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Yamada M, Lohse KR, Rhea CK, Schmitz RJ, Raisbeck LD. Do attentional focus cues affect the type or number of explicit rules? Proof of concepts of the self-invoking trigger or explicit knowledge hypotheses. Psychol Sport Exerc 2024; 70:102547. [PMID: 37832211 DOI: 10.1016/j.psychsport.2023.102547] [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] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/21/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023]
Abstract
Internal focus has been shown to be detrimental to performance by disrupting the motor system, whereas external focus enhances performance by promoting automaticity. One hypothesis, which explains the underlying mechanism of the disruption of the motor system, proposes that internal focus affects the type of thoughts (explicit rules) by invoking self-conscious, evaluative thoughts (McKay et al., 2015). In contrast, another hypothesis proposes that internal focus increases the number of explicit rules, loading working memory (Poolton et al., 2006). To examine the competing hypotheses, neurotypical young adults (22.98 ± 4.46 years old, n = 20 males, n = 40 females) were assigned to one of three groups: external focus (n = 20), internal focus (n = 20), and control (n = 20) groups, and practiced a reciprocal aiming task for two days with retention/transfer tests. Between trials, participant's thoughts were evaluated by an open-ended questionnaire. The type of explicit rules was analyzed using a chi-square test, and the number of explicit rules was analyzed using a mixed-effect Poisson regression. The results showed that external focus resulted in a greater proportion of explicit rules about the task and a lesser proportion of self-evaluative thoughts. The number of explicit rules did not differ between groups. Our results suggest that external focus may strengthen focus on task-relevant features, while internal focus moves people's attention away from important features, potentially explaining why the motor system is disrupted by internal focus.
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Affiliation(s)
- M Yamada
- The Department of Kinesiology, The University of North Carolina at Greensboro, United States; The Department of Kinesiology, Whittier College, Whittier, CA, United States.
| | - K R Lohse
- Program in Physical Therapy, Department of Neurology, Washington University School of Medicine in Saint Louis, United States
| | - C K Rhea
- The Department of Kinesiology, The University of North Carolina at Greensboro, United States; College of Health Science, Old Dominion University, United States
| | - R J Schmitz
- The Department of Kinesiology, The University of North Carolina at Greensboro, United States
| | - L D Raisbeck
- The Department of Kinesiology, The University of North Carolina at Greensboro, United States
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Ji H, Yoo J, Fox W, Yamada M, Argall M, Egedal J, Liu YH, Wilder R, Eriksson S, Daughton W, Bergstedt K, Bose S, Burch J, Torbert R, Ng J, Chen LJ. Laboratory Study of Collisionless Magnetic Reconnection. Space Sci Rev 2023; 219:76. [PMID: 38023292 PMCID: PMC10651714 DOI: 10.1007/s11214-023-01024-3] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 11/03/2023] [Indexed: 12/01/2023]
Abstract
A concise review is given on the past two decades' results from laboratory experiments on collisionless magnetic reconnection in direct relation with space measurements, especially by the Magnetospheric Multiscale (MMS) mission. Highlights include spatial structures of electromagnetic fields in ion and electron diffusion regions as a function of upstream symmetry and guide field strength, energy conversion and partitioning from magnetic field to ions and electrons including particle acceleration, electrostatic and electromagnetic kinetic plasma waves with various wavelengths, and plasmoid-mediated multiscale reconnection. Combined with the progress in theoretical, numerical, and observational studies, the physics foundation of fast reconnection in collisionless plasmas has been largely established, at least within the parameter ranges and spatial scales that were studied. Immediate and long-term future opportunities based on multiscale experiments and space missions supported by exascale computation are discussed, including dissipation by kinetic plasma waves, particle heating and acceleration, and multiscale physics across fluid and kinetic scales.
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Affiliation(s)
- H. Ji
- Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, 08544 New Jersey USA
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, 08543 New Jersey USA
| | - J. Yoo
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, 08543 New Jersey USA
| | - W. Fox
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, 08543 New Jersey USA
| | - M. Yamada
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, 08543 New Jersey USA
| | - M. Argall
- Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, 8 College Road, Durham, 03824 New Hampshire USA
| | - J. Egedal
- Department of Physics, University of Wisconsin - Madison, 1150 University Avenue, Madison, 53706 Wisconsin USA
| | - Y.-H. Liu
- Department of Physics and Astronomy, Dartmouth College, 17 Fayerweather Hill Road, Hanover, 03755 New Hampshire USA
| | - R. Wilder
- Department of Physics, University of Texas at Arlington, 701 S. Nedderman Drive, Arlington, 76019 Texas USA
| | - S. Eriksson
- Laboratory for Atmospheric and Space Physics, University of Colorado at Boulder, 1234 Innovation Drive, Boulder, 80303 Colorado USA
| | - W. Daughton
- Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, 87545 New Mexico USA
| | - K. Bergstedt
- Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, 08544 New Jersey USA
| | - S. Bose
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, 08543 New Jersey USA
| | - J. Burch
- Southwest Research Institute, 6220 Culebra Road, San Antonio, 78238 Texas USA
| | - R. Torbert
- Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, 8 College Road, Durham, 03824 New Hampshire USA
| | - J. Ng
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, 08543 New Jersey USA
- Department of Astronomy, University of Maryland, 4296 Stadium Drive, College Park, 20742 Maryland USA
- Goddard Space Flight Center, Mail Code 130, Greenbelt, 20771 Maryland USA
| | - L.-J. Chen
- Goddard Space Flight Center, Mail Code 130, Greenbelt, 20771 Maryland USA
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Ishikawa A, Matsuda T, Ikegami N, Funaki A, Yamada M, Kamemoto K, Sakamaki-Sunaga M. Effects of the menstrual cycle on EPOC and fat oxidation after low-volume high-intensity interval training. J Sports Med Phys Fitness 2023; 63:1165-1174. [PMID: 37712928 DOI: 10.23736/s0022-4707.23.15209-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
BACKGROUND Low-volume high-intensity interval training (HIIT) for weight loss has become prevalent in recent years, with increased excess post-exercise oxygen consumption (EPOC) as the mechanism. However, the influence of the menstrual cycle on EPOC and fat oxidation following low-volume HIIT is unclear. This study aimed to investigate the effect of the menstrual cycle on the increase in EPOC and fat oxidation after low-volume HIIT. METHODS Twelve eumenorrheic women participated during their early follicular and luteal phases. On each experimental day, they performed low-volume HIIT comprising fifteen repeated 8 s sprint cycling tests with 12 s rests, for 5 min. Expired gas samples were collected before and every 60 min until 180 min post-exercise. EPOC was defined as the increase in oxygen consumption from the resting state, and the total EPOC and fat oxidation were calculated from the total time of each measurement. Blood samples for serum estradiol, progesterone, free fatty acids, blood glucose, lactate, and plasma noradrenaline were collected and assessed before immediately after, and at 180 min post-exercise and were assessed. RESULTS Serum estradiol and progesterone were significantly higher in the luteal phase than the follicular phase (P<0.01 for both). No significant differences in total EPOC and fat oxidation were found between the menstrual phases. Serum free fatty acid, blood glucose, lactate, and plasma noradrenaline concentrations were not affected by the menstrual cycle. CONCLUSIONS These results suggest that the menstrual cycle does not affect the increase in EPOC or fat oxidation after low-volume HIIT.
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Affiliation(s)
- Akira Ishikawa
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan -
| | - Tomoka Matsuda
- Department of Sport Science and Research, Japan Institute of Sports Sciences, Tokyo, Japan
| | - Nodoka Ikegami
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
| | - Akiko Funaki
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
- Department of Judo Therapy, Teikyo University of Science, Yamanashi, Japan
| | - Mizuki Yamada
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
- Japanese Society for the Promotion of Science, Tokyo, Japan
| | - Kayoko Kamemoto
- Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
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Yamada M, Gam H, Ikegami N, Nishikawa Y, Ishikawa A, Funaki A, Matsuda T, Kamemoto K, Hashimoto Y, Okamoto T, Yamazaki H, Tanaka H, Sakamaki-Sunaga M. Effects of acute aerobic exercise on arterial stiffness in transgender men. Front Physiol 2023; 14:1294284. [PMID: 38028805 PMCID: PMC10644819 DOI: 10.3389/fphys.2023.1294284] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023] Open
Abstract
Testosterone replacement therapy (TRT) in transgender men (TM) results in side effects such as elevated triglycerides and increased arterial stiffness. Exercise may be useful to ameliorate such effects, but no studies have examined the effects of acute aerobic exercise in TM. This study aimed to investigate the effects of acute aerobic exercise on arterial stiffness in TM. Thirty-six participants were included, comprising 12 TM (duration of TRT: 57.4 ± 30.3 months), 12 males and 12 females. All participants performed acute aerobic exercise on a treadmill at 50% heart rate reserve for 30 min. Arterial stiffness as measured by brachial-ankle pulse wave velocity (baPWV) was measured before exercise (Pre), 30 min after exercise (Post30), and 60 min after exercise (Post60). Serum sex hormone levels, and serum lipid profile were determined only before exercise. Serum low-density lipoprotein cholesterol (LDL-C) levels before exercise were significantly higher in TM than in males or females (males: p < 0.01; females: p < 0.05). At all points, baPWV in TM was significantly higher than in females (p < 0.05) and significantly lower than in males (p < 0.05). However, when comparing changes in baPWV over time in each group, significant decreases in Post30 and Post60 were seen in males compared to Pre (both p < 0.05), but no significant change after aerobic exercise was seen in TM or females. These results suggest that acute aerobic exercise yield different effects in TM than in males, but is unlikely to reduce arterial stiffness in TM receiving TRT.
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Affiliation(s)
- Mizuki Yamada
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
- Research Fellow, Japan Society for the Promotion of Science (JSPS), Tokyo, Japan
| | - Hyunjun Gam
- Department of Physical Education, Yongin University, Gyeonggi, Repulic of Korea
| | - Nodoka Ikegami
- Research Fellow, Japan Society for the Promotion of Science (JSPS), Tokyo, Japan
- Graduate School of Sport Sciences, Waseda University, Saitama, Japan
| | - Yuriko Nishikawa
- Graduate School of Sport Sciences, Waseda University, Saitama, Japan
| | - Akira Ishikawa
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Akiko Funaki
- Department of Judo Therapy, Teikyo University of Science, Yamanashi, Japan
| | - Tomoka Matsuda
- Department of Sport Sciences and Research, Japan Institute of Sports Sciences (JISS), Tokyo, Japan
| | - Kayoko Kamemoto
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
| | - Yuto Hashimoto
- Research Institute for Sports Science, Nippon Sport Science University, Tokyo, Japan
| | - Takanobu Okamoto
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
| | - Hiroki Yamazaki
- Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Hirotoshi Tanaka
- Department of Rheumatology, Kitasato University Kitasato Institute Hospital, Tokyo, Japan
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Kawabe N, Matsuoka K, Komeda K, Muraki N, Takaba M, Togami Y, Ito Y, Yamada M, Sunaga N, Girard L, Minna JD, Cai L, Xie Y, Tanaka I, Morise M, Sato M. Silencing of GRHL2 induces epithelial‑to‑mesenchymal transition in lung cancer cell lines with different effects on proliferation and clonogenic growth. Oncol Lett 2023; 26:391. [PMID: 37600329 PMCID: PMC10433723 DOI: 10.3892/ol.2023.13977] [Citation(s) in RCA: 1] [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: 10/20/2022] [Accepted: 05/04/2023] [Indexed: 08/22/2023] Open
Abstract
Grainyhead-like 2 (GRHL2) is a transcription factor that suppresses epithelial-to-mesenchymal transition (EMT). It has been previously shown that GRHL2 can confer both oncogenic and tumor-suppressive roles in human cancers, including breast, pancreatic and colorectal cancers. However, its role in lung cancer remains elusive. In the present study, a meta-analysis of multiple gene expression datasets with clinical data revealed that GRHL2 expression was increased in lung cancer compared with that in the normal tissues. Copy number analysis of GRHL2, performed using datasets of whole exome sequencing involving 151 lung cancer cell lines, revealed frequent amplifications, suggesting that the increased GRHL2 expression may have resulted from gene amplification. A survival meta-analysis of GRHL2 using The Cancer Genome Atlas (TCGA) dataset showed no association of GRHL2 expression with overall survival. GRHL2 expression was found to be associated with EMT status in lung cancer in TCGA dataset and lung cancer cell lines. GRHL2 knockdown induced partial EMT in the hTERT/Cdk4-immortalized normal lung epithelial cell line HBEC4KT without affecting proliferation measured by CCK-8 assays. In addition, GRHL2 silencing caused three lung cancer cell lines, H1975, H2009 and H441, to undergo partial EMT. However, the proliferative effects differed significantly. GRHL2 silencing promoted proliferation but not colony formation in H1975 cells whilst suppressing colony formation without affecting proliferation in H2009 cells, but it did not affect proliferation in H441 cells. These results suggest cell type-dependent effects of GRHL2 knockdown. Downstream, GRHL2 silencing enhanced the phosphorylation of AKT and ERK, assessed by western blotting with phospho-specific antibodies, in HBEC4KT, H1975 and H2009 cell lines but not in the H441 cell line. By contrast, transient GRHL2 overexpression did not affect A549 cell proliferation, which lack detectable endogenous expression of the GRHL2 protein. However, GRHL2 overexpression did suppress E-cadherin expression in A549 cells. These results suggested that GRHL2 does not only function as a tumor suppressor of EMT but can also behave as an oncogene depending on the lung cancer cell-type context.
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Affiliation(s)
- Nozomi Kawabe
- Division of Host Defense Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Aichi 461-8673, Japan
| | - Kohei Matsuoka
- Division of Host Defense Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Aichi 461-8673, Japan
| | - Kazuki Komeda
- Division of Host Defense Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Aichi 461-8673, Japan
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Nao Muraki
- Division of Host Defense Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Aichi 461-8673, Japan
| | - Miho Takaba
- Division of Host Defense Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Aichi 461-8673, Japan
| | - Yasuha Togami
- Division of Host Defense Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Aichi 461-8673, Japan
| | - Yumeno Ito
- Division of Host Defense Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Aichi 461-8673, Japan
| | - Mizuki Yamada
- Division of Host Defense Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Aichi 461-8673, Japan
| | - Noriaki Sunaga
- Department of Respiratory Medicine, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Luc Girard
- Hamon Center for Therapeutic Oncology Research, Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX 75230-8593, USA
| | - John D. Minna
- Hamon Center for Therapeutic Oncology Research, Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX 75230-8593, USA
| | - Ling Cai
- Quantitative Biomedical Research Center, Peter O'Donnell School of Public Health, UT Southwestern Medical Center, Dallas, TX 75230-8593, USA
| | - Yang Xie
- Quantitative Biomedical Research Center, Peter O'Donnell School of Public Health, UT Southwestern Medical Center, Dallas, TX 75230-8593, USA
| | - Ichidai Tanaka
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Masahiro Morise
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi 466-8550, Japan
| | - Mitsuo Sato
- Division of Host Defense Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Aichi 461-8673, Japan
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Matsuoka K, Yamada M, Fukatsu N, Goto K, Shimizu M, Kato A, Kato Y, Yukawa H, Baba Y, Sato M, Sato K. Contrast-enhanced ultrasound imaging for monitoring the efficacy of near-infrared photoimmunotherapy. EBioMedicine 2023; 95:104737. [PMID: 37558554 PMCID: PMC10505829 DOI: 10.1016/j.ebiom.2023.104737] [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: 04/10/2023] [Revised: 07/13/2023] [Accepted: 07/17/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Near-infrared photoimmunotherapy (NIR-PIT) is a promising cancer therapy combining NIR-light irradiation with an antibody and IR700DX, a light-sensitive substance, to destroy tumours. However, homogeneous irradiation is difficult because the light varies depending on the distance and tissue environment. Therefore, markers that indicate sufficient irradiation are necessary. Nanoparticles sized 10∼200 nm show enhanced permeation and retention within tumours, which is further enhanced via NIR-PIT (super enhanced permeability and retention, SUPR). We aimed to monitor the effectiveness of NIR-PIT by measuring SUPR. METHODS A xenograft mouse tumour model was established by inoculating human cancer cells in both buttocks of Balb/C-nu/nu mice, and NIR-PIT was performed on only one side. To evaluate SUPR, fluorescent signal examination was performed using QD800-fluorescent nanoparticles and NIR-fluorescent poly (d,l-lactide-co-glycolic acid) (NIR-PLGA) microparticles. Harmonic signals were evaluated using micro-bubbles of the contrast agent Sonazoid and contrast-enhanced ultrasound (CEUS) imaging. The correlation between SUPR immediately after treatment and NIR-PIT effectiveness on the day after treatment was evaluated. FINDINGS QD800 fluorescent signals persisted only in the treated tumours, and the intensity of remaining signals showed high positive correlation with the therapeutic effect. NIR-PLGA fluorescent signals and Sonazoid-derived harmonic signals remained for a longer time in the treated tumours than in the controls, and the kE value of the two-compartment model correlated with NIR-PIT effectiveness. INTERPRETATION SUPR measurement using Sonazoid and CEUS imaging could be easily adapted for clinical use as a therapeutic image-based biomarker for monitoring and confirming of NIR-PIT efficacy. FUNDING This research was supported by ARIM JAPAN of MEXT, the Program for Developing Next-generation Researchers (Japan Science and Technology Agency), KAKEN (18K15923, 21K07217) (JSPS), CREST (JPMJCR19H2, JST), and FOREST-Souhatsu (JST). Mochida Memorial Foundation for Medical and Pharmaceutical Research; Takeda Science Foundation; The Japan Health Foundation; and Princess Takamatsu Cancer Research Fund. Funders only provided financial support and had no role in the study design, data collection, data analysis, interpretation, and writing of the report.
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Affiliation(s)
- Kohei Matsuoka
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Mizuki Yamada
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Noriaki Fukatsu
- Nagoya University Institute for Advanced Research, Advanced Analytical and Diagnostic Imaging Center (AADIC)/Medical Engineering Unit (MEU), B3 Unit, Japan
| | - Kyoichi Goto
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Japan
| | - Misae Shimizu
- Nagoya University Institute for Advanced Research, Advanced Analytical and Diagnostic Imaging Center (AADIC)/Medical Engineering Unit (MEU), B3 Unit, Japan
| | - Ayako Kato
- Nagoya University Institute for Advanced Research, Advanced Analytical and Diagnostic Imaging Center (AADIC)/Medical Engineering Unit (MEU), B3 Unit, Japan
| | - Yoshimi Kato
- Nagoya University Institute for Advanced Research, Advanced Analytical and Diagnostic Imaging Center (AADIC)/Medical Engineering Unit (MEU), B3 Unit, Japan
| | - Hiroshi Yukawa
- Nagoya University Institute for Advanced Research, Advanced Analytical and Diagnostic Imaging Center (AADIC)/Medical Engineering Unit (MEU), B3 Unit, Japan; Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Japan; Institute of Nano-Life-Systems, Institutes of Innovation for Future Society, Nagoya University, Japan; National Institutes for Quantum Science and Technology, Institute for Quantum Life Science, Quantum Life and Medical Science, Japan; Development of Quantum-nano Cancer Photoimmunotherapy for Clinical Application of Refractory Cancer, Nagoya University, Japan
| | - Yoshinobu Baba
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Japan; Institute of Nano-Life-Systems, Institutes of Innovation for Future Society, Nagoya University, Japan; National Institutes for Quantum Science and Technology, Institute for Quantum Life Science, Quantum Life and Medical Science, Japan; Development of Quantum-nano Cancer Photoimmunotherapy for Clinical Application of Refractory Cancer, Nagoya University, Japan
| | - Mitsuo Sato
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Kazuhide Sato
- Nagoya University Institute for Advanced Research, Advanced Analytical and Diagnostic Imaging Center (AADIC)/Medical Engineering Unit (MEU), B3 Unit, Japan; Institute of Nano-Life-Systems, Institutes of Innovation for Future Society, Nagoya University, Japan; Development of Quantum-nano Cancer Photoimmunotherapy for Clinical Application of Refractory Cancer, Nagoya University, Japan; Nagoya University Graduate School of Medicine, Japan; FOREST-Souhatsu, JST, Tokyo, Japan.
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7
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Nakamura T, Matsumoto M, Amano K, Enokido Y, Zolensky ME, Mikouchi T, Genda H, Tanaka S, Zolotov MY, Kurosawa K, Wakita S, Hyodo R, Nagano H, Nakashima D, Takahashi Y, Fujioka Y, Kikuiri M, Kagawa E, Matsuoka M, Brearley AJ, Tsuchiyama A, Uesugi M, Matsuno J, Kimura Y, Sato M, Milliken RE, Tatsumi E, Sugita S, Hiroi T, Kitazato K, Brownlee D, Joswiak DJ, Takahashi M, Ninomiya K, Takahashi T, Osawa T, Terada K, Brenker FE, Tkalcec BJ, Vincze L, Brunetto R, Aléon-Toppani A, Chan QHS, Roskosz M, Viennet JC, Beck P, Alp EE, Michikami T, Nagaashi Y, Tsuji T, Ino Y, Martinez J, Han J, Dolocan A, Bodnar RJ, Tanaka M, Yoshida H, Sugiyama K, King AJ, Fukushi K, Suga H, Yamashita S, Kawai T, Inoue K, Nakato A, Noguchi T, Vilas F, Hendrix AR, Jaramillo-Correa C, Domingue DL, Dominguez G, Gainsforth Z, Engrand C, Duprat J, Russell SS, Bonato E, Ma C, Kawamoto T, Wada T, Watanabe S, Endo R, Enju S, Riu L, Rubino S, Tack P, Takeshita S, Takeichi Y, Takeuchi A, Takigawa A, Takir D, Tanigaki T, Taniguchi A, Tsukamoto K, Yagi T, Yamada S, Yamamoto K, Yamashita Y, Yasutake M, Uesugi K, Umegaki I, Chiu I, Ishizaki T, Okumura S, Palomba E, Pilorget C, Potin SM, Alasli A, Anada S, Araki Y, Sakatani N, Schultz C, Sekizawa O, Sitzman SD, Sugiura K, Sun M, Dartois E, De Pauw E, Dionnet Z, Djouadi Z, Falkenberg G, Fujita R, Fukuma T, Gearba IR, Hagiya K, Hu MY, Kato T, Kawamura T, Kimura M, Kubo MK, Langenhorst F, Lantz C, Lavina B, Lindner M, Zhao J, Vekemans B, Baklouti D, Bazi B, Borondics F, Nagasawa S, Nishiyama G, Nitta K, Mathurin J, Matsumoto T, Mitsukawa I, Miura H, Miyake A, Miyake Y, Yurimoto H, Okazaki R, Yabuta H, Naraoka H, Sakamoto K, Tachibana S, Connolly HC, Lauretta DS, Yoshitake M, Yoshikawa M, Yoshikawa K, Yoshihara K, Yokota Y, Yogata K, Yano H, Yamamoto Y, Yamamoto D, Yamada M, Yamada T, Yada T, Wada K, Usui T, Tsukizaki R, Terui F, Takeuchi H, Takei Y, Iwamae A, Soejima H, Shirai K, Shimaki Y, Senshu H, Sawada H, Saiki T, Ozaki M, Ono G, Okada T, Ogawa N, Ogawa K, Noguchi R, Noda H, Nishimura M, Namiki N, Nakazawa S, Morota T, Miyazaki A, Miura A, Mimasu Y, Matsumoto K, Kumagai K, Kouyama T, Kikuchi S, Kawahara K, Kameda S, Iwata T, Ishihara Y, Ishiguro M, Ikeda H, Hosoda S, Honda R, Honda C, Hitomi Y, Hirata N, Hirata N, Hayashi T, Hayakawa M, Hatakeda K, Furuya S, Fukai R, Fujii A, Cho Y, Arakawa M, Abe M, Watanabe S, Tsuda Y. Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples. Science 2023; 379:eabn8671. [PMID: 36137011 DOI: 10.1126/science.abn8671] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Samples of the carbonaceous asteroid Ryugu were brought to Earth by the Hayabusa2 spacecraft. We analyzed 17 Ryugu samples measuring 1 to 8 millimeters. Carbon dioxide-bearing water inclusions are present within a pyrrhotite crystal, indicating that Ryugu's parent asteroid formed in the outer Solar System. The samples contain low abundances of materials that formed at high temperatures, such as chondrules and calcium- and aluminum-rich inclusions. The samples are rich in phyllosilicates and carbonates, which formed through aqueous alteration reactions at low temperature, high pH, and water/rock ratios of <1 (by mass). Less altered fragments contain olivine, pyroxene, amorphous silicates, calcite, and phosphide. Numerical simulations, based on the mineralogical and physical properties of the samples, indicate that Ryugu's parent body formed ~2 million years after the beginning of Solar System formation.
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Affiliation(s)
- T Nakamura
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Matsumoto
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - K Amano
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Y Enokido
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M E Zolensky
- NASA Johnson Space Center; Houston, TX 77058, USA
| | - T Mikouchi
- The University Museum, The University of Tokyo, Tokyo 113-0033, Japan
| | - H Genda
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - M Y Zolotov
- School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA
| | - K Kurosawa
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - S Wakita
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - R Hyodo
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Nagano
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - D Nakashima
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Y Takahashi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Isotope Science Center, The University of Tokyo, Tokyo 113-0032, Japan
| | - Y Fujioka
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Kikuiri
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - E Kagawa
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Matsuoka
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon 92195 France.,Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8567, Japan
| | - A J Brearley
- Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - A Tsuchiyama
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan.,Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China.,Center for Excellence in Deep Earth Science, CAS, Guangzhou 510640, China
| | - M Uesugi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - J Matsuno
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Y Kimura
- Institute of Low Temperature Science, Hokkaido University, Sapporo 060-0819, Japan
| | - M Sato
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R E Milliken
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - E Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, Tenerife 38205, Spain
| | - S Sugita
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Hiroi
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - K Kitazato
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - D Brownlee
- Department of Astronomy, University of Washington, Seattle, WA 98195 USA
| | - D J Joswiak
- Department of Astronomy, University of Washington, Seattle, WA 98195 USA
| | - M Takahashi
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - K Ninomiya
- Institute for Radiation Sciences, Osaka University, Toyonaka 560-0043, Japan
| | - T Takahashi
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan.,Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Osawa
- Materials Sciences Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Terada
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - F E Brenker
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - B J Tkalcec
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - L Vincze
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - R Brunetto
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - A Aléon-Toppani
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - Q H S Chan
- Department of Earth Sciences, Royal Holloway, University of London, Egham TW20 0EX, UK
| | - M Roskosz
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - J-C Viennet
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - P Beck
- Institut de Planétologie et d'Astrophysique de Grenoble, CNRS, Université Grenoble Alpes, 38000 Grenoble, France
| | - E E Alp
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T Michikami
- Faculty of Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - Y Nagaashi
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan.,Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - T Tsuji
- Department of Earth Resources Engineering, Kyushu University, Fukuoka 819-0395, Japan.,School of Engineering, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Ino
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Kwansei Gakuin University, Sanda 669-1330, Japan
| | - J Martinez
- NASA Johnson Space Center; Houston, TX 77058, USA
| | - J Han
- Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, USA
| | - A Dolocan
- Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - R J Bodnar
- Department of Geoscience, Virginia Tech, Blacksburg, VA 24061, USA
| | - M Tanaka
- Materials Analysis Station, National Institute for Materials Science, Tsukuba 305-0047, Japan
| | - H Yoshida
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Sugiyama
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - A J King
- Department of Earth Science, Natural History Museum, London SW7 5BD, UK
| | - K Fukushi
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - H Suga
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - S Yamashita
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - T Kawai
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Inoue
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - A Nakato
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Noguchi
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan.,Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - F Vilas
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - A R Hendrix
- Planetary Science Institute, Tucson, AZ 85719, USA
| | | | - D L Domingue
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - G Dominguez
- Department of Physics, California State University, San Marcos, CA 92096, USA
| | - Z Gainsforth
- Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA
| | - C Engrand
- Laboratoire de Physique des 2 Infinis Irène Joliot-Curie, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - J Duprat
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - S S Russell
- Department of Earth Science, Natural History Museum, London SW7 5BD, UK
| | - E Bonato
- Institute for Planetary Research, Deutsches Zentrum für Luftund Raumfahrt, Rutherfordstraße 2 12489 Berlin, Germany
| | - C Ma
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena CA 91125, USA
| | - T Kawamoto
- Department of Geosciences, Shizuoka University, Shizuoka 422-8529, Japan
| | - T Wada
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - S Watanabe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan
| | - R Endo
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - S Enju
- Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
| | - L Riu
- European Space Astronomy Centre, 28692 Villanueva de la Cañada, Spain
| | - S Rubino
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - P Tack
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - S Takeshita
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan
| | - Y Takeichi
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan.,Department of Applied Physics, Osaka University, Suita 565-0871, Japan
| | - A Takeuchi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - A Takigawa
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - D Takir
- NASA Johnson Space Center; Houston, TX 77058, USA
| | | | - A Taniguchi
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori 590-0494, Japan
| | - K Tsukamoto
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - T Yagi
- National Metrology Institute of Japan, AIST, Tsukuba 305-8565, Japan
| | - S Yamada
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - K Yamamoto
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - Y Yamashita
- National Metrology Institute of Japan, AIST, Tsukuba 305-8565, Japan
| | - M Yasutake
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - K Uesugi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - I Umegaki
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan.,Toyota Central Research and Development Laboratories, Nagakute 480-1192, Japan
| | - I Chiu
- Institute for Radiation Sciences, Osaka University, Toyonaka 560-0043, Japan
| | - T Ishizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Okumura
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - E Palomba
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome 00133, Italy
| | - C Pilorget
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France.,Institut Universitaire de France, Paris, France
| | - S M Potin
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon 92195 France.,Faculty of Aerospace Engineering, Delft University of Technology, Delft, Netherlands
| | - A Alasli
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - S Anada
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - Y Araki
- Department of Physical Sciences, Ritsumeikan University, Shiga 525-0058, Japan
| | - N Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - C Schultz
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - O Sekizawa
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - S D Sitzman
- Physical Sciences Laboratory, The Aerospace Corporation, CA 90245, USA
| | - K Sugiura
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - M Sun
- Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China.,Center for Excellence in Deep Earth Science, CAS, Guangzhou 510640, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - E Dartois
- Institut des Sciences Moléculaires d'Orsay, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - E De Pauw
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - Z Dionnet
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - Z Djouadi
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - G Falkenberg
- Deutsches Elektronen-Synchrotron Photon Science, 22603 Hamburg, Germany
| | - R Fujita
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - T Fukuma
- Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
| | - I R Gearba
- Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - K Hagiya
- Graduate School of Life Science, University of Hyogo, Hyogo 678-1297, Japan
| | - M Y Hu
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T Kato
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - T Kawamura
- Institut de Physique du Globe de Paris, Université de Paris, Paris 75205, France
| | - M Kimura
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - M K Kubo
- Division of Natural Sciences, International Christian University, Mitaka 181-8585, Japan
| | - F Langenhorst
- Institute of Geosciences, Friedrich-Schiller-Universität Jena, 07745 Jena, Germany
| | - C Lantz
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - B Lavina
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA
| | - M Lindner
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - J Zhao
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - B Vekemans
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - D Baklouti
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - B Bazi
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - F Borondics
- Optimized Light Source of Intermediate Energy to LURE (SOLEIL) L'Orme des Merisiers, Gif sur Yvette F-91192, France
| | - S Nagasawa
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan.,Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - G Nishiyama
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Nitta
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - J Mathurin
- Institut Chimie Physique, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - T Matsumoto
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - I Mitsukawa
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - H Miura
- Graduate School of Science, Nagoya City University, Nagoya 467-8501, Japan
| | - A Miyake
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - Y Miyake
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan
| | - H Yurimoto
- Department of Natural History Sciences, Hokkaido University, Sapporo 060-0810, Japan
| | - R Okazaki
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - H Yabuta
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - H Naraoka
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - K Sakamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Tachibana
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - H C Connolly
- Department of Geology, Rowan University, Glassboro, NJ 08028, USA
| | - D S Lauretta
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA
| | - M Yoshitake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - K Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K Yoshihara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Yogata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - D Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Yamada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Yada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Usui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F Terui
- Department of Mechanical Engineering, Kanagawa Institute of Technology, Atsugi 243-0292, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Iwamae
- Marine Works Japan, Yokosuka 237-0063, Japan
| | - H Soejima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - K Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - G Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - N Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Noguchi
- Faculty of Science, Niigata University, Niigata 950-2181, Japan
| | - H Noda
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - M Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Namiki
- Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - A Miyazaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Matsumoto
- Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Kumagai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - T Kouyama
- Digital Architecture Research Center, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - S Kikuchi
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Kawahara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Kameda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Ishihara
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - M Ishiguro
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - H Ikeda
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan.,Center for Data Science, Ehime University, Matsuyama 790-8577, Japan
| | - C Honda
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Hitomi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - N Hirata
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Hayashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Hatakeda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - S Furuya
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Fukai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - S Watanabe
- Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
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8
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Yamada M, Matsuoka K, Sato M, Sato K. Recent Advances in Localized Immunomodulation Technology: Application of NIR-PIT toward Clinical Control of the Local Immune System. Pharmaceutics 2023; 15:pharmaceutics15020561. [PMID: 36839882 PMCID: PMC9967863 DOI: 10.3390/pharmaceutics15020561] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/27/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023] Open
Abstract
Current immunotherapies aim to modulate the balance among different immune cell populations, thereby controlling immune reactions. However, they often cause immune overactivation or over-suppression, which makes them difficult to control. Thus, it would be ideal to manipulate immune cells at a local site without disturbing homeostasis elsewhere in the body. Recent technological developments have enabled the selective targeting of cells and tissues in the body. Photo-targeted specific cell therapy has recently emerged among these. Near-infrared photoimmunotherapy (NIR-PIT) has surfaced as a new modality for cancer treatment, which combines antibodies and a photoabsorber, IR700DX. NIR-PIT is in testing as an international phase III clinical trial for locoregional recurrent head and neck squamous cell carcinoma (HNSCC) patients (LUZERA-301, NCT03769506), with a fast-track designation by the United States Food and Drug Administration (US-FDA). In Japan, NIR-PIT for patients with recurrent head and neck cancer was conditionally approved in 2020. Although NIR-PIT is commonly used for cancer therapy, it could also be exploited to locally eliminate certain immune cells with antibodies for a specific immune cell marker. This strategy can be utilized for anti-allergic therapy. Herein, we discuss the recent technological advances in local immunomodulation technology. We introduce immunomodulation technology with NIR-PIT and demonstrate an example of the knockdown of regulatory T cells (Tregs) to enhance local anti-tumor immune reactions.
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Affiliation(s)
- Mizuki Yamada
- Division of Host Defense Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya 461-8673, Japan
| | - Kohei Matsuoka
- Division of Host Defense Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya 461-8673, Japan
| | - Mitsuo Sato
- Division of Host Defense Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya 461-8673, Japan
| | - Kazuhide Sato
- B3 Unit Frontier, Advanced Analytical and Diagnostic Imaging Center (AADIC)/Medical Engineering Unit (MEU), Nagoya University Institute for Advanced Research, Nagoya 466-8550, Japan
- FOREST-Souhatsu, CREST, JST, Tokyo 102-0076, Japan
- Graduate School of Medicine, Nagoya University, Nagoya 466-8550, Japan
- Correspondence: ; Tel.: +81-052-744-2167; Fax: +81-052-744-2176
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9
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Yanagiba Y, Takeda T, Yamano S, Amamoto T, Yamada M, Kubota H, Suzuki M, Saito M, Umeda Y, Wang RS, Koda S. P19-05 Challenges in developing a novel accelerated silicosis rat model by single intratracheal instillation of high-purity crystalline silica particles. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.654] [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: 10/14/2022]
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10
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Gam H, Funaki A, Matsuda T, Ishikawa A, Yamada M, Kamemoto K, Ogata H, Ikegami N, Nishikawa Y, Sakamaki-Sunaga M. The Effect Of Using Oral Contraceptives On Muscle Damage And Inflammation Markers After Eccentric Exercise. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000881712.38468.0b] [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: 11/21/2022]
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11
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Matsuda T, Ishikawa A, Kanno M, Gam H, Funaki A, Ikegami N, Ogata H, Yamada M, Sakamaki-Sunaga M. Effect Of Co-ingestion Of Carbohydrate With Milk Post-exercise In Women By Menstrual Cycle Phase. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000881308.91221.65] [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: 11/21/2022]
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12
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Ishikawa A, Matsuda T, Gam H, Ikegami N, Kannno M, Yamada M, Funaki A, Ogata H, Kamemoto K, Sakamaki-Sunaga M. Ingestion Of Green Tea Extract In The Luteal Phase Improves Fat Oxidation During Exercise. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000881304.52251.4a] [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: 11/21/2022]
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13
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Funaki A, Gam H, Matsuda T, Ishikawa A, Yamada M, Ikegami N, Nishikawa Y, Ogata H, Kamemoto K, Sakamaki-Sunaga M. Influence Of The Menstrual Cycle On Muscle Damage Marker And Leukocyte Reaction Following Eccentric Exercise. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000881708.69183.97] [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: 11/21/2022]
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14
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Yamada M, Ikegami N, Gam H, Nishikawa Y, Ishikawa A, Funaki A, Kamemoto K, Matsuda T, Ogata H, Tanaka H, Yamazaki H, Sakamaki-Sunaga M. Effects Of Acute Aerobic Exercise On The Lipid Profiles In Transgender Men. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000881300.61304.61] [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: 11/21/2022]
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15
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Yamada M, Ishikawa A, Muramatsu S, Furuishi T, Onuki Y, Fukuzawa K, Yonemochi E. Study of Orally Disintegrating Tablets Using Erythritol as an Excipient Produced by Moisture-Activated Dry Granulation (MADG). Pharmaceuticals (Basel) 2022; 15:ph15081004. [PMID: 36015152 PMCID: PMC9415806 DOI: 10.3390/ph15081004] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 11/16/2022] Open
Abstract
Moisture-activated dry granulation (MADG) is an eco-friendly granulation method that uses a small amount of water and insoluble excipients to absorb moisture. MADG is expected to improve productivity and reduce costs. Erythritol, an excipient used for preparing orally disintegrating tablets (ODTs), has poor tabletability and is difficult to form into tablets by conventional methods, such as high-shear granulation (HSG) and direct compression. In this study, we optimized the manufacturing conditions for ODTs to improve the tabletability of erythritol using MADG. The disintegration time of tablets made using the MADG method was approximately one-tenth that of those made using the HSG method, and the hardness was approximately 1.4 times higher. Moreover, MADG could delay disintegration and improve tabletability. We further attempted to optimize the manufacturing conditions using MADG, particularly in terms of the amount of water used. The disintegration time increased as the amount of added water increased. Moreover, water absorption tests revealed that capillary wetting decreased as the amount of water added increased, but the initial wetting did not change. These results suggested that the disintegration time was prolonged because of the increase in granule density and decrease in capillary wetting with the increase in the amount of added water. The hardness of the tablets increased because of the easy deformation of the granules after the addition of up to 3% water; however, when more than 3% water was added, the hardness decreased because of the aggregation of the granules with the excess water. Finally, two-dimensional maps of the effect of the amount of added water and water activity indicated that tablets with a hardness of ≥80 N and a disintegration time of ≤15 s could be produced by adjusting the amount of added water to within the range of 2.2–3.3% and water activity to 0.3–0.53. These results indicate that MADG can improve the tabletability of erythritol and be used for the granulation of ODTs. Tablets with appropriate hardness and disintegration properties can be produced by adjusting the water content to approximately 2.7% and the water activity to approximately 0.4 when producing ODTs with MADG.
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Affiliation(s)
- Mizuki Yamada
- Department of Physical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku 142-8501, Tokyo, Japan
| | - Agata Ishikawa
- Department of Physical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku 142-8501, Tokyo, Japan
| | - Shun Muramatsu
- Department of Physical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku 142-8501, Tokyo, Japan
| | - Takayuki Furuishi
- Department of Physical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku 142-8501, Tokyo, Japan
- Correspondence: (T.F.); (E.Y.)
| | - Yoshinori Onuki
- Laboratory of Pharmaceutical Technology, School of Pharmacy and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama-shi 930-0194, Toyama, Japan
| | - Kaori Fukuzawa
- Department of Physical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku 142-8501, Tokyo, Japan
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita 565-0871, Osaka, Japan
| | - Etsuo Yonemochi
- Department of Physical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku 142-8501, Tokyo, Japan
- Correspondence: (T.F.); (E.Y.)
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Matsuda T, Takahashi H, Nakamura M, Kanno M, Ogata H, Ishikawa A, Yamada M, Kamemoto K, Sakamaki-Sunaga M. Influence of menstrual cycle on muscle glycogen utilization during high-intensity intermittent exercise until exhaustion in healthy women. Appl Physiol Nutr Metab 2022; 47:671-680. [PMID: 35856390 DOI: 10.1139/apnm-2021-0532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 11/22/2022]
Abstract
The present study investigated the effects of the menstrual cycle on muscle glycogen and circulating substrates during high-intensity intermittent exercise until exhaustion in healthy women who habitually exercised. In total, 11 women with regular menstrual cycles completed three tests, which comprised the early follicular phase (E-FP), late follicular phase (L-FP), and luteal phase (LP) of the menstrual cycle. High-intensity intermittent exercise until exhaustion was performed on each test day. Evaluation of muscle glycogen concentration by 13C-magnetic resonance spectroscopy and measurement of estradiol, progesterone, blood glucose, lactate, free fatty acids (FFA), and insulin concentrations were conducted before exercise (Pre) and immediately after exercise (Post). Muscle glycogen concentrations from thigh muscles at Pre and Post were not significantly different between menstrual cycle phases (P = 0.57). Muscle glycogen decreases by exercise were significantly greater in L-FP (59.0 ± 12.4 mM) than in E-FP (48.3 ± 14.4 mM, P < 0.05). Nonetheless, blood glucose, blood lactate, serum FFA, serum insulin concentrations, and exercise time until exhaustion in E-FP, L-FP, and LP were similar. The study results suggest that although exercise time does not change according to the menstrual cycle, the menstrual cycle influences muscle glycogen utilization during high-intensity intermittent exercise until exhaustion in women with habitual exercise activity. Novelty: This study compared changes in muscle glycogen concentration across the menstrual cycle during high-intensity intermittent exercise until exhaustion using 13C-magnetic resonance spectroscopy. Our results highlight the influence of the menstrual cycle on muscle glycogen during high-intensity intermittent exercise in healthy women.
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Affiliation(s)
- Tomoka Matsuda
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Hideyuki Takahashi
- Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, Japan
| | - Mariko Nakamura
- Department of Sport Science, Japan Institute of Sports Sciences, Tokyo, Japan
| | - Moe Kanno
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Hazuki Ogata
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
| | - Akira Ishikawa
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Mizuki Yamada
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
| | - Kayoko Kamemoto
- Waseda Institute for Sport Sciences, Waseda University, Saitama, Japan
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17
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Matsuda T, Ishikawa A, Kanno M, Ogata H, Gam H, Funaki A, Ikegami N, Yamada M, Sakamaki-Sunaga M. The Effect of Co-Ingestion of Carbohydrate with Milk after Exercise in Healthy Women: Study Considering the Menstrual Cycle. J Sports Sci Med 2022; 21:191-199. [PMID: 35719237 PMCID: PMC9157526 DOI: 10.52082/jssm.2022.191] [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: 12/20/2021] [Accepted: 03/22/2022] [Indexed: 06/15/2023]
Abstract
This study aimed to assess the effects of co-ingestion of carbohydrate with milk (MILK) and isocaloric carbohydrate beverage (CHO) on post-exercise recovery and subsequent exercise capacity, considering the menstrual cycle. This study included 12 women with regular menstrual cycles who completed four test days, which started with glycogen-depleting exercise using a cycle ergometer in the early follicular phase (EF) and late follicular phase (LF), followed by 240 min of recovery from the ingestion of 200 mL of CHO or MILK every 30 min immediately after the exercise (POST0) until 210 min post-exercise. After 240 min, participants performed an exercise capacity test. Blood samples and breathing gas samples were collected before the exercise (PRE), POST0, and 120 (POST120) and 240 min after the end of exercise (POST240) to determine the concentrations of estradiol, progesterone, blood glucose, blood lactate, free fatty acid (FFA), and insulin and the respiratory exchange ratio, fat oxidation, and carbohydrate oxidation. The exercise time at exercise capacity test was not significantly different in terms of menstrual cycle phases and recovery beverages ingested. However, there was a significant positive correlation between the exercise capacity test and area under the curve (AUC) of FFA concentrations from POST0 to POST240 in each group (EF + CHO, p < 0.05; LF + CHO, p < 0.05; EF + MILK, p < 0.01; and LF + MILK, p < 0.05). The AUC of FFA from POST120 to POST240 showed no difference between EF (CHO and MILK) and LF (CHO and MILK). However, the AUC of FFA concentrations from POST120 to POST240 was significantly greater in MILK (EF and LF) than that in CHO (EF and LF) (p < 0.05). In active women, circulating substrates and hormone concentrations during short recovery post-exercise are not affected by the menstrual cycle. However, MILK may affect circulating substrates during recovery and the exercise capacity after recovery.
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Affiliation(s)
- Tomoka Matsuda
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
- Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Akira Ishikawa
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Moe Kanno
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Hazuki Ogata
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
| | - Hyunjun Gam
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Akiko Funaki
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
- Depertment of Judo Therapy, Teikyo University of Science, Yamanashi, Japan
| | - Nodoka Ikegami
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
| | - Mizuki Yamada
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
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18
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Wakabayashi H, Kishima M, Itoda M, Fujishima I, Kunieda K, Ohno T, Shigematsu T, Oshima F, Mori T, Ogawa N, Nishioka S, Momosaki R, Yamada M, Ogawa S. Prevalence of Hoarseness and Its Association with Severity of Dysphagia in Patients with Sarcopenic Dysphagia. J Nutr Health Aging 2022; 26:266-271. [PMID: 35297470 PMCID: PMC8883003 DOI: 10.1007/s12603-022-1754-3] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/15/2022] [Indexed: 10/29/2022]
Abstract
OBJECTIVES To investigate the prevalence of hoarseness and its association with the severity of dysphagia in patients with sarcopenic dysphagia. DESIGN Cross-sectional study using the Japanese sarcopenic dysphagia database. SETTING 19 hospitals including 9 acute care hospitals, 8 rehabilitation hospitals, 2 long-term care hospitals, and 1 home visit rehabilitation team. PARTICIPANTS 287 patients with sarcopenic dysphagia, aged 20 years and older. MEASUREMENTS Sarcopenic dysphagia was diagnosed using a reliable and validated diagnostic algorithm for the condition. The presence and characteristics of hoarseness classified as breathy, rough, asthenic, and strained were assessed. The prevalence of hoarseness and the relationship between hoarseness and Food Intake LEVEL Scale (FILS) were examined. Order logistic regression analysis adjusted for age, sex, naso-gastric tube, and handgrip strength was used to examine the relationship between hoarseness and FILS at baseline and at follow-up. RESULTS The mean age was 83 ± 10 years. Seventy-four (26%) patients had hoarseness, while 32 (11%), 20 (7%), 22 (8%), and 0 (0%) patients had breathy, rough, asthenic, and strained hoarseness, respectively. Median FILS at the initial evaluation was 7 (interquartile range, 5-8). Hoarseness (β=0.747, 95% confidence intervals= 0.229, 1.265, p=0.005), age, sex, naso-gastric tube, and handgrip strength were associated independently with baseline FILS, while hoarseness (β=0.213, 95% confidence intervals= -0.324, 0.750, p=0.438) was not associated independently with the FILS at follow-up. CONCLUSIONS Hoarseness was associated with the severity of dysphagia at baseline, however not a prognostic factor for sarcopenic dysphagia. Resistance training of swallowing and respiratory muscles and voice training as part of rehabilitation nutrition might be useful for treating sarcopenic dysphagia.
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Affiliation(s)
- H Wakabayashi
- Hidetaka Wakabayashi, MD, PhD, Department of Rehabilitation Medicine, Tokyo Women's Medical University Hospital, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, Japan. Code; 162-0054, Tel: +81-3-3353-8111, Fax: +81-3-5269-7639, E-mail:
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19
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Yamada M, Tanaka S, Miyazaki T, Aida M. Expression of the auxin biosynthetic genes YUCCA1 and YUCCA4 is dependent on the boundary regulators CUP-SHAPED COTYLEDON genes in the Arabidopsis thaliana embryo. Plant Biotechnol (Tokyo) 2022; 39:37-42. [PMID: 35800963 PMCID: PMC9200086 DOI: 10.5511/plantbiotechnology.21.0924a] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 09/24/2021] [Indexed: 06/15/2023]
Abstract
During embryogenesis of eudicots, the apical region of the embryo develops two cotyledon primordia and the shoot meristem. In Arabidopsis thaliana, this process is dependent on the functionally redundant activities of the CUP-SHAPED COTYLEDON (CUC) transcription factors, namely CUC1, CUC2, and CUC3, as well as the phytohormone auxin. However, the relationship between the CUC proteins and auxin has yet to be fully elucidated. In the present study, we examined whether the expression of auxin biosynthetic genes is dependent on CUC gene activities. Comprehensive quantitative RT-PCR analysis of the main auxin biosynthetic gene families of TRYPTOPHAN AMINOTRANSFERASE OF ARABIDOPSIS1/TRYPTOPHAN AMINOTRANSFERASE RELATED and YUCCA (YUC) showed that YUC1 and YUC4 expression levels were lower in cuc double mutant embryos than the expression levels of these genes in wild type embryos. Reporter analysis also revealed that the expression of YUC1 and YUC4 in the cotyledon boundary region was reduced in cuc double mutant embryos. In contrast, the loss of function mutation in the SHOOT MERISTEMLESS gene, a shoot stem cell regulator that acts downstream of the CUC genes, did not markedly affect YUC1 expression levels. These results demonstrate that CUC genes play an important role in the regulation of auxin biosynthetic gene expression during embryogenesis; furthermore, they raise the possibility that the auxin produced by this regulation contributes to cotyledon boundary development.
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Affiliation(s)
- Mizuki Yamada
- International Research Organization for Advanced Science and Technology (IROAST), Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Shunsuke Tanaka
- Faculty of Science, Kumamoto University, 2-39-1 Kurokami, Chuoku, Kumamoto 860-8555, Japan
| | - Tatsuya Miyazaki
- Faculty of Science, Kumamoto University, 2-39-1 Kurokami, Chuoku, Kumamoto 860-8555, Japan
| | - Mitsuhiro Aida
- International Research Organization for Advanced Science and Technology (IROAST), Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
- International Research Center for Agricultural and Environmental Biology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
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20
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Tachibana S, Sawada H, Okazaki R, Takano Y, Sakamoto K, Miura YN, Okamoto C, Yano H, Yamanouchi S, Michel P, Zhang Y, Schwartz S, Thuillet F, Yurimoto H, Nakamura T, Noguchi T, Yabuta H, Naraoka H, Tsuchiyama A, Imae N, Kurosawa K, Nakamura AM, Ogawa K, Sugita S, Morota T, Honda R, Kameda S, Tatsumi E, Cho Y, Yoshioka K, Yokota Y, Hayakawa M, Matsuoka M, Sakatani N, Yamada M, Kouyama T, Suzuki H, Honda C, Yoshimitsu T, Kubota T, Demura H, Yada T, Nishimura M, Yogata K, Nakato A, Yoshitake M, Suzuki AI, Furuya S, Hatakeda K, Miyazaki A, Kumagai K, Okada T, Abe M, Usui T, Ireland TR, Fujimoto M, Yamada T, Arakawa M, Connolly HC, Fujii A, Hasegawa S, Hirata N, Hirata N, Hirose C, Hosoda S, Iijima Y, Ikeda H, Ishiguro M, Ishihara Y, Iwata T, Kikuchi S, Kitazato K, Lauretta DS, Libourel G, Marty B, Matsumoto K, Michikami T, Mimasu Y, Miura A, Mori O, Nakamura-Messenger K, Namiki N, Nguyen AN, Nittler LR, Noda H, Noguchi R, Ogawa N, Ono G, Ozaki M, Senshu H, Shimada T, Shimaki Y, Shirai K, Soldini S, Takahashi T, Takei Y, Takeuchi H, Tsukizaki R, Wada K, Yamamoto Y, Yoshikawa K, Yumoto K, Zolensky ME, Nakazawa S, Terui F, Tanaka S, Saiki T, Yoshikawa M, Watanabe S, Tsuda Y. Pebbles and sand on asteroid (162173) Ryugu: In situ observation and particles returned to Earth. Science 2022; 375:1011-1016. [PMID: 35143255 DOI: 10.1126/science.abj8624] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The Hayabusa2 spacecraft investigated the C-type (carbonaceous) asteroid (162173) Ryugu. The mission performed two landing operations to collect samples of surface and subsurface material, the latter exposed by an artificial impact. We present images of the second touchdown site, finding that ejecta from the impact crater was present at the sample location. Surface pebbles at both landing sites show morphological variations ranging from rugged to smooth, similar to Ryugu's boulders, and shapes from quasi-spherical to flattened. The samples were returned to Earth on 6 December 2020. We describe the morphology of >5 grams of returned pebbles and sand. Their diverse color, shape, and structure are consistent with the observed materials of Ryugu; we conclude that they are a representative sample of the asteroid.
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Affiliation(s)
- S Tachibana
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Okazaki
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan
| | - Y Takano
- Biogeochemistry Research Center, Japan Agency for Marine-Earth Science and Technology, Kanagawa 237-0061, Japan
| | - K Sakamoto
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y N Miura
- Earthquake Research Institute, The University of Tokyo, Tokyo 113-0032, Japan
| | - C Okamoto
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Yamanouchi
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan
| | - P Michel
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France
| | - Y Zhang
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France
| | - S Schwartz
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85705, USA.,Planetary Science Institute, Tucson, AZ 85719, USA
| | - F Thuillet
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France
| | - H Yurimoto
- Department of Earth and Planetary Sciences, Hokkaido University, Sapporo 060-0810, Japan
| | - T Nakamura
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - T Noguchi
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan.,Division of Earth and Planetary Sciences, Kyoto University, Kyoto, Japan
| | - H Yabuta
- Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - H Naraoka
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan
| | - A Tsuchiyama
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan.,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - N Imae
- Polar Science Resources Center, National Institute of Polar Research, Tokyo 190-8518, Japan
| | - K Kurosawa
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - A M Nakamura
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - K Ogawa
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - S Sugita
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Morota
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - S Kameda
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - E Tatsumi
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, E-38205 Tenerife, Spain
| | - Y Cho
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Yoshioka
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Matsuoka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Sakatani
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Kouyama
- Information Technology and Human Factors, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - H Suzuki
- Department of Physics, Meiji University, Kawasaki 214-8571, Japan
| | - C Honda
- Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Yoshimitsu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Kubota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Demura
- Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Yada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Yogata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Nakato
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshitake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A I Suzuki
- Marine Works Japan Ltd., Yokosuka 237-0063, Japan.,Department of Economics, Toyo University, Tokyo 112-8606, Japan
| | - S Furuya
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Hatakeda
- Marine Works Japan Ltd., Yokosuka 237-0063, Japan
| | - A Miyazaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Kumagai
- Marine Works Japan Ltd., Yokosuka 237-0063, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Usui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T R Ireland
- School of Earth and Environmental Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - M Fujimoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Yamada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H C Connolly
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85705, USA.,Department of Geology, Rowan University, Glassboro, NJ 08028, USA
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Hasegawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Hirata
- Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - C Hirose
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Iijima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Ikeda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Ishiguro
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - Y Ishihara
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - S Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - K Kitazato
- Aizu Research Center for Space Informatics, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - D S Lauretta
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85705, USA
| | - G Libourel
- Université Côte d'Azur, Observatoire de la Côte d'Azur, Centre national de la recherche scientifique, Laboratoire Lagrange, F-06304 Nice CEDEX 4, France
| | - B Marty
- Université de Lorraine, Centre national de la recherche scientifique, Centre de Recherches Pétrographiques et Géochimiques, F-54000 Nancy, France
| | - K Matsumoto
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Michikami
- Department of Mechanical Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - O Mori
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | | | - N Namiki
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - A N Nguyen
- NASA Johnson Space Center, Houston, TX 77058, USA
| | - L R Nittler
- Carnegie Institution for Science, Washington, DC 20015, USA
| | - H Noda
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - R Noguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Science, Niigata University, Niigata 950-2181, Japan
| | - N Ogawa
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - G Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - H Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Shimada
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Soldini
- Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool L69 3BX, UK
| | | | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - K Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K Yumoto
- UTokyo Organization for Planetary and Space Science-Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M E Zolensky
- NASA Johnson Space Center, Houston, TX 77058, USA
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F Terui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - S Watanabe
- Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Aeronautics and Astronautics, The University of Tokyo, Tokyo 113-0033, Japan
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21
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Yamada M, Masaki C, Mukaibo T, Munemasa T, Nodai T, Kondo Y, Hosokawa R. Altered Rheological Properties of Saliva with Aging in Mouse Sublingual Gland. J Dent Res 2022; 101:942-950. [PMID: 35238237 DOI: 10.1177/00220345221076071] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Mucin in saliva plays a critical role in the hydration and lubrication of the oral mucosa by retaining water molecules, and its impaired function may be associated with hyposalivation-independent xerostomia. Age-dependent effects on salivary gland function and rheological properties of secreted saliva are not fully understood as aging is a complex and multifactorial process. We aimed to evaluate age-related changes in the rheological properties of saliva and elucidate the underlying mechanism. We performed ex vivo submandibular gland (SMG) and sublingual gland (SLG) perfusion experiments to collect saliva from isolated glands of young (12 wk old) and aged (27 mo old) female C57BL/6J mice and investigate the rheological properties by determining the spinnbarkeit (viscoelasticity). While fluid secretion was comparable in SMG and SLG of both mice, spinnbarkeit showed a significant decrease in SLG saliva of aged mice than that of young mice. There were no significant differences in GalNAc concentration between young and aged SLG saliva. Liquid chromatography/tandem mass spectrometry analysis of SLG saliva revealed that (Hex)1 (HexNAc)1 (NeuAc)1 at m/z 793.31 was the most abundant O-glycan structure in SLG saliva commonly detected in both mice. Lectin staining of salivary gland tissue showed that SLG stained strongly with Maackia amurensis lectin II (MAL II) while Sambucus nigra agglutinin (SNA) stained little, if any, SLG. The messenger RNA expression of St3gal1 that encodes an α-2,3 sialic acid sialyltransferase SIAT4-A showed a decrease in SLG of aged mice, confirmed by a Western blot analysis. Lectin blot analysis in SLG saliva revealed that the relative signal intensity detected by MAL II was significantly lower in aged SLG. Our results suggest that spinnbarkeit decreases in SLG of aging mice due to downregulation of sialic acid linked to α-2,3 sialic acid sialyltransferase expression.
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Affiliation(s)
- M Yamada
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
| | - C Masaki
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
| | - T Mukaibo
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
| | - T Munemasa
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
| | - T Nodai
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
| | - Y Kondo
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
| | - R Hosokawa
- Division of Oral Reconstruction and Rehabilitation, Kyushu Dental University, Kitakyushu, Fukuoka, Japan
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22
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Muraki N, Yamada M, Doki H, Nakai R, Komeda K, Goto D, Kawabe N, Matsuoka K, Matsushima M, Kawabe T, Tanaka I, Morise M, Shay JW, Minna JD, Sato M. Resistance to mutant KRAS V12-induced senescence in a hTERT/Cdk4-immortalized normal human bronchial epithelial cell line. Exp Cell Res 2022; 414:113053. [PMID: 35149086 DOI: 10.1016/j.yexcr.2022.113053] [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: 10/12/2021] [Revised: 01/29/2022] [Accepted: 02/01/2022] [Indexed: 11/17/2022]
Abstract
Mutant KRAS, the most frequently occurring (∼30%) driver oncogene in lung adenocarcinoma, induces normal epithelial cells to undergo senescence. This phenomenon, called "oncogene-induced senescence (OIS)", prevents mutant KRAS-induced malignant transformation. We have previously reported that mutant KRASV12 induces OIS in a subset of normal human bronchial epithelial cell line immortalized with hTERT and Cdk4. Understanding the mechanism and efficacy of this important cancer prevention mechanism is a key knowledge gap. Therefore, this study investigates mutant KRASV12-induced OIS in upregulated telomerase combined with the p16/RB pathway inactivation in normal bronchial epithelial cells. The normal (non-transformed and non-tumorigenic) human bronchial epithelial cell line HBEC3 (also called "HBEC3KT"), immortalized with hTERT ("T") and Cdk4 ("K"), was used in this study. HBEC3 that expressed mutant KRASV12 in a doxycycline-regulated manner was established (designated as HBEC3-RIN2). Controlled induction of mutant KRASV12 expression induced partial epithelial-to-mesenchymal transition in HBEC3-RIN2 cells, which was associated with upregulated expression of ZEB1 and SNAIL. Mutant KRASV12 caused the majority of HBEC3-RIN2 to undergo morphological changes; suggestive of senescence, which was associated with enhanced autophagic flux, evaluated by LC-3 Western blot and CYTO-ID, an autophagosome-specific staining kit. Upon mutant KRASV12 expression, only a small HBEC3-RIN2 cell subset underwent senescence, as shown by a senescence-associated β-galactosidase staining (SA-βG) method. Furthermore, mutant KRASV12 enhanced cell growth, evaluated by colorimetric proliferation assay, and liquid and soft agar colony formation assays, partially through increased phosphorylated AKT and ERK expression but did not affect cell division, or cell cycle status. Intriguingly, mutant KRASV12 reduced p53 protein expression but increased p21 protein expression by prolonging its half-life. These results indicate that a hTERT/Cdk4 -immortalized normal bronchial epithelial cell line is partially resistant to mutant KRASV12-induced senescence. This suggests that OIS does not efficiently suppress KRASV12-induced transformation in the context of the simultaneous occurrence of telomerase upregulation and inactivation of the p16/Rb pathway.
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Affiliation(s)
- Nao Muraki
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Mizuki Yamada
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Hinako Doki
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Riho Nakai
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Kazuki Komeda
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan; Dept. of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Daiki Goto
- Dept. of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Nozomi Kawabe
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Kohei Matsuoka
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Miyoko Matsushima
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Tsutomu Kawabe
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan
| | - Ichidai Tanaka
- Dept. of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Masahiro Morise
- Dept. of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Jerry W Shay
- Dept. of Cell Biology and the Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - John D Minna
- Hamon Center for Therapeutic Oncology Research and the Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Mitsuo Sato
- Division of Host Defense Sciences, Dept. of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Japan.
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23
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Otobe Y, Kimura Y, Suzuki M, Koyama S, Kojima I, Yamada M. Factors Associated with Increased Caregiver Burden of Informal Caregivers during the COVID-19 Pandemic in Japan. J Nutr Health Aging 2022; 26:157-160. [PMID: 35166308 PMCID: PMC8783575 DOI: 10.1007/s12603-022-1730-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/07/2022] [Indexed: 11/29/2022]
Abstract
This study's objective was to explore the association between various factors and the increased caregiver burden of informal caregivers during the COVID-19 pandemic. On February, 2021, 700 informal caregivers completed an online survey. We assessed the change in caregiver burden during the COVID-19 pandemic. Among all caregiver participants, 287 (41.0%) complained of an increased caregiver burden due to the COVID-19 pandemic. The factors associated with increased caregiver burden were depressive symptoms in caregivers [odds ratio (OR), 2.20; 95% confidence interval (CI), 1.50-3.23], dementia (OR, 2.48; 95%CI, 1.07-5.73) and low Barthel Index scores (OR, 2.01; 95%CI, 1.39-2.90) in care receivers, care days (OR, 1.09; 95%CI, 1.01-1.17) and times (OR, 1.06; 95%CI, 1.01-1.10), and use of home care service (OR, 1.46; 95%CI, 1.01-2.10) and visiting care service (OR, 1.71; 95%CI, 1.20-2.45). These findings suggest we need to pay attention to the physical and mental health of both the care receivers and caregivers.
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Affiliation(s)
- Y Otobe
- Yuhei Otobe, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tokyo, Japan, 3-29-1 Otsuka, Bunkyo-ku, Tokyo, 112-0012, Japan, Tel: +81-29-853-2111, E-mail:
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24
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Mori T, Wakabayashi H, Kishima M, Itoda M, Fujishima I, Kunieda K, Ohno T, Shigematsu T, Oshima F, Ogawa N, Nishioka S, Momosaki R, Shimizu A, Saito Y, Yamada M, Ogawa S. Association between Inflammation and Functional Outcome in Patients with Sarcopenic Dysphagia. J Nutr Health Aging 2022; 26:400-406. [PMID: 35450997 DOI: 10.1007/s12603-022-1769-9] [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] [Indexed: 10/18/2022]
Abstract
OBJECTIVES This study aimed to investigate whether inflammation affects the outcome of swallowing ability to improve treatment for sarcopenic dysphagia. DESIGN A retrospective observational cohort study was performed using data from the Japanese sarcopenic dysphagia database. SETTING The database was constructed using data from 19 hospitals and one home visiting rehabilitation team. PARTICIPANTS Patients with sarcopenic dysphagia with measurements of C-reactive protein (CRP) and serum albumin (Alb) were included. MEASUREMENTS Patients were assigned to two groups using CRP, Alb, and the Japanese modified Glasgow Prognostic Score (mGPS). The Food Intake LEVEL Scale (FILS) was measured at the times of admission and follow-up (FILS follow-up) to assess swallowing function. RESULTS A total of 197 patients were included. Mean or median values of each parameter were as follows: age: 83.8±8.7, Alb: 3.2 ± 0.6 g/dL, CRP: 8.0 [3.0, 29.0] mg/L, mGPS: 1 [1-2], FILS: 7 [6-8], FILS follow-up: 8 [7-8], and duration of follow-up: 57.0 [27.0, 85.0] days. The FILS score at follow-up was significantly lower in the high CRP group (≥ 5.0 mg/L) than in the low CRP group (< 5.0 mg/L) (p = 0.01). Further, the FILS score at follow-up was significantly lower in the high mGPS group (class; 2) than in the low mGPS group (class; 0 and 1) (p = 0.03). In the multiple linear regression analyses without FILS at baseline, CRP and mGPS were independent risk factors for FILS follow-up. When FILS at baseline was entered, CRP and mGPS were not an independent risk factors for FILS follow-up. CONCLUSIONS Inflammation could modify the outcome of the patients with sarcopenic dysphagia. Inflammation may be an important risk factor in evaluating patients with sarcopenic dysphagia.
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Affiliation(s)
- T Mori
- Hidetaka Wakabayashi, MD, PhD, Department of Rehabilitation Medicine, Tokyo Women's Medical University Hospital, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, Japan. Code; 162-0054, Tel: +81-3-3353-8111, Fax: +81-3-5269-7639, E-mail:
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25
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Kamemoto K, Yamada M, Matsuda T, Ogata H, Ishikawa A, Kanno M, Miyashita M, Sakamaki-Sunaga M. Effects of menstrual cycle on appetite-regulating hormones and energy intake in response to cycling exercise in physically active women. J Appl Physiol (1985) 2021; 132:224-235. [PMID: 34882026 DOI: 10.1152/japplphysiol.01117.2020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 11/22/2022] Open
Abstract
Although ample evidence supports the notion that an acute bout of endurance exercise performed at or greater than 70% of maximum oxygen uptake suppresses appetite partly through changes in appetite-regulating hormones, no study has directly compared the influence between the phases of the menstrual cycle in women. The present study compared the effects of an acute bout of exercise on orexigenic hormone (acylated ghrelin) and anorexigenic hormones (peptide YY and cholecystokinin) between the early follicular phase (FP) and the mid luteal phase (LP) of the menstrual cycle in physically active women. Ten healthy women (age, 20.6 ± 0.7 years) completed two 3.5-h trials in each menstrual phase. In both trials, participants performed cycling exercises at 70% of heart rate reserve (at a corresponding intensity to 70% of maximum oxygen uptake) for 60 min followed by 90 min of rest. Following 90 min of rest, participants were provided with an ad libitum meal for a fixed duration of 30 min. Blood samples and subjective appetite were collected and assessed before, during, immediately post-, 45 min post-, and 90 min post-exercise. The exercise increased estradiol (327 %) and progesterone (681 %) in the LP more than the FP respectively (P < 0.001, f = 1.33; P < 0.001,f = 1.20). There were no between-trial differences in appetite-regulating hormones, subjective appetite, or energy intake of ad libitum meal. These findings indicate that exercise-induced increases in ovarian hormones in the LP may not influence appetite-regulating hormones in physically active women.
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Affiliation(s)
- Kayoko Kamemoto
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Mizuki Yamada
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
| | - Tomoka Matsuda
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Hazuki Ogata
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Akira Ishikawa
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Moe Kanno
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
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Suzuki R, Yamada M, Higaki T, Aida M, Kubo M, Tsai AYL, Sawa S. PUCHI Regulates Giant Cell Morphology During Root-Knot Nematode Infection in Arabidopsis thaliana. Front Plant Sci 2021; 12:755610. [PMID: 34691131 PMCID: PMC8527015 DOI: 10.3389/fpls.2021.755610] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
Parasitic root-knot nematodes transform the host's vascular cells into permanent feeding giant cells (GCs) to withdraw nutrients from the host plants. GCs are multinucleated metabolically active cells with distinctive cell wall structures; however, the genetic regulation of GC formation is largely unknown. In this study, the functions of the Arabidopsis thaliana transcription factor PUCHI during GC development were investigated. PUCHI expression was shown to be induced in early developing galls, suggesting the importance of the PUCHI gene in gall formation. Despite the puchi mutant not differing significantly from the wild type in nematode invasion and reproduction rates, puchi GC cell walls appeared to be thicker and lobate when compared to the wild type, while the cell membrane sometimes formed invaginations. In three-dimensional (3D) reconstructions of puchi GCs, they appeared to be more irregularly shaped than those in the wild type, with noticeable cell-surface protrusions and folds. Interestingly, the loss-of-function mutant of 3-KETOACYL-COA SYNTHASE 1 showed GC morphology and cell wall defects similar to those of the puchi mutant, suggesting that PUCHI may regulate GC development via very long chain fatty acid synthesis.
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Affiliation(s)
- Reira Suzuki
- Department of Biological Sciences, Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan
| | - Mizuki Yamada
- International Research Organization for Advanced Science and Technology, Kumamoto University, Kumamoto, Japan
| | - Takumi Higaki
- International Research Organization for Advanced Science and Technology, Kumamoto University, Kumamoto, Japan
- International Research Center for Agricultural and Environmental Biology, Kumamoto University, Kumamoto, Japan
| | - Mitsuhiro Aida
- International Research Organization for Advanced Science and Technology, Kumamoto University, Kumamoto, Japan
- International Research Center for Agricultural and Environmental Biology, Kumamoto University, Kumamoto, Japan
| | - Minoru Kubo
- Department of Biological Sciences, Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan
- Center for Digital Green-innovation, Nara Institute of Science and Technology, Nara, Japan
| | - Allen Yi-Lun Tsai
- Department of Biological Sciences, Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan
- International Research Center for Agricultural and Environmental Biology, Kumamoto University, Kumamoto, Japan
| | - Shinichiro Sawa
- Department of Biological Sciences, Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan
- International Research Center for Agricultural and Environmental Biology, Kumamoto University, Kumamoto, Japan
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Kamemoto K, Yamada M, Matsuda T, Ogata H, Tanaka N, Sakamaki-Sunaga M. Relationship between weight management and menstrual status in female athletes: a cross-sectional survey. Women Health 2021; 61:819-827. [PMID: 34517780 DOI: 10.1080/03630242.2021.1976356] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The aim of this study was to investigate the effects of weight management on menstrual status in female athletes. A total of 225 collegiate athletes and 27 para-athletes who belonged to teams affiliated with the Japanese Paralympic Committee were included in this cross-sectional survey. A self-reported questionnaire (containing information on the demographic characteristics, medical history, lifestyle habits, weight management, menstruation status, physical symptoms related to menstrual cycle, and the influence of physical symptoms experienced during the luteal phase of menstruation during training or competition.) was used to assess the results. In the collegiate athletes, the rate of regular menstrual cycle was significantly lower in those with weight loss than in those without (56.7% vs. 75.0%, P < .05). Furthermore, stress fractures were found significantly more often in those with weight loss than those without (36.1% vs. 20.3%, P < .05). In the para-athletes, 46.2% of experience in weight loss had irregular menstruations (P < .01), and all of them had physical symptoms that negatively affected their training or competition (P < .05). To prevent menstrual dysfunction related to energy deficiency in female athletes with weight management, menstrual status must be considered.
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Affiliation(s)
- Kayoko Kamemoto
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan.,Waseda Institute for Sport Sciences, Waseda University, Saitama, Japan
| | - Mizuki Yamada
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
| | - Tomoka Matsuda
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Hazuki Ogata
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Nobuyuki Tanaka
- Department of Health Science, Nippon Sport Science University, Tokyo, Japan
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Shiono Y, Matsuo H, Fujita H, Tanaka N, Ogasawara Y, Kawamura I, Katayama Y, Matsuo A, Kawase Y, Kakuta T, Takashima H, Yokoi H, Ohira H, Suwa S, Oguri M, Yamamoto F, Kubo T, Akasaka T, Shiono Y, Katayama Y, Hironori K, Kubo T, Akasaka T, Tanaka N, Yamashita J, Fujita H, Matsuo A, Matsuo H, Kawase Y, Kawamura I, Kakuta T, Hoshino M, Sugano T, Takashima H, Amano T, Yokoi H, Yamamoto Y, Nozaki Y, Machida M, Kobori M, Kikuchi T, Ohira H, Yoshino H, Ishiguro H, Wakabayashi Y, Kondo T, Terai H, Suwa T, Kimura T, Kawajiri T, Hirohata A, Uemura S, Neishi Y, Sakamoto T, Yamada M, Okeie K, Hishikari K, Oguri M, Uetani T, Saegusa T, Yamamoto F, Yamada M. Diagnostic Accuracy of Diastolic Fractional Flow Reserve for Functional Evaluation of Coronary Stenosis. JACC: Asia 2021; 1:230-241. [PMID: 36338166 PMCID: PMC9627917 DOI: 10.1016/j.jacasi.2021.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/28/2021] [Accepted: 07/08/2021] [Indexed: 01/10/2023]
Abstract
Background In the resting conditions, narrowing the window of coronary pressure measurements from the whole cardiac cycle to diastole improves diagnostic performance of coronary pressure–derived physiological index. However, whether this also applies to the hyperemic conditions has not yet been thoroughly evaluated. Objectives The purpose of this study was to assess whether diastolic fractional flow reserve (diastolic FFR) has better diagnostic performance in identifying ischemia-causing coronary lesions than conventional FFR in a prospective, multicenter, and independent core laboratory–based environment. Methods In this prospective multicenter registry at 29 Japanese centers, we compared the diagnostic performance of FFR, diastolic FFR, resting distal to aortic coronary pressure (Pd/Pa), and diastolic pressure ratio (dPR) using myocardial perfusion scintigraphy (MPS) as the reference standard in 378 patients with single-vessel coronary disease. Results Inducible myocardial ischemia was found on MPS in the relevant myocardial territory of the target vessel in 85 patients (22%). In the receiver-operating curve analyses, diastolic FFR had comparable area under the curve (AUC) compared with FFR (AUCdiastolic FFR: 0.66; 95% confidence interval [CI]: 0.58-0.73, vs AUCFFR: 0.66; 95% CI: 0.58-0.74, P = 0.624). FFR and diastolic FFR showed significantly larger AUCs than resting Pd/Pa (0.62; 95% CI: 0.54-0.70; P = 0.033 and P = 0.046) but did not show significantly larger AUCs than dPR (0.62; 95% CI: 0.55-0.70; P = 0.102 and P = 0.113). Conclusions Diastolic FFR showed a similar diagnostic performance to FFR as compared with MPS. This result reaffirms the use of FFR as the most accurate invasive physiological lesion assessment. (Diagnostic accuracy of diastolic fractional flow reserve (d-FFR) for functional evaluation of coronary stenosis; UMIN000015906)
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Ishikawa A, Matsuda T, Gam H, Kannno M, Yamada M, Ikegami N, Funaki A, Ogata H, Kamemoto K, Sakamaki-Sunaga M. Effect Of Menstrual Cycle On Fat Oxidation Of Green Tea Extract. Med Sci Sports Exerc 2021. [DOI: 10.1249/01.mss.0000762192.63094.16] [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: 11/21/2022]
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30
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Makizako H, Nishita Y, Jeong S, Otsuka R, Shimada H, Iijima K, Obuchi S, Kim H, Kitamura A, Ohara Y, Awata S, Yoshimura N, Yamada M, Toba K, Suzuki T. TRENDS IN THE PREVALENCE OF FRAILTY IN JAPAN: A META-ANALYSIS FROM THE ILSA-J. J Frailty Aging 2021; 10:211-218. [PMID: 34105703 DOI: 10.14283/jfa.2020.68] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To examine whether age-specific prevalence of frailty in Japan changed between 2012 and 2017. DESIGN This study performed meta-analyses of data collected from 2012 to 2017 using the Integrated Longitudinal Studies on Aging in Japan (ILSA-J), a collection of representative Japanese cohort studies. SETTING The ILSA-J studies were conducted on community-living older adults. PARTICIPANTS ILSA-J studies were considered eligible for analysis if they assessed physical frailty status and presence of frailty in the sample. Seven studies were analyzed for 2012 (±1 year; n = 10312) and eight studies were analyzed for 2017 (±1 year; n = 7010). Five studies were analyzed for both 2012 and 2017. MEASUREMENTS The study assessed the prevalence of frailty and frailty status according to 5 criteria: slowness, weakness, low activity, exhaustion, and weight loss. RESULTS The overall prevalence of physical frailty was 7.0% in 2012 and 5.3% in 2017. The prevalence of frailty, especially in people 70 years and older, tended to decrease in 2017 compared to 2012. Slight decreases were found in the prevalence of frailty subitems including weight loss, slowness, exhaustion, and low activity between 2012 and 2017, but change in the prevalence of weakness was weaker than other components. CONCLUSIONS The prevalence of physical frailty decreased from 2012 to 2017. There are age- and gender-related variations in the decrease of each component of frailty.
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Affiliation(s)
- H Makizako
- Hyuma Makizako, Department of Physical Therapy, Faculty of Medicine, School of Health Sciences, Kagoshima University, Kagoshima, Japan,
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Kasamatsu H, Chino T, Hasegawa T, Utsunomiya N, Utsunomiya A, Oyama N, Yamada M, Hasegawa M. 466 A calpain inhibitor ALLN alleviates bleomycin-induced skin fibrosis via antagonizing TGF-β/Smad signaling pathway. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.490] [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: 11/26/2022]
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Komoda M, Miyajima A, Koshino M, Akutsu S, Yamada M, Ozeki R, Makigami K. Case series of elderly patients with scabies topically applied with ivermectin via whole-body bathing. J Dermatol 2021; 48:559-563. [PMID: 33410137 DOI: 10.1111/1346-8138.15746] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 12/08/2020] [Accepted: 12/09/2020] [Indexed: 11/27/2022]
Abstract
As a novel method of ivermectin (IVM) administration for the treatment of scabies, we devised a whole-body bathing (WBB), in which patients are immersed in a fluid that contains IVM. A multi-institutional trial for elderly patients with scabies was conducted to investigate the efficacy and safety of IVM-WBB. Seven elderly patients with scabies were enrolled and received IVM-WBB up to four times at 1-week interval. The cure for scabies was defined as the absence of mites in two consecutive microscopic or dermoscopic examinations at weekly intervals and the absence of new skin lesions indicative of scabies. Consequently, the cure rate on day 22, the primary end-point, was 71.4%, and all patients had been cured until day 29. Additionally, neither significant adverse events nor clinically problematic abnormal blood test values were obtained. Furthermore, no IVM was detected in the optional plasma (five cases) collected for IVM measurement after bathing. These results suggest that IVM-WBB was effective to treat scabies, causing no serious adverse events and with a very low internal exposure of IVM.
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Affiliation(s)
- Masayo Komoda
- Department of Medical Safety, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan.,Center of Translational Research, Research Institute for Science and Technology, Tokyo University of Science, Noda, Japan
| | - Atsushi Miyajima
- Department of Biopharmaceutics, Meiji Pharmaceutical University, Tokyo, Japan.,Department of Biopharmaceutics, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan
| | - Machi Koshino
- Department of Medical Safety, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan
| | - Shunta Akutsu
- Department of Medical Safety, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan
| | - Mizuki Yamada
- Department of Medical Safety, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan
| | - Rie Ozeki
- Department of Medical Safety, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan
| | - Kuniko Makigami
- Tsubasa Home Care Clinic, Ohta, Japan.,Department of Rehabilitation, Ota Hospital, Higashikagawa, Japan
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Yamada M, Kimura Y, Ishiyama D, Otobe Y, Suzuki M, Koyama S, Kikuchi T, Kusumi H, Arai H. The Influence of the COVID-19 Pandemic on Physical Activity and New Incidence of Frailty among Initially Non-Frail Older Adults in Japan: A Follow-Up Online Survey. J Nutr Health Aging 2021; 25:751-756. [PMID: 34179929 PMCID: PMC8074704 DOI: 10.1007/s12603-021-1634-2] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 03/18/2020] [Indexed: 01/04/2023]
Abstract
OBJECTIVES The objective of this study was to investigate the influence of the COVID-19 pandemic on physical activity (PA) and the incidence of frailty among initially non-frail older adults in Japan. DESIGN A follow-up online survey. SETTING AND SUBJECTS Among the 1,600 baseline online survey participants, 388 adults were already frail, and 275 older adults did not respond to the follow-up survey. Thus, the final number of participants in this study was 937 (follow-up rate: 77.3%). METHODS We assessed the total PA time at four time points according to the COVID-19 waves in Japan: January 2020 (before the pandemic), April 2020 (during the first wave), August 2020 (during the second wave), and January 2021 (during the third wave). We then investigated the incidence of frailty during a one-year follow-up period (during the pandemic). RESULTS The total PA time during the first, second, and third waves of the pandemic decreased from the pre-pandemic PA time by 33.3%, 28.3%, and 40.0%, respectively. In particular, the total PA time of older adults who were living alone and socially inactive decreased significantly: 42.9% (first wave), 50.0% (second wave), and 61.9% (third wave) less than before the pandemic, respectively. Additionally, they were at a significantly higher risk of incident frailty than those who were not living alone and were socially active (adjusted odds ratio: 2.04 [95% confidence interval: 1.01-4.10]). CONCLUSION Our findings suggest that older adults who live alone and are socially inactive are more likely to experience incident frailty/disability due to decreased PA during the pandemic. Understanding this mechanism may be crucial for maintaining the health status of older adults.
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Affiliation(s)
- M Yamada
- Minoru Yamada, Faculty of Human Sciences, University of Tsukuba, 3-29-1 Otsuka, Bunkyo-ku, Tokyo 112-0012, Japan, Tel: +81-3-3942-6863, Fax: +81-3-3942-6895, E-mail address:
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Mori T, Wakabayashi H, Ogawa N, Fujishima I, Oshima F, Itoda M, Kunieda K, Shigematsu T, Nishioka S, Tohara H, Yamada M, Ogawa S. The Mass of Geniohyoid Muscle Is Associated with Maximum Tongue Pressure and Tongue Area in Patients with Sarcopenic Dysphagia. J Nutr Health Aging 2021; 25:356-360. [PMID: 33575728 DOI: 10.1007/s12603-020-1528-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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] [Indexed: 12/13/2022]
Abstract
OBJECTIVES We investigated the associations about the mass of geniohyoid and tongue muscle and the maximum tongue pressure in patients with sarcopenic dysphagia using ultrasonography. DESIGN Cross sectional study. SETTING 5 hospitals including 3 acute and 2 rehabilitation hospitals and 1 older facility. PARTICIPANTS 36 inpatients with sarcopenic dysphagia. MEASUREMENTS Ultrasonography was performed for geniohyoid muscle and tongue. The area for geniohyoid and tongue muscles in sagittal plane and the mean brightness level (0-255) in the muscle area were calculated. Maximum tongue pressure as strength of swallowing muscle were investigated. Partial correlation coefficient and multiple regression analysis adjusting for age and sex were performed. RESULTS The mean age was 81.1 ± 7.9. Men were 23. The mean BMI was 19.0 ± 4.1. The mean maximum tongue pressure was 21.3 ± 9.3 kPa. The mean cross sectional area for geniohyoid muscles was 140 ± 47 mm2. The mean brightness for geniohyoid muscle was 18.6 ± 9.0. The mean cross sectional area for tongue muscles was 1664.1 ± 386.0 mm2. The mean brightness for tongue muscles was 34.1 ± 10.6. There was a significant positive correlation between area of geniohyoid muscle and maximum tongue pressure (r = 0.38, p = 0.04). Geniohyoid muscle area was an explanatory factor for maximum tongue pressure (p = 0.012) and tongue muscle area (p = 0.031) in multivariate analysis. CONCLUSIONS Geniohyoid muscle mass was an independent explanatory factor for maximum tongue pressure and tongue muscle mass.
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Affiliation(s)
- T Mori
- Hidetaka Wakabayashi, MD, PhD, Dpt. of Rehabilitation Medicine, Tokyo Women's Medical University Hospital, Japan, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, Japan. Code; 162-0054, , Tel: +81-3-3353-8111, FAX: +81-3-5269-7639
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Ogura T, Nishioka N, Ueno S, Yamada M, Higuchi K. Gastrointestinal: Guidewire insertion under transluminal cholangioscopy guidance for a hepaticojejunostomy stricture resembling a pinhole. J Gastroenterol Hepatol 2020; 35:2029. [PMID: 32246861 DOI: 10.1111/jgh.15050] [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] [Received: 12/05/2019] [Accepted: 03/25/2020] [Indexed: 12/09/2022]
Affiliation(s)
- T Ogura
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - N Nishioka
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - S Ueno
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - M Yamada
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - K Higuchi
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
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Lee YJ, García Muñoz A, Imamura T, Yamada M, Satoh T, Yamazaki A, Watanabe S. Brightness modulations of our nearest terrestrial planet Venus reveal atmospheric super-rotation rather than surface features. Nat Commun 2020; 11:5720. [PMID: 33184258 PMCID: PMC7665209 DOI: 10.1038/s41467-020-19385-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 10/12/2020] [Indexed: 11/24/2022] Open
Abstract
Terrestrial exoplanets orbiting within or near their host stars’ habitable zone are potentially apt for life. It has been proposed that time-series measurements of reflected starlight from such planets will reveal their rotational period, main surface features and some atmospheric information. From imagery obtained with the Akatsuki spacecraft, here we show that Venus’ brightness at 283, 365, and 2020 nm is modulated by one or both of two periods of 3.7 and 4.6 days, and typical amplitudes <10% but occasional events of 20–40%. The modulations are unrelated to the solid-body rotation; they are caused by planetary-scale waves superimposed on the super-rotating winds. Here we propose that two modulation periods whose ratio of large-to-small values is not an integer number imply the existence of an atmosphere if detected at an exoplanet, but it remains ambiguous whether the atmosphere is optically thin or thick, as for Earth or Venus respectively. Multi-wavelength and long temporal baseline observations may be required to decide between these scenarios. Ultimately, Venus represents a false positive for interpretations of brightness modulations of terrestrial exoplanets in terms of surface features. Establishing diagnostics for terrestrial exoplanets are crucial for their characterization. Here, the authors show brightness modulations of Venus are caused by planetary-scale waves superimposed on the super-rotating winds can be used to detect existence of an atmosphere if detected at an exoplanet.
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Affiliation(s)
- Y J Lee
- Technische Universität Berlin, Berlin, Germany.
| | | | - T Imamura
- GSFS, Univ. of Tokyo, Kashiwa, Japan
| | - M Yamada
- Planetary Exploration Research Center (PERC), Narashino, Japan
| | - T Satoh
- Institute of Space and Astronautical Science (ISAS/JAXA), Sagamihara, Japan
| | - A Yamazaki
- Institute of Space and Astronautical Science (ISAS/JAXA), Sagamihara, Japan.,Graduate School of Science, Univ. of Tokyo, Tokyo, Japan
| | - S Watanabe
- Hokkaido Information University, Ebetsu, Japan
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Kunimoto M, Shimada K, Yokoyama M, Fujiwara K, Honzawa A, Yamada M, Matsubara T, Matsumori R, Abulimiti A, Asai T, Amano A, Morisawa T, Takahashi T, Daida H. Impact of body mass index on the clinical outcomes in heart failure patients undergoing cardiac rehabilitation. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3116] [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: 11/13/2022] Open
Abstract
Abstract
Background
Increased body mass index (BMI) has recently shown to have a favorable effect on the prognosis in heart failure (HF) patients. However, the impact of BMI on clinical events and mortality in HF patients who underwent cardiac rehabilitation (CR) remains unclear.
Purpose
This study aimed to investigate whether the obesity paradox is present in HF patients who have undergone CR.
Methods
This study enrolled 238 consecutive HF patients who had undergone CR at our university hospital between November 2015 and October 2017. The clinical characteristics and anthropometric data of these patients, including BMI, were collected at the beginning of the CR. The major adverse cardiovascular event (MACE) was defined as a composite of all-cause mortality and unplanned hospitalization for HF. Follow-up data regarding the primary endpoints were collected until November 2018.
Results
Patients (mean age 68.7 years, male 61%) were divided into four groups as per BMI quartiles. More patients in the highest BMI group were women, were significantly younger, and had a higher prevalence of hypertension, dyslipidemia, and diabetes mellitus; however, no significant differences were observed in the prevalence of chronic kidney disease, left ventricular ejection fraction, and brain natriuretic peptide levels of the four groups. During a median follow-up duration of 583 days, 28 patients experienced all-cause mortality, and 42 were hospitalized for HF. Kaplan–Meier analysis showed that patients in the highest BMI quartiles had lower rates of MACE (Log-rank P<0.05) (Figure 1). After adjusting for confounding factors, Cox regression multivariate analysis revealed that BMI was negatively and independently associated with the incidence of MACE (hazard ratio: 0.89, 95% confidence interval: 0.83–0.96, P<0.05).
Conclusion
Increased BMI was associated with better clinical prognosis even in HF patients who have undergone CR Therefore, BMI assessment may be useful for risk stratification in HF patients who have undergone CR.
Figure 1. Kaplan-Meier survival curve
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Kunimoto
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - K Shimada
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - M Yokoyama
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - K Fujiwara
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - A Honzawa
- Juntendo University School of Medicine, Cardiovascular Rehabilitation and Fitness, Tokyo, Japan
| | - M Yamada
- Juntendo University School of Medicine, Cardiovascular Rehabilitation and Fitness, Tokyo, Japan
| | - T Matsubara
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - R Matsumori
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - A Abulimiti
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Asai
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Surgery, Tokyo, Japan
| | - A Amano
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Surgery, Tokyo, Japan
| | - T Morisawa
- Juntendo University School of Medicine, Faculty of Health Science, Tokyo, Japan
| | - T Takahashi
- Juntendo University School of Medicine, Faculty of Health Science, Tokyo, Japan
| | - H Daida
- Juntendo University School of Medicine, Faculty of Health Science, Tokyo, Japan
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Inazumi H, Kuwahara K, Kuwabara Y, Nakagawa Y, Kinoshita H, Moriuchi K, Yanagisawa H, Nishikimi T, Oya M, Yamada M, Kashihara T, Kurebayashi N, Sugihara M, Nakao K, Kimura T. NRSF-GNAO1-CaMK2 axis exacerbates cardiac remodeling and progresses heart failure by impairing Ca2+ homeostasis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3672] [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: 11/14/2022] Open
Abstract
Abstract
Background
In the development of heart failure, pathological intracellular signaling reactivates fetal cardiac genes, which leads to maladaptive remodeling and cardiac dysfunction. We previously reported that a transcriptional repressor, neuron restrictive silencer factor (NRSF) represses fetal cardiac genes and maintains normal cardiac function under normal conditions, while hypertrophic stimuli de-repress this NRSF mediated repression via activation of CaMKII. Molecular mechanisms by which NRSF maintains cardiac systolic function remains to be determined, however.
Purpose
To elucidate how NRSF maintains normal cardiac homeostasis and identify the novel therapeutic targets for heart failure.
Methods and results
We generated cardiac-specific NRSF knockout mice (NRSF cKO), and found that these NRSF cKO showed cardiac dysfunction and premature deaths accompanied with lethal arrhythmias, as was observed in our previously reported cardiac-specific dominant-negative mutant of NRSF transgenic mice (dnNRSF-Tg).
By cDNA microarray analysis of dnNRSF-Tg and NRSF-cKO, we identified that expression of Gnao1 gene encoding Gαo, a member of inhibitory G proteins, was commonly increased in ventricles of both types of mice.
ChIP-seq analysis, reporter assay and electrophoretic mobility shift assay identified that NRSF transcriptionally regulates Gnao1 gene expression.
Genetic Knockdown of Gαo in dnNRSF-Tg and NRSF-cKO by crossing these mice with Gnao1 knockout mice ameliorated the reduced systolic function, increased arrhythmogenicity and reduced survival rates.
Transgenic mice expressing a human GNAO1 in their hearts (GNAO1-Tg) showed progressive cardiac dysfunction with cardiac dilation. Ventricles obtained from GNAO1-Tg have increased phosphorylation level of CaMKII and increased expression level of endogenous mouse Gnao1 gene. These data suggest that increased cardiac expression of Gαo is sufficient to induce pathological Ca2+-dependent signaling and cardiac dysfunction, and that Gαo forms a positive regulatory circuit with CaMKII and NRSF.
Electrophysiological analysis in ventricular myocytes of dnNRSF-Tg revealed that impaired Ca2+ handling via alterations in localized L-type calcium channel (LTCC) activities; decreased T-tubular and increased surface sarcolemmal LTCC activities, underlies Gαo-mediated cardiac dysfunction.
Furthermore, we also identified increased expression of Gαo in ventricles of two different heart failure mice models, mice with transverse aortic constriction and mice carrying a mutant cardiac troponin T, and confirmed that genetic reduction of Gαo prevented the progression of cardiac dysfunction in both types of mice.
Conclusions
Increased expression of Gαo, induced by attenuation of NRSF-mediated repression forms a pathological circuit via activation of CaMKII. This circuit exacerbates cardiac remodeling and progresses heart failure by impairing Ca2+ homeostasis. Gαo is a potential therapeutic target for heart failure.
Figure 1
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Grants-in –Aid for Scientific Research from the Japan Society for the Promotion of Science
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Affiliation(s)
- H Inazumi
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Kuwahara
- Shinsyu University School of Medicine, matsumoto, Japan
| | - Y Kuwabara
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Y Nakagawa
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Kinoshita
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Moriuchi
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Yanagisawa
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Nishikimi
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M Oya
- Shinsyu University School of Medicine, matsumoto, Japan
| | - M Yamada
- Shinsyu University School of Medicine, matsumoto, Japan
| | - T Kashihara
- Shinsyu University School of Medicine, matsumoto, Japan
| | - N Kurebayashi
- Juntendo University Graduate School of Medicine, tokyo, Japan
| | - M Sugihara
- Juntendo University Graduate School of Medicine, tokyo, Japan
| | - K Nakao
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Kimura
- Kyoto University Graduate School of Medicine, Kyoto, Japan
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Oide S, Yamada M, Nishio M, Sekikawa T, Koyasu Y. Effectiveness and strategies of Laparoscopic Assisted Cystectomy for benign large ovarian cysts. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1718042] [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] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Yamada M, Kimura Y, Ishiyama D, Otobe Y, Suzuki M, Koyama S, Kikuchi T, Kusumi H, Arai H. Letter to the Editor: Recovery of Physical Activity among Older Japanese Adults since the First Wave of the COVID-19 Pandemic. J Nutr Health Aging 2020. [PMID: 33155634 PMCID: PMC7597429 DOI: 10.1007/s12603-020-1516-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- M Yamada
- Minoru Yamada, Faculty of Human Sciences, University of Tsukuba, 3-29-1 Otsuka, Bunkyo-ku, Tokyo 112-0012, JapanTel: +81-3-3942-6863, Fax: +81-3-3942-6895, E-mail address:
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Matsuda T, Ogata H, Kanno M, Ishikawa A, Yamada M, Sakamaki-Sunaga M. Effects of the menstrual cycle on oxidative stress and antioxidant response to high-intensity intermittent exercise until exhaustion in healthy women. J Sports Med Phys Fitness 2020; 60:1335-1341. [PMID: 32550716 DOI: 10.23736/s0022-4707.20.10868-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND This study aimed to investigate the effects of the menstrual cycle on the oxidative stress and antioxidant response during high-intensity intermittent exercise until exhaustion in healthy women who habitually exercised. METHODS Ten women with normal menstrual cycle completed 2 menstrual cycle phases, including the early follicular phase (FP) and the midluteal phase (LP). High-intensity exercise until exhaustion was performed on each test day. Blood samples were collected before the exercise (Pre), immediately after the exercise (Post0), and 60 minutes after the exercise (Post60). The levels of estradiol; progesterone; oxidative stress, which was measured as diacron reactive oxygen metabolites (d-ROMs); and antioxidant capacity, which was measured as the biological antioxidant potential (BAP), were assessed. RESULTS The levels of serum estradiol and progesterone at Pre were significantly higher in the LP than in the FP (P<0.01). There were no significant differences in the d-ROMs, BAP, and BAP/d-ROMs between the FP and the LP at Pre, Post0, and Post60. Compared with the FP, the LP had significantly lower d-ROMs change rate from Pre at Post0 and Post60 (P<0.05). Moreover, the BAP/d-ROMs change rate from Pre showed a significantly higher trend in the LP than in the FP at Post0 and Post60 (P=0.06). CONCLUSIONS In women with regular menstrual cycle, oxidative stress during exercise and recovery may be eliminated during the LP, when the estradiol and progesterone levels are higher, compared with those during the FP.
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Affiliation(s)
- Tomoka Matsuda
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan -
| | - Hazuki Ogata
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Moe Kanno
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Akira Ishikawa
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Mizuki Yamada
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
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42
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Morota T, Sugita S, Cho Y, Kanamaru M, Tatsumi E, Sakatani N, Honda R, Hirata N, Kikuchi H, Yamada M, Yokota Y, Kameda S, Matsuoka M, Sawada H, Honda C, Kouyama T, Ogawa K, Suzuki H, Yoshioka K, Hayakawa M, Hirata N, Hirabayashi M, Miyamoto H, Michikami T, Hiroi T, Hemmi R, Barnouin OS, Ernst CM, Kitazato K, Nakamura T, Riu L, Senshu H, Kobayashi H, Sasaki S, Komatsu G, Tanabe N, Fujii Y, Irie T, Suemitsu M, Takaki N, Sugimoto C, Yumoto K, Ishida M, Kato H, Moroi K, Domingue D, Michel P, Pilorget C, Iwata T, Abe M, Ohtake M, Nakauchi Y, Tsumura K, Yabuta H, Ishihara Y, Noguchi R, Matsumoto K, Miura A, Namiki N, Tachibana S, Arakawa M, Ikeda H, Wada K, Mizuno T, Hirose C, Hosoda S, Mori O, Shimada T, Soldini S, Tsukizaki R, Yano H, Ozaki M, Takeuchi H, Yamamoto Y, Okada T, Shimaki Y, Shirai K, Iijima Y, Noda H, Kikuchi S, Yamaguchi T, Ogawa N, Ono G, Mimasu Y, Yoshikawa K, Takahashi T, Takei Y, Fujii A, Nakazawa S, Terui F, Tanaka S, Yoshikawa M, Saiki T, Watanabe S, Tsuda Y. Sample collection from asteroid (162173) Ryugu by Hayabusa2: Implications for surface evolution. Science 2020; 368:654-659. [DOI: 10.1126/science.aaz6306] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 04/02/2020] [Indexed: 11/02/2022]
Affiliation(s)
- T. Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - S. Sugita
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Y. Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M. Kanamaru
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - E. Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Departamento de Astrofísica, Universidad de La Laguna, 38206 La Laguna, Tenerife, Spain
- Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain
| | - N. Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R. Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - N. Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H. Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M. Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - Y. Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - S. Kameda
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - M. Matsuoka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - C. Honda
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T. Kouyama
- National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064 Japan
| | - K. Ogawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
- JAXA Space Exploration Center, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H. Suzuki
- Department of Physics, Meiji University, Kawasaki 214-8571, Japan
| | - K. Yoshioka
- Department of Complexity Science and Engineering, The University of Tokyo, Kashiwa 277-8561, Japan
| | - M. Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N. Hirata
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - M. Hirabayashi
- Department of Aerospace Engineering, Auburn University, Auburn, AL 36849, USA
| | - H. Miyamoto
- Department of Systems Innovation, The University of Tokyo, Tokyo 113-8656, Japan
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - T. Michikami
- Faculty of Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - T. Hiroi
- Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - R. Hemmi
- The University Museum, The University of Tokyo, Tokyo 113-0033, Japan
| | - O. S. Barnouin
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
| | - C. M. Ernst
- Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
| | - K. Kitazato
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T. Nakamura
- Department of Earth Science, Tohoku University, Sendai 980-8578, Japan
| | - L. Riu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - H. Kobayashi
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - S. Sasaki
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - G. Komatsu
- International Research School of Planetary Sciences, Università d’Annunzio, 65127 Pescara, Italy
| | - N. Tanabe
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y. Fujii
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - T. Irie
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - M. Suemitsu
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
| | - N. Takaki
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - C. Sugimoto
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K. Yumoto
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M. Ishida
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - H. Kato
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - K. Moroi
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - D. Domingue
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - P. Michel
- Université Côte d’Azur, Observatoire de la Côte d’Azur, Centre National de le Recherche Scientifique, Laboratoire Lagrange, 06304 Nice, France
| | - C. Pilorget
- Institut d’Astrophysique Spatiale, Université Paris-Sud, 91405 Orsay, France
| | - T. Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Ohtake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- School of Computer Science and Engineering, University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y. Nakauchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Tsumura
- Department of Natural Science, Faculty of Science and Engineering, Tokyo City University, Tokyo 158-8557, Japan
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - H. Yabuta
- Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Y. Ishihara
- National Institute for Environmental Studies, Tsukuba 305-8506, Japan
| | - R. Noguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Matsumoto
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - A. Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - N. Namiki
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S. Tachibana
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M. Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H. Ikeda
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K. Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T. Mizuno
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - C. Hirose
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S. Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - O. Mori
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T. Shimada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Soldini
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool L69 3BX, UK
| | - R. Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - H. Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - Y. Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T. Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y. Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y. Iijima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H. Noda
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S. Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T. Yamaguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N. Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - G. Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - Y. Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K. Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T. Takahashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y. Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - A. Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F. Terui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M. Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T. Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S. Watanabe
- Departments of Earth and Environmental Sciences and Physics, Nagoya University, Nagoya 464-8601, Japan
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y. Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
- Departments of Space and Astronautical Science and Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
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Ogura T, Yamada M, Nishioka N, Yamada T, Higuchi K. Gastrointestinal: Knuckle guidewire insertion: Safe techniques of guidewire insertion into the pancreatobiliary tract using a novel 0.025-inch guidewire. J Gastroenterol Hepatol 2020; 35:707. [PMID: 31828835 DOI: 10.1111/jgh.14895] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/03/2019] [Accepted: 10/07/2019] [Indexed: 12/09/2022]
Affiliation(s)
- T Ogura
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - M Yamada
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - N Nishioka
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - T Yamada
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - K Higuchi
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
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Arakawa M, Saiki T, Wada K, Ogawa K, Kadono T, Shirai K, Sawada H, Ishibashi K, Honda R, Sakatani N, Iijima Y, Okamoto C, Yano H, Takagi Y, Hayakawa M, Michel P, Jutzi M, Shimaki Y, Kimura S, Mimasu Y, Toda T, Imamura H, Nakazawa S, Hayakawa H, Sugita S, Morota T, Kameda S, Tatsumi E, Cho Y, Yoshioka K, Yokota Y, Matsuoka M, Yamada M, Kouyama T, Honda C, Tsuda Y, Watanabe S, Yoshikawa M, Tanaka S, Terui F, Kikuchi S, Yamaguchi T, Ogawa N, Ono G, Yoshikawa K, Takahashi T, Takei Y, Fujii A, Takeuchi H, Yamamoto Y, Okada T, Hirose C, Hosoda S, Mori O, Shimada T, Soldini S, Tsukizaki R, Iwata T, Ozaki M, Abe M, Namiki N, Kitazato K, Tachibana S, Ikeda H, Hirata N, Hirata N, Noguchi R, Miura A. An artificial impact on the asteroid (162173) Ryugu formed a crater in the gravity-dominated regime. Science 2020; 368:67-71. [PMID: 32193363 DOI: 10.1126/science.aaz1701] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 03/04/2020] [Indexed: 11/02/2022]
Abstract
The Hayabusa2 spacecraft investigated the small asteroid Ryugu, which has a rubble-pile structure. We describe an impact experiment on Ryugu using Hayabusa2's Small Carry-on Impactor. The impact produced an artificial crater with a diameter >10 meters, which has a semicircular shape, an elevated rim, and a central pit. Images of the impact and resulting ejecta were recorded by the Deployable CAMera 3 for >8 minutes, showing the growth of an ejecta curtain (the outer edge of the ejecta) and deposition of ejecta onto the surface. The ejecta curtain was asymmetric and heterogeneous and it never fully detached from the surface. The crater formed in the gravity-dominated regime; in other words, crater growth was limited by gravity not surface strength. We discuss implications for Ryugu's surface age.
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Affiliation(s)
- M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan.
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - K Ogawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan.,JAXA Space Exploration Center, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Kadono
- Department of Basic Sciences, University of Occupational and Environmental Health, Kitakyusyu 807-8555, Japan
| | - K Shirai
- Department of Planetology, Kobe University, Kobe 657-8501, Japan.,Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - K Ishibashi
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - N Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - Y Iijima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - C Okamoto
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - Y Takagi
- Department of Regional Business, Aichi Toho University, Nagoya 465-8515, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - P Michel
- Observatoire de la Côte d'Azur, Université Côte d'Azur, CNRS, Laboratoire Lagrange, CS34229, 06304 Nice Cedex 4, France
| | - M Jutzi
- Physics Institute, University of Bern, National Centre of Competence in Research PlanetS, Gesellschaftsstrasse 6, 3012, Bern, Switzerland
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Kimura
- Department of Electrical Engineering, Tokyo University of Science, Noda 278-8510, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Toda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Imamura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Sugita
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - S Kameda
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - E Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, 38205 San Cristóbal de La Laguna, Spain
| | - Y Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Yoshioka
- Department of Complexity Science and Engineering, The University of Tokyo, Kashiwa 277-8561, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Information Science, Kochi University, Kochi 780-8520, Japan
| | - M Matsuoka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Kouyama
- National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - C Honda
- School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Watanabe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - F Terui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Kikuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Yamaguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - N Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - G Ono
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - K Yoshikawa
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Takahashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - C Hirose
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - O Mori
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Shimada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - S Soldini
- Department of Mechanical, Materials and Aerospace Engineering, University of Liverpool, Liverpool L3 5TQ, UK
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - N Namiki
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan.,Department of Astronomical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
| | - K Kitazato
- School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - S Tachibana
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - H Ikeda
- Research and Development Directorate, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - N Hirata
- School of Computer Science and Engineering, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - R Noguchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies, SOKENDAI, Hayama 240-0193, Japan
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Ogura T, Ueno S, Yamada T, Yamada M, Higuchi K. Gastrointestinal: Antegrade metal stent deployment for pancreaticojejunostomy stricture under endoscopic ultrasound guidance. J Gastroenterol Hepatol 2020; 35:360. [PMID: 31730727 DOI: 10.1111/jgh.14884] [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] [Received: 07/04/2019] [Accepted: 10/03/2019] [Indexed: 12/09/2022]
Affiliation(s)
- T Ogura
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - S Ueno
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - T Yamada
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - M Yamada
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
| | - K Higuchi
- 2nd Department of Internal Medicine, Osaka Medical College, Osaka, Japan
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46
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Matsuda T, Furuhata T, Ogata H, Kamemoto K, Yamada M, Sakamaki-Sunaga M. Effects of the Menstrual Cycle on Serum Carnitine and Endurance Performance of Women. Int J Sports Med 2020; 41:443-449. [PMID: 32059242 DOI: 10.1055/a-1088-5555] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
This study aimed to investigate the effect of the menstrual cycle on serum carnitine and the endurance performance of healthy women. Fifteen eumenorrheic women underwent cycle ergometer exercise at 60% maximal oxygen uptake (V̇ O2max) for 45 min, followed by exercise at an intensity that was increased to 80% V̇ O 2max until exhaustion, during two menstrual cycle phases, including the early follicular phase (FP) and the midluteal phase (LP). The blood levels of estradiol, progesterone, total carnitine, free carnitine, and acylcarnitine were assessed. Compared with the FP, the LP had significantly lower serum total carnitine (p<0.05) and free carnitine (p<0.01). Moreover, the group with decreased endurance performance in the LP than in the FP showed a significantly higher change in serum free carnitine compared with the group that showed improved endurance performance in the LP than in the FP (p<0.05). The results of this study suggested that the changes in serum free carnitine during the menstrual cycle might influence endurance performance.
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Affiliation(s)
- Tomoka Matsuda
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Tamaki Furuhata
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
| | - Hazuki Ogata
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Kayoko Kamemoto
- Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
| | - Mizuki Yamada
- Department of Exercise Physiology, Nippon Sport Science University, Tokyo, Japan
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47
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Hosono Y, Takahashi K, Akimoto S, Ifuku M, Iso T, Yazaki K, Yamada M, Matsui K, Akimoto K, Nakanishi K, Nii M, Kawasaki S, Kishiro M, Shimizu T. P1357 Left atrial function decreases with age in patients with repaired tetralogy of Fallot decrease. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.792] [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: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
Left ventricular function has been shown to be an important prognostic indicator in patients with repaired tetralogy of Fallot (rTOF) and tends to decrease with age. In recent years, left atrial (LA) function was reported to be a useful prognostic indicator more than or equal to left ventricular function in acquired heart diseases. However, atrial function in rTOF has not yet been sufficiently examined.
PURPOSE
The aim of this study was to investigate the relationship between LA dysfunction and age in rTOF using strain analysis.
METHODS
In order to assess the relationship between LA function and age, we recruited 59 patients with rTOF ranging in age from 5-40 years. We stratified the patients into 3 groups (T1: 5-10 years, T2: 11-20 years, T3: 21-40 years) and divided 54 controls of similar age into 3 corresponding groups (N1, N2, and N3). Two-dimensional speckle tracking images (2D-STI) obtained from four- and two-chamber views were used to assess LA functions by measuring reservoir, conduit, and pump strain. Additionally, we measured the strain rate (SR) in the systole, early diastole, and late diastole.
RESULTS
LA reservoir strain (37.4 ± 2.2% vs. 47.9 ± 1.7%, P= 0.004), LA pump strain (8.3 ± 1.4% vs. 14.1 ± 2.7%, p <.001), atrial systolic LA-SR (1.5 ± 0.4% vs. 2.4 ± 0.6%, p <.001), and systolic LA-SR (1.5 ± 0.3% vs. 2.1 ± 0.4%, p = 0.003) were significantly decreased in T3 compared with N3. Although only LA conduit strain decreased with aging (r = -0.3204, p = 0011) in controls, all of the LA reservoir (r = -0.325, p = 0.020), conduit (r = -0.314, p = 0.025), and pump strain (r = -0.481, p < 0.001) in rTOF decreased with aging.
Early diastole SR was significantly decreased in the T1 and T3 groups compared with the N1 and N3 groups (T1 vs N1, 3.00 ± 0.63% vs. 4.03 ± 0.0.80%, p <.0.001, T3 vs N3, 2.31 ± 0.57% vs.3.31 ± 0.47%, p < 0.001). Both systolic SR and late diastole SR decreased in T3 group compared with the N3 (1.54 ± 0.32% vs. 2.08 ± 0.42%, p = 0.003, 1.42 ± 0.32% vs.2.42 ± 0.61%, p < 0.001), respectively. Although only early diastole SR decreased with aging (r = -0.415, p < 0.001) in controls, all of the systole (r = -0.287, p = 0.041), early diastole (r = -0.337, p = 0.019), and late diastole SR (r = -0.407, p = 0.003) in rTOF decreased with aging.
CONCLUSIONS
In rTOF, most of the LA functions assessed by strain analysis decreased compared to normal controls in over 20 years old age. Furthermore, all measured functions decreased with age in rTOF while only two parameters decreased with age in normal controls. These results suggest that LA function may be an important indicator in long-term rTOF follow-up. These are new insights into LA function in patients with rTOF.
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Affiliation(s)
- Y Hosono
- Juntendo University School of Medicine, Tokyo, Japan
| | - K Takahashi
- Juntendo University School of Medicine, Tokyo, Japan
| | - S Akimoto
- Juntendo University School of Medicine, Tokyo, Japan
| | - M Ifuku
- Juntendo University School of Medicine, Tokyo, Japan
| | - T Iso
- Juntendo University, Pediatrics, Tokyo, Japan
| | - K Yazaki
- Juntendo University, Pediatrics, Tokyo, Japan
| | - M Yamada
- Juntendo University, Pediatrics, Tokyo, Japan
| | - K Matsui
- Juntendo University, Pediatrics, Tokyo, Japan
| | - K Akimoto
- Juntendo University, Pediatrics, Tokyo, Japan
| | - K Nakanishi
- Juntendo University, Cardiovascular surgery, Tokyo, Japan
| | - M Nii
- Shizuoka Children"s Hospital, Pediatric Cardiology, Shizuoka, Japan
| | - S Kawasaki
- Juntendo University, Cardiovascular surgery, Tokyo, Japan
| | - M Kishiro
- Juntendo University, Pediatrics, Tokyo, Japan
| | - T Shimizu
- Juntendo University, Pediatrics, Tokyo, Japan
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Yamada M, Kimura Y, Ishiyama D, Otobe Y, Suzuki M, Koyama S, Kikuchi T, Kusumi H, Arai H. Letter to the Editor: Recovery of Physical Activity among Older Japanese Adults since the First Wave of the COVID-19 Pandemic. J Nutr Health Aging 2020; 24:1036-1037. [PMID: 33155634 PMCID: PMC7597429 DOI: 10.1007/s12603-020-1466-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 07/23/2020] [Indexed: 11/28/2022]
Affiliation(s)
- M Yamada
- Minoru Yamada, Faculty of Human Sciences, University of Tsukuba, 3-29-1 Otsuka, Bunkyo-ku, Tokyo 112-0012, JapanTel: +81-3-3942-6863, Fax: +81-3-3942-6895, E-mail address:
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49
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Murai H, Nakamura Y, Matsushita T, Kitamoto T, Tsuboi Y, Sanjo N, Yamada M, Mizusawa H. Epidemiological study of Gerstmann-Sträussler-Scheinker disease with codon 102 mutation in Japan. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.907] [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: 11/26/2022]
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50
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Shibata N, Sumi T, Umemoto N, Kajiura H, Inoue S, Iio Y, Sugiura T, Taniguchi T, Asai T, Yamada M, Shimizu K, Murohara T. P5410Combination assessment of renal and hepatic dysfunction improves the predictability of prognosis in patients with acute decompensated heart failure. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0368] [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: 11/13/2022] Open
Abstract
Abstract
Background
Renal dysfunction is associated with poor mortality in patients with heart failure (HF). Hepatic dysfunction, assessed by Fibrosis-4 (FIB4) index, has also prediction ability in acute decompensated HF (ADHF) patients. We investigated whether the assessment of the combination of FIB4 index and renal dysfunction improves predictability in patients with ADHF.
Methods
We retrospectively enrolled consecutive 758 patients who admitted due to ADHF from January 2011 to February 2018 and followed up for one year. FIB4 index on admission was calculated by the formula: age (yrs) × AST[U/L] / (platelets [103/μL] × (ALT[U/L])1/2). Study subjects were divided into high FIB4 index (>3.25) and low FIB4 index (≤3.25), furthermore each group were classified by the presence/absence of CKD (estimated glomerular filtration rate <60 ml/min/1.73m). We have generated four groups; low FIB4/without CKD (n=154), low FIB4/with CKD (n=294), high FIB4/without CKD (n=56), and high FIB4/with CKD (n=254). The primary outcome was defined as all-cause mortality in one year. We performed Kaplan-Meyer analysis and multivariable Cox regression models. Furthermore, we evaluated the incremental value with C-index, net reclassification improvement (NRI) and integrated discrimination improvement (IDI) when FIB4 index and renal dysfunction added to a baseline model.
Results
In total, 106 patients died in one year. High FIB4 index and CKD showed significantly higher 1-year mortality (high FIB4 index: 19.7% vs 10.3%, p<0.001, CKD: 17.0% vs 6.7%, p<0.001, respectively). Kaplan-Meyer analysis shows that high FIB4 index with CKD showed statistically higher mortality than the others (vs low FIB4/without CKD, p<0.001, vs high FIB4/without CKD, p=0.031, vs low FIB4/with CKD, p<0.001, respectively).
Multivariate Cox regression model revealed that both high FIB4 index and CKD were an independent risk predictor of 1-year mortality (FIB4 index: p<0.001, HR 1.06, 95% CI 1.035–1.087, CKD: p=0.004, HR 1.834, 95% CI 1.213–2.773, respectively) in patients with ADHF.
A baseline model for prediction of 1-year mortality was determined by multivariable logistic regression including age, body mass index, systolic blood pressure, and serum albumin (C-index: 0.688). Adding high FIB4 index and CKD to the baseline model, all of C-index (0.738, p=0.04), NRI (0.122, p=0.067), and IDI (0.024, p=0.004) were improved.
Receiver operating characteristic curves
Conclusions
Combination assessment of renal and hepatic dysfunction could improve the predictability of prognosis in patients with ADHF.
Acknowledgement/Funding
None
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Affiliation(s)
- N Shibata
- Ichinomiya municipal hospital, Department of cardiology, Ichinomiya, Japan
| | - T Sumi
- Ichinomiya municipal hospital, Department of cardiology, Ichinomiya, Japan
| | - N Umemoto
- Ichinomiya municipal hospital, Department of cardiology, Ichinomiya, Japan
| | - H Kajiura
- Ichinomiya municipal hospital, Department of cardiology, Ichinomiya, Japan
| | - S Inoue
- Ichinomiya municipal hospital, Department of cardiology, Ichinomiya, Japan
| | - Y Iio
- Ichinomiya municipal hospital, Department of cardiology, Ichinomiya, Japan
| | - T Sugiura
- Ichinomiya municipal hospital, Department of cardiology, Ichinomiya, Japan
| | - T Taniguchi
- Ichinomiya municipal hospital, Department of cardiology, Ichinomiya, Japan
| | - T Asai
- Ichinomiya municipal hospital, Department of cardiology, Ichinomiya, Japan
| | - M Yamada
- Ichinomiya municipal hospital, Department of cardiology, Ichinomiya, Japan
| | - K Shimizu
- Ichinomiya municipal hospital, Department of cardiology, Ichinomiya, Japan
| | - T Murohara
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
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