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Inoue Y, Lock D, Sato M, Aizawa K, Mikura A, Kohno N, Ogasawara E. What explains the well-being benefits of physical activity? A mixed-methods analysis of the roles of participation frequency and social identification. Soc Sci Med 2024; 340:116454. [PMID: 38052118 DOI: 10.1016/j.socscimed.2023.116454] [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: 12/21/2022] [Revised: 11/14/2023] [Accepted: 11/22/2023] [Indexed: 12/07/2023]
Abstract
OBJECTIVE Physical activity in a social setting is said to be associated with well-being because it provides opportunities for participants to form social relationships. However, there are inconsistent findings regarding the well-being benefits of participating in physical activity with others. To address this inconclusive evidence, we draw on the social identity approach to health and well-being to examine whether (a) the frequency of physical activity participation in a social setting and (b) the degree of social identification associated with it, have different relationships with participants' well-being. METHODS We implemented a two-phase, mixed-methods design with members of women's only fitness clubs in Japan. In Study 1, we collected survey responses about social identification, life satisfaction, and eudaimonic well-being from 1118 members. The survey data were combined with respondents' objective participation data from a membership database. In Study 2, we interviewed a sample of club members to understand how the nature of social relationships differed depending on the degree of their social identification. RESULTS Study 1 found that social identification with a fitness club, but not the frequency of attending the club for physical activity, was positively associated with members' well-being. Study 2 revealed that members with high social identification experienced more affective relationships with other members than those with medium or low identification. CONCLUSIONS Our research provides quantitative and qualitative evidence supporting the association between social identification and the well-being benefits of physical activity in a social setting. It confirms the predictions of the social identity approach to health and well-being, demonstrating that people enjoy well-being benefits from physical activity participation when it is internalized as a meaningful definition of self.
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Affiliation(s)
- Yuhei Inoue
- Sport Policy Unit, Department of People and Performance, Manchester Metropolitan University, All Saints Building, All Saints, Manchester, M15 6BH, United Kingdom; Manchester Metropolitan University Institute of Sport, Manchester, United Kingdom.
| | - Daniel Lock
- Department of Sport and Event Management, Bournemouth University, Fern Barrow, Poole, BH12 5BB, United Kingdom
| | - Mikihiro Sato
- Department of Recreation, Sport and Tourism, University of Illinois Urbana-Champaign, 1206 South Fourth Street Champaign, IL, 61820, USA
| | | | - Akane Mikura
- Faculty of Health and Sports Science, Juntendo University, 1-1 Hiraka-gakuendai, Inzai-shi, Chiba, 270-1695, Japan; Japanese Center for Research on Women in Sport, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Natsumi Kohno
- Faculty of Health and Sports Science, Juntendo University, 1-1 Hiraka-gakuendai, Inzai-shi, Chiba, 270-1695, Japan
| | - Etsuko Ogasawara
- Faculty of Health and Sports Science, Juntendo University, 1-1 Hiraka-gakuendai, Inzai-shi, Chiba, 270-1695, Japan; Japanese Center for Research on Women in Sport, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
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Gong T, Habara H, Sumioka K, Yoshimoto M, Hayashi Y, Kawazu S, Otsuki T, Matsumoto T, Minami T, Abe K, Aizawa K, Enmei Y, Fujita Y, Ikegami A, Makiyama H, Okazaki K, Okida K, Tsukamoto T, Arikawa Y, Fujioka S, Iwasa Y, Lee S, Nagatomo H, Shiraga H, Yamanoi K, Wei MS, Tanaka KA. Direct observation of imploded core heating via fast electrons with super-penetration scheme. Nat Commun 2019; 10:5614. [PMID: 31819056 PMCID: PMC6901506 DOI: 10.1038/s41467-019-13574-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 03/03/2019] [Accepted: 11/08/2019] [Indexed: 11/09/2022] Open
Abstract
Fast ignition (FI) is a promising approach for high-energy-gain inertial confinement fusion in the laboratory. To achieve ignition, the energy of a short-pulse laser is required to be delivered efficiently to the pre-compressed fuel core via a high-energy electron beam. Therefore, understanding the transport and energy deposition of this electron beam inside the pre-compressed core is the key for FI. Here we report on the direct observation of the electron beam transport and deposition in a compressed core through the stimulated Cu Kα emission in the super-penetration scheme. Simulations reproducing the experimental measurements indicate that, at the time of peak compression, about 1% of the short-pulse energy is coupled to a relatively low-density core with a radius of 70 μm. Analysis with the support of 2D particle-in-cell simulations uncovers the key factors improving this coupling efficiency. Our findings are of critical importance for optimizing FI experiments in a super-penetration scheme.
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Affiliation(s)
- T Gong
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan.,Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, People's Republic of China
| | - H Habara
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan.
| | - K Sumioka
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - M Yoshimoto
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Hayashi
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - S Kawazu
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Otsuki
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Matsumoto
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Minami
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Abe
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Aizawa
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Enmei
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Fujita
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - A Ikegami
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - H Makiyama
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Okazaki
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Okida
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Tsukamoto
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Arikawa
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - S Fujioka
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Iwasa
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - S Lee
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - H Nagatomo
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - H Shiraga
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Yamanoi
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - M S Wei
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY, 14623-1299, USA
| | - K A Tanaka
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan. .,Extreme Light Infrastructure: Nuclear Physics, 30 Reatorului, Magurele-Bucharest, 077125, Romania.
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Aizawa K, Casanova F, Mawson D, Gooding K, Strain W, Gates P, Östling G, Khan F, Colhoun H, Palombo C, Parker K, Nilsson J, Shore A, Hughes A. ALTERED CENTRAL HAEMODYNAMIC PARAMETERS DERIVED FROM RESERVOIR PRESSURE ANALYSIS. J Hypertens 2019. [DOI: 10.1097/01.hjh.0000573860.40388.fe] [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: 11/25/2022]
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Takada Y, Takagi M, Someya M, Kobayashi T, Aizawa K, Ukon K, Fujita H, Kitsu Y, Komatsu T, Yaegashi Y, Sakata K, Ikeda H. Nutrition Education Reduce Daily Variation of Rectal Volume and Dose in Patients with Prostate Cancer Treated with Intensity-Modulated Radiation Therapy. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kajimoto R, Nakamura M, Inamura Y, Kamazawa K, Ikeuchi K, Iida K, Ishikado M, Murai N, Kira H, Nakatani T, Ohira-Kawamura S, Takahashi R, Kubo N, Kambara W, Nakajima K, Aizawa K. Status report of the chopper spectrometer 4SEASONS. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1742-6596/1021/1/012030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Okita T, Hsu E, Aizawa K, Nakada H, Toya W, Matsui K. Quantitative Survey of Laypersons' Attitudes Toward Organ Transplantation in Japan. Transplant Proc 2018; 50:3-9. [PMID: 29407326 DOI: 10.1016/j.transproceed.2017.11.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 09/25/2017] [Accepted: 11/03/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND In comparison with foreign countries, living-organ transplantations (LOT) have been performed more frequently than dead organ transplants, including brain-dead organ transplantation (BOT) in Japan. This situation has given rise to organ transplantation tourism. Therefore, we clarify laypersons' preferences regarding organ transplantation that are producing the current situation in Japan, to suggest a possible framework for further efforts. METHODS Voluntary completion of a quantitative and anonymous survey was promoted online (a sample size of 1030). The questionnaire had two types of variables concerning demographic characteristics and organ transplantation-related issues. RESULTS LOT was favored over BOT. However, for willingness to donate to family members, the participants showed a significantly more positive attitude toward brain-dead organ donors (BODs) than living organ donors (LODs). In the evaluation of each transplantation technology, BOT and LOT were positioned in the middle, between transplantation that does not depend on others and the utilization of animal organs. CONCLUSIONS Although LOT was favored over BOT, for participants hypothesized to be in a position to donate and receive organs, BODs received a conversely better reputation than LODs. Our survey and discussion suggest that the present conditions of organ transplantation in Japan might be because there is a lack of deliberation on transplantation tourism and LOT. Therefore, more surveys concerning LOT cases and the implications of avoidance of organs from brain-dead bodies, coupled with more discussions based on these surveys, are necessary to formulate a Japanese transplantation policy for the future.
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Affiliation(s)
- T Okita
- Department of Medical Ethics, Tohoku University Graduate School of Medicine, Sendai, Japan; Office for Research Ethics & Bioethics, National Cerebral and Cardiovascular Center, Suita, Japan.
| | - E Hsu
- Office for Research Ethics & Bioethics, National Cerebral and Cardiovascular Center, Suita, Japan; Fulbright, Washington, DC
| | - K Aizawa
- Office for Research Ethics & Bioethics, National Cerebral and Cardiovascular Center, Suita, Japan
| | - H Nakada
- Department of Intellectual Asset Management, National Cerebral and Cardiovascular Center, Suita, Japan; Bioethics Section, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - W Toya
- Office for Research Ethics & Bioethics, National Cerebral and Cardiovascular Center, Suita, Japan; Department of Philosophy, University of Bergen, Bergen, Norway
| | - K Matsui
- Office for Research Ethics & Bioethics, National Cerebral and Cardiovascular Center, Suita, Japan
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Casanova F, Adingupu DD, Adams F, Gooding KM, Looker HC, Aizawa K, Dove F, Elyas S, Belch JJF, Gates PE, Littleford RC, Gilchrist M, Colhoun HM, Shore AC, Khan F, Strain WD. The impact of cardiovascular co-morbidities and duration of diabetes on the association between microvascular function and glycaemic control. Cardiovasc Diabetol 2017; 16:114. [PMID: 28915818 PMCID: PMC5603035 DOI: 10.1186/s12933-017-0594-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 09/04/2017] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Good glycaemic control in type 2 diabetes (T2DM) protects the microcirculation. Current guidelines suggest glycaemic targets be relaxed in advanced diabetes. We explored whether disease duration or pre-existing macrovascular complications attenuated the association between hyperglycaemia and microvascular function. METHODS 743 participants with T2DM (n = 222), cardiovascular disease (CVD = 183), both (n = 177) or neither (controls = 161) from two centres in the UK, underwent standard clinical measures and endothelial dependent (ACh) and independent (SNP) microvascular function assessment using laser Doppler imaging. RESULTS People with T2DM and CVD had attenuated ACh and SNP responses compared to controls. This was additive in those with both (ANOVA p < 0.001). In regression models, cardiovascular risk factors accounted for attenuated ACh and SNP responses in CVD, whereas HbA1c accounted for the effects of T2DM. HbA1c was associated with ACh and SNP response after adjustment for cardiovascular risk factors (adjusted standardised beta (β) -0.096, p = <0.008 and -0.135, p < 0.001, respectively). Pre-existing CVD did not modify this association (β -0.099; p = 0.006 and -0.138; p < 0.001, respectively). Duration of diabetes accounted for the association between HbA1c and ACh (β -0.043; p = 0.3), but not between HbA1c and SNP (β -0.105; p = 0.02). CONCLUSIONS In those with T2DM and CVD, good glycaemic control is still associated with better microvascular function, whereas in those with prolonged disease this association is lost. This suggests duration of diabetes may be a better surrogate for "advanced disease" than concomitant CVD, although this requires prospective validation.
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Affiliation(s)
- F Casanova
- Diabetes and Vascular Medicine Research Centre, Institute of Biomedical and Clinical Science and NIHR Exeter Clinical Research Facility, University of Exeter Medical School, Barrack Rd, Exeter, EX2 5AX, UK
| | - D D Adingupu
- Diabetes and Vascular Medicine Research Centre, Institute of Biomedical and Clinical Science and NIHR Exeter Clinical Research Facility, University of Exeter Medical School, Barrack Rd, Exeter, EX2 5AX, UK
| | - F Adams
- Vascular and Inflammatory Diseases Research Unit, Division of Molecular and Clinical Medicine, School of Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK
| | - K M Gooding
- Diabetes and Vascular Medicine Research Centre, Institute of Biomedical and Clinical Science and NIHR Exeter Clinical Research Facility, University of Exeter Medical School, Barrack Rd, Exeter, EX2 5AX, UK
| | - H C Looker
- Vascular and Inflammatory Diseases Research Unit, Division of Molecular and Clinical Medicine, School of Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK
| | - K Aizawa
- Diabetes and Vascular Medicine Research Centre, Institute of Biomedical and Clinical Science and NIHR Exeter Clinical Research Facility, University of Exeter Medical School, Barrack Rd, Exeter, EX2 5AX, UK
| | - F Dove
- Vascular and Inflammatory Diseases Research Unit, Division of Molecular and Clinical Medicine, School of Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK
| | - S Elyas
- Diabetes and Vascular Medicine Research Centre, Institute of Biomedical and Clinical Science and NIHR Exeter Clinical Research Facility, University of Exeter Medical School, Barrack Rd, Exeter, EX2 5AX, UK
| | - J J F Belch
- Vascular and Inflammatory Diseases Research Unit, Division of Molecular and Clinical Medicine, School of Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK
| | - P E Gates
- Diabetes and Vascular Medicine Research Centre, Institute of Biomedical and Clinical Science and NIHR Exeter Clinical Research Facility, University of Exeter Medical School, Barrack Rd, Exeter, EX2 5AX, UK
| | - R C Littleford
- Vascular and Inflammatory Diseases Research Unit, Division of Molecular and Clinical Medicine, School of Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK
| | - M Gilchrist
- Diabetes and Vascular Medicine Research Centre, Institute of Biomedical and Clinical Science and NIHR Exeter Clinical Research Facility, University of Exeter Medical School, Barrack Rd, Exeter, EX2 5AX, UK
| | - H M Colhoun
- Vascular and Inflammatory Diseases Research Unit, Division of Molecular and Clinical Medicine, School of Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK
| | - A C Shore
- Diabetes and Vascular Medicine Research Centre, Institute of Biomedical and Clinical Science and NIHR Exeter Clinical Research Facility, University of Exeter Medical School, Barrack Rd, Exeter, EX2 5AX, UK
| | - F Khan
- Vascular and Inflammatory Diseases Research Unit, Division of Molecular and Clinical Medicine, School of Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, DD1 9SY, UK.
| | - W D Strain
- Diabetes and Vascular Medicine Research Centre, Institute of Biomedical and Clinical Science and NIHR Exeter Clinical Research Facility, University of Exeter Medical School, Barrack Rd, Exeter, EX2 5AX, UK.
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Yamamoto Y, Segawa M, Hanawa K, Kudo S, Takagi Y, Aizawa K, Sugi M. P5189Impact of percutaneous endoatherectomy of heavily calcified lesion in non-stent zone using sheathless guiding with occlusion balloon and bioptome (BRAVO). Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5189] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yamamoto Y, Segawa M, Hanawa K, Kudo S, Takagi Y, Aizawa K, Sugi M. P5185Findings from angioscopy during 2-step recanalization technique for in-stent re-occlusion of superficial femoral artery. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5185] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Yamamoto Y, Segawa M, Hanawa K, Kudo S, Takagi Y, Aizawa K, Sugi M. P5186Impact of trans-radial angioplasty for iliac CTO via combined use of 4Fr multipurpose catheter and 0.018 guidewire. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5186] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Shore AC, Colhoun HM, Natali A, Palombo C, Östling G, Aizawa K, Kennbäck C, Casanova F, Persson M, Gooding K, Gates PE, Khan F, Looker HC, Adams F, Belch J, Pinnoli S, Venturi E, Morizzo C, Goncalves I, Ladenvall C, Nilsson J. Measures of atherosclerotic burden are associated with clinically manifest cardiovascular disease in type 2 diabetes: a European cross-sectional study. J Intern Med 2015; 278:291-302. [PMID: 25752315 DOI: 10.1111/joim.12359] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND There is a need to develop and validate surrogate markers of cardiovascular disease (CVD) in subjects with diabetes. The macrovascular changes associated with diabetes include aggravated atherosclerosis, increased arterial stiffness and endothelial dysfunction. The aim of this study was to determine which of these factors is most strongly associated with clinically manifest cardiovascular events. METHODS Vascular changes were measured in a cohort of 458 subjects with type 2 diabetes (T2D) and CVD (myocardial infarction, stroke or lower extremity arterial disease), 527 subjects with T2D but without clinically manifest CVD and 515 subjects without T2D and with or without CVD. RESULTS Carotid intima-media thickness (IMT) and ankle-brachial pressure index were independently associated with the presence of CVD in subjects with T2D, whereas pulse wave velocity and endothelial function provided limited independent additive information. Measurement of IMT in the carotid bulb provided better discrimination of the presence of CVD in subjects with T2D than measurement of IMT in the common carotid artery. The factors most significantly associated with increased carotid IMT in T2D were age, disease duration, systolic blood pressure, impaired renal function and increased arterial stiffness, whereas there were no or weak independent associations with metabolic factors and endothelial dysfunction. CONCLUSIONS Measures of atherosclerotic burden are associated with clinically manifest CVD in subjects with T2D. In addition, vascular changes that are not directly related to known metabolic risk factors are important in the development of both atherosclerosis and CVD in T2D. A better understanding of the mechanisms involved is crucial for enabling better identification of CVD risk in T2D.
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Affiliation(s)
- A C Shore
- Diabetes and Vascular Medicine, University of Exeter Medical School and NIHR Exeter Clinical Research Facility, Exeter, UK
| | - H M Colhoun
- Medical Research Institute, University of Dundee, Dundee, UK
| | - A Natali
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - C Palombo
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - G Östling
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - K Aizawa
- Diabetes and Vascular Medicine, University of Exeter Medical School and NIHR Exeter Clinical Research Facility, Exeter, UK
| | - C Kennbäck
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - F Casanova
- Diabetes and Vascular Medicine, University of Exeter Medical School and NIHR Exeter Clinical Research Facility, Exeter, UK
| | - M Persson
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - K Gooding
- Diabetes and Vascular Medicine, University of Exeter Medical School and NIHR Exeter Clinical Research Facility, Exeter, UK
| | - P E Gates
- Diabetes and Vascular Medicine, University of Exeter Medical School and NIHR Exeter Clinical Research Facility, Exeter, UK
| | - F Khan
- Medical Research Institute, University of Dundee, Dundee, UK
| | - H C Looker
- Medical Research Institute, University of Dundee, Dundee, UK
| | - F Adams
- Medical Research Institute, University of Dundee, Dundee, UK
| | - J Belch
- Medical Research Institute, University of Dundee, Dundee, UK
| | - S Pinnoli
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - E Venturi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - C Morizzo
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - I Goncalves
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - C Ladenvall
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - J Nilsson
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
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Park J, Aizawa K, Akimoto T, Iemitsu M, Agata U, Maeda S, Lim K, Omi N. Dehydroepiandrosterone administration increased trabecular mass and dihydrotestosterone levels in the cancellous region of the tibia in young female rats. Horm Metab Res 2014; 46:651-5. [PMID: 24867140 DOI: 10.1055/s-0034-1374630] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The aim of the present study was to determine whether dehydroepiandrosterone (DHEA) administration affects bone mass and local sex hormone levels in the cancellous region of young female rats. Eleven female rats (6 weeks old) were randomly divided into 2 groups: control rats (CON, n=5) and rats treated with DHEA (DHEA, n=6). DHEA dissolved in sesame oil was administered to the DHEA group intraperitoneally at 20 mg DHEA/kg body weight, and the CON group was treated with vehicle only (sesame oil, 0.5 ml). The rats were treated with DHEA or vehicle for 3 consecutive days, followed by 1 day of no treatment. The experimental period was 8 weeks. According to dual-energy X-ray absorptiometry and high-resolution microcomputed tomography data, the DHEA group exhibited increased trabecular bone mineral density (BMD), bone volume, and tibial thickness compared to the findings in the CON group, whereas no effect was observed on cortical BMD or morphometry. The concentrations of free testosterone and estradiol in the cancellous region of the tibia did not differ between the 2 groups, but the DHT concentration was significantly higher in the DHEA group than in the CON group. These findings suggest that an increase in local DHT levels may stimulate an increase in trabecular bone mass during growth phases in female rats.
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Affiliation(s)
- J Park
- Department of Physical Education, Konkuk University, Seoul, Korea
| | - K Aizawa
- School of Letters, Senshu University, Kawasaki, Japan
| | - T Akimoto
- Center for Disease Biology and Integrative Medicine, University of Tokyo, Tokyo, Japan
| | - M Iemitsu
- Faculty of Sport and Health Science, Ritsumeikan University, Shiga, Japan
| | - U Agata
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - S Maeda
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
| | - K Lim
- Department of Physical Education, Konkuk University, Seoul, Korea
| | - N Omi
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan
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Fernandes J, Ribeiro S, Garrido P, Sereno J, Costa E, Reis F, Santos-Silva A, Hirata M, Tashiro Y, Aizawa K, Endo K, Fujimori A, Morikami Y, Okada S, Kumei M, Mizobuchi N, Sakai M, Claes K, Di Giulio S, Galle J, Guerin A, Kiss I, Suranyi M, Winearls C, Wirnsberger G, Farouk M, Manamley N, Addison J, Herlitz H, Visciano B, Nazzaro P, Riccio E, Del Rio A, Mozzillo GR, Pisani A, Gupta A, Ikizler TA, Lin V, Guss C, Pratt RD, Stewart VM, Anthoney A, Blenkin S, Ahmed S, Yasumoto M, Tsuda A, Ishimura E, Ohno Y, Ichii M, Nakatani S, Mori K, Fukumoto S, Uchida J, Emoto M, Nakatani T, Inaba M, Joki N, Tanaka Y, Kubo S, Asakawa T, Hase H, Ikeda M, Inaguma D, Sakaguchi T, Shinoda T, Koiwa F, Negi S, Yamaka T, Shigematsu T, Inaguma D, Suranyi MG, Claes K, Di Giulio S, Galle J, Kiss I, Winearls C, Wirnsberger G, Farouk M, Manamley N, Addison J, Herlitz H, Guerin A, Groenendaal-Van De Meent D, Den Adel M, Rijnders S, Essers H, Golor G, Haffner S, Schaddelee M, Hirata M, Tashiro Y, Yogo K, Aizawa K, Endo K, Choukroun G, Hannedouche T, Kessler M, Laville M, Levannier M, Mignon F, Rostaing L, Rottembourg J, Jeon J, Park Y, Karanth S, Prabhu R, Bairy M, Nagaraju SP, Bhat A, Kosuru S, Parthasarathy R, Kamath S, Prasad HK, Kallurwar KP, Nishida H, Iimori S, Okado T, Rai T, Uchida S, Sasaki S, Wan Q, Cana Ruiu DC, Ashcroft R, Brown C, Williams J, Mikhail A. CKD ANAEMIA. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu147] [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: 11/14/2022] Open
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Aizawa K, Elyas S, Adingpu D, Shore A, Strain D, Gates P. P3.10 REACTIVITY TO LOW-FLOW IN THE BRACHIAL ARTERY: A POTENTIAL DETERMINANT FOR FLOW-MEDIATED DILATORY RESPONSE. Artery Res 2014. [DOI: 10.1016/j.artres.2014.09.121] [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: 10/24/2022] Open
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Nakamura K, Aizawa K, Yamauchi J, Tanoue A. Hyperforin inhibits cell proliferation and differentiation in mouse embryonic stem cells. Cell Prolif 2013; 46:529-37. [PMID: 24033566 DOI: 10.1111/cpr.12060] [Citation(s) in RCA: 3] [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] [Received: 05/17/2013] [Accepted: 07/09/2013] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES Hyperforin, a phloroglucinol derivative of St. John's Wort, has been identified as the major molecule responsible for this plant's products anti-depressant effects. It can be expected that exposure to St. John's Wort during pregnancy occurs with some frequency although embryotoxic or teratogenic effects of St. John's Wort and hyperforin have not yet been experimentally examined in detail. In this study, to determine any embryotoxic effects of hyperforin, we have attempted to determine whether hyperforin affects growth and survival processes of employing mouse embryonic stem (mES) cells (representing embryonic tissue) and fibroblasts (representing adult tissues). MATERIALS AND METHODS We used a modified embryonic stem cell test, which has been validated as an in vitro developmental toxicity protocol, mES cells, to assess embryotoxic potential of chemicals under investigation. RESULTS We have identified that high concentrations of hyperforin inhibited mouse ES cell population growth and induced apoptosis in fibroblasts. Under our cell culture conditions, ES cells mainly differentiated into cardiomyocytes, although various other cell types were also produced. In this condition, hyperforin affected ES cell differentiation into cardiomyocytes in a dose-dependent manner. Analysis of tissue-specific marker expression also revealed that hyperforin at high concentrations partially inhibited ES cell differentiation into mesodermal and endodermal lineages. CONCLUSIONS Hyperforin is currently used in the clinic as a safe and effective antidepressant. Our data indicate that at typical dosages it has only a low risk of embryotoxicity; ingestion of large amounts of hyperforin by pregnant women, however, may pose embryotoxic and teratogenic risks.
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Affiliation(s)
- K Nakamura
- Department of Pharmacology, National Research Institute for Child Health and Development, Tokyo, 157-8538, Japan
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Okada A, Tomita T, Kashima Y, Yoshie K, Takeuchi T, Aizawa K, Ikeda U. LV remodeling caused by persistent atrial fibrillation was associated with high cardiac hyaluronan in coronary sinus vein. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5609] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ohtsuki Y, Tomita T, Kitano A, Mochizuki H, Yoshie K, Takeuchi T, Okada A, Aizawa K, Uchida M, Ikeda U. A comparison of the quality of life between patients aged below 65 years and over 65 years with Implantable Cardioverter Defibrillator (ICD). Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5132] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hirata M, Tashiro Y, Aizawa K, Endo K, Hirata M, Tashiro Y, Endo K, Aizawa K, Serizawa K, Hirata M, Yogo K, Tashiro Y, Endo K, Cases A, Portoles J, Calls J, Martinez-Castelao A, Munar MA, Segarra A, Samouilidou E, Pantelias K, Petras D, Mpakirtzi T, Pipili C, Chatzivasileiou G, Vasiliou K, Denda E, Grapsa E, Tzanatos H, Shoji S, Inaba M, Tomosugi N, Okuno S, Ichii M, Yamakawa T, Kurihara S, Barsan L, Stanciu A, Stancu S, Capusa C, Bratescu L, Mircescu G, Barsan L, Stanciu A, Stancu S, Capusa C, Mircescu G, Kuo KL, Hung SC, Lee TS, Tarng DC, Nistor I, Covic A, Goldsmith D, Garrido P, Fernandes J, Ribeiro S, Vala H, Parada B, Alves R, Belo L, Costa E, Santos-Silva A, Reis F, Abdulnabi K, Ullah A, Abdulateef A, Howse M, Khalil A, Fouqueray B, Hoffmann M, Addison J, Manamley N, Stamopoulos D, Mpakirtzi N, Afentakis N, Grapsa E, Yu KH, Chou J, Klaus S, Schaddelee M, Kashiwa M, Takada A, Neff T, Galle J, Claes K, Di Giulio S, Guerin A, Herlitz H, Kiss I, Wirnsberger G, Manamley N, Addison J, Fouqueray B, Froissart M, Winearls C, Martinez Castelao A, Cases Amenos A, Torre Carballada A, Torralba Iranzo FJ, Bronsoms Artero JM, Toran Monserrat D, Valles Prats M, Merino JL, Espejo B, Bueno B, Amezquita Y, Paraiso V, Kiss Z, Kerkovits L, Ambrus C, Kulcsar I, Szegedi J, Benke A, Borbas B, Ferenczi S, Hengsperger M, Kazup S, Nagy L, Nemeth J, Rozinka A, Szabo T, Szelestei T, Toth E, Varga G, Wagner G, Zakar G, Gergely L, Kiss I, Exarchou K, Tanahill N, Anthoney A, Khalil A, Ahmed S, Capusa C, Oprican R, Stanciu A, Lipan M, Stancu S, Chirculescu B, Mircescu G, Ferenczi S, Roger S, Malecki R, Farouk M, Dellanna F, Thomas M, Manamley N, Touam M, Chantrel F, Bouiller M, Hurot JM, Raphael T, Testa A, Veillon S, Vendrely B, Masoumi Z, Ahmadpoor P, Ghaderian SMH, Nafar M, Samavat S, Samadian F, Poorrezagholi F, Shahidi M, Riccio E, Visciano B, Capuano I, Memoli A, Mozzillo G, Memoli B, Pisani A. Anaemia in CKD 1-5. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Aizawa K, Elyas S, Adingupu D, Shore A, Strain W, Gates P. P2.17 ECHOGENICITY OF THE COMMON CAROTID ARTERY INTIMA-MEDIA COMPLEX IN STROKE. Artery Res 2013. [DOI: 10.1016/j.artres.2013.10.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Kiyanagi Y, Shinohara T, Kai T, Kamiyama T, Sato H, Kino K, Aizawa K, Arai M, Harada M, Sakai K, Oikawa K, Ooi M, Maekawa F, Iikura H, Sakai T, Matsubayashi M, Segawa M, Kureta M. Present Status of Research on Pulsed Neutron Imaging in Japan. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.phpro.2013.03.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Loh ZY, Yap CW, Anantharaman V, How P, Hirata M, Aizawa K, Yogo K, Tashiro Y, Takeda S, Endo K, Fukagawa M, Serizawa KI, Fujii H, Fujii H, Kono K, Nakai K, Goto S, Hirata M, Shinohara M, Kitazawa R, Kitazawa S, Fukagawa M, Nishi S, Oruc A, Korkmaz S, Bal O, Yilmaztepe Oral A, Ersoy A, Gullulu M, Ketteler M, Martin K, Amdahl M, Cozzolino M, Goldsmith D, Sharma A, Khan S, Ketteler M, Martin K, Amdahl M, Cozzolino M, Goldsmith D, Sharma A, Khan S, Chitalia N, Afzali B, Edozie F, Manghat P, Wierzbicki A, Hampson G, Goldsmith D, Corradini M, Iannuzzella F, Manenti L, Ciarrocchi A, Albertazzi L, Somenzi D, Pasquali S, Calabria Baxmann A, Barcellos Menon V, Froeder L, Medina-Pestana JO, Barbosa Carvalho A, Pfeferman Heilberg I, Sola L, De Souza N, Flores J, Perico N, Yuste C, Garcia DE Vinuesa MS, Luno J, Goicoechea MA, Barraca D, Panizo N, Quiroga B, Kim SM, Kwon SK, Kim HY, Cournoyer S, Bell R, Berbiche D, Menard L, Viaene L, Evenepoel P, Meijers B, Overbergh L, Mathieu C, Pasquali M, Rotondi S, Conte C, Pirro G, Mazzaferro S, Frasheri A, Marangella M, Tartaglione L, Park JS, Koo TY, Kim GH, Kang CM, Lee CH, Hiemstra TF, Casian A, Boraks P, Jayne D, Schoenmakers I, Schmiedeke B, Niemann M, Schmiedeke D, Davydenko I, Emmert A, Pilz S, Obermayer-Pietsch B, Weidemann F, Breunig F, Wanner C, Drechsler C, Shiizaki K, Ito C, Onishi A, Nakazawa E, Ogura M, Kusano E, Ermolenko V, Mikhaylova N, Mikhaylova N, Vartanjan K, Levchuk D, Dobrina E, Capusa C, Stancu S, Maria D, Vladu I, Barsan L, Garneata L, Mota E, Mircescu G, Capusa C, Stancu S, Barsan L, Ilyes A, Dorobantu N, Petrescu L, Mircescu G, Martinez-Gallardo R, Martinez-Gallardo R, Ferreira F, Garcia-Pino G, Luna E, Caravaca F, De Jager DJ, Grootendorst DC, Postmus I, De Goeij MCM, Boeschoten EW, Sijpkens YWJ, Dekker FW, Halbesma N, Wuthrich RP, Covic A, Gaillard S, Rakov V, Louvet L, Buchel J, Steppan S, Passlick-Deetjen J, Massy ZA, Akalin N, Akalin N, Altiparmak MR, Trabulus S, Yalin AS, Seyahi N, Ataman R, Serdengecti K, Donate-Correa J, Martinez-Sanz R, Muros-de-Fuentes M, Garcia J, Garcia P, Cazana V, Mora-Fernandez C, Navarro-Gonzalez JF, Chitalia N, Afzali B, Edozie F, Manghat P, Wierzbicki A, Hampson G, Goldsmith D, Berutti S, Marranca D, Soragna G, Erroi L, Migliardi M, Marangella M, Corradini M, Iannuzzella F, Belloni L, Somenzi D, Parmeggiani M, Pasquali S, Camerini C, Pezzotta M, Zani R, Movilli E, Cancarini G, Anwar S, Pruthi R, Kenchayikoppad S, Reyes J, Dasilva I, Furlano M, Calero F, Montanes R, Ayasreh N, Del Pozo M, Estorch M, Rousaud F, Ballarin JA, Bover J, Resende A, Dias CB, Dos Reis L, Jorgetti V, Woronik V, Panuccio V, Panuccio V, Enia G, Tripepi R, Cutrupi S, Pizzini P, Aliotta R, Zoccali C, Yildiz I, Sagliker Y, Demirhan O, Tunc E, Inandiklioglu N, Tasdemir D, Acharya V, Zhang L, Golea O, Sabry A, Ookalkar D, Capusa C, Radulescu D, Garneata L, Mircescu G, Ben Maiz H, Chen CH, Rome JP, Benzegoutta M, Paylar N, Eyupoglu K, Karatepe E, Esenturk M, Yavascan O, Grzegorzevska A, Shilo V, M-Mazdeh M, Francesco RC, Gouda Z, Adam SM, Emir I, Ocal F, Usta E, Kiralp N, Sagliker C, S Ozkaynak P, Sagliker HS, Bassuoni M, El-Wakil HS, Akar H, Yenicerioglu Y, Kose E, Sekin O. Mineral and bone disease - CKD 1-5. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs219] [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: 11/14/2022] Open
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Perez-Pomares JM, Ruiz-Villalba A, Ziogas A, Segovia JC, Ehrbar M, Munoz-Chapuli R, De La Rosa A, Dominguez JN, Hove-Madsen L, Sankova B, Sedmera D, Franco D, Aranega Jimenez A, Babaeva G, Chizh N, Galchenko S, Sandomirsky B, Schwarzl M, Seiler S, Steendijk P, Huber S, Maechler H, Truschnig-Wilders M, Pieske B, Post H, Simrick S, Kreutzer R, Rao C, Terracciano CM, Kirchhof P, Fabritz L, Brand T, Theveniau-Ruissy M, Parisot P, Francou A, Saint-Michel E, Mesbah K, Kelly RG, Wu HT, Sie SS, Chen CY, Kuan TC, Lin CS, Ismailoglu Z, Guven M, Yakici A, Ata Y, Ozcan S, Yildirim E, Ongen Z, Miroshnikova V, Demina E, Rodygina T, Kurjanov P, Denisenko A, Schwarzman A, Rubanenko A, Shchukin Y, Germanov A, Goldbergova M, Parenica J, Lipkova J, Pavek N, Kala P, Poloczek M, Vasku A, Parenicova I, Spinar J, Gambacciani C, Chiavacci E, Evangelista M, Vesentini N, Kusmic C, Pitto L, Chernova A, Nikulina SUY, Arvanitis DA, Mourouzis I, Pantos C, Kranias EG, Cokkinos DV, Sanoudou D, Vladimirskaya TE, Shved IA, Kryvorot SG, Schirmer IM, Appukuttan A, Pott L, Jaquet K, Ladilov Y, Archer CR, Bootman MD, Roderick HL, Fusco A, Sorriento D, Santulli G, Trimarco B, Iaccarino G, Hagenmueller M, Riffel J, Gatzoulis MA, Stoupel EG, Garcia R, Merino D, Montalvo C, Hurle MA, Nistal JF, Villar AV, Perez-Moreno A, Gilabert R, Bernhold E, Ros E, Amat-Roldan I, Katus HA, Hardt SE, Maqsood A, Zi M, Prehar S, Neyses L, Ray S, Oceandy D, Khatami N, Wadowski P, Wagh V, Hescheler J, Sachinidis A, Mohl W, Chaudhry B, Burns D, Henderson DJ, Bax NAM, Van Marion MH, Shah B, Goumans MJ, Bouten CVC, Van Der Schaft DWJ, Bax NAM, Van Oorschot AAM, Maas S, Braun J, Van Tuyn J, De Vries AAF, Gittenberger-De Groot AC, Goumans MJ, Bageghni S, Drinkhill MJ, Batten TFC, Ainscough JFX, Onate B, Vilahur G, Ferrer-Lorente R, Ybarra J, Diez-Caballero A, Ballesta-Lopez C, Moscatiello F, Herrero J, Badimon L, Martin-Rendon E, Clifford DM, Fisher SA, Brusnkill SJ, Doree C, Mathur A, Clarke M, Watt SM, Hernandez-Vera R, Badimon L, Kavanagh D, Yemm AI, Frampton J, Kalia N, Terajima Y, Shimizu T, Tsuruyama S, Ishii H, Sekine H, Hagiwara N, Okano T, Vrijsen KR, Chamuleau SAJ, Sluijter JPG, Doevendans PFM, Madonna R, Delli Pizzi S, Di Donato L, Mariotti A, Di Carlo L, D'ugo E, Teberino MA, Merla A, T A, De Caterina R, Kolker L, Ali NN, Maclellan K, Moore M, Wheeler J, Harding SE, Fleck RA, Rowlinson JM, Kraenkel N, Ascione R, Madeddu P, O'sullivan JF, Leblond AL, Kelly G, Kumar AHS, Metharom P, Buneker CK, Alizadeh-Vikali N, Hynes BG, O'connor R, Caplice NM, Noseda M, De Smith AJ, Leja T, Rao PH, Al-Beidh F, Abreu Pavia MS, Blakemore AI, Schneider MD, Stathopoulou K, Cuello F, Ehler E, Haworth RS, Avkiran M, Morawietz H, Eickholt C, Langbein H, Brux M, Goettsch C, Goettsch W, Arsov A, Brunssen C, Mazilu L, Parepa IR, Suceveanu AI, Suceveanu AP, De Man FS, Guignabert C, Tu L, Handoko ML, Schalij I, Fadel E, Postmus PE, Vonk-Noordegraaf A, Humbert M, Eddahibi S, Sorriento D, Santulli G, Del Giudice C, Anastasio A, Trimarco B, Iaccarino G, Fazal L, Azibani F, Bihry N, Merval R, Polidano E, Samuel JL, Delcayre C, Zhang Y, Mi YM, Ren LL, Cheng YP, Guo R, Liu Y, Jiang YN, Mourouzis I, Pantos C, Kokkinos AD, Cokkinos DV, Tretjakovs P, Jurka A, Bormane I, Mikelsone I, Reihmane D, Elksne K, Krievina G, Verbovenko J, Bahs G, Lopez-Andres N, Rousseau A, Calvier L, Akhtar R, Labat C, Cruickshank K, Diez J, Zannad F, Lacolley P, Rossignol P, Hamesch K, Subramanian P, Li X, Thiemann A, Heyll K, Dembowsky K, Chevalier E, Weber C, Schober A, Yang L, Kim G, Gardner B, Earley J, Hofmann-Bowman M, Cheng CF, Lian WS, Lin H, Jinjolia NJ, Abuladze GA, Tvalchrelidze SHT, Khamnagadaev I, Shkolnikova M, Kokov L, Miklashevich I, Drozdov I, Ilyich I, Bingen BO, Askar SFA, Ypey DL, Van Der Laarse A, Schalij MJ, Pijnappels DA, Roney CH, Ng FS, Chowdhury RA, Chang ETY, Patel PM, Lyon AR, Siggers JH, Peters NS, Obergrussberger A, Stoelzle S, Bruggemann A, Haarmann C, George M, Fertig N, Moreira D, Souza A, Valente P, Kornej J, Reihardt C, Kosiuk J, Arya A, Hindricks G, Adams V, Husser D, Bollmann A, Camelliti P, Dudhia J, Dias P, Cartledge J, Connolly DJ, Terracciano CM, Nobles M, Sebastian S, Tinker A, Opel A, Tinker A, Daimi H, Haj Khelil A, Be Chibani J, Barana A, Amoros I, Gonzalez De La Fuente M, Caballero R, Aranega A, Franco D, Kelly A, Bernus O, Kemi OJ, Myles RC, Ghouri IA, Burton FL, Smith GL, Del Lungo M, Sartiani L, Spinelli V, Baruscotti M, Difrancesco D, Mugelli A, Cerbai E, Thomas AM, Aziz Q, Khambra T, Tinker A, Addlestone JMA, Cartwright EJ, Wilkinson R, Song W, Marston S, Jacquet A, Mougenot NM, Lipskaia AJ, Paalberends ER, Stam K, Van Dijk SJ, Van Slegtenhorst M, Dos Remedios C, Ten Cate FJ, Michels M, Niessen HWM, Stienen GJM, Van Der Velden J, Read MI, Andreianova AA, Harrison JC, Goulton CS, Kerr DS, Sammut IA, Schwarzl M, Seiler S, Wallner M, Huber S, Steendijk P, Maechler H, Truschnig-Wilders M, Von Lewinski D, Pieske B, Post H, Kindsvater D, Saes M, Morano I, Muegge A, Jaquet K, Buyandelger B, Kostin S, Gunkel S, Vouffo J, Ng K, Chen J, Eilers M, Isaacson R, Milting H, Knoell R, Cattin ME, Crocini C, Schlossarek S, Maron S, Hansen A, Eschenhagen T, Carrier L, Bonne G, Coppini R, Ferrantini C, Olivotto I, Del Lungo M, Belardinelli L, Poggesi C, Mugelli A, Cerbai E, Leung MC, Messer AE, Copeland O, Marston SB, Mills AM, Collins T, O'gara P, Thum T, Regalla K, Lyon AR, Macleod KT, Harding SE, Rao C, Prodromakis T, Chaudhry U, Darzi A, Yacoub MH, Athanasiou T, Terracciano CM, Bogdanova A, Makhro A, Hoydal M, Stolen TO, Johnssen AB, Alves M, Catalucci D, Condorelli G, Koch LG, Britton SL, Smith GL, Wisloff U, Bito V, Claus P, Vermeulen K, Huysmans C, Ventura-Clapier R, Sipido KR, Seliuk MN, Burlaka AP, Sidorik EP, Khaitovych NV, Kozachok MM, Potaskalova VS, Driesen RB, Galan DT, Vermeulen K, Claus P, Sipido KR, De Paulis D, Arnoux T, Schaller S, Pruss RM, Poitz DM, Augstein A, Braun-Dullaeus RC, Schmeisser A, Strasser RH, Micova P, Balkova P, Hlavackova M, Zurmanova J, Kasparova D, Kolar F, Neckar J, Novak F, Novakova O, Pollard S, Babba M, Hussain A, James R, Maddock H, Alshehri AS, Baxter GF, Dietel B, Altendorf R, Daniel WG, Kollmar R, Garlichs CD, Sirohi R, Roberts N, Lawrence D, Sheikh A, Kolvekar S, Yap J, Arend M, Walkinshaw G, Hausenloy DJ, Yellon DM, Posa A, Szabo R, Szalai Z, Szablics P, Berko MA, Orban K, Murlasits ZS, Balogh L, Varga C, Ku HC, Su MJ, Chreih RM, Ginghina C, Deleanu D, Ferreira ALBJ, Belal A, Ali MA, Fan X, Holt A, Campbell R, Schulz R, Bonanad C, Bodi V, Sanchis J, Morales JM, Marrachelli V, Nunez J, Forteza MJ, Chaustre F, Gomez C, Chorro FJ, Csont T, Fekete V, Murlasits Z, Aypar E, Bencsik P, Sarkozy M, Varga ZV, Ferdinandy P, Duerr GD, Zoerlein M, Dewald D, Mesenholl B, Schneider P, Ghanem A, Rittling S, Welz A, Dewald O, Duerr GD, Dewald D, Becker E, Peigney C, Ghanem A, Welz A, Dewald O, Bouleti C, Galaup A, Monnot C, Ghaleh B, Germain S, Timmermans A, Ginion A, De Meester C, Sakamoto K, Vanoverschelde JL, Horman S, Beauloye C, Bertrand L, Maroz-Vadalazhskaya N, Drozd E, Kukharenko L, Russkich I, Krachak D, Seljun Y, Ostrovski Y, Martin AC, Le Bonniec B, Lecompte T, Dizier B, Emmerich J, Fischer AM, Samama CM, Godier A, Mogensen S, Furchtbauer EM, Aalkjaer C, Choong WL, Jovanovic A, Khan F, Daniel JM, Dutzmann JM, Widmer-Teske R, Guenduez D, Sedding D, Castro MM, Cena JJC, Cho WJC, Goobie GG, Walsh MPW, Schulz RS, Daniel JM, Dutzmann J, Widmer-Teske R, Preissner KT, Sedding D, Aziz Q, Khambra T, Sones W, Thomas AM, Kotlikoff M, Tinker A, Serizawa K, Yogo K, Aizawa K, Hirata M, Tashiro Y, Ishizuka N, Varela A, Katsiboulas M, Tousoulis D, Papaioannou TG, Vaina S, Davos CH, Piperi C, Stefanadis C, Basdra EK, Papavassiliou AG, Hermenegildo C, Lazaro-Franco M, Sobrino A, Bueno-Beti C, Martinez-Gil N, Walther T, Peiro C, Sanchez-Ferrer CF, Novella S, Ciccarelli M, Franco A, Sorriento D, Del Giudice C, Dorn GW, Trimarco B, Iaccarino G, Cseplo P, Torok O, Springo ZS, Vamos Z, Kosa D, Hamar J, Koller A, Bubb KJ, Ahluwalia A, Stepien EL, Gruca A, Grzybowska J, Goralska J, Dembinska-Kiec A, Stepien EL, Stolinski J, Grzybowska J, Goralska J, Partyka L, Gruca A, Dembinska-Kiec A, Zhang H, Sweeney D, Thomas GN, Fish PV, Taggart DP, Watt SM, Martin-Rendon E, Cioffi S, Bilio M, Martucciello S, Illingworth E, Caporali A, Shantikumar S, Marchetti M, Martelli F, Emanueli C, Marchetti M, Meloni M, Caporali A, Al Haj Zen A, Sala-Newby G, Emanueli C, Del Turco S, Saponaro C, Dario B, Sartini S, Menciassi A, Dario P, La Motta C, Basta G, Santiemma V, Bertone C, Rossi F, Michelon E, Bianco MJ, Castelli A, Shin DI, Seung KB, Seo SM, Park HJ, Kim PJ, Baek SH, Shin DI, Seung KB, Seo SM, Park HJ, Choi YS, Her SH, Kim DB, Kim PJ, Lee JM, Park CS, Rocchiccioli S, Cecchettini A, Pelosi G, Kusmic C, Citti L, Parodi O, Trivella MG, Michel-Monigadon D, Burger F, Dunoyer-Geindre S, Pelli G, Cravatt B, Steffens S, Didangelos A, Mayr U, Yin X, Stegemann C, Shalhoub J, Davies AH, Monaco C, Mayr M, Lypovetska S, Grytsenko S, Njerve IU, Pettersen AA, Opstad TB, Bratseth V, Arnesen H, Seljeflot I, Dumitriu IE, Baruah P, Antunes RF, Kaski JC, Forteza MJ, Bodi V, Trapero I, Benet I, Alguero C, Chaustre FJ, Gomez C, Sanchis J, Chorro FJ, Mangold A, Puthenkalam S, Distelmaier K, Adlbrecht C, Preissner KT, Lang IM, Koizumi T, Inoue I, Komiyama N, Nishimura S, Korneeva ON, Drapkina OM, Fornai L, Angelini A, Kiss A, Giskes F, Eijkel G, Fedrigo M, Valente ML, Thiene G, Heeren RMA, Vilahur G, Padro T, Casani L, Suades R, Badimon L, Bertoni B, Carminati R, Carlini V, Pettinari L, Martinelli C, Gagliano N, Noppe G, Buchlin P, Marquet N, Baeyens N, Morel N, Vanoverschelde JL, Bertrand L, Beauloye C, Horman S, Baysa A, Sagave J, Dahl CP, Gullestad L, Carpi A, Di Lisa F, Giorgio M, Vaage J, Valen G, Vafiadaki E, Papalouka V, Arvanitis DA, Terzis G, Spengos K, Kranias EG, Manta P, Sanoudou D, Gales C, Genet G, Dague E, Cazorla O, Payre B, Mias C, Ouille A, Lacampagne A, Pathak A, Senard JM, Abonnenc M, Da Costa Martins P, Srivastava S, Didangelos A, Yin X, Gautel M, De Windt L, Mayr M, Comelli L, Rocchiccioli S, Lande C, Ucciferri N, Trivella MG, Citti L, Cecchettini A, Ikonen L, Vuorenpaa H, Kujala K, Sarkanen JR, Heinonen T, Ylikomi T, Aalto-Setala K, Capros H, Sprincean N, Usurelu N, Egorov V, Stratu N, Matchkov V, Bouzinova E, Moeller-Nielsen N, Wiborg O, Aalkjaer C, Gutierrez PS, Aparecida-Silva R, Borges LF, Moreira LFP, Dias RR, Kalil J, Stolf NAG, Zhou W, Suntharalingam K, Brand N, Vilar Compte R, Ying L, Bicknell K, Dannoura A, Dash P, Brooks G, Tsimafeyeu I, Tishova Y, Wynn N, Oyeyipo IP, Olatunji LA, Maegdefessel L, Azuma J, Toh R, Raaz U, Merk DR, Deng A, Spin JM, Tsao PS, Lande C, Cecchettini A, Tedeschi L, Taranta M, Naldi I, Citti L, Trivella MG, Grimaldi S, Cinti C, Bousquenaud M, Maskali F, Poussier S, Marie PY, Boutley H, Karcher G, Wagner DR, Devaux Y, Torre I, Psilodimitrakopoulos S, Iruretagoiena I, Gonzalez-Tendero A, Artigas D, Loza-Alvarez P, Gratacos E, Amat-Roldan I, Murray L, Carberry DM, Dunton P, Miles MJ, Suleiman MS, Kanesalingam K, Taylor R, Mc Collum CN, Parniczky A, Solymar M, Porpaczy A, Miseta A, Lenkey ZS, Szabados S, Cziraki A, Garai J, Koller A, Myloslavska I, Menazza SM, Canton MC, Di Lisa FDL, Schulz RS, Oliveira SHV, Morais CAS, Miranda MR, Oliveira TT, Lamego MRA, Lima LM, Goncharova NS, Naymushin AV, Kazimli AV, Moiseeva OM, Lima LM, Carvalho MG, Sabino AP, Mota APL, Sousa MO, Niessner A, Richter B, Hohensinner PJ, Rychli K, Zorn G, Berger R, Moertl D, Pacher R, Wojta J, Huelsmann M, Kukharchik G, Nesterova N, Pavlova A, Gaykovaya L, Krapivka N, Konstantinova I, Sichinava L, Prapa S, Mccarthy KP, Kilner PJ, Xu XY, Johnson MR, Ho SY. Poster session 2. Cardiovasc Res 2012. [DOI: 10.1093/cvr/cvr334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Zhan H, Suzuki T, Aizawa K, Miyagawa K, Nagai R. Identification and characterisation of ataxia telangiectasia mutated (ATM) in regulation of oxidative stress-induced vascular endothelial cells senescence. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Motoki H, Koyama J, Nakazawa H, Aizawa K, Kasai H, Izawa A, Tomita T, Miyashita Y, Kumazaki S, Takahashi M, Ikeda U. Torsion analysis in the early detection of anthracycline-mediated cardiomyopathy. Eur Heart J Cardiovasc Imaging 2011; 13:95-103. [DOI: 10.1093/ejechocard/jer172] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sakaguchi Y, Kira H, Oku T, Shinohara T, Suzuki J, Sakai K, Nakamura M, Suzuya K, Aizawa K, Arai M, Takeda M, Endoh Y, Chang LJ, Arimoto Y, Ino T, Shimizu HM, Kamiyama T, Ohoyama K, Hiraka H, Tsutsumi K, Yamada K, Ohara K, Kakurai K. Structure of glasses for3He neutron spin filter cells. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/294/1/012004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Lopez-Parra V, Mallavia B, Oguiza A, Recio C, Egido J, Gomez-Guerrero C, Ito M, Nishio S, Koike T, Takayanagi K, Hasegawa H, Shimizu T, Asakura J, Iwashita T, Tayama Y, Hara H, Inamura M, Kanozawa K, Kato H, Mitarai T, Sanchez-Nino MD, Sanchez-Lopez E, Sanz AB, Ruiz-Ortega M, Saleem MA, Mathieson PW, Mezzano S, Egido J, Ortiz A, Liu L, Hu X, Cai GY, Lv Y, Zhuo L, Gao JJ, Cui SY, Feng Z, Fu B, Chen XM, Zaladek Gil F, Costa MC, Hirata AE, Camara NO, Chen JS, Chang LC, Shieh YS, Wu CC, Zhang L, Gu Y, Lin S, Buraczynska M, Zukowski P, Kuczmaszewska A, Ksiazek A, Kimachi M, Ito M, Sato A, Nakagaki T, Nakazawa D, Ishikawa Y, Shibasaki S, Nishio S, Koike T, Ahn EM, Choi JY, Shin JI, Ha TS, Buraczynska M, Zukowski P, Mozul S, Dragan M, Lumi Z, Liu J, Xiufen Z, Jun Q, Changying X, Zitman-Gal T, Green J, Bernheim J, Benchetrit S, Watanabe M, Nakashima H, Abe Y, Ito K, Sato T, Saito T, Riera M, Marquez E, Rigol J, Roca H, Pascual J, Soler MJ, Aizawa K, Hirata M, Moriguchi Y, Iehara N, Terada M, Matsubara T, Araki M, Torikoshi K, Doi T, Fukatsu A. Diabetes - Basic research. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Tsyusko O, Glenn T, Yi Y, Joice G, Jones K, Aizawa K, Coughlin D, Zimbrick J, Hinton T. Differential genetic responses to ionizing irradiation in individual families of Japanese medaka, Oryzias latipes. Mutation Research/Genetic Toxicology and Environmental Mutagenesis 2011; 718:18-23. [DOI: 10.1016/j.mrgentox.2010.11.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2009] [Revised: 10/15/2010] [Accepted: 11/07/2010] [Indexed: 10/18/2022]
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Tojo A, Aizawa K. Dissolution and Degradation of Bacillus thuringiensis delta-Endotoxin by Gut Juice Protease of the Silkworm Bombyx mori. Appl Environ Microbiol 2010; 45:576-80. [PMID: 16346206 PMCID: PMC242326 DOI: 10.1128/aem.45.2.576-580.1983] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The dissolution and degradation of dagger-endotoxin (crystal) of Bacillus thuringiensis subsp. kurstaki strain HD-1 were investigated. Crystals were dissolved in 0.1 M phosphate-carbonate-NaOH buffer at pH > 12. Swelling of crystals occurred in the buffer between pH 10 and 11, and crystals dissolved in the same buffer supplemented with gut juice protease of the silkworm Bombyx mori. The proteolytic dissolution of crystals occurred after a time lag of several minutes in 0.1 M carbonate-NaOH buffer, pH 10.2. The time lag was not observed when crystals were suspended in the buffer for 30 min before the addition of protease. After the dissolution of the crystals and further degradation of the solubilized protein, the appearance of a toxic protein with a molecular weight of 59,000, designated P-59, was observed. Lower-molecular-weight peptides (less than 40,000) showed no toxicity to the silkworm larvae on feeding. Digestion of the 120,000-dalton subunit of the crystal by gut juice protease also produced P-59. These observations suggest the occurrence of a similar process in vivo, i.e., the swelling of crystals due to the alkalinity of gut juice and the production of P-59, dependent on the hydrolysis of swollen crystals by gut juice protease.
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Affiliation(s)
- A Tojo
- Institute of Biological Control, Faculty of Agriculture, Kyushu University, Fukuoka 812, Japan
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Abe J, Arakawa M, Hattori T, Arima H, Kagi H, Komatsu K, Sano-Furukawa A, Uwatoko Y, Matsubayashi K, Harjo S, Moriai A, Ito T, Aizawa K, Arai M, Utsumi W. A cubic-anvil high-pressure device for pulsed neutron powder diffraction. Rev Sci Instrum 2010; 81:043910. [PMID: 20441353 DOI: 10.1063/1.3384238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A compact cubic-anvil high-pressure device was developed for in situ neutron powder diffraction studies. In this device, a cubic shaped pressure medium is compressed by six anvils, and neutron beams pass through gaps between the anvils. The first high-pressure experiment using this device was conducted at J-PARC and clearly showed the neutron diffraction patterns of Pb. Combining the cubic-anvil high-pressure device with a pulsed neutron source will prove to be a useful tool for neutron diffraction experiments.
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Affiliation(s)
- J Abe
- Quantum Beam Science Directorate, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
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Plum L, Lin HV, Aizawa K, Liu Y, Wardlaw SL, Zeltser LM, Accili D. InsR/FoxO1 signaling affects neuroanatomy of hypothalamic POMC neurons. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1254016] [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: 10/19/2022]
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Harasawa M, Obata A, Morita T, Ito T, Saito T, Sato T, Aizawa K. Hemodynamic changes in visual motion detection measured by near infrared spectroscopy. J Vis 2010. [DOI: 10.1167/6.6.572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Miura T, Izawa A, Kumazaki S, Ishii E, Otagiri K, Aizawa K, Koshikawa M, Kasai H, Tomita T, Miyashita Y, Tsutsui H, Koyama J, Ikeda U. Acute myocardial infarction in a 16-year-old girl with chronic GVHD. Bone Marrow Transplant 2010; 45:1576-7. [PMID: 20173788 DOI: 10.1038/bmt.2010.21] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Sato K, Iemitsu M, Aizawa K, Ajisaka R. DHEA improves impaired activation of Akt and PKC zeta/lambda-GLUT4 pathway in skeletal muscle and improves hyperglycaemia in streptozotocin-induced diabetes rats. Acta Physiol (Oxf) 2009; 197:217-25. [PMID: 19523145 DOI: 10.1111/j.1748-1716.2009.02011.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [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: 11/26/2022]
Abstract
AIM Addition of dehydroepiandrosterone (DHEA) to a cultured skeletal muscle locally synthesizes 5alpha-dihydrotestosterone (DHT). It induced activation of glucose metabolism-related signalling pathway via protein kinase B (Akt) and protein kinase C zeta/lambda (PKC zeta/lambda)-glucose transporter-4 (GLUT4) proteins. However, such an effect of DHEA in vivo remains unclear. METHODS Using streptozotocin (STZ)-induced rats with type 1 diabetes mellitus, we tested the hypothesis that a single bout of DHEA injection in the rats improves hyperglycaemia and muscle GLUT4-regulated signalling pathway. After 1 week of STZ injection (55 mg kg(-1)) with male Wistar rats, fasting glucose concentrations were determined in a blood sample taken from the tail vein. Blood glucose levels were then monitored for 180 min after DHEA or sesame oil (control) was injected (n = 10 for each group). RESULTS Blood glucose levels decreased significantly for 30-150 min after 2 mg DHEA injection in the STZ rats. In the skeletal muscle, expression and translocation of GLUT4 protein, phosphorylation of Akt and PKC zeta/lambda, and phosphofructokinase and hexokinase enzyme activities increased significantly by DHEA injection. However, DHEA-induced improvements in Akt and PKC zeta/lambda-GLUT4 pathways were blocked by a DHT inhibitor. CONCLUSION These results suggest that a single bout of DHEA injection can improve hyperglycaemia and activate the glucose metabolism-related signalling pathway via Akt and PKC zeta/lambda-GLUT4 proteins of skeletal muscles in rats. Moreover, these results show that a DHEA-induced increase in muscle glucose uptake and utilization might contribute to improvement in hyperglycaemia in type 1 diabetes mellitus.
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Affiliation(s)
- K Sato
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
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Akimoto T, Kim K, Yamauchi R, Izawa S, Hong C, Aizawa K, Lee H, Suzuki K. Exercise in, and adaptations to a cold environment have no effect on SIgA. J Sports Med Phys Fitness 2009; 49:315-319. [PMID: 19861939] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
AIM The authors hypothesized that inconsistent SIgA response to exercise is caused by the different adaptative status of subjects to a cold environment. The purposes of the study were to examine whether moderate-intense exercise in a cold environment decreases SIgA and whether adaptation to a cold environment has any effect on SIgA. METHODS Young male skaters, short track (N=9) and inline (N=10), participated in this study. All subjects cycled for 60 min at 65% VO(2max) in cold (ambient temperature: 5 +or - 1 degrees Celsius, relative humidity 41 + or - 9%) and thermoneutral (ambient temperature: 21 + or - 1 degrees Celsius, relative humidity 35 + or - 5%) conditions. Saliva samples were collected as follows: before and after 1hour of environmental exposure; immediately, 30-min, 60-min and 120-min after the exercise. RESULTS AND CONCLUSIONS Salivary SIgA and saliva flow rate decreased after the exercise in both groups only in thermoneutral conditions. The SIgA secretion rate did not decrease after moderate-high intensity exercise in a cold environment, and the SIgA response to exercise was not affected by the different adaptative status of subjects to the cold environment.
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Affiliation(s)
- T Akimoto
- Laboratory of Regenerative Medical Engineering, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan.
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Mothersill C, Smith RW, Hinton TG, Aizawa K, Seymour CB. Communication of radiation-induced signals in vivo between DNA repair deficient and proficient medaka (Oryzias latipes). Environ Sci Technol 2009; 43:3335-3342. [PMID: 19534155 DOI: 10.1021/es8035219] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Radiation-induced bystander effects are established consequences of exposure to ionizing radiation. The operation of this mechanism has been seen in vitro and also between fish, mammals, and plants in vive where stress signals from treated organisms induce responses in neighbors. In vitro research shows that DNA repair deficient cells produce more toxic bystander responses. To test this in vivo two strains of Japanese medaka were tested. One is a mutant, repair deficient strain (ric2) and the other, the wildtype repair proficient strain (CAB). Irradiated fish swam with unirradiated partners in a strain mix and match protocol. The data suggest that medaka produce signals, when exposed to radiation, that induce unirradiated fish ofthe same strain swimming with them to produce an altered response to that seen in bystanders to sham irradiated fish. More apoptosis was seen in bystanders to repair deficient fish. When the strains are mixed, the bystanders of either strain respond like the donor strain. Measurements of Bcl-2 and cmyc proteins in the explants confirmed these observations. A possible role for p53 was also identified in that the use of reporters with mutant p53 demonstrated that CAB signals killed all the reporter cells by apoptosis. Use of a similar but p53 wildtype cell line had no such effect. The data add to the body of knowledge showing that bystander signals operate at hierarchical levels of organization greater than the individual and may therefore have relevance in radioecology and (eco)systems biology.
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Affiliation(s)
- C Mothersill
- McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada.
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Kukidome T, Shirai K, Kubo J, Matsushima Y, Yanagisawa O, Homma T, Aizawa K. MRI evaluation of body composition changes in wrestlers undergoing rapid weight loss. Br J Sports Med 2008; 42:814-8. [DOI: 10.1136/bjsm.2007.044081] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ishigaki T, Hoshikawa A, Yonemura M, Iwase K, Adipranoto D, Wuernisha T, Morishima T, Oishi R, Kamiyama T, Aizawa K, Arai M, Hayashi M, Ebata K, Takano Y, Kasao T. The current status of iMATERIA – versatile neutron diffractometer at J-PARC. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308094075] [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: 11/10/2022] Open
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Kimura F, Aizawa K, Tanabe K, Shimizu K, Kon M, Lee H, Akimoto T, Akama T, Kono I. A rat model of saliva secretory immunoglobulin: a suppression caused by intense exercise. Scand J Med Sci Sports 2008; 18:367-72. [PMID: 17555544 DOI: 10.1111/j.1600-0838.2007.00642.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We aimed to develop a valid model of immunosuppression induced by intense exercise in rats. Rats were divided into three groups. In the rest (Rest) group, saliva was collected from resting rats on 4 consecutive days. In the exercise (Ex) group, rats ran on a treadmill until exhaustion (exercise time: 60.0 +/- 3.7 min), and their saliva was collected before and after exercise; the salivary glands were removed after exercise. In the control (Con) group, saliva collection and gland removal were also performed, but the rats did not exercise. Secretory immunoglobulin A (SIgA) concentrations in saliva and polymeric immunoglobulin receptor (pIgR) mRNA expression in the glands were measured. There was no significant change in SIgA concentration in the Rest group over 4 days. In the Ex group, SIgA concentration decreased significantly after exercise compared with before, whereas there was no significant change in the Con group. The expression of pIgR mRNA was significantly lower in the Ex group post-exercise than in the Con group. Our procedure for saliva collection appeared suitable, and the exercise-induced SIgA suppression was probably caused by a decline in pIgR mRNA expression. We propose to use this reproducible and reliable rat model of exercise-induced SIgA suppression in future studies.
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Affiliation(s)
- F Kimura
- Graduate School of Comprehensive Human Sciences, Tsukuba University, Tsukuba, Japan
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Aizawa K, Ohki SI, Konishi H, Misawa Y. Extraanatomical ascending-abdominal aorta bypass with stump closure for aortic graft infection. Interact Cardiovasc Thorac Surg 2008; 7:646-7. [DOI: 10.1510/icvts.2008.178699] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Aizawa K, Tateishi A, Sakano Y, Kaminishi Y, Ohki S, Saito T, Konishi H, Kawada M, Misawa Y. [Repair of paravalvular leak after a third mitral valve replacement]. Kyobu Geka 2007; 60:903-5. [PMID: 17877009] [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] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
This study reports on a 57-year-old woman who underwent a 3rd mitral valve replacement and presented with complaints of fatigue. Laboratory examination revealed severe hemolytic anemia, and trans-esophageal echocardiography revealed a paravalvular leak (PVL) around the prosthetic valve at the posterior trigone in the mitral position. PVL was regarded as the cause of hemolytic anemia. At surgery, a small tissue defect was detected around the calcified posterior trigone of the mitral annulus with no evidence of infective endocarditis. The mitral PVL was successfully repaired with suture closure of the annular defect. The postoperative course was uneventful: postoperative echocardiography revealed no evidence of PVL, and the hemolytic anemia subsided.
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Affiliation(s)
- K Aizawa
- Division of Cardiovascular Surgery, Jichi Medical University, Shimotsuke, Japan
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41
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Taguchi M, Konishi H, Shinohara T, Aizawa K, Takahashi H, Tateishi A, Sakano Y, Kaminishi Y, Ohki S, Saito T, Kawada M, Misawa Y. [Ascending aortic aneurysm following aortic valve replacement due to aortitis syndrome; report of a case]. Kyobu Geka 2006; 59:1103-5. [PMID: 17094550] [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] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A 60-year-old woman had previously undergone aortic valve replacement for aortic regurgitation. As the aortic wall was elastic hard, inflammatory change was suspected; therefore, we undertook a partial biopsy of the ascending aortic wall and the intraoperative pathological specimens were compatible with aortitis syndrome. As there was no active inflammatory change, she was diagnosed as inactive aortitis syndrome and steroid therapy was not applied. Seven years later, a follow-up computed tomography (CT) showed an ascending aortic aneurysm of 65 mm in diameter. Aortic root replacement was planned based on a clinical diagnosis of an aneurysm of the ascending aorta. The patient was discharged without complication 21 days after surgery. It is possible that an inactive stage of aortitis may lead to late dilatation of the ascending aorta; therefore, careful postoperative follow-up is necessary in such cases.
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Affiliation(s)
- M Taguchi
- Division of Cardiovascular Surgery, Jichi Medical School, Shimotsuke, Japan
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42
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Aizawa K, Nakahori C, Akimoto T, Kimura F, Hayashi K, Kono I, Mesaki N. Changes of pituitary, adrenal and gonadal hormones during competition among female soccer players. J Sports Med Phys Fitness 2006; 46:322-7. [PMID: 16823365] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
AIM This study was intended to investigate various hormones during competition among female athletes. METHODS Subjects were elite female soccer players (n=9). Blood samples and profiles of mood states (POMS) were obtained before (Pre), during 3 days of competition (Competition), and after competition (Post-3 days). Serum concentrations were determined for dehydroepiandrosterone sulfate (DHEAS), cortisol (C), prolactin (PRL), testosterone (T), adrenocorticotropic hormone (ACTH), luteinising hormone (LH), and follicle stimulating hormone (FSH). RESULTS Levels of C and PRL increased significantly during competition (2nd: P<0.05; 3rd: P<0.01) compared with Pre. Levels of LH increased significantly during competition (3rd day) compared with Pre (P<0.05). Levels of DHEAS changed significantly during competition, whereas levels of T, ACTH, and FSH were unchanged during competition. The fatigue score of POMS increased significantly during competition (2nd day) compared with Pre (P<0.05). CONCLUSIONS We demonstrated that competitive stress affected hormonal status in female athletes. These findings suggest that hormonal changes reflect physical and mental stress during competition.
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Affiliation(s)
- K Aizawa
- University of Tsukuba Graduate School of Comprehensive Human Sciences, Tsukuba, Japan
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43
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Taguchi M, Kaminishi Y, Konishi H, Aizawa K, Sakano Y, Ohki S, Saito T, Kato M, Misawa Y. [Cardiac papillary fibroelastomas: report of 2 cases]. Kyobu Geka 2005; 58:1163-5. [PMID: 16359018] [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] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
We report 2 cases of cardiac papillary fibroelastomas in adults. Case 1: A 61-year-old man was admitted because echocardiography showed a 1 cm pedunculated papillary tumor in the left atrium. In an operation, it was located in the left atrium near the mitral valve and was resected along with a 5 mm margin of endocardium. Case 2: A 60-year-old woman had a 1 cm mobile tumor in the right ventricle near the tricuspid valve located by echocardiography in a preoperative examination of a ventricular septal defect. In an operation, a pedunculated tumor located in the right ventricle was resected. In these 2 cases, histopathology showed the tumor to be a papillary fibroelastoma. Almost all cardiac papillary fibroelastoma are closely related to the cardiac valve, but in these cases, the tumors were located in the left atrium, and the right ventricle, respectively, which is quite rare.
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Affiliation(s)
- Masanobu Taguchi
- Division off Cardiovascular Surgery, Jichi Medical School, Tochigi, Japan
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44
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Abstract
Structural remodeling of the heart and blood vessels is an important pathologic process in the development of many cardiovascular diseases. However, transcriptional regulation of altered gene expression during cardiovascular remodeling is not well understood. We previously isolated KLF5/basic transcription element-binding (BTEB)2, a Krüppel-like factor, as a transcription factor that binds the promoter of the embryonic smooth muscle myosin heavy chain gene (SMemb). KLF5 activates many genes inducible during cardiovascular remodeling, such as platelet-derived growth factor (PDGF)-A/B, Egr-1, plasminogen activator inhibitor-1 (PAI-1), inducible nitric oxide synthase (iNOS), and vascular endothelial growth factor (VEGF) receptors. KLF5 is abundantly expressed in embryonic smooth muscles and is down-regulated with vascular development, but reinduced in proliferative neointimal smooth muscles in response to vascular injury. In KLF5 gene-targeted mice, homozygotes die at an early embryonic stage whereas heterozygotes are apparently normal. However, in response to external stress, arteries of heterozygotes exhibit diminished levels of smooth muscle and adventitial cell activation. Furthermore, angiotensin II-induced cardiac hypertrophy and fibrosis are attenuated in heterozygotes. KLF5 activities are regulated by many transcriptional regulators and nuclear receptors, such as retinoic acid receptor-alpha (RAR alpha), NF-kappaB, PPAR gamma, p300, and SET. Interestingly, RAR alpha agonist suppresses KLF5 and cardiovascular remodeling, whereas RAR alpha antagonist activates KLF5 and induces angiogenesis. These results indicate that KLF5 is an essential transcription factor in cardiovascular remodeling and a potential therapeutic target for cardiovascular disease.
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Affiliation(s)
- R Nagai
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
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45
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Furukawa Y, Kawakami S, Aizawa K, Kumagai K, Borsa F. Isotope substitution effects on spin dynamics of the molecular nanomagnet Fe8 cluster studied by NMR. Polyhedron 2003. [DOI: 10.1016/s0277-5387(03)00224-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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46
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Okazaki Y, Furuno M, Kasukawa T, Adachi J, Bono H, Kondo S, Nikaido I, Osato N, Saito R, Suzuki H, Yamanaka I, Kiyosawa H, Yagi K, Tomaru Y, Hasegawa Y, Nogami A, Schönbach C, Gojobori T, Baldarelli R, Hill DP, Bult C, Hume DA, Quackenbush J, Schriml LM, Kanapin A, Matsuda H, Batalov S, Beisel KW, Blake JA, Bradt D, Brusic V, Chothia C, Corbani LE, Cousins S, Dalla E, Dragani TA, Fletcher CF, Forrest A, Frazer KS, Gaasterland T, Gariboldi M, Gissi C, Godzik A, Gough J, Grimmond S, Gustincich S, Hirokawa N, Jackson IJ, Jarvis ED, Kanai A, Kawaji H, Kawasawa Y, Kedzierski RM, King BL, Konagaya A, Kurochkin IV, Lee Y, Lenhard B, Lyons PA, Maglott DR, Maltais L, Marchionni L, McKenzie L, Miki H, Nagashima T, Numata K, Okido T, Pavan WJ, Pertea G, Pesole G, Petrovsky N, Pillai R, Pontius JU, Qi D, Ramachandran S, Ravasi T, Reed JC, Reed DJ, Reid J, Ring BZ, Ringwald M, Sandelin A, Schneider C, Semple CAM, Setou M, Shimada K, Sultana R, Takenaka Y, Taylor MS, Teasdale RD, Tomita M, Verardo R, Wagner L, Wahlestedt C, Wang Y, Watanabe Y, Wells C, Wilming LG, Wynshaw-Boris A, Yanagisawa M, Yang I, Yang L, Yuan Z, Zavolan M, Zhu Y, Zimmer A, Carninci P, Hayatsu N, Hirozane-Kishikawa T, Konno H, Nakamura M, Sakazume N, Sato K, Shiraki T, Waki K, Kawai J, Aizawa K, Arakawa T, Fukuda S, Hara A, Hashizume W, Imotani K, Ishii Y, Itoh M, Kagawa I, Miyazaki A, Sakai K, Sasaki D, Shibata K, Shinagawa A, Yasunishi A, Yoshino M, Waterston R, Lander ES, Rogers J, Birney E, Hayashizaki Y. Analysis of the mouse transcriptome based on functional annotation of 60,770 full-length cDNAs. Nature 2002; 420:563-73. [PMID: 12466851 DOI: 10.1038/nature01266] [Citation(s) in RCA: 1226] [Impact Index Per Article: 55.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2002] [Accepted: 10/28/2002] [Indexed: 01/10/2023]
Abstract
Only a small proportion of the mouse genome is transcribed into mature messenger RNA transcripts. There is an international collaborative effort to identify all full-length mRNA transcripts from the mouse, and to ensure that each is represented in a physical collection of clones. Here we report the manual annotation of 60,770 full-length mouse complementary DNA sequences. These are clustered into 33,409 'transcriptional units', contributing 90.1% of a newly established mouse transcriptome database. Of these transcriptional units, 4,258 are new protein-coding and 11,665 are new non-coding messages, indicating that non-coding RNA is a major component of the transcriptome. 41% of all transcriptional units showed evidence of alternative splicing. In protein-coding transcripts, 79% of splice variations altered the protein product. Whole-transcriptome analyses resulted in the identification of 2,431 sense-antisense pairs. The present work, completely supported by physical clones, provides the most comprehensive survey of a mammalian transcriptome so far, and is a valuable resource for functional genomics.
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MESH Headings
- Alternative Splicing/genetics
- Amino Acid Motifs
- Animals
- Chromosomes, Mammalian/genetics
- Cloning, Molecular
- DNA, Complementary/genetics
- Databases, Genetic
- Expressed Sequence Tags
- Genes/genetics
- Genomics/methods
- Humans
- Membrane Proteins/genetics
- Mice/genetics
- Physical Chromosome Mapping
- Protein Structure, Tertiary
- Proteome/chemistry
- Proteome/genetics
- RNA, Antisense/genetics
- RNA, Messenger/analysis
- RNA, Messenger/genetics
- RNA, Untranslated/analysis
- RNA, Untranslated/genetics
- Transcription Initiation Site
- Transcription, Genetic/genetics
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Affiliation(s)
- Y Okazaki
- [1] Laboratory for Genome Exploration Research Group, RIKEN Genomic Sciences Center, RIKEN Yokohama Institute 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
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47
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Nakamura H, Suzuki Y, Takeichi M, Saito T, Takayama M, Aizawa K. Morphologic evaluation of the antitumor activity of photodynamic therapy (PDT) using mono-L-aspartyl chlorin e6 (NPe6) against uterine cervical carcinoma cell lines. Int J Gynecol Cancer 2002; 12:177-86. [PMID: 11975677 DOI: 10.1046/j.1525-1438.2002.01087.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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: 11/20/2022] Open
Abstract
In order to elucidate the antitumor effect and mechanism of action of photodynamic therapy (PDT) using the photosensitizing agent mono-L-aspartyl chlorin e6 (NPe6) and a semiconductor laser, we conducted a morphologic study on uterine cervical cancer cell lines. First, tumor shrinkage was confirmed in a tumor growth inhibition test. Next, morphologic changes after PDT were examined, and since the major change appeared to be tumor necrosis secondary to obstruction of the blood vessels around the tumor, an NPe6 cell uptake experiment was performed. The results confirmed that a significantly greater amount of NPe6 was incorporated by human umbilical vein endothelial cells (HUV-EC1) and the cervical cancer cell lines than by human umbilical cord-derived fibroblasts. Based on these findings it was concluded that NPe6 possesses tumor affinity, and necrosis secondary to vascular obstruction was postulated to be the principal mechanism of the antitumor effect of PDT using NPe6.
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Affiliation(s)
- Hiroshi Nakamura
- Department of Obstetrics and Gynecology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan.
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Watanabe M, Kajiwara H, Awazu K, Aizawa K. Bilirubin calculi crushing by laser irradiation at a molecular oscillating region wavelength based on infrared absorption spectrum analysis using a free-electron laser: an experimental study. Surg Today 2002; 31:626-33. [PMID: 11495158 DOI: 10.1007/s005950170097] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
We investigated a new laser technique of crushing bilirubin calculi, our aim being to crush calculi in isolation using a minimally invasive procedure. Infrared absorption spectrum analysis of the bilirubin calculi was conducted, revealing maximum absorption spectrum at a wavelength of the C=O stretching vibration of ester binding that exists within the molecular structure of bilirubin calcium. As an experiment to crush calculi using the free-electron laser, we set the laser at the effective irradiation wavelength of ester binding, and conducted noncontact irradiation of the bilirubin calculi. The calculi began to slowly ablate until the irradiated site had been completely obliterated after 20s of irradiation. Moreover, absorption spectrum analysis of the irradiated site, from a comparison of absorption peak ratios, revealed that absorption peak intensities decreased over time at the absorption wavelength of ester binding. These findings suggest that irradiation of molecular oscillating region wavelengths peculiar to calculi based on infrared absorption spectrum analysis results in the gradual crushing of calculi in isolation by breaking down their molecular structure.
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Affiliation(s)
- M Watanabe
- Third Department of Surgery, Toho University School of Medicine, Japan
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49
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Kiho T, Kochi M, Usui S, Hirano K, Aizawa K, Inakuma T. Antidiabetic effect of an acidic polysaccharide (TAP) from Tremella aurantia and its degradation product (TAP-H). Biol Pharm Bull 2001; 24:1400-3. [PMID: 11767110 DOI: 10.1248/bpb.24.1400] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [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: 11/22/2022]
Abstract
Continuous oral administration of the acidic polysaccharide (TAP) solution (0.5 g/l) and the TAP-H (degradation products of TAP) solution (1.5 g/l) instead of water for 10 weeks were found to depress plasma glucose increases in diabetes using genetically non-insulin-dependent diabetic model (KK-Ay) mice. TAP and TAP-H significantly lowered levels of insulin, total-cholesterol and triglyceride in the blood of the mice. In excretion to feces, TAP and TAP-H significantly increased the total bile acid, while the cholesterol content of both groups was less than that of the control. Furthermore, TAP and TAP-H significantly decreased the plasma lipoperoxide level. The study shows that TAP and TAP-H have an antidiabetic effect on diabetes model mice.
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Affiliation(s)
- T Kiho
- Gifu Pharmaceutical University, Japan.
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50
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Nagai R, Suzuki T, Aizawa K, Miyamoto S, Amaki T, Kawai-Kowase K, Sekiguchi KI, Kurabayashi M. Phenotypic modulation of vascular smooth muscle cells: dissection of transcriptional regulatory mechanisms. Ann N Y Acad Sci 2001; 947:56-66; discussion 66-7. [PMID: 11795310 DOI: 10.1111/j.1749-6632.2001.tb03930.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [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: 01/12/2023]
Abstract
The smooth muscle myosin heavy chain (MHC) gene and its isoforms are excellent molecular markers that reflect smooth muscle phenotypes. The SMemb/Nonmuscle Myosin Heavy Chain B (NMHC-B) is a distinct MHC gene expressed predominantly in phenotypically modulated SMCs (synthetic-type SMC). To dissect the molecular mechanisms governing phenotypic modulation of SMCs, we analyzed the transcriptional regulatory mechanisms underlying expression of the SMemb gene. We previously reported two transcription factors, BTEB2/IKLF and Hex, which transactivate the SMemb gene promoter based on the transient reporter transfection assays. BTEB2/IKLF is a zinc finger transcription factor, whereas Hex is a homeobox protein. BTEB2/IKLF expression in SMCs is downregulated with vascular development in vivo but upregulated in cultured SMCs and in neointima in response to vascular injury after balloon angioplasty. BTEB2/IKLF and Hex activate not only the SMemb gene but also other genes activated in synthetic SMCs including plasminogen activator inhibitor-1 (PAI-1), iNOS, PDGF-A, Egr-1, and VEGF receptors. Mitogenic stimulation activates BTEB2/IKLF gene expression through MEK1 and Egr-1. Elevation of intracellular cAMP is also important in phenotypic modulation of SMCs, because the SMemb promoter is activated under cooperatively by cAMP-response element binding protein (CREB) and Hex.
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Affiliation(s)
- R Nagai
- Department of Cardiovascular Medicine, University of Tokyo, Japan
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