ozawa, Yukiyasu / Fujiwara, Shin-Ichiro / Kako, Shinichi / Matsuoka, Ken-Ichi / Sawa, Masashi / Katayama, Yuta / Onizuka, Makoto / Kanda, Yoshinobu / Fukuda, Takahiro / Atsuta, Yoshiko / Yakushijin, Kimikazu / Nakasone, Hideki

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 7166

    Abstract: Allogeneic hematopoietic cell transplantation between female donors and male recipients (female-to-male allo-HCT) is a well-established risk factor for inferior survival outcomes due to a higher incidence of graft-versus-host disease (GVHD). However, a ... ...

    Abstract Allogeneic hematopoietic cell transplantation between female donors and male recipients (female-to-male allo-HCT) is a well-established risk factor for inferior survival outcomes due to a higher incidence of graft-versus-host disease (GVHD). However, a clinical significance of anti-thymocyte globulin (ATG) in the female-to-male allo-HCT has not been elucidated. In this study, we retrospectively evaluated male patients who underwent allo-HCT between 2012 and 2019 in Japan. In the female-to-male allo-HCT cohort (n = 828), the use of ATG was not associated with a decreased risk of GVHD (HR of acute GVHD 0.691 [95% CI: 0.461-1.04], P = 0.074; HR of chronic GVHD 1.06 [95% CI: 0.738-1.52], P = 0.76), but was associated with favorable overall survival (OS) and a decreased risk of non-relapse mortality (NRM) (HR of OS 0.603 [95% CI: 0.400-0.909], P = 0.016; HR of NRM 0.506 [95% CI: 0.300-0.856], P = 0.011). The use of ATG in female-to-male allo-HCT resulted in survival outcomes that were almost equivalent to those in the male-to-male allo-HCT group. Therefore, GVHD prophylaxis with ATG might overcome the inferiority of survival outcomes in female-to-male allo-HCT.
    MeSH term(s) Humans ; Male ; Female ; Antilymphocyte Serum/therapeutic use ; Retrospective Studies ; Hematopoietic Stem Cell Transplantation/methods ; Graft vs Host Disease/etiology ; Tissue Donors ; Transplantation Conditioning/methods
    Chemical Substances Antilymphocyte Serum
    Language English
    Publishing date 2023-05-03
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-34442-y
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  8. Article ; Online: Plasma ubiquitin C-terminal hydrolase-L1 (UCH-L1) level as a blood biomarker of neurological damage after allogeneic hematopoietic cell transplantation.

    Okada, Yosuke / Nakasone, Hideki / Yoshimura, Kazuki / Tamaki, Masaharu / Kusuda, Machiko / Nakamura, Yuhei / Kawamura, Masakatsu / Kawamura, Shunto / Takeshita, Junko / Yoshino, Nozomu / Misaki, Yukiko / Gomyo, Ayumi / Tanihara, Aki / Kimura, Shun-Ichi / Kako, Shinichi / Kanda, Yoshinobu

    International journal of hematology

    2023  Volume 118, Issue 3, Page(s) 340–346

    Abstract: Several biofluid-based biomarkers for traumatic brain injury show promise for use in diagnosis and outcome prediction. In contrast, few studies have investigated biomarkers for non-traumatic brain injury. We focused on ubiquitin C-terminal hydrolase-L1 ( ... ...

    Abstract Several biofluid-based biomarkers for traumatic brain injury show promise for use in diagnosis and outcome prediction. In contrast, few studies have investigated biomarkers for non-traumatic brain injury. We focused on ubiquitin C-terminal hydrolase-L1 (UCH-L1), which has been proposed as a screening tool for traumatic brain injury, and investigated whether the plasma UCH-L1 level could also be a useful biomarker in patients with non-traumatic brain injury. We measured UCH-L1 in 25 patients who had experienced neurological complications after allogeneic hematopoietic cell transplantation (HCT) and 22 control patients without any complications or graft-versus-host disease. Although UCH-L1 levels before HCT did not differ significantly (P = 0.053), levels after HCT were higher in patients with neurological complications compared with the control group (P < 0.001). At a UCH-L1 cutoff value of 0.072 ng/ml, sensitivity was 68.0% and specificity was 100%. The statistical power of UCH-L1 for neurological complications seemed to be higher than that of CT and comparable to that of MRI. Thus, increased levels of UCH-L1 might reflect the presence of neurological damage even in patients with non-traumatic brain injury. Further large cohort investigations are warranted.
    MeSH term(s) Humans ; Brain Injuries/diagnosis ; Ubiquitin Thiolesterase ; Biomarkers ; Prognosis ; Hematopoietic Stem Cell Transplantation/adverse effects
    Chemical Substances Ubiquitin Thiolesterase (EC 3.4.19.12) ; Biomarkers
    Language English
    Publishing date 2023-07-22
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 1076875-0
    ISSN 1865-3774 ; 0917-1258 ; 0925-5710
    ISSN (online) 1865-3774
    ISSN 0917-1258 ; 0925-5710
    DOI 10.1007/s12185-023-03642-7
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  9. Article ; Online: Evaluation of the mechanical properties and biocompatibility of gypsum-containing calcium silicate cements.

    Hayashi, Yumiyo / Kawaki, Harumi / Hori, Masaharu / Shintani, Kohei / Hasegawa, Tomoya / Tanaka, Masashi / Kondoh, Nobuo / Yoshida, Takakazu / Kawano, Satoshi / Tamaki, Yukimichi

    Dental materials journal

    2021  Volume 40, Issue 4, Page(s) 863–869

    Abstract: Mineral trioxide aggregate (MTA) cement is widely used in the field of endodontic treatment. We herein synthesized calcium silicates from calcium carbonate and silicon dioxide, with the aim of reducing the cost associated with the MTA. Additionally, we ... ...

    Abstract Mineral trioxide aggregate (MTA) cement is widely used in the field of endodontic treatment. We herein synthesized calcium silicates from calcium carbonate and silicon dioxide, with the aim of reducing the cost associated with the MTA. Additionally, we prepared gypsum-containing calcium silicate cement to reduce the setting time while enhancing the mechanical strength. We evaluated the physical properties of this cement and investigated the response of human dental pulp stem cells (hDPSCs) grown in culture media containing cement eluate. Our results revealed that calcium silicates could be easily synthesized in lab-scale. Furthermore, we demonstrate that gypsum addition helps shorten the setting time while increasing the compressive strength of dental cements. The synthesized gypsum-containing calcium silicate cement showed minimal cytotoxicity and did not inhibit the proliferation of hDPSCs. These results suggested that the newly developed calcium silicate material could be a promising pulp capping material.
    MeSH term(s) Aluminum Compounds ; Calcium ; Calcium Compounds ; Calcium Sulfate ; Dental Cements ; Drug Combinations ; Humans ; Materials Testing ; Oxides ; Silicate Cement ; Silicates
    Chemical Substances Aluminum Compounds ; Calcium Compounds ; Dental Cements ; Drug Combinations ; Oxides ; Silicates ; Silicate Cement (1327-39-5) ; calcium silicate (S4255P4G5M) ; Calcium (SY7Q814VUP) ; Calcium Sulfate (WAT0DDB505)
    Language English
    Publishing date 2021-02-27
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 605650-7
    ISSN 1881-1361 ; 0287-4547
    ISSN (online) 1881-1361
    ISSN 0287-4547
    DOI 10.4012/dmj.2020-086
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  10. Article ; Online: Unrelated female-to-male bone marrow transplantation would be preferred over cord blood transplantation in male patients.

    Tamaki, Masaharu / Akahoshi, Yu / Okada, Yosuke / Uchida, Naoyuki / Tanaka, Masatsugu / Doki, Noriko / Sawa, Masashi / Maruyama, Yumiko / Ueda, Yasunori / Miyakoshi, Shigesaburo / Katayama, Yuta / Kawakita, Toshiro / Kimura, Takafumi / Onizuka, Makoto / Fukuda, Takahiro / Atsuta, Yoshiko / Yanagisawa, Ryu / Yakushijin, Kimikazu / Kanda, Junya /
    Nakasone, Hideki

    Cytotherapy

    2023  Volume 25, Issue 11, Page(s) 1220–1228

    Abstract: Background aims: Allogeneic hematopoietic stem cell transplantation from female donors to male recipients (female-to-male allo-HCT) is a well-established risk factor for a greater incidence of non-relapse mortality (NRM) and chronic graft-versus-host ... ...

    Abstract Background aims: Allogeneic hematopoietic stem cell transplantation from female donors to male recipients (female-to-male allo-HCT) is a well-established risk factor for a greater incidence of non-relapse mortality (NRM) and chronic graft-versus-host disease (GVHD). In contrast, unrelated cord blood transplantation (UCBT) is associated with a lower incidence of chronic GVHD. In this study, survival outcomes were compared between the UCBT and unrelated female-to-male bone marrow transplantation (UFMBMT) groups.
    Methods: We evaluated male allo-HCT recipients who underwent UCBT or UFMBMT between 2012 and 2020 in Japan. There were 2517 cases in the UCBT group, 456 cases in the HLA-matched UFMBMT group and 457 cases in the HLA-mismatched UFMBMT group.
    Results: HLA-mismatched UFMBMT was significantly associated with a decreased risk of relapse (hazard ratio [HR] 0.74; 95% confidence interval [CI] 0.57-0.98], P = 0.033) and HLA-matched UFMBMT had the tendency of a decreased risk of relapse (HR 0.78; 95% CI 0.61-1.01, P = 0.059). HLA-matched UFMBMT was also associated with favorable OS (HR 0.82; 95% CI 0.69-0.97, P = 0.021). The relationship between the donor sources and relapse was similarly observed in the lymphoid malignancy cohort.
    Conclusions: The difference of graft-versus leukemia effect by H-Y immunity according to donor sources might contribute to the difference in clinical impact. It might be desirable for patients who could sufficiently wait for donor coordination to select BMT rather than UCBT, even if only unrelated female donors are available for male recipients.
    MeSH term(s) Humans ; Male ; Female ; Bone Marrow Transplantation/adverse effects ; Cord Blood Stem Cell Transplantation/adverse effects ; Hematopoietic Stem Cell Transplantation/adverse effects ; Unrelated Donors ; Recurrence ; Chronic Disease ; Graft vs Host Disease/etiology ; Graft vs Host Disease/prevention & control ; Retrospective Studies
    Language English
    Publishing date 2023-06-20
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2039821-9
    ISSN 1477-2566 ; 1465-3249
    ISSN (online) 1477-2566
    ISSN 1465-3249
    DOI 10.1016/j.jcyt.2023.06.002
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