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Nakano A, Ueno HM, Kawata D, Tatara Y, Tamada Y, Mikami T, Murashita K, Nakaji S, Itoh K. Dairy consumption, bone turnover biomarkers, and osteo sono assessment index in Japanese adults: A cross-sectional analysis of data from the Iwaki Health Promotion Project. Bone Rep 2024; 21:101770. [PMID: 38736771 PMCID: PMC11087920 DOI: 10.1016/j.bonr.2024.101770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 04/17/2024] [Accepted: 04/26/2024] [Indexed: 05/14/2024] Open
Abstract
Purpose Dairy foods are nutritional sources of calcium, phosphorus, protein, and other nutrients that improve bone health. However, the effects of dairy consumption on bone biomarkers in the Japanese population remain unclear. This study explored the association between dairy consumption and bone biomarkers in Japanese adults. Methods This cross-sectional study was conducted as part of the Iwaki Health Promotion Project in Aomori, Japan. In total, 1063 adults were included in the analysis. Bone turnover marker levels were measured in local citizens during their annual medical checkups. The calcaneus osteo sono assessment index (OSI) was calculated using a quantitative ultrasound technique. The dietary intake of foods and nutrients was estimated using a food frequency questionnaire. Linear regression models were established using dairy consumption and bone biomarkers with adjustments. Statistic significance was considered by P < 0.05. Results In multivariate models, the tartrate-resistant acid phosphatase 5b and parathyroid hormone concentrations were inversely associated with dietary dairy consumption after adjusting for age and sex. The undercarboxylated osteocalcin, a procollagen type I N-terminal peptide to bone alkaline phosphatase ratio, and OSI were the directly associated with dairy consumption in multivariate models with adjustment. Conclusions Dairy consumption is partially associated with bone turnover biomarkers and OSI in adult Japanese participants. Habitual consumption of dairy foods may contribute to the nutritional supplementation for maintaining bone health, including turnover and structure. Clinical trial registry number and website where it was obtained The Japanese Clinical Trials Registry (UMIN000040459), https://center6.umin.ac.jp/cgi-open-bin/ctr/ctr_view.cgi?recptno=R000046175.
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Affiliation(s)
- Ayatake Nakano
- Milk Science Research Institute, Megmilk Snow Brand Co., Ltd., Kawagoe, Japan
- Department of Precision Nutrition for Dairy Foods, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hiroshi M. Ueno
- Milk Science Research Institute, Megmilk Snow Brand Co., Ltd., Kawagoe, Japan
- Department of Precision Nutrition for Dairy Foods, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Daisuke Kawata
- Milk Science Research Institute, Megmilk Snow Brand Co., Ltd., Kawagoe, Japan
- Department of Precision Nutrition for Dairy Foods, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yota Tatara
- Department of Precision Nutrition for Dairy Foods, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yoshinori Tamada
- Department of Precision Nutrition for Dairy Foods, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
- Research Center for Health-Medical Data Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Tatsuya Mikami
- Department of Precision Nutrition for Dairy Foods, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Koichi Murashita
- Department of Precision Nutrition for Dairy Foods, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
- Research Institute of Health Innovation, Hirosaki University, Hirosaki, Japan
| | - Shigeyuki Nakaji
- Department of Precision Nutrition for Dairy Foods, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ken Itoh
- Department of Precision Nutrition for Dairy Foods, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
- Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Linker TM, Krishnamoorthy A, Daemen LL, Ramirez-Cuesta AJ, Nomura K, Nakano A, Cheng YQ, Hicks WR, Kolesnikov AI, Vashishta PD. Neutron scattering and neural-network quantum molecular dynamics investigation of the vibrations of ammonia along the solid-to-liquid transition. Nat Commun 2024; 15:3911. [PMID: 38724541 PMCID: PMC11082248 DOI: 10.1038/s41467-024-48246-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 04/25/2024] [Indexed: 05/12/2024] Open
Abstract
Vibrational spectroscopy allows us to understand complex physical and chemical interactions of molecular crystals and liquids such as ammonia, which has recently emerged as a strong hydrogen fuel candidate to support a sustainable society. We report inelastic neutron scattering measurement of vibrational properties of ammonia along the solid-to-liquid phase transition with high enough resolution for direct comparisons to ab-initio simulations. Theoretical analysis reveals the essential role of nuclear quantum effects (NQEs) for correctly describing the intermolecular spectrum as well as high energy intramolecular N-H stretching modes. This is achieved by training neural network models using ab-initio path-integral molecular dynamics (PIMD) simulations, thereby encompassing large spatiotemporal trajectories required to resolve low energy dynamics while retaining NQEs. Our results not only establish the role of NQEs in ammonia but also provide general computational frameworks to study complex molecular systems with NQEs.
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Affiliation(s)
- T M Linker
- Collaboratory for Advanced Computing and Simulations, University of Southern California, Los Angeles, CA, 90089-0242, USA
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California, 94025, USA
| | - A Krishnamoorthy
- Department of Mechanical Engineering Texas A&M, 400 Bizzell St, College Station, TX, 77843, USA
| | - L L Daemen
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - A J Ramirez-Cuesta
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - K Nomura
- Collaboratory for Advanced Computing and Simulations, University of Southern California, Los Angeles, CA, 90089-0242, USA
| | - A Nakano
- Collaboratory for Advanced Computing and Simulations, University of Southern California, Los Angeles, CA, 90089-0242, USA
| | - Y Q Cheng
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
| | - W R Hicks
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - A I Kolesnikov
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
| | - P D Vashishta
- Collaboratory for Advanced Computing and Simulations, University of Southern California, Los Angeles, CA, 90089-0242, USA.
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3
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Park J, Bushita H, Nakano A, Hara A, Ueno HM, Ozato N, Hosomi K, Kawashima H, Chen YA, Mohsen A, Ohno H, Konishi K, Tanisawa K, Nanri H, Murakami H, Miyachi M, Kunisawa J, Mizuguchi K, Araki M. Ramen Consumption and Gut Microbiota Diversity in Japanese Women: Cross-Sectional Data from the NEXIS Cohort Study. Microorganisms 2023; 11:1892. [PMID: 37630452 PMCID: PMC10458504 DOI: 10.3390/microorganisms11081892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/20/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
A cross-sectional study involving 224 healthy Japanese adult females explored the relationship between ramen intake, gut microbiota diversity, and blood biochemistry. Using a stepwise regression model, ramen intake was inversely associated with gut microbiome alpha diversity after adjusting for related factors, including diets, Age, BMI, and stool habits (β = -0.018; r = -0.15 for Shannon index). The intake group of ramen was inversely associated with dietary nutrients and dietary fiber compared with the no-intake group of ramen. Sugar intake, Dorea as a short-chain fatty acid (SCFA)-producing gut microbiota, and γ-glutamyl transferase as a liver function marker were directly associated with ramen intake after adjustment for related factors including diets, gut microbiota, and blood chemistry using a stepwise logistic regression model, whereas Dorea is inconsistently less abundant in the ramen group. In conclusion, the increased ramen was associated with decreased gut bacterial diversity accompanying a perturbation of Dorea through the dietary nutrients, gut microbiota, and blood chemistry, while the methodological limitations existed in a cross-sectional study. People with frequent ramen eating habits need to take measures to consume various nutrients to maintain and improve their health, and dietary management can be applied to the dietary feature in ramen consumption.
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Affiliation(s)
- Jonguk Park
- Artificial Intelligence Center for Health and Biomedical Research, National Institutes of Biomedical Innovation, Health and Nutrition, 3-17 Senrioka-shinmachi, Settsu 566-0002, Osaka, Japan
- International Life Sciences Institute (ILSI) Japan, Gobel Building 3-13-5, Morishita, Koto 135-0004, Tokyo, Japan
| | - Hiroto Bushita
- International Life Sciences Institute (ILSI) Japan, Gobel Building 3-13-5, Morishita, Koto 135-0004, Tokyo, Japan
- Health & Wellness Products Research Laboratories, Kao Corporation, Tokyo 131-8501, Japan
| | - Ayatake Nakano
- International Life Sciences Institute (ILSI) Japan, Gobel Building 3-13-5, Morishita, Koto 135-0004, Tokyo, Japan
- Milk Science Research Institute, Megmilk Snow Brand Co., Ltd., 1-1-2 Minamidai, Kawagoe 350-1165, Saitama, Japan
| | - Ai Hara
- International Life Sciences Institute (ILSI) Japan, Gobel Building 3-13-5, Morishita, Koto 135-0004, Tokyo, Japan
- Future Design Division, The KAITEKI Institute, Inc., Palace Building 1-1, Marunouchi 1-chome, Chiyoda 100-8251, Tokyo, Japan
| | - Hiroshi M. Ueno
- International Life Sciences Institute (ILSI) Japan, Gobel Building 3-13-5, Morishita, Koto 135-0004, Tokyo, Japan
- Milk Science Research Institute, Megmilk Snow Brand Co., Ltd., 1-1-2 Minamidai, Kawagoe 350-1165, Saitama, Japan
| | - Naoki Ozato
- International Life Sciences Institute (ILSI) Japan, Gobel Building 3-13-5, Morishita, Koto 135-0004, Tokyo, Japan
- Health & Wellness Products Research Laboratories, Kao Corporation, Tokyo 131-8501, Japan
| | - Koji Hosomi
- Laboratory of Vaccine Materials and Laboratory of Gut Environmental System, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saito-Asagi, Ibaraki 567-0085, Osaka, Japan
| | - Hitoshi Kawashima
- Artificial Intelligence Center for Health and Biomedical Research, National Institutes of Biomedical Innovation, Health and Nutrition, 3-17 Senrioka-shinmachi, Settsu 566-0002, Osaka, Japan
| | - Yi-An Chen
- Artificial Intelligence Center for Health and Biomedical Research, National Institutes of Biomedical Innovation, Health and Nutrition, 3-17 Senrioka-shinmachi, Settsu 566-0002, Osaka, Japan
| | - Attayeb Mohsen
- Artificial Intelligence Center for Health and Biomedical Research, National Institutes of Biomedical Innovation, Health and Nutrition, 3-17 Senrioka-shinmachi, Settsu 566-0002, Osaka, Japan
| | - Harumi Ohno
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition, 3-17 Senrioka-shinmachi, Settsu 566-0002, Osaka, Japan
- Department of Nutrition, Kiryu University, 606-7 Azami, Kasakake-machi, Midori 379-2392, Gunma, Japan
| | - Kana Konishi
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition, 3-17 Senrioka-shinmachi, Settsu 566-0002, Osaka, Japan
- Faculty of Food and Nutritional Sciences, Toyo University, 1-1-1 Izumino, Itakura, Oura 374-0193, Gunma, Japan
| | - Kumpei Tanisawa
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition, 3-17 Senrioka-shinmachi, Settsu 566-0002, Osaka, Japan
- Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa 359-1192, Saitama, Japan
| | - Hinako Nanri
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition, 3-17 Senrioka-shinmachi, Settsu 566-0002, Osaka, Japan
| | - Haruka Murakami
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition, 3-17 Senrioka-shinmachi, Settsu 566-0002, Osaka, Japan
- Faculty of Sport and Health Science, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-8577, Shiga, Japan
| | - Motohiko Miyachi
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition, 3-17 Senrioka-shinmachi, Settsu 566-0002, Osaka, Japan
- Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa 359-1192, Saitama, Japan
| | - Jun Kunisawa
- Laboratory of Vaccine Materials and Laboratory of Gut Environmental System, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saito-Asagi, Ibaraki 567-0085, Osaka, Japan
- International Research and Development Center for Mucosal Vaccines, Institute of Medical Science, University of Tokyo, 4-6-1 Shirokanedai, Minato 108-8639, Tokyo, Japan
- Graduate School of Medicine, Graduate School of Pharmaceutical Sciences, Graduate School of Dentistry, Graduate School of Sciences, Osaka University, 1-1 Yamadaoka, Suita 565-0871, Osaka, Japan
- Department of Microbiology and Immunology, Graduate School of Medicine, Kobe University, 7-5-1 Kusunoki, Chuo, Kobe 650-0017, Hyogo, Japan
- Research Organization for Nano and Life Innovation, Waseda University, 513 Waseda-Tsurumaki, Shinjuku 162-0041, Tokyo, Japan
| | - Kenji Mizuguchi
- Artificial Intelligence Center for Health and Biomedical Research, National Institutes of Biomedical Innovation, Health and Nutrition, 3-17 Senrioka-shinmachi, Settsu 566-0002, Osaka, Japan
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita 565-0871, Osaka, Japan
| | - Michihiro Araki
- Artificial Intelligence Center for Health and Biomedical Research, National Institutes of Biomedical Innovation, Health and Nutrition, 3-17 Senrioka-shinmachi, Settsu 566-0002, Osaka, Japan
- Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Hyogo, Japan
- National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shinmachi, Suita 564-8565, Osaka, Japan
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Thygesen LC, Zinckernagel L, Dalal H, Egstrup K, Glumer C, Gronbaek M, Holmberg T, Kober L, La Cour K, Nakano A, Nielsen CV, Sibilitz KL, Tolstrup JS, Zwisler AD, Taylor RS. Cardiac rehabilitation for patients with heart failure: a national Danish register-based study of predictors of referral and outcomes. Eur J Cardiovasc Nurs 2021. [DOI: 10.1093/eurjcn/zvab060.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Foundation. Main funding source(s): The Danish Heart Foundation
Background
Heart failure (HF) places a large burden on patients and society as a major cause of morbidity, mortality and healthcare costs. Participation in exercise-based cardiac rehabilitation (CR) in people with HF is a clinically and cost-effective strategy and recommended in international clinical guidelines.
Purpose
The aims of this study were to: (1) examine the temporal trends and predictors of national CR referral, and (2) compare the risk of hospital readmission and mortality in those referred for CR compared to no referral.
Methods
All patients in Denmark with incident HF were identified by the Danish Heart Failure Register in the period 2010 to 2018 (n = 33,257) and CR referral assessed within 120 days of hospital admission. Multivariable logistic regression models were used to evaluate the association between CR referral and predictors and to compare risk of hospital readmission and mortality until 1 year between referred and not referred patients.
Results
Overall, 45.0% of HF patients were referred to exercise-based CR, increasing from 31.7% in 2010 to 52.2% in 2018. Factors independently associated with higher CR referral were: NYHA functional class II, LVEF <50%, diagnosis of myocardial infarction and use of ACE inhibitor. Male gender, older age, region, unemployment, retirement, living alone, non-Danish ethnic origin, lower educational level, NYHA class IV, treatment for hypertension, existing chronic obstructive lung disease and stroke were associated with lower CR referral. CR referral was associated with lower risk of readmission (adjusted odds ratio: 0.90;95%CI: 0.85-0.95), HF-specific mortality (0.61; 0.39-0.95) and all-cause mortality (0.61; 0.55-0.69) as compared to no referral.
Conclusions
Although CR referral has increased over time, only some 1 in 2 diagnosed HF patients in Denmark are referred to exercise-based CR. CR referral is associated with lower risk in readmissions and mortality. Strategies to promote CR referral including healthcare professional education on the benefits of CR and alternative methods of CR delivery are urgently needed to improve access to CR, especially for high-risk groups.
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Affiliation(s)
- LC Thygesen
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | - L Zinckernagel
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | - H Dalal
- University of Exeter Medical School, Knowledge Spa, Royal Cornwall Hospital, Truro, United Kingdom of Great Britain & Northern Ireland
| | - K Egstrup
- Department of Cardiovascular Research, Odense University Hospital, Svendborg, Denmark
| | - C Glumer
- Center for diabetes in the city of Copenhagen, Copenhagen, Denmark
| | - M Gronbaek
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | - T Holmberg
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | - L Kober
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - K La Cour
- Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - A Nakano
- The Danish Clinical Registries (RKKP), Aarhus, Denmark
| | - CV Nielsen
- DEFACTUM, Regional Hospital West Jutland, Central Denmark Region, Institute of Public Health, Aarhus University, Aarhus, Denmark
| | - KL Sibilitz
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - JS Tolstrup
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | - AD Zwisler
- REHPA The Danish Knowledge Centre for Rehabilitation and Palliative Care, Odense University Hospital, Department of Clinical Research, University of Southern Denmark, Nyborg, Denmark
| | - RS Taylor
- Institute of Health and Well Being, University of Glasgow, Glasgow, United Kingdom of Great Britain & Northern Ireland
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Yano H, Nakano R, Suzuki Y, Nakano A, Kasahara K, Hosoi H. Inactivation of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by gaseous ozone treatment. J Hosp Infect 2020; 106:837-838. [PMID: 33049366 PMCID: PMC7547371 DOI: 10.1016/j.jhin.2020.10.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 10/03/2020] [Accepted: 10/05/2020] [Indexed: 11/29/2022]
Affiliation(s)
- H Yano
- Department of Microbiology and Infectious Diseases, Nara Medical University, Nara, Japan
| | - R Nakano
- Department of Microbiology and Infectious Diseases, Nara Medical University, Nara, Japan.
| | - Y Suzuki
- Department of Microbiology and Infectious Diseases, Nara Medical University, Nara, Japan
| | - A Nakano
- Department of Microbiology and Infectious Diseases, Nara Medical University, Nara, Japan
| | - K Kasahara
- Center for Infectious Diseases, Nara Medical University, Nara, Japan
| | - H Hosoi
- MBT (Medicine-Based Town) Institute, Nara Medical University, Nara, Japan
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Daicho H, Shinomiya Y, Enomoto K, Nakano A, Sawa H, Matsuishi S, Hosono H. A novel red-emitting K 2Ca(PO 4)F:Eu 2+ phosphor with a large Stokes shift. Chem Commun (Camb) 2018; 54:884-887. [PMID: 29210374 DOI: 10.1039/c7cc08202a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a K2CaPO4F:Eu2+ phosphor with a new crystal structure. This phosphor has a large Stokes shift and converts near-ultraviolet light to red luminescence without absorption of other visible light. The mechanism was elucidated by applying a constrained density functional theory to the solved crystal structure.
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Affiliation(s)
- H Daicho
- Research & Development Department, Koito Manufacturing Co., 500, Kitawaki, Shimizu-ku, Shizuoka 424-8764, Japan.
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Seguchi O, Nakano A, Nakajima S, Sunami H, Sato T, Yanase M, Hata H, Fujita T, Kobayashi J, Kitakaze M, Fukushima N, Nakatani T. Low Partial Pressure of End-Tidal Carbon Dioxide Predicts the Future Ventricular Assist Device Implantation in Patients with Chronic Advanced Heart Failure. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Hamuro A, Tachibana D, Wang H, Hayashi M, Yanai S, Kurihara Y, Misugi T, Katayama H, Nakano A, Koyama M. Combined reconstructive surgery involving uterosacral colpopexy and anterior vaginal mesh implantation for pelvic organ prolapse. J Obstet Gynaecol Res 2016; 42:707-15. [DOI: 10.1111/jog.12952] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 11/14/2015] [Accepted: 12/22/2015] [Indexed: 12/21/2022]
Affiliation(s)
- A. Hamuro
- Division of Women's Life Care Medicine, Department of Obstetrics and Gynecology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - D. Tachibana
- Division of Women's Life Care Medicine, Department of Obstetrics and Gynecology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - H. Wang
- Division of Women's Life Care Medicine, Department of Obstetrics and Gynecology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - M. Hayashi
- Division of Women's Life Care Medicine, Department of Obstetrics and Gynecology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - S. Yanai
- Division of Women's Life Care Medicine, Department of Obstetrics and Gynecology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - Y. Kurihara
- Division of Women's Life Care Medicine, Department of Obstetrics and Gynecology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - T. Misugi
- Division of Women's Life Care Medicine, Department of Obstetrics and Gynecology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - H. Katayama
- Division of Women's Life Care Medicine, Department of Obstetrics and Gynecology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - A. Nakano
- Division of Women's Life Care Medicine, Department of Obstetrics and Gynecology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - M. Koyama
- Division of Women's Life Care Medicine, Department of Obstetrics and Gynecology; Osaka City University Graduate School of Medicine; Osaka Japan
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9
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Hashimoto K, Mori S, Oda Y, Nakano A, Sawamura T, Akagi M. Lectin-like oxidized low density lipoprotein receptor 1-deficient mice show resistance to instability-induced osteoarthritis. Scand J Rheumatol 2016; 45:412-22. [DOI: 10.3109/03009742.2015.1135979] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- K Hashimoto
- Department of Orthopaedic Surgery, Kindai University Faculty of Medicine, Osaka, Japan
| | - S Mori
- Department of Orthopaedic Surgery, Kindai University Faculty of Medicine, Osaka, Japan
| | - Y Oda
- Department of Orthopaedic Surgery, Kindai University Faculty of Medicine, Osaka, Japan
| | - A Nakano
- Department of Bioscience, National Cardiovascular Centre Research Institute, Osaka, Japan
| | - T Sawamura
- Department of Physiology, Shinshu University School of Medicine, Nagano, Japan
| | - M Akagi
- Department of Orthopaedic Surgery, Kindai University Faculty of Medicine, Osaka, Japan
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10
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Wada N, Tachibana D, Kurihara Y, Nakagawa K, Nakano A, Terada H, Tanaka K, Fukui M, Koyama M, Hecher K. Alterations in time intervals of ductus venosus and atrioventricular flow velocity waveforms in growth-restricted fetuses. Ultrasound Obstet Gynecol 2015; 46:221-226. [PMID: 25366537 DOI: 10.1002/uog.14717] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 10/14/2014] [Accepted: 10/22/2014] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate time intervals of the ductus venosus (DV) flow velocity waveform (FVW) and those of the cardiac cycle that correspond with each DV-FVW component in fetuses with intrauterine growth restriction (IUGR) due to placental insufficiency. METHODS Women with a pregnancy complicated by IUGR were recruited into the study, as was a normal control group. Time intervals for systolic (S) and diastolic (D) components were measured in DV-FVW as follows: S(DV), from the nadir of the a-wave during atrial contraction to the nadir between the S-wave and D-wave; D(DV), from the nadir between S-wave and D-wave to the nadir of the a-wave. Regarding cardiac cycles, the following variables were measured from ventricular inflow through the tricuspid valve (TV) and mitral valve (MV): S(TV) and S(MV), from the second peak of ventricular inflow caused by atrial contraction (A-wave) to the opening of the atrioventricular valve; D(TV) and D(MV), from the opening of the atrioventricular valve to the peak of the A-wave. In the IUGR group, only the last examination performed within 1 week of delivery was used for analysis. All variables were analyzed statistically using Z-scores. RESULTS Data were obtained from 249 normal fetuses and 26 fetuses with IUGR. Compared to normal fetuses, S(DV) showed a significant decrease (P < 0.001), while D(DV) showed a significant increase (P < 0.001) in the IUGR group. Regarding cardiac cycles, S(TV) and S(MV) showed significant decreases (P = 0.014 and P < 0.001, respectively) and D(TV) and D(MV) showed significant increases (P = 0.008 and P = 0.002, respectively) in fetuses with IUGR. CONCLUSION Time-interval alterations of DV-FVW in growth-restricted fetuses reflect the hemodynamic events caused by placental insufficiency.
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Affiliation(s)
- N Wada
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - D Tachibana
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Y Kurihara
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Nakagawa
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - A Nakano
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - H Terada
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Tanaka
- Department of Obstetrics and Gynecology, Osaka City General Hospital, Osaka, Japan
| | - M Fukui
- Laboratory of Statistics, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Koyama
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Hecher
- Department of Obstetrics and Fetal Medicine, University Medical Center, Hamburg-Eppendorf, Hamburg, Germany
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11
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Seguchi O, Nakano A, Kuroda K, Hisamatsu E, Sato T, Nakajima S, Sato T, Sunami H, Yanase M, Kitakaze M, Nakatani T. Partial Pressure of End-Tidal Carbon Dioxide Predicts the Complication of Secondary Pulmonary Hypertension in Patients With Advanced Heart Failure. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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12
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Nakano A, Mishima K, Nakano H, Katase N, Mano T, Ueyama Y. A Case of Squamous Cell Carcinoma Arising from Branchial Cleft Cyst. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.295] [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]
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13
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Kakino A, Yamamoto K, Nakano A, Li L, Fujita Y, Rakugi H, Sawamura T. AT1 directly interacting with LOX-1 mediates signal transduction induced by oxidized LDL. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.107] [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: 12/01/2022]
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14
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Tanosaki R, Kumazawa T, Yoshida A, Oguni S, Nakano A, Yamagata S, Takahashi N, Kurosawa S, Kim SW, Yamashita T, Mori S, Heike Y, Fukuda T, Hamaguchi Y, Tsuda H. Novel and rapid enumeration method of peripheral blood stem cells using automated hematology analyzer. Int J Lab Hematol 2013; 36:521-30. [DOI: 10.1111/ijlh.12182] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 09/17/2013] [Indexed: 11/28/2022]
Affiliation(s)
- R. Tanosaki
- Department of Blood Transfusion and Cellular Therapy; National Cancer Center Hospital; Tokyo Japan
| | - T. Kumazawa
- Department of Blood Transfusion and Cellular Therapy; National Cancer Center Hospital; Tokyo Japan
| | | | | | - A. Nakano
- Department of Pathology and Clinical Laboratories; National Cancer Center Hospital; Tokyo Japan
| | - S. Yamagata
- Department of Hematology and Hematopoietic Stem Cell Transplantation; National Cancer Center Hospital; Tokyo Japan
| | - N. Takahashi
- Department of Hematology and Hematopoietic Stem Cell Transplantation; National Cancer Center Hospital; Tokyo Japan
| | - S. Kurosawa
- Department of Hematology and Hematopoietic Stem Cell Transplantation; National Cancer Center Hospital; Tokyo Japan
| | - S. W. Kim
- Department of Hematology and Hematopoietic Stem Cell Transplantation; National Cancer Center Hospital; Tokyo Japan
| | - T. Yamashita
- Department of Hematology and Hematopoietic Stem Cell Transplantation; National Cancer Center Hospital; Tokyo Japan
| | - S. Mori
- Department of Hematology and Hematopoietic Stem Cell Transplantation; National Cancer Center Hospital; Tokyo Japan
| | - Y. Heike
- Department of Hematology and Hematopoietic Stem Cell Transplantation; National Cancer Center Hospital; Tokyo Japan
| | - T. Fukuda
- Department of Hematology and Hematopoietic Stem Cell Transplantation; National Cancer Center Hospital; Tokyo Japan
| | | | - H. Tsuda
- Department of Pathology and Clinical Laboratories; National Cancer Center Hospital; Tokyo Japan
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15
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Seguchi O, Nakano A, Hieda M, Watanabe T, Sato T, Sunami H, Murata Y, Yanase M, Kitakaze M, Nakatani T. Noninvasive and mainstream end-tidal carbon dioxide monitoring via nasal cannula is a unique and useful technique for diagnosing pulmonary hypertension in patients with heart failure. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p623] [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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16
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Matsunaga T, Mutai H, Kunishima S, Namba K, Morimoto N, Shinjo Y, Arimoto Y, Kataoka Y, Shintani T, Morita N, Sugiuchi T, Masuda S, Nakano A, Taiji H, Kaga K. A prevalent founder mutation and genotype-phenotype correlations ofOTOFin Japanese patients with auditory neuropathy. Clin Genet 2012; 82:425-32. [DOI: 10.1111/j.1399-0004.2012.01897.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Akasaka E, Nakano H, Nakano A, Toyomaki Y, Takiyoshi N, Rokunohe D, Nishikawa Y, Korekawa A, Matsuzaki Y, Mitsuhashi Y, Sawamura D. Diffuse and focal palmoplantar keratoderma can be caused by a keratin 6c mutation. Br J Dermatol 2011; 165:1290-2. [DOI: 10.1111/j.1365-2133.2011.10552.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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18
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Oiso N, Nakano A, Yano Y, Kawada A. The diagnostic usefulness of dermoscopy for identifying six-legged larval ticks. Ticks Tick Borne Dis 2011; 1:197-8. [PMID: 21771529 DOI: 10.1016/j.ttbdis.2010.09.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [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: 08/28/2010] [Revised: 09/23/2010] [Accepted: 09/27/2010] [Indexed: 11/19/2022]
Abstract
Ticks are vectors of a variety of diseases such as Lyme disease and Japanese spotted fever. We examined an 87-year-old female with multiple tick bites by at least 236 larval Amblyomma testudinarium infestations. Numerous tick bites are generally caused by the six-legged larvae, which were verified in this case by dermoscopy. The present case indicates the diagnostic usefulness of dermoscopy for six-legged larval tick bites.
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Affiliation(s)
- N Oiso
- Dept. of Dermatology, Kinki University Faculty of Medicine, 377-2 Ohno-Higashi, Osaka-Sayama, Osaka 589-8511, Japan.
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Takashima A, Shimada Y, Hamaguchi T, Ito Y, Nakano A, Nakamura K, Shibata T, Fukuda H, Moriya Y. A Phase I/II Trial of Chemoradiotherapy Concurrent with S-1 plus Mitomycin C in Patients with Clinical Stage II/III Squamous Cell Carcinoma of Anal Canal (JCOG0903: SMART-AC). Jpn J Clin Oncol 2011; 41:713-7. [DOI: 10.1093/jjco/hyr028] [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: 01/09/2023] Open
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20
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Nakano A, Watanabe D, Akita Y, Kawamura T, Tamada Y, Matsumoto Y. Treatment efficiency of combining photodynamic therapy and ionizing radiation for Bowen’s disease. J Eur Acad Dermatol Venereol 2011; 25:475-8. [DOI: 10.1111/j.1468-3083.2010.03757.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Shimojo F, Ohmura S, Nakano A, Kalia RK, Vashishta P. Large-scale atomistic simulations of nanostructured materials based on divide-and-conquer density functional theory. EPJ Web of Conferences 2011. [DOI: 10.1051/epjconf/20111503005] [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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22
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Vedadi M, Choubey A, Nomura K, Kalia RK, Nakano A, Vashishta P, van Duin ACT. Structure and dynamics of shock-induced nanobubble collapse in water. Phys Rev Lett 2010; 105:014503. [PMID: 20867452 DOI: 10.1103/physrevlett.105.014503] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2009] [Revised: 04/01/2010] [Indexed: 05/20/2023]
Abstract
Shock-induced collapse of nanobubbles in water is investigated with molecular dynamics simulations based on a reactive force field. We observe a focused jet at the onset of bubble shrinkage and a secondary shock wave upon bubble collapse. The jet length scales linearly with the nanobubble radius, as observed in experiments on micron-to-millimeter size bubbles. Shock induces dramatic structural changes, including an ice-VII-like structural motif at a particle velocity of 1 km/s. The incipient ice VII formation and the calculated Hugoniot curve are in good agreement with experimental results.
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Affiliation(s)
- M Vedadi
- Collaboratory for Advanced Computing and Simulations, University of Southern California, Los Angeles, California 90089-0242, USA
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23
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Kunisaki C, Takahashi M, Nagahori Y, Fukushima T, Makino H, Takagawa R, Kosaka T, Ono HA, Akiyama H, Moriwaki Y, Nakano A. Risk factors for lymph node metastasis in histologically poorly differentiated type early gastric cancer. Endoscopy 2009; 41:498-503. [PMID: 19533552 DOI: 10.1055/s-0029-1214758] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND We retrospectively evaluated the predictive factors for lymph node metastasis in poorly differentiated early gastric cancer (poorly differentiated tubular adenocarcinoma, signet-ring cell carcinoma, mucinous adenocarcinoma) in order to examine the possibility of endoscopic resection for poorly differentiated early gastric cancer. METHODS A total of 573 patients with histologically poorly differentiated type early gastric cancer (269 mucosal and 304 submucosal), who had undergone curative gastrectomy, were enrolled in this study. Risk factors for lymph node metastasis were evaluated by univariate and logistic regression analysis. RESULTS Lymph node metastasis was observed in 74 patients (12.9%) (6 with mucosal cancer and 68 with submucosal cancer). By univariate analysis risk factors for lymph node metastasis were lymphovascular invasion (LVI) (presence), depth of invasion (submucosa), and tumor diameter (> 20 mm), ulcer or ulcer scar (presence), and histological type (mucinous adenocarcinoma). By multivariate analysis, risk factors for lymph node metastasis were LVI, depth of invasion, and tumor diameter. In mucosal cancers, the incidence of lymph node metastasis was 0% irrespective of LVI in tumors smaller than 20 mm, and 1.7% in tumors 20 mm or larger without LVI. In submucosal cancers, the incidence of lymph node metastasis was 2.4% in tumors smaller than 20 mm without LVI. CONCLUSIONS A histologically poorly differentiated type mucosal gastric cancer measuring less than 20 mm and without LVI may be a candidate for endoscopic resection. This result should be confirmed in a larger study with many patients.
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Affiliation(s)
- C Kunisaki
- Department of Surgery, Gastroenterological Center, Yokohama City University, Yokohama, Japan.
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24
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Nakano A, Nakano H, Chien KR. Multipotent islet-1 cardiovascular progenitors in development and disease. Cold Spring Harb Symp Quant Biol 2009; 73:297-306. [PMID: 19204066 DOI: 10.1101/sqb.2008.73.055] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
During the past several years, advances at the intersection of cardiovascular development and heart stem cell biology have begun to reshape our view of the fundamental logic that drives the formation of discrete tissue components in the mammalian heart. Although many of the critical genes that control cardiac myogenesis have been identified, our understanding of how a highly diverse and specialized subset of heart cell lineages arises from mesodermal precursors and is subsequently assembled into distinct muscle chambers, coronary arterial tree and large vessels, valvular tissue, and conduction system/pacemaker cells remains at a relatively primitive stage. Recent studies have uncovered a diverse group of closely related heart progenitors that are central in controlling and coordinating these complex steps of cardiogenesis. Understanding the pathways that control their formation, renewal, and subsequent conversion to specific differentiated progeny forms the underpinning for unraveling the pathways for congenital heart disease and has direct relevance to cardiovascular regenerative medicine. This current brief review highlights the discovery and delineation of the role of Islet-1 cardiovascular progenitors in the generation of diverse heart cell lineages and how the implications of these findings are revising our classification and thinking about congenital heart disease in general.
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Affiliation(s)
- A Nakano
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, Massachusetts 02114-2790, USA
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25
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Nakano A, Tamada Y, Watanabe D, Ishida N, Yamashita N, Kuhara T, Yanagishita T, Kawamura C, Akita Y, Matsumoto Y. A pilot study to assess the efficacy of photodynamic therapy for Japanese patients with actinic keratosis in relation to lesion size and histological severity. Photodermatology, Photoimmunology & Photomedicine 2009; 25:37-40. [DOI: 10.1111/j.1600-0781.2009.00401.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Ishida N, Watanabe D, Akita Y, Nakano A, Yamashita N, Kuhara T, Yanagishita T, Takeo T, Tamada Y, Matsumoto Y. Etretinate enhances the susceptibility of human skin squamous cell carcinoma cells to 5-aminolaevulic acid-based photodynamic therapy. Clin Exp Dermatol 2008; 34:385-9. [PMID: 19077103 DOI: 10.1111/j.1365-2230.2008.03003.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Photodynamic therapy (PDT) with 5-aminolaevulinic acid (5-ALA) is a noninvasive and effective treatment for superficial skin cancers. Etretinate, a derivate of vitamin A, with the chemical formula ethyl(2E,4E,6E,8E)-9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethyl-2,4,6,8-nona-tetraenoate, has been reported to have antitumour effects and to regulate the proliferation and differentiation of skin cancers. OBJECTIVE In order to develop more efficient PDT, we investigated whether etretinate enhanced the cytotoxic action of ALA-based PDT against human squamous cell carcinoma cell line, HSC-5. METHOD The in vitro cytotoxicity was measured using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Apoptotic cells were detected by double-staining with fluorescent annexin V and propidium iodide. Intracellular protoporphyrin IX (PpIX) converted from exogenous ALA was measured by a fluorescence meter. RESULTS HSC-5 cells pretreated with a nontoxic concentration of etretinate became more susceptible to the cytotoxic action of ALA-based PDT. Etretinate-pretreated cells underwent apoptosis in response to ALA-based PDT. Etretinate pretreatment resulted in enhanced accumulation of ALA-dependent intracellular PpIX. CONCLUSIONS The results suggest that etretinate enhances the susceptibility of HSC-5 cells to ALA-based PDT via the intracellular increase of ALA-dependent PpIX. Etretinate might be useful for improvement of ALA-based PDT.
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Affiliation(s)
- N Ishida
- Department of Dermatology, Aichi Medical University School of Medicine, Nagakute, Aich, Japan.
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Ihara K, Uejima T, Goh T, Ito E, Sunada M, Ueda T, Nakano A, Wakatsuki S. Vps9 assisted guanine nucleotide exchange intermediates of Rab5. Acta Crystallogr A 2008. [DOI: 10.1107/s010876730808937x] [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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28
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Nakano A, Li LY, Ohtsubo M, Mishra AK, Higashi T. Lead retention mechanisms and hydraulic conductivity studies of various bentonites for geoenvironment applications. Environ Technol 2008; 29:505-514. [PMID: 18661734 DOI: 10.1080/09593330801984258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Four bentonites from various sources were exposed to batch adsorption testing, selective sequential extraction and consolidation tests to investigate their metal retention capacity and hydraulic conductivity for geoenvironmental application such as in clay barrier materials. The Japanese bentonites (JB1-JB3) contain approximately 2-4% of carbonate and trace amount of zeolite (JB2 and JB3), whereas the US bentonite has < 1% carbonate and no zeolite. The rank of smectite content in the bentonites are USB > JB1 > JB3 > JB2. The materials ranked as JB2 approximately JB3 > JB1 > USB, according to retention capacity, while after the removal of carbonate the retention capacity order was JB1 approximately JB2 approximately JB3 > USB. SSE results indicate that carbonate plays a major role at low Pb solution concentration and precipitate as PbCO3. Once the carbonate is exhausted, the clay composition dominates the sorption process. The hydraulic conductivity of the bentonite mixtures (basalt + 10% bentonite) using water was kUSB < kJB1 < kJB3 < kJB2, consistent with the smectite content and swelling power, with USB having the highest proportion of smectite. Among the Japanese bentonites studied, JB1 is the best candidate for barrier material, comparable to the widely used USB.
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Affiliation(s)
- A Nakano
- Department of Bioproduction Environmental Science, Kyushu University, Hakozaki, Fukuoka, 812-85, Japan
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Nakano H, Toyomaki Y, Ohashi S, Nakano A, Jin H, Munakata T, Akita N, Tamai K, Mitsuhashi Y. Novel COL7A1 mutations in a Japanese family with transient bullous dermolysis of the newborn associated with pseudosyndactyly. Br J Dermatol 2007; 157:179-82. [PMID: 17501948 DOI: 10.1111/j.1365-2133.2007.07955.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- H Nakano
- Department of Dermatology, Hirosaki University School of Medicine, Hirosaki, Japan.
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Nishizawa A, Toyomaki Y, Nakano A, Takeuchi S, Matsuzaki Y, Takeda H, Kaneko T, Mitsuhashi Y, Nakano H. A novel H1 domain mutation in the keratin 2 gene in a Japanese family with ichthyosis bullosa of Siemens. Br J Dermatol 2007; 156:1042-4. [PMID: 17408392 DOI: 10.1111/j.1365-2133.2007.07832.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- A Nishizawa
- Department of Dermatology, Hirosaki University School of Medicine, Hirosaki, Japan
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Suzuki T, Ishii Y, Nakano A. Elementary particle size distribution and PVC plastisol viscosity. J MACROMOL SCI B 2006. [DOI: 10.1080/00222348108205074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- T. Suzuki
- a Nippon Zeon Co., Ltd , Takaoka Plant 630 Ogino, Takaoka-City, Toyama-Ken, Japan
| | - Y. Ishii
- a Nippon Zeon Co., Ltd , Takaoka Plant 630 Ogino, Takaoka-City, Toyama-Ken, Japan
| | - A. Nakano
- a Nippon Zeon Co., Ltd , Takaoka Plant 630 Ogino, Takaoka-City, Toyama-Ken, Japan
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Abe M, Kido S, Hiasa M, Nakano A, Oda A, Amou H, Matsumoto T. BAFF and APRIL as osteoclast-derived survival factors for myeloma cells: a rationale for TACI-Fc treatment in patients with multiple myeloma. Leukemia 2006; 20:1313-5. [PMID: 16617317 DOI: 10.1038/sj.leu.2404228] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Nakano A, Kato K, Tsuchiya K, Nakazawa K, Yabuhara T, Uzuka T, Takahashi H. Experimental heating properties of re-entrant type resonant cavity applicator for deep tumor hyperthermia. Conf Proc IEEE Eng Med Biol Soc 2006; 2006:4058-4061. [PMID: 17945821 DOI: 10.1109/iembs.2006.260764] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
This paper discusses the heating properties of a new type hyperthermia system composed of a re-entrant type resonant cavity applicator for a deep tumor of the abdominal region. In this heating method, a human body is placed between the two inner electrodes, and is heated with electromagnetic fields stimulated in the cavity without contact between the surface of the human body and the applicator. First, the experimental heating results of an agar-muscle equivalent phantom were presented. Second, we performed an experiment with a lard-agar phantom. The center region of the agar phantom could be heated selectively without generating hot spots in the lard layers. From these results, it was found that our newly developed heating method is useful for a deep-seated tumor hyperthermia treatment.
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Affiliation(s)
- A Nakano
- Dept. of Mech. Eng. Informatics, Meiji Univ., Kawasaki
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Satoh T, Sato K, Kanoh A, Yamashita K, Kato R, Nakano A, Wakatsuki S. Crystal structures of the carbohydrate recognition domain of Emp46p and Emp47p. Acta Crystallogr A 2005. [DOI: 10.1107/s0108767305092445] [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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Abstract
The yeast Saccharomyces cerevisiae is one of the best-studied organisms to understand molecular mechanisms of membrane traffic, but as far as the organization of the Golgi apparatus is concerned, yeast is only just beginning to yield clues about how dynamic and flexible the organelle is.
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Affiliation(s)
- A Nakano
- Molecular Membrane Biology Lab., RIKEN Discovery Research Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
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Nishioka T, Maeda Y, Tomogane Y, Nakano A, Arita N. Unexpected delayed rupture of the vertebral-posterior inferior cerebellar artery aneurysms following closed head injury. Acta Neurochir (Wien) 2002; 144:839-45; discussion 845. [PMID: 12181696 DOI: 10.1007/s00701-002-0952-3] [Citation(s) in RCA: 23] [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: 10/27/2022]
Abstract
Subarachnoid haemorrhage secondary to closed head injury is rarely associated with traumatic aneurysms of the posterior circulation. We report two cases of ruptured vertebral-posterior inferior cerebellar artery (VA-PICA) pseudoaneurysms following closed head injuries. In each case, there was no associated penetrating injury or skull fracture. The first patient was kicked followed by disturbed consciousness. The computerized tomography (CT) scan on admission and cerebral angiography on the 11th day after the trauma revealed a massive subarachnoid haemorrhage (SAH) with pan-ventricular haemorrhage and an aneurysm of the right PICA near its origin. Further ruptures occurred on the 12th, 15th, and 66th day, and he died on the 69th day. The second patient complained of persistent headache and nausea following a fight on the previous day. A CT scan and angiography on the 1st day after the trauma showed posterior fossa SAH with fourth ventricular blood and a tiny protrusion of the left VA-PICA. On the 14th day, repeated angiography revealed a remarkable growth of the aneurysm, followed by the second rupture. The repair of the VA-PICA junction was urgently performed with successful exclusion of the aneurysm. To our knowledge, only eight cases of traumatic aneurysms located at the VA or the PICA near its origin have been reported. When intraventricular blood is found with massive subarachnoid blood or with posterior fossa SAH, this ominous complication should be considered. Traumatic VA-PICA pseudoaneurysms are curable by refined microsurgical techniques, if diagnosed in time.
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Affiliation(s)
- T Nishioka
- Department of Neurosurgery, Ishikiriseiki Hospital, Higashiosaka, Japan
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Adachi O, Nakano A, Sato O, Kawamoto S, Tahara H, Toyoda N, Yamato E, Matsumori A, Tabayashi K, Miyazaki J. Gene transfer of Fc-fusion cytokine by in vivo electroporation: application to gene therapy for viral myocarditis. Gene Ther 2002; 9:577-83. [PMID: 11973633 DOI: 10.1038/sj.gt.3301691] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2001] [Accepted: 02/04/2002] [Indexed: 11/09/2022]
Abstract
Among a number of techniques for gene transfer in vivo, the direct injection of plasmid DNA into muscle is simple, inexpensive and safe. Although combining direct DNA injection with in vivo electroporation increases the efficiency of gene transfer into muscle, applications of this method have remained limited because of the relatively low expression level. To overcome this problem, we developed a plasmid vector that expresses a secretory protein as a fusion protein with the noncytolytic immunoglobulin Fc portion and used it for electroporation-mediated viral interleukin 10 (vIL-10) expression in vivo. The fusion cytokine vIL-10/mutFc was successfully expressed and the peak serum concentration of vIL-10 was almost 100-fold (195 ng/ml) higher than with a non-fusion vIL-10 expression plasmid. The expressed fusion cytokine suppressed the phytohemagglutinin-induced IFN-gamma production by human peripheral blood mononuclear cells and decreased the mortality in a mouse viral myocarditis model as effectively as vIL-10 expression. These results demonstrate that the transfer of plasmid DNA expressing a noncytolytic Fc-fusion cytokine is useful to deliver enhanced levels of cytokine without altering general biological activities. This simple and efficient system should provide a new approach to gene therapy for human diseases and prove very useful for investigating the function of newly discovered secretory protein genes.
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Affiliation(s)
- O Adachi
- Division of Stem Cell Regulation Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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41
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Suguta M, Nakano A, Hoshino Y, Tomita T, Hasegawa A, Kurabayashi M. Intracoronary separation of a nosecone: an unusual complication of directional atherectomy. Catheter Cardiovasc Interv 2001; 54:526-30. [PMID: 11747195 DOI: 10.1002/ccd.1326] [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: 11/06/2022]
Abstract
A rare case of coronary separation of nosecone fixed to a 6 Fr GTO cutter catheter after failed directional coronary atherectomy (DCA) is reported. Revascularization was successful using a stent via the subintimal neolumen beside the nosecone. Heavily calcified lesions are relative contraindications to DCA.
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Affiliation(s)
- M Suguta
- The Second Department of Internal Medicine, Gunma University School of Medicine, Gunma, Japan.
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Umebayashi K, Fukuda R, Hirata A, Horiuchi H, Nakano A, Ohta A, Takagi M. Activation of the Ras-cAMP signal transduction pathway inhibits the proteasome-independent degradation of misfolded protein aggregates in the endoplasmic reticulum lumen. J Biol Chem 2001; 276:41444-54. [PMID: 11526112 DOI: 10.1074/jbc.m105829200] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [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: 11/06/2022] Open
Abstract
Many kinds of misfolded secretory proteins are known to be degraded in the endoplasmic reticulum (ER). Dislocation of misfolded proteins from the ER to the cytosol and subsequent degradation by the proteasome have been demonstrated. Using the yeast Saccharomyces cerevisiae, we have been studying the secretion of a heterologous protein, Rhizopus niveus aspartic proteinase-I (RNAP-I). Previously, we found that the pro sequence of RNAP-I is important for the folding and secretion, and that Deltapro, a mutated derivative of RNAP-I in which the entire region of the pro sequence is deleted, forms gross aggregates in the yeast ER. In this study, we show that the degradation of Deltapro occurs independently of the proteasome. Its degradation was not inhibited either by a potent proteasome inhibitor or in a proteasome mutant. We also show that neither the export from the ER nor the vacuolar proteinase is required for the degradation of Deltapro. These results raise the possibility that the Deltapro aggregates are degraded in the ER lumen. We have isolated a yeast mutant in which the degradation of Deltapro is delayed. We show that the mutated gene is IRA2, which encodes a GTPase-activating protein for Ras. Because Ira2 protein is a negative regulator of the Ras-cAMP pathway, this result suggests that hyperactivation of the Ras-cAMP pathway inhibits the degradation of Deltapro. Consistently, down-regulation of the Ras-cAMP pathway in the ira2 mutant suppressed the defect of the degradation of Deltapro. Thus, the Ras-cAMP signal transduction pathway seems to control the proteasome-independent degradation of the ER misfolded protein aggregates.
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Affiliation(s)
- K Umebayashi
- Department of Biotechnology, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
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Endo I, Tanabe M, Tanaka K, Ishikawa T, Sekido H, Togo S, Nakano A, Shimada H. Successful left trisegmentectomy for polycystic liver disease accompanied by jaundice. Dig Surg 2001; 18:320-2. [PMID: 11528144 DOI: 10.1159/000050160] [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: 12/10/2022]
Abstract
BACKGROUND We report a case of severe polycystic liver disease (PLD) with jaundice in a 57-year-old woman who underwent successful left trisegmentectomy. METHOD She was admitted for the first time in February 1992 to our hospital with a 7-year history of PLD, and became jaundiced in June 1995. Because normal liver parenchyma was confirmed mainly to the posterior segment, left trisegmentectomy was performed. RESULTS No postoperative complication occurred. The serum bilirubin level decreased promptly after the operation, but postoperative endoscopic retrograde cholangiography showed that the root of the posterior hepatic duct remained thin. Thus, the elimination of jaundice was presumed to have been caused by a decrease of intra-abdominal and peripheral biliary pressure, since a large volume of tissue had been removed from the peritoneal cavity. She has since remained well without any symptoms. CONCLUSION This procedure is useful for severe PLD, because it can be performed safely and the symptoms disappear dramatically. However, further follow-up is needed to determine the long-term effects of this procedure, because the remaining liver has shown some increase in size.
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Affiliation(s)
- I Endo
- Second Department of Surgery, Yokohama City University School of Medicine, Yokohama, Japan.
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Nakano A, Aratani N, Furuta H, Osuka A. Directly linked dehydropurpurin-porphyrin dyads from Ag(I)-promoted oxidation of meso-phenylethynyl substituted zinc(II) porphyrins. Chem Commun (Camb) 2001:1920-1. [PMID: 12240219 DOI: 10.1039/b106050n] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ag(I)-promoted oxidation of (5,15-diaryl-10-phenylethynyl-porphyrinato)zinc(II) complexes in CHCl3 gave directly linked 12,13-dehydropurpurin-porphyrin dyads, the structures of which were revealed by X-ray analysis.
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Affiliation(s)
- A Nakano
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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Tsuchida T, Sadato N, Yonekura Y, Sugimoto K, Nakano A, Lee JD, Takahashi N, Waki A, Ishii Y, Itoh H. Myocardial FDG-PET examination during fasting and glucose loading states by means of a one-day protocol. Ann Nucl Med 2001; 15:433-8. [PMID: 11758948 DOI: 10.1007/bf02988347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 11/25/2022]
Abstract
We propose a new method to measure the myocardial FDG uptake during fasting and glucose loading in one day, a myocardial FDG-PET one-day protocol, with both 2- and 3-dimensional data acquisition (2D and 3D) without background activity subtraction. To confirm it, we evaluated the effect of scatter correction in the 2D and 3D modes of a PET scanner both in phantom and patient studies. In the phantom study, we used a cardiac phantom with six divided chambers and two cylindrical phantoms placed as the activity outside the field of view. Each chamber was filled with a different concentration of F- 18 solution. Regions of interest (ROI) were placed on a polar map generated from reconstructed images and were compared to the concentration of the solution in each chamber in both 2D and 3D. In the patient study, 10 non-diabetic patients with coronary artery disease were studied. Each patient received a myocardial FDG study during fasting (F) and glucose loading (L). L images with background subtraction (Lsub(+)) and without background subtraction (Lsub(-)) were compared by polar map analysis. The ROI counts for the true activity in 2D and 3D demonstrated a linear relationship, and quite similar slopes were observed (0.72 in 2D, 0.69 in 3D). The background fraction in Lsub(-) was 3.59+/-1.83%. There were significant differences between Lsub(-) or Lsub(+) and F in both normal and ischemic myocardium. Scatter correction was successfully performed in both 2D and 3D modes. Background activity is thought to be negligible and this proposed method is simple touse in measuring the myocardial FDG uptake in one day.
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Affiliation(s)
- T Tsuchida
- Department of Radiology, Fukui Medical University, Matsuoka, Japan.
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Sakamoto M, Nakano A, Akagi H. Declining Minamata male birth ratio associated with increased male fetal death due to heavy methylmercury pollution. Environ Res 2001; 87:92-8. [PMID: 11683592 DOI: 10.1006/enrs.2001.4293] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The purpose of this retrospective study was to examine the effect of methylmercury pollution on the sex ratio of offspring at birth and of fetuses at stillbirth in Minamata City, Japan, in the 1950s when severe and widespread methylmercury pollution was experienced. In 4 of 5 years from 1955 to 1959 when methylmercury pollution was most severe, lower numbers of male offspring at birth were observed in the city population. The offspring sex distributions from 1950 to 1969 by 5-year period were calculated in the overall population of Minamata City, in the most prevalent area, in fishermen (most heavily exposed occupation group) and among Minamata disease patients using data from birth certificates. We also similarly calculated the sex ratio of stillborn fetuses in the city population using Kumamoto Prefecture's vital statistics on still-birth. Decreases in male births were observed in offspring in the overall city population, in fishermen, and in maternal Minamata disease patients in the city in 1955-1959, when the methylmercury pollution was most severe. An increase in the proportion of male stillborn fetuses in the city was observed at the time. It is possible that male fetuses were more susceptible to the pollution than their female counterparts, and this could be a cause for the lower numbers of male offspring at birth.
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Affiliation(s)
- M Sakamoto
- Department of Epidemiology, National Institute for Minamata Disease, Minamata City, Kumamoto, Japan.
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Liu XJ, Arisawa K, Nakano A, Saito H, Takahashi T, Kosaka A. Significance of cadmium concentrations in blood and hair as an indicator of dose 15 years after the reduction of environmental exposure to cadmium. Toxicol Lett 2001; 123:135-41. [PMID: 11641041 DOI: 10.1016/s0378-4274(01)00381-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [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: 11/17/2022]
Abstract
To evaluate the significance of cadmium (Cd) concentrations in blood (B-Cd) and hair (H-Cd) as an indicator of dose, a cross-sectional study was performed on 40 residents in a Cd-polluted area, Nagasaki Prefecture, Japan, in 1996. In the study area, soil replacement of Cd-polluted rice fields ended in 1981. B-Cd and H-Cd were significantly higher in the study population than in the control subjects. B-Cd was positively correlated with urinary Cd (U-Cd) (Spearman r=0.50, P=0.06 for males and r=0.72, P=0.0001 for females), while H-Cd was weakly or moderately correlated with U-Cd. After adjustment for gender using logistic regression analysis, log(B-Cd) and log(U-Cd), but not log(H-Cd), were significantly associated with the prevalence of increased urinary beta2-microglobulin (P for trend <0.05). These findings suggest that B-Cd is a good indicator of cumulative dose many years after the reduction of environmental exposure to Cd. H-Cd may be weakly or moderately correlated with body burden.
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Affiliation(s)
- X J Liu
- Department of Preventive Medicine and Health Promotion, Nagasaki University School of Medicine, 1-12-4 Sakamoto, 852-8523, Nagasaki, Japan
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Pulkkinen L, Nakano A, Ringpfeil F, Uitto J. Identification of ABCC6 pseudogenes on human chromosome 16p: implications for mutation detection in pseudoxanthoma elasticum. Hum Genet 2001; 109:356-65. [PMID: 11702217 DOI: 10.1007/s004390100582] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2001] [Accepted: 07/11/2001] [Indexed: 12/11/2022]
Abstract
Pseudoxanthoma elasticum (PXE), a heritable disorder affecting the skin, eyes, and the cardiovascular system, has recently been linked to mutations in the ABCC6 gene on chromosome 16p13.1. The original mutation detection strategy employed by us consisted of the amplification of each exon of the ABCC6 gene with primer pairs placed on the flanking introns, followed by heteroduplex scanning and direct nucleotide sequencing. However, this approach suggested the presence of multiple copies of the 5'-region of the gene when total genomic DNA was used as a template. In this study, we have identified two pseudogenes containing sequences highly homologous to the 5'-end of ABCC6. First, by the use of allele-specific polymerase chain reaction (PCR), two bacterial artificial chromosome (BAC) clones containing a putative pseudogene of ABCC6, designated as ABCC6-psi 1, were isolated from the human BAC library. Sequence analysis of ABCC6-psi 1 revealed it to be a truncated copy of ABCC6, which contains the upstream region and exon 1 through intron 9 of the gene. Secondly, a homology search of a high-throughput sequence database revealed the presence of another truncated copy of ABCC6, which was designated as ABCC6-psi 2, and which was shown to harbor upstream sequences and a segment spanning exon 1 through intron 4 of ABCC6. In addition to several nucleotide differences in the flanking introns and the upstream region, both pseudogenes contain several nucleotide changes in the exonic sequences, including stop codon mutations, which complicate mutation analysis in patients with PXE. Nucleotide differences in flanking introns between these two pseudogenes and ABCC6 allowed us to design allele-specific primers that eliminated the amplification of both pseudogene sequences by PCR and provided reliable amplification of ABCC6-specific sequences only. The use of allele-specific PCR has revealed, thus far, two novel 5'-end PXE mutations, 179del9 and T364R in exons 2 and 9, respectively, and several polymorphisms within the upstream region and exons 1-9 of ABCC6. These strategies facilitate comprehensive analysis of ABCC6 for mutations in PXE.
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Affiliation(s)
- L Pulkkinen
- Department of Dermatology and Cutaneous Biology, Jefferson Medical College, and the Jefferson Institute of Molecular Medicine, Thomas Jefferson University, 233 S.10th Street, Philadelphia, PA 19107, USA
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Kanemura Y, Mori K, Sakakibara S, Fujikawa H, Hayashi H, Nakano A, Matsumoto T, Tamura K, Imai T, Ohnishi T, Fushiki S, Nakamura Y, Yamasaki M, Okano H, Arita N. Musashi1, an evolutionarily conserved neural RNA-binding protein, is a versatile marker of human glioma cells in determining their cellular origin, malignancy, and proliferative activity. Differentiation 2001; 68:141-52. [PMID: 11686236 DOI: 10.1046/j.1432-0436.2001.680208.x] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.7] [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: 11/20/2022]
Abstract
Tumor cells often express phenotypic markers that are specific to the cells from which they originated. A neural RNA-binding protein, Musashil, is an evolutionarily well-conserved marker for neural stem cells/ progenitor cells. To examine the origin of gliomas, we examined the expression of the human Musashil homolog, MSI1, in human glioma tissues and in normal human adult and fetal brains. As we had seen previously in rodents, in the normal human brain, MSI1 was expressed in cells located in the ventricular and subventricular zones, in GFAP-negative glial cells, and in GFAP-positive astrocytes. In glioblastomas, MSI1 was expressed in GFAP-negative tumor cells forming foci that were clearly demarcated and surrounded by GFAP-positive cells. Tumor cells arranged in pseudopalisades were also strongly immunoreactive with MSI1 antibodies. The percentage of MSI1-labeled tumor cells increased in higher-grade astrocytomas and correlated with proliferative activity, as estimated by an MIB-1 staining index. Our results indicate that MSI1 is an excellent marker for neural progenitor cells including neural stem cells in normal human brains. Furthermore, the expression of MSI1 correlates well with the immature nature as well as the malignancy of tumor cells in human gliomas. Thus, we expect the analysis of MSI1 expression to contribute to the understanding of the cellular origin and biology of human gliomas.
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Affiliation(s)
- Y Kanemura
- Institute for Clinical Research, Osaka National Hospital, Japan
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Lidorikis E, Bachlechner ME, Kalia RK, Nakano A, Vashishta P, Voyiadjis GZ. Coupling length scales for multiscale atomistics-continuum simulations: atomistically induced stress distributions in Si/Si3N4 nanopixels. Phys Rev Lett 2001; 87:086104. [PMID: 11497965 DOI: 10.1103/physrevlett.87.086104] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2000] [Indexed: 05/23/2023]
Abstract
A hybrid molecular-dynamics (MD) and finite-element simulation approach is used to study stress distributions in silicon/silicon-nitride nanopixels. The hybrid approach provides atomistic description near the interface and continuum description deep into the substrate, increasing the accessible length scales and greatly reducing the computational cost. The results of the hybrid simulation are in good agreement with full multimillion-atom MD simulations: atomic structures at the lattice-mismatched interface between amorphous silicon nitride and silicon induce inhomogeneous stress patterns in the substrate that cannot be reproduced by a continuum approach alone.
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Affiliation(s)
- E Lidorikis
- Concurrent Computing Laboratory for Materials Simulations, Biological Computation and Visualization Center, Department of Physics & Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803-4001, USA
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