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Yamagishi M, Kuze Y, Kobayashi S, Nakashima M, Morishima S, Kawamata T, Makiyama J, Suzuki K, Seki M, Abe K, Imamura K, Watanabe E, Tsuchiya K, Yasumatsu I, Takayama G, Hizukuri Y, Ito K, Taira Y, Nannya Y, Tojo A, Watanabe T, Tsutsumi S, Suzuki Y, Uchimaru K. Mechanisms of action and resistance in histone methylation-targeted therapy. Nature 2024; 627:221-228. [PMID: 38383791 PMCID: PMC10917674 DOI: 10.1038/s41586-024-07103-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 01/23/2024] [Indexed: 02/23/2024]
Abstract
Epigenomes enable the rectification of disordered cancer gene expression, thereby providing new targets for pharmacological interventions. The clinical utility of targeting histone H3 lysine trimethylation (H3K27me3) as an epigenetic hallmark has been demonstrated1-7. However, in actual therapeutic settings, the mechanism by which H3K27me3-targeting therapies exert their effects and the response of tumour cells remain unclear. Here we show the potency and mechanisms of action and resistance of the EZH1-EZH2 dual inhibitor valemetostat in clinical trials of patients with adult T cell leukaemia/lymphoma. Administration of valemetostat reduced tumour size and demonstrated durable clinical response in aggressive lymphomas with multiple genetic mutations. Integrative single-cell analyses showed that valemetostat abolishes the highly condensed chromatin structure formed by the plastic H3K27me3 and neutralizes multiple gene loci, including tumour suppressor genes. Nevertheless, subsequent long-term treatment encounters the emergence of resistant clones with reconstructed aggregate chromatin that closely resemble the pre-dose state. Acquired mutations at the PRC2-compound interface result in the propagation of clones with increased H3K27me3 expression. In patients free of PRC2 mutations, TET2 mutation or elevated DNMT3A expression causes similar chromatin recondensation through de novo DNA methylation in the H3K27me3-associated regions. We identified subpopulations with distinct metabolic and gene translation characteristics implicated in primary susceptibility until the acquisition of the heritable (epi)mutations. Targeting epigenetic drivers and chromatin homeostasis may provide opportunities for further sustained epigenetic cancer therapies.
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Affiliation(s)
- Makoto Yamagishi
- Laboratory of Viral Oncology and Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan.
- Laboratory of Tumor Cell Biology, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan.
| | - Yuta Kuze
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Seiichiro Kobayashi
- Division of Hematopoietic Disease Control, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Department of Hematology, Kanto Rosai Hospital, Kanagawa, Japan
| | - Makoto Nakashima
- Laboratory of Tumor Cell Biology, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Satoko Morishima
- Division of Endocrinology, Diabetes and Metabolism, Hematology and Rheumatology, Second Department of Internal Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Toyotaka Kawamata
- Department of Hematology/Oncology, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Junya Makiyama
- Department of Hematology/Oncology, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Department of Hematology, Sasebo City General Hospital, Nagasaki, Japan
| | - Kako Suzuki
- Laboratory of Viral Oncology and Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
- Laboratory of Tumor Cell Biology, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Masahide Seki
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazumi Abe
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Kiyomi Imamura
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Eri Watanabe
- IMSUT Clinical Flow Cytometry Laboratory, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Kazumi Tsuchiya
- IMSUT Clinical Flow Cytometry Laboratory, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Isao Yasumatsu
- Organic and Biomolecular Chemistry Department, Daiichi Sankyo RD Novare, Tokyo, Japan
| | | | | | - Kazumi Ito
- Translational Science I, Daiichi Sankyo, Tokyo, Japan
| | - Yukihiro Taira
- Laboratory of Viral Oncology and Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Yasuhito Nannya
- Division of Hematopoietic Disease Control, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Department of Hematology/Oncology, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Arinobu Tojo
- Tokyo Medical and Dental University, Tokyo, Japan
| | - Toshiki Watanabe
- Department of Practical Management of Medical Information, Graduate School of Medicine, St Marianna University, Kanagawa, Japan
| | | | - Yutaka Suzuki
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan.
| | - Kaoru Uchimaru
- Laboratory of Tumor Cell Biology, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan.
- Department of Hematology/Oncology, IMSUT Hospital, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
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Tsuchiya K, Taylor HO, Bacong AM, Niño MD. Loneliness and Psychological Distress Among Older Californians: The Moderating Roles of Citizenship Status and English Proficiency. J Gerontol B Psychol Sci Soc Sci 2024; 79:gbad074. [PMID: 37195426 PMCID: PMC10873521 DOI: 10.1093/geronb/gbad074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Indexed: 05/18/2023] Open
Abstract
OBJECTIVES Guided by the theory of stress proliferation, our study examined whether loneliness, citizenship status, and English proficiency were associated with psychological distress among older adults, and if citizenship status and English proficiency moderated these relationships. METHODS Using the older adult subsample (65+ years) of the 2019-2020 California Health Interview Survey (N = 15,210), we assessed cross-sectional associations between loneliness, citizenship status, and English proficiency on psychological distress by conducting multivariable linear regression models. Interaction terms were included in subsequent models to determine if citizenship status and English proficiency moderated the relationship between loneliness and psychological distress. RESULTS In unadjusted models, greater loneliness was associated with higher distress. Both naturalized citizens and noncitizens, and those with limited English proficiency (LEP) exhibited greater distress than US born citizens and those who speak English only (EO). After adjusting for sociodemographic and health covariables, loneliness remained significant for distress although the relationships between citizenship status and English proficiency became attenuated. With the inclusion of interactions, the magnitude of the relationship between loneliness and distress was stronger for naturalized citizens and those with LEP than native-born citizens and those who speak EO, respectively. DISCUSSION Loneliness was the most consistent stressor affecting multiple life domains. However, our findings demonstrate that stress proliferation is occurring among older immigrant adults and the interplay between loneliness, citizenship status, and English proficiency is contributing to heightened distress. Further attention is needed in understanding the role of multiple stressors influencing mental health among immigrant older adults.
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Affiliation(s)
- Kazumi Tsuchiya
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Harry Owen Taylor
- Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, Ontario, Canada
| | - Adrian Matias Bacong
- Center for Asian Health Research and Education, Stanford University, Stanford, California, USA
| | - Michael David Niño
- Department of Sociology and Criminology, University of Arkansas, Fayetteville, Arizona, USA
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Taylor HO, Taylor RJ, Tsuchiya K, Chatters L. Social Isolation, Self-Rated Health, and Self-Rated Oral Health among African Americans. J Health Care Poor Underserved 2024; 35:18-36. [PMID: 38661857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Social isolation is associated with worse health; however, few studies have examined the health effects of isolation among African Americans. The purpose of this study is to evaluate associations between social isolation and self-rated physical and oral health from the National Survey of American Life, a nationally representative sample of African Americans. Social isolation was operationalized to reflect both objective isolation (lack of contact) and subjective isolation (lack of emotional closeness). Self-rated physical and oral health were regressed on objective and subjective isolation while controlling for marital status, gender, age, family income, education, and health behaviors. Poorer self-rated physical health was associated with objective isolation, while poorer self-rated oral health was associated with subjective isolation. This study contributes to the small literature of the impact of social isolation on health among African Americans; furthermore, it is the first to examine the relationship between isolation and self-rated oral health in this population.
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Niño M, Harris CT, Tsuchiya K, Hearne B. Paternal Incarceration, Race and Ethnicity, and Maternal Health. J Racial Ethn Health Disparities 2023; 10:2081-2092. [PMID: 35969324 PMCID: PMC10440804 DOI: 10.1007/s40615-022-01388-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Although increased attention has been placed on the potential deleterious consequences of paternal incarceration on maternal health, little empirical research has attempted to understand the physiological processes that might underlie this relationship. Moreover, exposure to incarceration and access to resources that shape family incarceration patterns are unequally distributed across racial and ethnic lines, yet few studies utilize analytic frameworks that account for this social reality. Using a within race/ethnicity analytic framework, the present study addresses these gaps by examining relationships between paternal incarceration and telomere length for Black, Latina/o, and White mothers. METHODS Data were drawn from the Fragile Families and Child Wellbeing Study, a longitudinal, stratified multistage probability sample of couples and children in 20 large U.S. cities. The final analytic sample consisted of 2174 mothers that were followed from pregnancy to age 9 of the focal child. RESULTS Findings revealed exposure to paternal incarceration was negatively associated with telomere length for Black mothers, but not for Latina/o and White mothers. Mediation analysis also showed paternal incarceration-telomere length relationships did not operate through secondary stressors, such as economic instability, poor mental health, and parenting stress. CONCLUSION Overall, results demonstrated that the detrimental physiological consequences of paternal incarceration for mothers depended on racial and ethnic background. Findings from this study can provide a foundation upon which health scholars and criminal justice stakeholders may better understand whether and how paternal incarceration shapes deleterious health patterns for the mothers who remain to care for the children of those incarcerated.
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Affiliation(s)
- Michael Niño
- Department of Sociology and Criminology, University of Arkansas, Fayetteville, AR, 72701, USA.
| | - Casey T Harris
- Department of Sociology and Criminology, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Kazumi Tsuchiya
- Dalla Lana Social of Public Health, University of Toronto, 27 Kings College Circle, Toronto, ON, M5S 1A1, Canada
| | - Brittany Hearne
- Department of Sociology and Criminology, University of Arkansas, Fayetteville, AR, 72701, USA
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Tsuchiya K, Schulz AJ, Niño MD, Caldwell CH. Perceived Racial/Ethnic Discrimination, Citizenship Status, and Self-Rated Health Among Immigrant Young Adults. J Racial Ethn Health Disparities 2023:10.1007/s40615-023-01731-1. [PMID: 37566180 DOI: 10.1007/s40615-023-01731-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/18/2023] [Accepted: 07/21/2023] [Indexed: 08/12/2023]
Abstract
Both racial/ethnic discrimination and citizenship status are manifestations of racism. Few empirical studies have examined the role of multiple stressors and how both stressors are interlinked to influence health among immigrant young adults. Informed by the theory of stress proliferation, the current study seeks to examine the interplay between perceived racial/ethnic discrimination and citizenship status on health. We used the third wave of the Children of Immigrants Longitudinal Study (CILS) to examine the influence of perceived racial/ethnic discrimination and citizenship status on self-rated health (SRH) among immigrant young adults (N = 3344). Perceived racial/ethnic discrimination was initially associated with SRH. After adjusting for both predictors, those experiencing perceived racial/ethnic discrimination and non-citizen youth were less likely to report better health than youth who did not report perceived racial/ethnic discrimination or citizen youth. In fully adjusted multivariate regression models, racial/ethnic discrimination remained significant, while citizenship status was no longer associated with SRH. To test stress proliferation, an interaction term was included to assess whether the relationship between perceived racial/ethnic discrimination and SRH varied by citizenship status. The interaction term was significant; non-citizen young adults who experienced racial/ethnic discrimination were less likely to report better health in comparison to citizen young adults and those who did not report perceived racial/ethnic discrimination. Results suggest that the interplay between perceived racial/ethnic discrimination and citizenship status may be influential for health among immigrant young adults. These findings underscore the need for further assessment of the role of stress proliferation on immigrant young adults' health.
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Affiliation(s)
- Kazumi Tsuchiya
- Social and Behavioural Health Sciences Division, Dalla Lana School of Public Health, University of Toronto, 155 College St, Toronto, Ontario, M5T 3M7, Canada.
| | - Amy Jo Schulz
- Department of Health Behavior and Health Education, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109-2029, USA
| | - Michael David Niño
- Department of Sociology and Criminology, 1 University of Arkansas, Fayetteville, AR, 72701, USA
| | - Cleopatra Howard Caldwell
- Department of Health Behavior and Health Education, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109-2029, USA
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Niño M, Tsuchiya K, Thomas S, Vazquez C. The co-occurrence of adverse childhood experiences and mental health among Latina/o adults: A latent class analysis approach. Prev Med Rep 2023; 33:102185. [DOI: 10.1016/j.pmedr.2023.102185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/03/2023] [Accepted: 03/24/2023] [Indexed: 04/01/2023] Open
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Levesque C, DeWaard J, Chan L, McKenzie MG, Tsuchiya K, Toles O, Lange A, Horner K, Ryu E, Boyle EH. Crimmigrating Narratives: Examining Third-Party Observations of US Detained Immigration Court. Law Soc Inq 2023; 48:407-436. [PMID: 38130898 PMCID: PMC10732548 DOI: 10.1017/lsi.2022.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Examining what we call "crimmigrating narratives," we show that US immigration court criminalizes non-citizens, cements forms of social control, and dispenses punishment in a non-punitive legal setting. Building on theories of crimmigration and a sociology of narrative, we code, categorize, and describe third-party observations of detained immigration court hearings conducted in Fort Snelling, Minnesota, from July 2018 to June 2019. We identify and investigate structural factors of three key crimmigrating narratives in the courtroom: one based on threats (stories of the non-citizen's criminal history and perceived danger to society), a second involving deservingness (stories of the non-citizen's social ties, hardship, and belonging in the United States), and a third pertaining to their status as "impossible subjects" (stories rendering non-citizens "illegal," categorically excludable, and contradictory to the law). Findings demonstrate that the courts' prioritization of these three narratives disconnects detainees from their own socially organized experience and prevents them from fully engaging in the immigration court process. In closing, we discuss the potential implications of crimmigrating narratives for the US immigration legal system and non-citizen status.
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Affiliation(s)
- Christopher Levesque
- University of Minnesota
- James H. Binger Center for New Americans at the University of Minnesota Law School
- Minnesota Population Center
| | - Jack DeWaard
- Department of Sociology and Graduate Faculty, Minnesota Population Center, University of Minnesota
- Hubert H. Humphrey School of Public Affairs, Institute on the Environment and the Life Course Center
| | - Linus Chan
- University of Minnesota
- Detainee Rights Clinic, University of Minnesota
| | | | - Kazumi Tsuchiya
- Dalla Lana School of Public Health in the Social and Behavioural Sciences Division, University of Toronto
| | | | | | | | - Eric Ryu
- University of Minnesota - Twin Cities
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Tsutsui T, Fujiwara T, Matsumoto Y, Kimura A, Kanahori M, Arisumi S, Oyamada A, Ohishi M, Ikuta K, Tsuchiya K, Tayama N, Tomari S, Miyahara H, Mae T, Hara T, Saito T, Arizono T, Kaji K, Mawatari T, Fujiwara M, Takasaki M, Shin K, Ninomiya K, Nakaie K, Antoku Y, Iwamoto Y, Nakashima Y. Geriatric nutritional risk index as the prognostic factor in older patients with fragility hip fractures. Osteoporos Int 2023:10.1007/s00198-023-06753-3. [PMID: 37067545 DOI: 10.1007/s00198-023-06753-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 04/06/2023] [Indexed: 04/18/2023]
Abstract
This study investigated the long-term survival and incidence of secondary fractures after fragility hip fractures. The 5-year survival rate was 62%, and the mortality risk was seen in patients with GNRI < 92. The 5-year incidence of secondary fracture was 22%, which was significantly higher in patients with a BMI < 20. BACKGROUND Malnutrition negatively influences the postoperative survival of patients with fragility hip fractures (FHFs); however, little is known about their association over the long term. OBJECTIVE This study evaluated the ability of the geriatric nutritional risk index (GNRI) as a risk factor for long-term mortality after FHFs. METHODS This study included 623 Japanese patients with FHFs over the age of 60 years. We prospectively collected data on admission and during hospitalization and assessed the patients' conditions after discharge through a questionnaire. We examined the long-term mortality and the incidence of secondary FHFs and assessed the prognostic factors. RESULTS The mean observation period was 4.0 years (range 0-7 years). The average age at the time of admission was 82 years (range 60-101 years). The overall survival after FHFs (1 year, 91%; 5 years, 62%) and the incidence of secondary FHFs were high (1 year, 4%; 5 years, 22%). The multivariate Cox proportional hazard analysis revealed the risk factors for mortality as older age (hazard ratio [HR] 1.04), male sex (HR 1.96), lower GNRI score (HR 0.96), comorbidities (malignancy, HR 2.51; ischemic heart disease, HR 2.24; revised Hasegawa dementia scale ≤ 20, HR 1.64), no use of active vitamin D3 on admission (HR 0.46), and a lower Barthel index (BI) (on admission, HR 1.00; at discharge, HR 0.99). The GNRI scores were divided into four risk categories: major risk (GNRI, < 82), moderate risk (82-91), low risk (92-98), and no risk (> 98). Patients at major and moderate risks of GNRI had a significantly lower overall survival rate (p < 0.001). Lower body mass index (BMI) was also identified as a prognostic factor for secondary FHFs (HR 0.88 [p = 0.004]). CONCLUSIONS We showed that older age, male sex, a lower GNRI score, comorbidities, and a lower BI are risk factors for mortality following FHFs. GNRI is a novel and simple predictor of long-term survival after FHFs.
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Affiliation(s)
- T Tsutsui
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - T Fujiwara
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Y Matsumoto
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - A Kimura
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - M Kanahori
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - S Arisumi
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - A Oyamada
- Department of Orthopaedic Surgery, Saga Handicapped Children's Hospital, Saga, Japan
| | - M Ohishi
- Department of Orthopaedic Surgery, Chihaya Hospital, Fukuoka, Japan
| | - K Ikuta
- Department of Orthopaedic Surgery, Karatsu Red Cross Hospital, Saga, Japan
| | - K Tsuchiya
- Department of Orthopaedic Surgery, Japan Community Healthcare Organization, Kyushu Hospital, Fukuoka, Japan
| | - N Tayama
- Department of Orthopaedic Surgery, Steel Memorial Yawata Hospital, Fukuoka, Japan
| | - S Tomari
- Department of Orthopaedic Surgery, Japanese Red Cross Fukuoka Hospital, Fukuoka, Japan
| | - H Miyahara
- Department of Orthopaedic Surgery, National Hospital Organization Kyushu Medical Centre, Fukuoka, Japan
| | - T Mae
- Department of Orthopaedic Surgery, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - T Hara
- Department of Orthopaedic Surgery, Aso Iizuka Hospital, Fukuoka, Japan
| | - T Saito
- Department of Orthopaedic Surgery, Fukuoka City Hospital, Fukuoka, Japan
| | - T Arizono
- Department of Orthopaedic Surgery, Kyushu Central Hospital of the Mutual Aid Association of Public School Teachers, Fukuoka, Japan
| | - K Kaji
- Department of Orthopaedic Surgery, Kyushu Rosai Hospital, Fukuoka, Japan
| | - T Mawatari
- Department of Orthopaedic Surgery, Hamanomachi Hospital, Fukuoka, Japan
| | - M Fujiwara
- Department of Orthopaedic Surgery, Sada Hospital, Fukuoka, Japan
| | - M Takasaki
- Department of Orthopaedic Surgery, Harasanshin Hospital, Fukuoka, Japan
| | - K Shin
- Department of Orthopaedic Surgery, Saiseikai Yahata General Hospital, Fukuoka, Japan
| | - K Ninomiya
- Department of Orthopaedic Surgery, Koga Hospital 21, Fukuoka, Japan
| | - K Nakaie
- Department of Orthopaedic Surgery, National Hospital Organization Fukuoka-Higashi Medical Centre, Fukuoka, Japan
| | - Y Antoku
- Faculty of Medicine, Hospital Informatic Centre, Oita University, Oita, Japan
| | - Y Iwamoto
- Department of Orthopaedic Surgery, Kyushu Rosai Hospital, Fukuoka, Japan
| | - Y Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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Taylor HO, Tsuchiya K, Nguyen AW, Mueller C. Sociodemographic Factors and Neighborhood/Environmental Conditions Associated with Social Isolation Among Black Older Adults. J Aging Health 2023; 35:294-306. [PMID: 36148575 PMCID: PMC9896535 DOI: 10.1177/08982643221118427] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Objectives: To investigate sociodemographic factors and neighborhood/environmental conditions associated with social isolation (SI) among Black older adults. Methods: We utilized data from the 2014 and 2016 Leave-Behind Questionnaire from the Health and Retirement Study (HRS LBQ) among those who self-identified as Black (N = 2.323). Outcome variables for our study included SI from adult children, other family members, friends, disengagement from social participation and religious services, being unmarried, and living alone. These indicators were also combined into an overall SI index. Critical predictors included gender, age, household income, education, employment status, neighborhood cohesion, neighborhood disorder, urbanicity, and region of residence. Results: Sociodemographic factors of gender, education and household income were significantly associated with SI indicators. Additionally, some neighborhood/environmental conditions were associated with SI indicators. Discussion: SI was found to be patterned by sociodemographic factors. These results can be used to develop effective interventions to mitigate SI among Black older adults.
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Affiliation(s)
- Harry O. Taylor
- University of
Toronto, Toronto, ON, Canada,Harry O. Taylor, Factor-Inwentash Faculty
of Social Work, University of Toronto, 246 Bloor Street West, Toronto, ON
M5S1V4, Canada.
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Tsuchiya K, Bacong AM, de Castro AB, Gee GC. Visa type and financial strain on depressive symptoms among Filipino migrants to the United States. J Migr Health 2023; 7:100155. [PMID: 36755688 PMCID: PMC9900610 DOI: 10.1016/j.jmh.2023.100155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 10/15/2022] [Accepted: 01/22/2023] [Indexed: 01/24/2023] Open
Abstract
Migrants have been theorized to be healthier than their non-migrant counterparts; however, there is limited examination of health selection using binational data and how selection occurs, particularly for mental health outcomes. This study examines the role of visa status and financial strain as critical factors for mental health selection among Filipino migrants to the U.S. and non-migrants who remain in the Philippines. We used the baseline data from the Health of Philippine Emigrants Study (HoPES; n = 1631) to compare depressive symptoms between non-migrants and migrants who were both surveyed prior to their departure to the U.S. We assessed depressive symptoms using linear regression by migration status, financial strain, and by visa categories including fiancée/marriage, unlimited family reunification, limited family reunification, and employment. Overall, all migrants reported lower depressive symptoms than non-migrants; however, depressive symptoms varied by visa type. Fiancée/marriage migrants had lower depressive symptoms than compared to limited family reunification migrants. Additionally, those who reported financial strain had higher depressive symptoms than those without any financial strain. We find that migrants were positively selected for mental health using a unique sample of Filipino migrants before they left for the U.S.
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Affiliation(s)
- Kazumi Tsuchiya
- Dalla Lana School of Public Health, University of Toronto, 155 College Street, Toronto, ON M5T 3M7, United States
| | - Adrian M. Bacong
- Center for Asian Health Research and Education, Stanford University, 291 Campus Drive, Stanford, CA 94305, United States
| | - A B de Castro
- School of Nursing, University of Washington, 1959 NE Pacific Street, Seattle, WA 98195, United States
| | - Gilbert C. Gee
- Department of Community Health Sciences, Fielding School of Public Health, University of California, 650 Charles E Young Dr S, Los Angeles, CA 90095, United States
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Inada M, Nishimura Y, Ishikura S, Ishikawa K, Murakami N, Kodaira T, Ito Y, Tsuchiya K, Murakami Y, Saitoh J, Akimoto T, Nakata K, Yoshimura M, Teshima T, Toshiyasu T, Ota Y, Minemura T, Shimizu H, Hiraoka M. The Organs-at-Risk Dose Constraints in Head and Neck Intensity Modulated Radiation Therapy Using Data from a Multi-Institutional Clinical Trial (JCOG1015A1). Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Ikeda M, Yamashita T, Ogasawara S, Kudo M, Inaba Y, Morimoto M, Tsuchiya K, Shimizu S, Kojima Y, Hiraoka A, Nouso K, Aikata H, Numata K, Sato T, Okusaka T, Furuse J. 937P Multicenter phase II trial of lenvatinib plus hepatic intra-arterial infusion chemotherapy with cisplatin for advanced hepatocellular carcinoma: LEOPARD. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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13
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Prameela GKS, Phani Kumar BVN, Subramanian J, Tsuchiya K, Pan A, Aswal VK, Abe M, Mandal AB, Moulik SP. Interaction between sodium dodecylsulfate (SDS) and pluronic L61 in aqueous medium: assessment of the nature and morphology of the formed mixed aggregates by NMR, EPR, SANS and FF-TEM measurements. Phys Chem Chem Phys 2021; 23:13170-13180. [PMID: 34079976 DOI: 10.1039/d0cp06227h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction of copolymer L61 i.e., (EO)2(PO)32(EO)2 (where EO and PO are ethylene and propylene oxides, respectively) with surfactant SDS (sodium dodecylsulfate) in relation to their self-aggregation, dynamics and microstructures has been physicochemically studied in detail employing the Nuclear Magnetic Resonance (NMR), Electron Paramagnetic Resonance (EPR), Small-Angle Neutron Scattering (SANS), and Freeze-Fracture Transmission Electron Microscopy (FF-TEM) methods. The NMR self-diffusion study indicated a synergistic interaction between SDS and L61 forming L61-SDS mixed complex aggregates, and deuterium (2H) NMR pointed out the nonspherical nature of these aggregates with increasing [L61]. EPR spectral analysis of the motional parameters of 5-doxyl steraric acid (5-DSA) as a spin probe provided information on the microviscosity of the local environment of the L61-SDS complex aggregates. SANS probed the geometrical aspects of the SDS-L61 assemblies as a function of both [L61] and [SDS]. Progressive evolution of the mixed-aggregate geometries from globular to prolate ellipsoids with axial ratios ranging from 2 to 10 with increasing [L61] was found. Such morphological changes were further corroborated with the results of 2H NMR and FF-TEM measurements. The strategy of the measurements, and data analysis for a concerted conclusion have been presented.
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Affiliation(s)
- G K S Prameela
- Inorganic & Physical Chemistry Laboratory, CSIR - Central Leather Research Institute, Adyar, Chennai-600020, India.
| | - B V N Phani Kumar
- NMR, CATERS, CSIR - Central Leather Research Institute, Adyar, Chennai-600020, India
| | - J Subramanian
- Inorganic & Physical Chemistry Laboratory, CSIR - Central Leather Research Institute, Adyar, Chennai-600020, India.
| | - K Tsuchiya
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - A Pan
- Centre for Surface Science, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
| | - V K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - M Abe
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - A B Mandal
- Inorganic & Physical Chemistry Laboratory, CSIR - Central Leather Research Institute, Adyar, Chennai-600020, India.
| | - S P Moulik
- Centre for Surface Science, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
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14
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Tsuchiya K, Toles O, Levesque C, Horner K, Ryu E, Chan L, DeWaard J. Perceived structural vulnerabilities among detained noncitizen immigrants in Minnesota. PLoS One 2021; 16:e0252232. [PMID: 34106981 PMCID: PMC8189495 DOI: 10.1371/journal.pone.0252232] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/11/2021] [Indexed: 11/19/2022] Open
Abstract
Across several decades there has been an unprecedented increase in immigration enforcement including detention and deportation. Immigration detention profoundly impacts those experiencing detention and their family members. An emerging area of research has found that immigrants experience a number of challenges which constrain and limit their decisions, choices, and options for security and integration in the United States due to social, political and structural determinants. These determinants lead to greater structural vulnerabilities among immigrants. The purpose of the current study was to illuminate the perceived vulnerabilities of detained noncitizen immigrants as they are raised and described while attending case hearings at the Bloomington, Minnesota immigration court. Through conducting a thematic analysis of notes derived from third party immigration court observers, three areas of perceived vulnerability were identified. These perceived vulnerabilities include 1) migration and motivations to migrate, 2) structural vulnerabilities (e.g., discrimination, financial insecurity, social ties and family support, stable or fixed residence, English language proficiency, health and mental health) in the US, and 3) challenges in navigating immigration detention. These findings demonstrate that noncitizen immigrants who are undergoing immigration detention are experiencing multiple intersecting vulnerabilities which profoundly impact their lives. Collaborative efforts across sectors are needed to work towards comprehensive immigration reforms including both short-term and long-term solutions to address pressing issues for noncitizens undergoing immigration detention.
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Affiliation(s)
- Kazumi Tsuchiya
- Minnesota Population Center, University of Minnesota, Minneapolis, Minnesota, United States of America
- * E-mail:
| | - Olivia Toles
- College of Biological Sciences, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Christopher Levesque
- Minnesota Population Center, University of Minnesota, Minneapolis, Minnesota, United States of America
- Department of Sociology, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Kimberly Horner
- Humphrey School of Public Affairs, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Eric Ryu
- Humphrey School of Public Affairs, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Linus Chan
- University of Minnesota Law School, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Jack DeWaard
- Minnesota Population Center, University of Minnesota, Minneapolis, Minnesota, United States of America
- Department of Sociology, University of Minnesota, Minneapolis, Minnesota, United States of America
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15
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Ikeda I, Kuo PL, Tsuchiya K, Okahara M. Structural Effects of the Isomeric Hydrophilic Groups of Surfactants on their Properties. TENSIDE SURFACT DET 2021. [DOI: 10.1515/tsd-1984-210511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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Tsuchiya K, Demmer RT. Citizenship Status and Prevalence of Diagnosed and Undiagnosed Hypertension and Diabetes Among Adults in the U.S., 2011-2016. Diabetes Care 2021; 44:e38-e39. [PMID: 33472862 PMCID: PMC7896251 DOI: 10.2337/dc20-2453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 11/22/2020] [Indexed: 02/03/2023]
Affiliation(s)
- Kazumi Tsuchiya
- Minnesota Population Center, University of Minnesota, Minneapolis, MN
| | - Ryan T Demmer
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN
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17
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Okada T, Kako E, Konomi T, Masuzawa M, Sakai H, Tsuchiya K, Ueki R, Umemori K, Pizzol P, Poudel A, Tajima T. Systematic evaluation of magnetic sensitivities of anisotropic magnetoresistive sensors at liquid helium temperature for superconducting cavities. Rev Sci Instrum 2021; 92:035003. [PMID: 33820008 DOI: 10.1063/5.0038805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 02/28/2021] [Indexed: 06/12/2023]
Abstract
Trapped magnetic flux in bulk superconductors reduces the quality factor Q in superconducting radio-frequency (SRF) cavities. However, the mechanisms underlying flux trapping and radio-frequency loss are not well understood. Detailed observation of the magnetic distributions is important for understanding such phenomena. Magnetic field mapping is useful for observing the magnetic field distribution around SRF cavities. Measuring the change in the magnetic field around the cavity elucidates the flux trapping behavior. Anisotropic magnetoresistive (AMR) sensors are inexpensive and small devices that can detect magnetic flux density. The magnetic sensitivities of AMR sensors need to be evaluated at liquid helium temperature for the magnetic field mapping of SRF cavities. In this study, a test stand was constructed to calibrate the magnetic sensitivities of AMR sensors in liquid helium, and 110 AMR sensors were tested using this stand. The magnetic sensitivities were evaluated systematically. A solenoid coil was used to control the uniform external magnetic field and to measure the magnetic sensitivity at low temperatures. All AMR sensors exhibited suitable sensitivities to the magnetic field around the SRF cavity. The variation in these sensitivities in all AMR sensors was ∼1%. The AMR sensors were found to have sufficient sensitivity for mapping the magnetic field around the exterior surface of the SRF cavity.
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Affiliation(s)
- T Okada
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - E Kako
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - T Konomi
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - M Masuzawa
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - H Sakai
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - K Tsuchiya
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - R Ueki
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - K Umemori
- SOKENDAI, The Graduate University of Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - P Pizzol
- LANL, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A Poudel
- LANL, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - T Tajima
- LANL, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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18
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Marlina M, Lestari E, Abidin A, Hambali H, Saptiama I, Febriana S, Kadarisman K, Awaludin R, Tanase M, Nishikata K, Tsuchiya K. Molybdenum-99 (<sup>99</sup>Mo) Adsorption Profile of Zirconia-Based Materials for <sup>99</sup>Mo/<sup>99m</sup>Tc Generator Application. Atom Indo 2020. [DOI: 10.17146/aij.2020.914] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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19
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Tsuchiya K, Lee DB, Qian Y, Caldwell CH, Mincy RB. Risk and protective family factors during childhood on youth violence among African American males: The role of mothers and nonresident fathers. J Community Psychol 2020; 48:1543-1563. [PMID: 32222114 PMCID: PMC7316613 DOI: 10.1002/jcop.22346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 03/04/2020] [Accepted: 03/05/2020] [Indexed: 06/10/2023]
Abstract
African American male youth experience disproportionately higher levels of violence. We examined parental depression among African American mothers and nonresident fathers on parenting stress and school involvement in their adolescent sons' school connectedness and violent behaviors. Using a longitudinal study design, parent factors were assessed when sons were 9 years old on youth outcomes at age 15. We found that maternal depression was associated with maternal stress, and maternal stress was indirectly associated with sons' violent behaviors through school connectedness. School involvement among nonresident fathers was positively associated with sons' school connectedness, which was linked to less youth violent behaviors. Maternal stress and nonresident fathers' school involvement are influential for understanding youth violence. Future interventions should incorporate a more nuanced approach when including family factors.
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Affiliation(s)
- Kazumi Tsuchiya
- University of Minnesota, Minnesota Population Center, Minneapolis, Minnesota, 50 Willey Hall, 225 19 Avenue South, Minneapolis, MN 55455, USA
| | - Daniel B Lee
- University of Michigan, School of Public Health, Department of Health Behavior and Health Education, 1415 Washington Heights, Ann Arbor, MI, 48109, USA
| | - Yiqing Qian
- University of Michigan, School of Public Health, Department of Health Behavior and Health Education, 1415 Washington Heights, Ann Arbor, MI, 48109, USA
| | - Cleopatra H. Caldwell
- University of Michigan, School of Public Health, Department of Health Behavior and Health Education, 1415 Washington Heights, Ann Arbor, MI, 48109, USA
| | - Ronald B. Mincy
- Columbia University, Columbia School of Social Work, 1255 Amsterdam Avenue, New York, NY, 10027, USA
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20
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Abe T, Minami K, Harabayashi T, Sazawa A, Chiba H, Kikuchi H, Miyata H, Matsumoto R, Osawa T, Maruyama S, IshizakiIshizaki J, Mochizuki T, Chiba S, Akino T, Murakumo M, Miyajima N, Tsuchiya K, Murai S, Shinohara N. Erratum to: Outcome of maintenance systemic chemotherapy with drug-free interval for metastatic urothelial carcinoma. Jpn J Clin Oncol 2020; 50:726. [PMID: 32382760 PMCID: PMC7284546 DOI: 10.1093/jjco/hyz196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/15/2019] [Accepted: 05/21/2019] [Indexed: 11/21/2022] Open
Affiliation(s)
- T Abe
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - K Minami
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Harabayashi
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - A Sazawa
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Kikuchi
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - H Miyata
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - R Matsumoto
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - T Osawa
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - S Maruyama
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | | | - T Mochizuki
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Akino
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - M Murakumo
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - N Miyajima
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - K Tsuchiya
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Murai
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - N Shinohara
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
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21
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Affiliation(s)
- C C T Lim
- Department of NeuroradiologyNational Neuroscience InstituteDuke-NUS Graduate Medical SchoolSingapore
| | - K Tsuchiya
- Department of RadiologySaitama Medical Center, Saitama Medical UniversityKawagoe City, Saitama, Japan
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22
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Tsuchiya K, Leung CW, Jones AD, Caldwell CH. Multiple financial stressors and serious psychological distress among adults in the USA. Int J Public Health 2020; 65:335-344. [PMID: 32239257 DOI: 10.1007/s00038-020-01354-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 02/09/2020] [Accepted: 03/16/2020] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVES Financial stress has adverse consequences for health. However, the association between individual and cumulative associations of multiple financial stressors and serious psychological distress (SPD) is unclear. METHODS Using data from the 2017 National Health Interview Survey, we examined cross-sectional associations between perceived financial worries, healthcare insecurity, food insecurity, and SPD among 23,317 US adults. Associations were examined using logistic regression. RESULTS Among US adults in 2017, the overall prevalence of SPD was 3.6%. Among those with SPD, 85.5% were financially worried, 50.3% were food insecure, and 51.2% were healthcare insecure. Financial worries (OR 4.27; CI 3.31, 5.52), food insecurity (OR 2.34; CI 1.92, 2.85), and healthcare insecurity (OR 2.26; CI 1.85, 2.76) were each associated with higher odds of SPD. A dose-response association was found between the number of stressors and SPD. CONCLUSIONS Each financial stressor was adversely associated with SPD both individually and cumulatively, indicating the adverse effects of the accumulation of these stressors. Additional studies are needed to understand the longitudinal effects of multiple financial stressors on mental health outcomes.
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Affiliation(s)
- Kazumi Tsuchiya
- Minnesota Population Center, University of Minnesota, Minneapolis, MN, USA.
| | - Cindy W Leung
- Department of Nutritional Sciences, University of Michigan, School of Public Health, Ann Arbor, MI, USA
| | - Andrew D Jones
- Department of Nutritional Sciences, University of Michigan, School of Public Health, Ann Arbor, MI, USA
| | - Cleopatra H Caldwell
- Department of Health Behavior and Health Education, University of Michigan, School of Public Health, Ann Arbor, MI, USA
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23
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Abe T, Minami K, Harabayashi T, Sazawa A, Chiba H, Kikuchi H, Miyata H, Matsumoto R, Osawa T, Maruyama S, Ishizaki J, Mochizuki T, Chiba S, Akino T, Murakumo M, Miyajima N, Tsuchiya K, Murai S, Shinohara N. Outcome of maintenance systemic chemotherapy with drug-free interval for metastatic urothelial carcinoma. Jpn J Clin Oncol 2020; 49:965-971. [PMID: 31187865 PMCID: PMC6886465 DOI: 10.1093/jjco/hyz084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/15/2019] [Accepted: 05/21/2019] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE Aiming to achieve long-term disease control, maintenance systemic chemotherapy (MSC) with a 1-3-month drug-free interval is continued in selected patients. We report our experience of MSC for metastatic urothelial carcinoma (UC). METHODS Of 228 metastatic UC patients treated with systemic chemotherapy, 40 (17.5%, 40/228) had continuously undergone MSC. Data on the regimen, cycle number, and reason for the discontinuation of MSC were also collected. We analyzed OS from the initiation of MSC until death or the last follow-up, using the log-rank test to assess the significance of differences. RESULTS The median number of cycles of chemotherapy was 6, and the responses were CR in 6, PR in 20, SD in 13, and PD in 1 before MSC. Gemcitabine plus CDDP or carboplatin was mainly performed as MSC (70%, 28/40). MSC was repeated quarterly in 30 (75%, 30/40), every two months in 8 (20%, 8/40), and with other intervals in 2 (5%, 2/40). Overall, a median of 3.5 cycles (range: 1-29) of MSC was performed. The reason for the discontinuation of MSC was PD in 24 (60%, 24/40), favorable disease control in 9 (22.5%, 9/40), and myelosuppression in 3 (7.5%, 3/40), and for other reasons in 2 (5%, 2/40). MSC was ongoing in 2 (5%, 2/40). The median OS was 27 months from the initiation of MSC. PS0 (P = 0.0169), the absence of lung metastasis (P = 0.0387), and resection of the primary site (P = 0.0495) were associated with long-term survival after MSC. CONCLUSIONS In selected patients, long-term systemic chemotherapy could be performed with a drug-free interval. Our maintenance strategy with cytotoxic drugs may become one of the treatment options for long-term disease control.
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Affiliation(s)
- T Abe
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - K Minami
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Harabayashi
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - A Sazawa
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - H Kikuchi
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - H Miyata
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - R Matsumoto
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - T Osawa
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - S Maruyama
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - J Ishizaki
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Mochizuki
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Chiba
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - T Akino
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - M Murakumo
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - N Miyajima
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - K Tsuchiya
- Hokkaido Urothelial Cancer Research Group, Sapporo, Japan
| | - S Murai
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
| | - N Shinohara
- Department of Urology, Hokkaido University Hospital, Sapporo, Japan
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24
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Yoshimura K, Inoue Y, Tsuchiya K, Iwashita Y, Kahyo T, Kawase A, Tanahashi M, Suzuki Y, Karayama M, Ogawa H, Inui N, Funai K, Shinmura K, Niwa H, Suda T, Sugimura H. P2.03-43 WTAP Activates Oncogenes and Accelerates Tumor Aggressiveness Through Adding m6A RNA Modification in Non-Small-Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Ota H, Omori H, Tanigaki T, Okamoto S, Hirata T, Kikuchi J, Sobue Y, Miyake T, Kawamura I, Kawase Y, Okubo M, Kamiya H, Tsuchiya K, Matsuo H. 6108Efficacy of the PCSK9 inhibitor for lipid-rich coronary plaque reduction: a near-infrared spectroscopy analysis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Recently, some studies have highlighted proprotein convertase subtilisin-kexin type 9 (PCSK9) inhibitors produce incremental low-density lipoprotein cholesterol (LDL-C) lowering effect. However, it is unknown whether the lipid composition of plaque changes is associated with serum LDL-C reduction due to PCSK9 inhibitors administration.
Purpose
The purpose of this study was to determine the effects of PCSK9 inhibitor (PCSK9i) on coronary plaque component in patients with a history of coronary artery disease (CAD) assessed by near-infrared spectroscopy intravascular ultrasound (NIRS-IVUS).
Methods
A total of 67 non-culprit coronary segments were identified in 34 patients. These lesions were analyzed utilizing NIRS-IVUS at baseline and follow-up coronary angiography (CAG). The subjects were divided into two groups according to lipid-lowering treatment; administration of PCSK9i group (PCSK9i: 19 segments, 9 patients) and traditional statin treatment group (Control: 48 segments, 25 patients). The change of lipid-rich plaque distribution between baseline and follow-up NIRS-IVUS was defined as the change of maximal lipid core burden index (LCBI) score for each of the 4-mm longitudinal segments (maxLCBI4mm).
Results
Mean duration from baseline to follow-up CAG was 239.4±52.4 days in the PCSK9i group and 341.0±84.1 days in the Control group (p<0.001). Despite the higher total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) in the PCSK9i group at baseline (206.6±40.9 mg/dl vs. 168.5±37.1 mg/dl, 131.5±35.4 mg/dl vs. 100.0±29.5 mg/dl; respectively, p<0.001 for both), the PCSK9i group was significantly lower TC and LDL-C at the follow-up (111.5±23.5 mg/dl vs. 157.4±27.8 mg/dl, 40.8±15.7 mg/dl vs. 86.2±19.6 mg/dl; respectively, p<0.001 for both). Furthermore, the PCSK9i group induced greater regression of maxLCBI4mm than that of Control group (99.6±156.6 vs. 27.9±118.0, p=0.046) (Figure).
Figure 1
Conclusion
Compared with traditional statin therapy, PCSK9i treatment resulted in a greater decrease in lipid component in non-culprit coronary plaques. Therefore, PCSK9i may be useful option in preventing from adverse coronary events for the patients with CAD.
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Affiliation(s)
- H Ota
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - H Omori
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - T Tanigaki
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - S Okamoto
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - T Hirata
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - J Kikuchi
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - Y Sobue
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - T Miyake
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - I Kawamura
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - Y Kawase
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - M Okubo
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - H Kamiya
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - K Tsuchiya
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
| | - H Matsuo
- Gifu Heart Center, Department of Cardiology, Gifu, Japan
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Sakamoto A, Kurosaki M, Tsuchiya K, Abe T, Ogawa C, Soda T, Kimura H, Kondo M, Tsuji K, Koichiro F, Shigeno M, Jyoko K, Narita R, Uchida Y, Yoshida H, Akahane T, Kobashi H, Mitsuda A, Marusawa H, Izumi N. The efficacy and safety of lenvatinib in patients who did not meet the inclusion criteria of the phase III trial (REFLECT trial) and those with BCLC Stage B hepatocellular carcinoma: A nationwide multicenter study in Japan. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Tsuchiya K, Howard Caldwell C, Freudenberg N, Silver M, Wedepohl S, Lachance L. Catalytic Leadership in Food & Fitness Community Partnerships. Health Promot Pract 2019; 19:45S-54S. [PMID: 30176777 DOI: 10.1177/1524839918782699] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Catalytic leadership is a type of multidimensional leadership that facilitates cross-sector collaboration to enact systems and policy changes within communities. Catalytic leaders provide opportunities for stakeholders to partner and merge their efforts to create new opportunities for their work. Catalytic leaders are individuals, organizations, and collaborative partnerships that stimulate partnership alliances. Additionally, catalytic partnerships facilitate the process of collaboration through encouraging and supporting stakeholders to work together effectively and successfully. This article provides examples of catalytic leadership roles that emerged from the Food & Fitness community partnerships. These partnerships were funded by the W.K. Kellogg Foundation to increase access to locally grown food and safe places to play for children and families through systems and policy changes in communities throughout the United States. Key strategies and types of support (i.e., informational and instrumental support) provided through Food & Fitness catalytic leadership that sustained the work of these partnerships was discussed. Based on catalytic leadership strategies identified and types of support provided, outcomes that emerged from this work were also described. We conclude with key recommendations for community partnerships interested in serving as catalytic leaders for large-scale initiatives in their communities.
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Affiliation(s)
| | | | - Nicholas Freudenberg
- 2 City University of New York (CUNY) Graduate School of Public Health and Health Policy, New York, NY, USA
| | - Michele Silver
- 2 City University of New York (CUNY) Graduate School of Public Health and Health Policy, New York, NY, USA
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Tsuchiya K, Qian Y, Thomas A, Hill De Loney E, Caldwell CH. The Effects of Multiple Dimensions of Risk and Protective Factors on Depressive Symptoms Among Nonresident African American Fathers. Am J Community Psychol 2018; 62:464-475. [PMID: 30207382 DOI: 10.1002/ajcp.12275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Compared to other groups, African American men experience proportionately greater adverse social and economic circumstances, which have been linked to poor mental health. A growing body of literature has begun to examine depressive symptoms among African American men; however, limited literature has examined the concurrent contributions of risk and protective factors among nonresident African American fathers. This study examined the relative contribution of perceived financial strain, perceived neighborhood characteristics, and interpersonal stress on depressive symptoms among 347 nonresident African American fathers. Social support was examined as a protective factor for depressive symptoms. Results from hierarchical regression analyses indicated interpersonal stress was associated with depressive symptoms even after controlling for perceived financial strain, perceived neighborhood characteristics, and specific sociodemographic factors. Additionally, among fathers with high interpersonal stress, having more social support buffered the negative effect of interpersonal stress on depressive symptoms. Findings suggest experiencing strain from multiple dimensions can increase the risk of depressive symptoms among nonresident African American fathers. We also found that interpersonal stress was especially harmful for mental health. Family service providers and mental health professionals should incorporate stress management techniques to reduce stressful interpersonal relationships as a way to lower depressive symptoms among nonresident African American fathers.
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Affiliation(s)
- Kazumi Tsuchiya
- Department of Health Behavior and Health Education, University of Michigan, School of Public Health, Ann Arbor, MI, USA
| | - Yiqing Qian
- Department of Health Behavior and Health Education, University of Michigan, School of Public Health, Ann Arbor, MI, USA
| | | | | | - Cleopatra Howard Caldwell
- Department of Health Behavior and Health Education, University of Michigan, School of Public Health, Ann Arbor, MI, USA
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Nishimura Y, Kodaira T, Ito Y, Tsuchiya K, Murakami Y, Saitoh J, Akimoto T, Nakata K, Yoshimura M, Teshima T, Toshiyasu T, Ota Y, Ishikawa K, Shimizu H, Minemura T, Ishikura S, Shibata T, Nakamura K, Shibata T, Hiraoka M. A Phase II Study of Two-Step Intensity Modulated Radiation Therapy (IMRT) with Chemotherapy for Loco-Regionally Advanced Nasopharyngeal Cancer (NPC) (JCOG1015). Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Fujima N, Hirata K, Shiga T, Li R, Yasuda K, Onimaru R, Tsuchiya K, Kano S, Mizumachi T, Homma A, Kudo K, Shirato H. Integrating quantitative morphological and intratumoural textural characteristics in FDG-PET for the prediction of prognosis in pharynx squamous cell carcinoma patients. Clin Radiol 2018; 73:1059.e1-1059.e8. [PMID: 30245069 DOI: 10.1016/j.crad.2018.08.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/24/2018] [Indexed: 12/15/2022]
Abstract
AIM To assess potential prognostic factors in pharynx squamous cell carcinoma (SCC) patients by quantitative morphological and intratumoural characteristics obtained by 2-[18F]-fluoro-2-deoxy-d-glucose positron-emission tomography/computed tomography (FDG-PET/CT). MATERIALS AND METHODS The cases of 54 patients with pharynx SCC who underwent chemoradiation therapy were analysed retrospectively. Using their FDG-PET data, the quantitative morphological and intratumoural characteristics of 14 parameters were calculated. The progression-free survival (PFS) and overall survival (OS) information was obtained from patient medical records. Univariate and multivariate analyses were performed to assess the 14 quantitative parameters as well as the T-stage, N-stage, and tumour location data for their relation to PFS and OS. When an independent predictor was suggested in the multivariate analysis, the parameter was further assessed using the Kaplan-Meier method. RESULTS In the assessment of PFS, the univariate and multivariate analyses indicated the following as independent predictors: the texture parameter of homogeneity and the morphological parameter of sphericity. In the Kaplan-Meier analysis, the PFS rate was significantly improved in the patients who had both a higher value of homogeneity (p=0.01) and a higher value of sphericity (p=0.002). With the combined use of homogeneity and sphericity, the patients with different PFS rates could be divided more clearly. CONCLUSION The quantitative parameters of homogeneity and sphericity obtained by FDG-PET can be useful for the prediction of the PFS of pharynx SCC patients, especially when used in combination.
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Affiliation(s)
- N Fujima
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, N14 W5, Kita-Ku, Sapporo 0608638, Japan.
| | - K Hirata
- Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - T Shiga
- Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - R Li
- Department of Radiation Oncology, Stanford University, 875 Blake Wilbur Drive, Stanford, CA 94305-5847, USA; The Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, N15 W8, Kita-Ku, Sapporo 0608638, Japan
| | - K Yasuda
- The Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, N15 W8, Kita-Ku, Sapporo 0608638, Japan; Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - R Onimaru
- Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - K Tsuchiya
- Department of Radiation Oncology, Otaru General Hospital, Wakamatsu1-1-1, Otaru 0478550, Japan
| | - S Kano
- Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - T Mizumachi
- Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - A Homma
- Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - K Kudo
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, N14 W5, Kita-Ku, Sapporo 0608638, Japan
| | - H Shirato
- The Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, N15 W8, Kita-Ku, Sapporo 0608638, Japan; Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
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Sobue Y, Matsuo H, Kawase Y, Kondo T, Tanigaki T, Okamoto S, Omori H, Hirata T, Kikuchi J, Ota H, Miyake T, Kawamura I, Kamiya H, Tsuchiya K, Suzuki T. 3284Impact of noninvasive fractional flow reserve derived from coronary computed tomography angiography for prognosis in patients with suspected stable coronary artery disease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.3284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y Sobue
- Gifu Heart Center, Gifu, Japan
| | | | | | - T Kondo
- Gifu Heart Center, Gifu, Japan
| | | | | | - H Omori
- Gifu Heart Center, Gifu, Japan
| | | | | | - H Ota
- Gifu Heart Center, Gifu, Japan
| | | | | | | | | | - T Suzuki
- Toyohashi Heart Center, Toyohashi, Japan
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Yajima A, Tsuchiya K, Bonewald LF, Inaba M, Tominaga Y, Tanizawa T, Ito A, Nitta K. Case report: Electron microscopic evaluation of bone from a patient treated with cinacalcet hydrochloride, maxacalcitol, and alfacalcidol for hyperparathyroid bone disease with secondary hyperparathyroidism. Osteoporos Int 2018; 29:1203-1209. [PMID: 29492624 DOI: 10.1007/s00198-018-4402-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 01/18/2018] [Indexed: 11/27/2022]
Abstract
Evaluation of bone is of great importance in chronic kidney disease patients, as these patients are at an increased risk for fractures. We treated a hemodialysis patient suffering from hyperparathyroid bone disease with cinacalcet hydrochloride and concurrent administration of maxacalcitol and alfacalcidol for a year. Hyperparathyroid bone disease is characterized by cortical thinning, increased cortical porosity, reduced trabecular bone volume, and increased hypomineralized matrix volume, and there is little information to date about the effects of treatment with cinacalcet hydrochloride on the bone fragility in patients with hyperparathyroid bone disease. In the present study, histological and backscattered electron microscopic evaluation of this combination treatment revealed an excellent improvement of both bone volume and bone morphology. This treatment improved cortical thinning, cortical porosity, and trabecular thinning. Furthermore, the treatment also reduced hypomineralized matrix volume, indicative of improved mineralization by osteocytes. We speculate that the intermittent maxacalcitol administration may have effectively stimulated the vitamin D receptors expressed on osteocytes and osteoblasts, resulting in increased mineralization. Our approach for evaluating the bone in patients with chronic kidney disease by backscattered electron microscopy is novel.
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Affiliation(s)
- A Yajima
- Department of Medicine, Kidney Center, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan.
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA.
| | - K Tsuchiya
- Department of Blood Purification, Kidney Center, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
| | - L F Bonewald
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Oral and Craniofacial Sciences, University of Missouri, School of Dentistry, Kansas City, MI, USA
| | - M Inaba
- Department of Metabolism, Endocrinology and Molecular Medicine, Osaka City University, Abeno-ku, Osaka, Japan
| | - Y Tominaga
- Department of Endocrine Surgery, Nagoya Second Red Cross Hospital, Nagoya, Aichi, Japan
| | - T Tanizawa
- Department of Orthopedic Surgery, Tanizawa Clinic, Niigata, Niigata, Japan
| | - A Ito
- Ito Bone Histomorphometry Institute, Niigata, Niigata, Japan
| | - K Nitta
- Department of Medicine, Kidney Center, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan
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Abstract
The authors developed a portable air driving unit for an artificial heart. As the portable energy source of the driver, a commercially available Ni-Cd battery was used. A linear compressor was selected as a portable size compressor. To reduce the number of parts to be assembled, a new type of pneumatic system was employed. In this system, the pressure level was regulated by varying the output flow rate of the compressor instead of using a pressure regulator and large air reservoirs. A one-board microcomputer and pressure sensors were used to control the pressure level. The total weight of the unit is 9.5 Kg. After assembling the components into the portable unit, a blood pump was connected to examine the output characteristics of the system. It was confirmed that the unit could drive the blood pump continuously for more than 2 hours under the following conditions: output flow rate of the blood pump = 5 L/min and output pressure — 100 mmHg.
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Affiliation(s)
- N. Kabei
- Institute of Bio-medical Engineering, Tokyo Women's Medical College. 8-1 Kawada-cho Shinjuku-ku Tokyo, 162 Japan
| | - E. Shimemura
- Department of Mechanical Engineering, Faculty of Science and Engineering, Waseda Univerisity, 3-4-1 Okubo, Shinjuku-ku, Tokyo - Japan
| | - Y. Sakurai
- Institute of Bio-medical Engineering, Tokyo Women's Medical College. 8-1 Kawada-cho Shinjuku-ku Tokyo, 162 Japan
| | - K. Tsuchiya
- Department of Mechanical Engineering, Faculty of Science and Engineering, Waseda Univerisity, 3-4-1 Okubo, Shinjuku-ku, Tokyo - Japan
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Akioka K, Ishikawa T, Osaka M, Kadotani Y, Okugawa K, Nakano K, Osaka Y, Tsuchiya K, Sako H. Hyperuricemia and Acute Renal Failure in Renal Transplant Recipients Treated With High-Dose Mizoribine. Transplant Proc 2017; 49:73-77. [PMID: 28104163 DOI: 10.1016/j.transproceed.2016.11.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Hyperuricemia is a common adverse event frequently found in renal transplant recipients with mizoribine (MZ). Hyperuricemia itself will be a cause of renal dysfunction, and renal dysfunction also will be a cause of hyperuricemia simultaneously. This study investigates frequency of hyperuricemia and renal failure in renal transplant recipients treated with high-dose MZ. PATIENTS AND METHODS From December 2007 to October 2015, there was a total of 32 living related renal transplant recipients treated with high-dose MZ. Of the 32 patients, 28 were treated with urate-lowering medications. RESULTS One patient received allopurinol (AP) and 13 patients received benzbromarone (BB). For 6 of them, their urate-lowering medications were converted to febuxostat (FX) form AP or BB. In the remaining 14 patients, FX was administered from the beginning. In 2 cases of ABO-incompatible living related renal transplant recipients who were maintained with high-dose MZ and BB, severe hyperuricemia and acute renal failure occurred. One patient was a 48-year-old man, and his creatinine (Cr) level increased to 8.14 mg/dL and his serum uric acid (UA) was 24.6 mg/dL. Another patient was a 57-year-old man, and his Cr level increased to 3.59 mg/dL and his UA was 13.2 mg/dL. In both cases Cr and UA were improved, and no finding of acute rejection and drug toxicity was observed in graft biopsy specimens. BB was switched to FX and discontinuance or reduction of MZ was done. CONCLUSION Combination of MZ and BB has the risk of acute renal dysfunction after renal transplantation. Latent renal dysfunction should be watched for in renal transplant recipients receiving high-dose MZ.
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Affiliation(s)
- K Akioka
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan.
| | - T Ishikawa
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - M Osaka
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - Y Kadotani
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - K Okugawa
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - K Nakano
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - Y Osaka
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - K Tsuchiya
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
| | - H Sako
- Surgery, Omihachiman Community Medical Center, Omihachiman, Japan
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Affiliation(s)
- K. Tsuchiya
- Japan Atomic Energy Agency 4002 Narita-cho, Oarai-machi, Higashi-ibaraki-gun, Ibaraki-ken 311-1393, Japan
| | - H. Kawamura
- Japan Atomic Energy Agency 4002 Narita-cho, Oarai-machi, Higashi-ibaraki-gun, Ibaraki-ken 311-1393, Japan
| | - T. Ishida
- Japan Atomic Energy Agency 4002 Narita-cho, Oarai-machi, Higashi-ibaraki-gun, Ibaraki-ken 311-1393, Japan
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36
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Longhurst GR, Tsuchiya K, Dorn CH, Folkman SL, Fronk TH, Ishihara M, Kawamura H, Tranter TN, Rohe R, Uchida M, Vidal E. Managing Beryllium in Nuclear Facility Applications. NUCL TECHNOL 2017. [DOI: 10.13182/nt11-a13318] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - K. Tsuchiya
- Japan Atomic Energy Agency, Oarai-machi, Higashiibaraki-gun, Ibaraki-ken, Japan
| | - C. H. Dorn
- Materion Brush Beryllium & Composites, Upland, California
| | | | | | - M. Ishihara
- Japan Atomic Energy Agency, Oarai-machi, Higashiibaraki-gun, Ibaraki-ken, Japan
| | - H. Kawamura
- Japan Atomic Energy Agency, Oarai-machi, Higashiibaraki-gun, Ibaraki-ken, Japan
| | - T. N. Tranter
- Materion Brush Beryllium & Composites, Upland, California
| | - R. Rohe
- Idaho National Laboratory, Idaho Falls, Idaho
| | - M. Uchida
- NGK Insulators Ltd., Handa-shi, Aichi-ken, Japan
| | - E. Vidal
- Materion Brush Beryllium & Composites, Elmore, Ohio
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Sugie T, Hatae T, Koide Y, Fujita T, Kusama Y, Nishitani T, Isayama A, Sato M, Shinohara K, Asakura N, Konoshima S, Kubo H, Takenaga H, Kawano Y, Kondoh T, Nagashima A, Fukuda T, Sunaoshi H, Naito O, Kitamura S, Tsukahara Y, Sakasai A, Sakamoto Y, Suzuki T, Tobita K, Nemoto M, Morioka A, Ishikawa M, Ishida S, Isei N, Oyama N, Neyatani Y, Itami K, Sakurai S, Tamai H, Tsuchiya K, Higashijima S, Nakano T, Nagaya S, Chiba S, Lee S, Shitomi M. Diagnostics System of JT-60U. Fusion Science and Technology 2017. [DOI: 10.13182/fst02-a242] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Sugie
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Hatae
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - Y. Koide
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Fujita
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - Y. Kusama
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Nishitani
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - A. Isayama
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - M. Sato
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - K. Shinohara
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - N. Asakura
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Konoshima
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - H. Kubo
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - H. Takenaga
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - Y. Kawano
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Kondoh
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - A. Nagashima
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Fukuda
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - H. Sunaoshi
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - O. Naito
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Kitamura
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - Y. Tsukahara
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - A. Sakasai
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - Y. Sakamoto
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Suzuki
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - K. Tobita
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - M. Nemoto
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - A. Morioka
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - M. Ishikawa
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Ishida
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - N. Isei
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - N. Oyama
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - Y. Neyatani
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - K. Itami
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Sakurai
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - H. Tamai
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - K. Tsuchiya
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Higashijima
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - T. Nakano
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Nagaya
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Chiba
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - S. Lee
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
| | - M. Shitomi
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment 801-01 Mukoyama, Naka-machi, Naka-gun, Ibaraki 311-0193, Japan
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Kamada Y, Fujita T, Ishida S, Kikuchi M, Ide S, Takizuka T, Shirai H, Koide Y, Fukuda T, Hosogane N, Tsuchiya K, Hatae T, Takenaga H, Sato M, Nakamura H, Naito O, Asakura N, Kubo H, Higashijima S, Miura Y, Yoshino R, Shimizu K, Ozeki T, Hirayama T, Mori M, Sakamoto Y, Kawano Y, Isayama A, Ushigusa K, Ikeda Y, Kimura H, Fujii T, Imai T, Nagami M, Takeji S, Oikawa T, Suzuki T, Nakano T, Oyama N, Sakurai S, Konoshima S, Sugie T, Tobita K, Kondoh T, Tamai H, Neyatani Y, Sakasai A, Kusama Y, Itami K, Shimada M, Ninomiya H, Urano H. Fusion Plasma Performance and Confinement Studies on JT-60 and JT-60U. Fusion Science and Technology 2017. [DOI: 10.13182/fst02-a227] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Kamada
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Fujita
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Ishida
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Kikuchi
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Ide
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Takizuka
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Shirai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Koide
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Fukuda
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - N. Hosogane
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Tsuchiya
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Hatae
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Takenaga
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Sato
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Nakamura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - O. Naito
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - N. Asakura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Kubo
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Higashijima
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Miura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - R. Yoshino
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Shimizu
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Ozeki
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Hirayama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Mori
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Sakamoto
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Kawano
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - A. Isayama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Ushigusa
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Ikeda
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Kimura
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Fujii
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Imai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Nagami
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Takeji
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Oikawa
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Suzuki
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Nakano
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - N. Oyama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Sakurai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - S. Konoshima
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Sugie
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Tobita
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - T. Kondoh
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Tamai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Neyatani
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - A. Sakasai
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - Y. Kusama
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - K. Itami
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - M. Shimada
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
| | - H. Ninomiya
- Japan Atomic Energy Research Institute Naka Fusion Research Establishment, Naka-machi, Naka-gun, Ibaraki-ken, Japan
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Kulsartov T, Tazhibayeva I, Gordienko Y, Chikhray E, Tsuchiya K, Kawamura H, Kulsartova A. Study of Tritium and Helium Release from Irradiated Lithium Ceramics Li 2TiO 3. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12616] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Kulsartov
- Institute of Atomic Energy, NNC RK, Krasnoarmeyskaya-10, Kurchatov, 071100, Kazakhstan
| | - I. Tazhibayeva
- Institute of Atomic Energy, NNC RK, Krasnoarmeyskaya-10, Kurchatov, 071100, Kazakhstan
| | - Yu. Gordienko
- Institute of Atomic Energy, NNC RK, Krasnoarmeyskaya-10, Kurchatov, 071100, Kazakhstan
| | - E. Chikhray
- SRI ETP al-Farabi KazNSU, Tole bi, 96a, Almaty, Kazakhstan
| | - K. Tsuchiya
- Neutron Irradiation and Testing Reactor Center, JAEA, Oarai, Highashiibaraki, Ibaraki, 311-1393 Japan
| | - H. Kawamura
- Neutron Irradiation and Testing Reactor Center, JAEA, Oarai, Highashiibaraki, Ibaraki, 311-1393 Japan
| | - A. Kulsartova
- Nuclear Technology Safety Center, L.Chaikina, 4, Almaty, 050020, Kazakhstan
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Kume S, Gomyo M, Kobayashi K, Saito K, Shimizu S, Suzuki K, Maruyama K, Tsuchiya K, Shiokawa Y, Nagane M. P04.13 Detection and quantitative analysis of oncometabolite 2-hydroxyglutarate by 1H-magnetic resonance spectroscopy and LCModel in gliomas. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Katoh M, Fujimoto M, Kawaguchi H, Tsuchiya K, Ohmi K, Kaneyasu T, Taira Y, Hosaka M, Mochihashi A, Takashima Y. Angular Momentum of Twisted Radiation from an Electron in Spiral Motion. Phys Rev Lett 2017; 118:094801. [PMID: 28306317 DOI: 10.1103/physrevlett.118.094801] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Indexed: 06/06/2023]
Abstract
We theoretically demonstrate for the first time that a single free electron in circular or spiral motion emits twisted photons carrying well-defined orbital angular momentum along the axis of the electron circulation, in adding to spin angular momentum. We show that, when the electron velocity is relativistic, the radiation field contains harmonic components and the photons of lth harmonic carry lℏ total angular momentum for each. This work indicates that twisted photons are naturally emitted by free electrons and are more ubiquitous in laboratories and in nature than ever thought.
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Affiliation(s)
- M Katoh
- Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki 444-8585, Japan
- Sokendai (the Graduated University for Advanced Studies), Okazaki 444-8585, Japan
| | - M Fujimoto
- Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki 444-8585, Japan
- Sokendai (the Graduated University for Advanced Studies), Okazaki 444-8585, Japan
| | - H Kawaguchi
- Muroran Institute of Technology, Muroran 050-0071, Japan
| | - K Tsuchiya
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K Ohmi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | | | - Y Taira
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8568, Japan
| | - M Hosaka
- Nagoya University, Nagoya 464-0814, Japan
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Magata F, Tsuchiya K, Komaki H, Konishi M, Ideta A. 142 POSSIBLE BENEFIT OF INTRACYTOPLASMIC SPERM INJECTION ON THE EFFICIENCY OF EMBRYO PRODUCTION IN AGED COWS. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Reduction in oocyte quality is a major factor responsible for declining fertility with age. The abnormal fertilization rate of oocytes from aged cows was reportedly higher than that of oocytes from young cows (Iwata et al. 2011. Reprod. Fertil. Dev. 23, 424–432). We hypothesised that assisted fertilization by intracytoplasmic sperm injection (ICSI) might improve the developmental abilities of oocytes collected from aged females. The aims of the study were (1) to determine the effect of maternal aging on the ability of bovine oocytes to undergo cytoplasmic maturation, fertilization, and further embryo development; and (2) to determine whether ICSI would improve the efficiency of embryo production in aged cows. Cows aged 30 to 50 months or >120 months were defined as young or aged, respectively. Cumulus-oocyte complexes were harvested from abattoir-derived ovaries of young (40 ± 7 months, n = 89) and aged (136 ± 12 months, n = 55) Holstein cows and matured for 23 h in TCM-199 supplemented with 5% fetal bovine serum (FBS) at 38.5°C under 5% CO2 with saturated humidity. Then, surrounding cumulus cells were removed, and cortical granules in the oocyte were stained with Lens culinaris–fluorescein isothiocyanate to evaluate the cytoplasmic maturation. Matured oocytes were inseminated by IVF or ICSI. At 15 h post-insemination, the numbers of pronuclei were determined to evaluate the fertilization rates. Presumptive IVF- or ICSI-derived zygotes were cultured for 5 days in CR1aa medium with 2% FBS and subsequently in USU6 with 5% FBS for 3 days at 38.5°C in 5% O2, 5% CO2, and 90% N2 with saturated humidity. Chromosome numbers of blastocysts were counted to evaluate the effect of maternal aging on ploidy. All experiments were performed with more than 4 independent runs, and data were analysed using chi-square tests. The distribution of matured oocytes into different cortical granule classes was affected by age, with a significantly lower (P < 0.01) proportion of class III (mature cytoplasm) oocytes from aged cows (29%) compared with those from young cows (57%). Although fertilization rates following IVF did not differ between the groups, the proportion of abnormal fertilization (more than 2 pronuclei) was 32% in the aged group: higher than in the young group (15%; P < 0.01). The rates of cleaved embryos following IVF were the same among groups, but the rate of development to the blastocyst stage of oocytes from aged cows (38%) was significantly (P < 0.05) lower than in those from young cows (52%). Moreover, the proportion of diploid blastocysts with 2 sets of chromosomes (2n = 60) was lower (47%) in the aged than in the young groups (75%; P < 0.05). However, in the ICSI embryos, the rates of development to the blastocyst stage did not differ significantly between groups (young 36%; aged 43%). Thus, maternal aging might impair the cytoplasmic maturation of bovine oocytes, which could be associated with abnormal fertilization or low developmental competence. Our results also indicate possible beneficial effects of ICSI on the efficiency of embryo production in aged cows.
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Takeuchi T, Nakano H, Uehara T, Tsuchiya K. Effect of dissolved gas on mechanical property of sheath material of mineral insulated cables under high temperature and pressure water. Nuclear Materials and Energy 2016. [DOI: 10.1016/j.nme.2016.06.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Tsuchiya K, Kubota K, Ohbuchi K, Kaneko A, Ohno N, Mase A, Matsushima H, Yamamoto M, Miyano K, Uezono Y, Kono T. Transient receptor potential ankyrin 1 agonists improve intestinal transit in a murine model of postoperative ileus. Neurogastroenterol Motil 2016; 28:1792-1805. [PMID: 27284001 DOI: 10.1111/nmo.12877] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 05/10/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Stimulation of transient receptor potential ankyrin 1 (TRPA1), which abundantly expressed in enterochromaffin cells (ECC), has been reported to exert apparently contradictory results in in vitro contractility and in vivo gastrointestinal (GI) transit evaluations. The pharmaceutical-grade Japanese traditional medicine daikenchuto (TU-100) has been reported to be beneficial for postoperative ileus (POI) and accelerate GI transit in animals and humans. TU-100 was recently shown to increase intestinal blood flow via stimulation of TRPA1 in the epithelial cells of the small intestine (SI). METHODS The effects of various TRPA1 agonists on motility were examined in a manipulation-induced murine POI model, in vitro culture of SI segments and an ECC model cell line, RIN-14B. KEY RESULTS Orally administered TRPA1 agonists, aryl isothiocyanate (AITC) and cinnamaldehyde (CA), TU-100 ingredients, [6]-shogaol (6S) and γ-sanshool (GS), improved SI transit in a POI model. The effects of AITC, 6S and GS but not CA were abrogated in TRPA1-deficient mice. SI segments show periodic peristaltic motor activity whose periodicity disappeared in TRPA1-deficient mice. TU-100 augmented the motility. AITC, CA and 6S increased 5-HT release from isolated SI segments and the effects of all these compounds except for CA were lost in TRPA1-deficient mice. 6S and GS induced a release of 5-HT from RIN-14B cells in a dose- and TRPA1-dependent manner. CONCLUSIONS & INFERENCES Intraluminal TRPA1 stimulation is a potential therapeutic strategy for GI motility disorders. Further investigation is required to determine whether 5-HT and/or ECC are involved in the effect of TRPA1 on motility.
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Affiliation(s)
- K Tsuchiya
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - K Kubota
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - K Ohbuchi
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - A Kaneko
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - N Ohno
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - A Mase
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - H Matsushima
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - M Yamamoto
- Tsumura Research Laboratories, Tsumura & Co., Ibaraki, Japan
| | - K Miyano
- Division of Cancer Pathophysiology, National Cancer Center Research Institute, Tokyo, Japan
| | - Y Uezono
- Division of Cancer Pathophysiology, National Cancer Center Research Institute, Tokyo, Japan
| | - T Kono
- Laboratory of Pathophysiology & Therapeutics, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan.,Center for Clinical and Biomedical Research, Sapporo Higashi Tokushukai Hospital, Sapporo, Japan
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Nishimura Y, Kodaira T, Ito Y, Tsuchiya K, Murakami Y, Saitoh J, Akimoto T, Nakata K, Yoshimura M, Teshima T, Toshiyasu T, Ota Y, Ishikawa K, Shimizu H, Minemura T, Ishikura S, Shibata T, Nakamura K, Shibata T, Hiraoka M. A Phase II Study of Intensity Modulated Radiation Therapy (IMRT) with Chemotherapy for Locoregionally Advanced Nasopharyngeal Cancer (NPC) (JCOG1015): Acute Toxicity and Treatment Compliance. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Tsuchiya K, Katase S, Hachiya J, Shiokawa Y. Volume-rendered 3D display of MR angiograms in the diagnosis of cerebral arteriovenous malformations. Acta Radiol 2016; 44:675-9. [PMID: 14616214 DOI: 10.1080/02841850312331287729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Purpose: To determine whether application of a volume-rendered display of 3D time-of-flight (TOF) MR angiography could assist the diagnosis of cerebral arteriovenous malformations (AVMs). Material and Methods: Volume-rendered 3D images of postcontrast 3D time-of-flight MR angiography were compared with conventional angiograms in 12 patients. The correlation between the 3D images and the operative findings was also analyzed in 5 patients. Results: The 3D-displayed images showed all of the feeders and drainers in 10 and 9 patients, respectively. In all patients, the nidus was three-dimensionally visualized. In 3 patients with hematomas, the relationship between the hematoma and the AVM was well demonstrated. The 3D images corresponded well with the operative findings in the 5 patients. Conclusion: This method is of help in assessing the relationship between the components of an AVM as well as that between an AVM and an associated hematoma.
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Affiliation(s)
- K Tsuchiya
- Department of Radiology, Kyorin University School of Medicine, Shinkawa, Mitaka, Tokyo, Japan.
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Kubota A, Suguro T, Sekiguchi M, Ikata S, Takeuchi S, Tsuchiya K. AB0060 Histopathological Change Caused by Biological Treatment in Rheumatoid Arthritis Synovial Tissue. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Nishikawa Y, Yasuda K, Okamoto S, Ito Y, Mori T, Onimaru R, Shiga T, Tsuchiya K, Watanabe S, Takeuchi W, Katoh N, Kuge Y, Tamaki N, Shirato H. The Voxel-based Analysis of FMISO-PET Image in Patients With Local Recurrence of Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Igarashi H, Yamashita H, Sugimoto D, Hanaoka Y, Nakamura H, Tsuchiya K, Okada M, Ogata I. MON-PP049: Malnutrition among Patients with Peptic Ulcer Hemorrhage and Simple Predictors of Delayed Nutritional Recovery. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30481-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kaneko C, Nitta N, Tsuchiya K, Watanabe S, Nitta-Seko A, Ohta S, Otani H, Sonoda A, Murata K, Shiomi M. MRI study of atherosclerotic plaque progression using ultrasmall superparamagnetic iron oxide in Watanabe heritable hyperlipidemic rabbits. Br J Radiol 2015; 88:20150167. [PMID: 26083261 DOI: 10.1259/bjr.20150167] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE The purpose of this study was to evaluate plaque progression by using MRI with ultrasmall superparamagnetic iron oxide (USPIO) and by histopathological studies. METHODS We divided 12 Watanabe heritable hyperlipidemic (WHHL) rabbits into 4 groups based on their age (3, 9, 14 and 26 months) and injected them intravenously with 0.8 mmol (Fe) kg(-1) of USPIO (size, 32 nm; concentration, 15 mg dl(-1)). On the fifth post-injection day, they were again given an intravenous injection with 40 μmol kg(-1) of the same USPIO, and MR angiography (MRA) was performed. The signal-to-noise ratio (SNR) in regions of interest in the wall of the upper abdominal aorta was calculated on coronal images. Specimens from the same level of the aorta were subjected to iron staining and RAM-11 immunostaining and used for histopathological study. For statistical analysis of the MRA and histopathological findings, we used analysis of variance [Tukey's honest significant difference (HSD) test]. RESULTS In 9-month-old rabbits, the SNR was significantly lower than in rabbits of the other ages (p < 0.01), and the area of RAM-11 (DAKO Corporation, Glostrup, Denmark) and iron uptake in the aortic wall was significantly larger (RAM-11, p < 0.01; iron, p < 0.05). These areas were the smallest in 3-month-old rabbits. CONCLUSION Histopathologically, the number of macrophages was the greatest in 9-month-old rabbits. Our findings indicate that the SNR on MRI scans reflects the number of macrophages in the aortic wall of WHHL rabbits. ADVANCES IN KNOWLEDGE USPIO-enhanced MRI visualized the accumulation of macrophages in early atherosclerotic plaques of WHHL rabbits in the course of natural progression.
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Affiliation(s)
- C Kaneko
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - N Nitta
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - K Tsuchiya
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - S Watanabe
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - A Nitta-Seko
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - S Ohta
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - H Otani
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - A Sonoda
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - K Murata
- 1 Department of Radiology, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - M Shiomi
- 2 Institute for Experimental Animals, Kobe University School of Medicine, Kobe, Hyogo, Japan
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