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Matsubara C, Yamaguchi K, Imada R, Yoshizawa A, Bando Y, Kusaka T, Furuya J, Tohara H. Factors associated with the oral health status of patients with schizophrenia: A cross-sectional study. J Oral Rehabil 2024; 51:695-702. [PMID: 38044570 DOI: 10.1111/joor.13632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 11/07/2023] [Accepted: 11/20/2023] [Indexed: 12/05/2023]
Abstract
BACKGROUND Oral function deterioration attributed to ageing and medications is one of the main contributory factors of dysphagia. Therefore, oral health management is essential in older patients with schizophrenia. However, no previous studies have evaluated the oral function in patients with schizophrenia. OBJECTIVE We surveyed patients with schizophrenia to identify factors associated with ageing-related variations in oral function. METHODS This cross-sectional study included 34 male patients diagnosed with schizophrenia who were hospitalised at a psychiatric hospital between July and September 2021 and underwent a screening examination during dental care. The survey items included basic information, oral hygiene information, oral (oral diadochokinesis [ODK] and tongue pressure), physical function, and nutritional status. Thirty-six male community-dwelling older individuals were included as controls, and their outcomes were compared with those of patients with schizophrenia. RESULTS Compared with healthy older adults, patients with schizophrenia demonstrated significantly lower teeth numbers, ODK, and calf circumference (CC) (p < .05). Multiple regression analysis revealed that ODK was associated with age and schizophrenia (p < .05). Conversely, tongue pressure was associated with CC (p < .05), suggesting different factors' association with the parameters indicating decreased oral function. CONCLUSIONS Our study findings suggest that older patients with schizophrenia have decreased tongue pressure and generalised muscle mass, highlighting the need to manage oral function. Interventions for tongue pressure were more strongly associated with muscle mass and could be easier to manage than those with disease-dependent changes in ODK. TRIAL REGISTRATION Retrospectively registered.
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Affiliation(s)
- Chiaki Matsubara
- Department of Dental Hygiene, University of Shizuoka, Junior College, Shizuoka, Japan
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kohei Yamaguchi
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ryoko Imada
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
- Medical Corporation Takanawakai, Tokyo, Japan
| | - Akira Yoshizawa
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
- Dental Oral Surgery, Nasu Chuo Hospital, Tochigi, Japan
| | | | - Teruo Kusaka
- Takatsuki Hospital, Tokyo, Japan
- Welfare Planning Office Minister's Secretariat Ministry of Economy, Trade and Industry, Tokyo, Japan
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Junichi Furuya
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
- Division of Oral Function Management, Department of Oral Health Management, Showa University School of Dentistry, Tokyo, Japan
| | - Haruka Tohara
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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Tanaka A, Sata M, Okada Y, Teragawa H, Eguchi K, Shimabukuro M, Taguchi I, Matsunaga K, Kanzaki Y, Yoshida H, Ishizu T, Ueda S, Kitakaze M, Murohara T, Node K, Murohara T, Kitakaze M, Nishio Y, Inoue T, Ohishi M, Kario K, Sata M, Shimabukuro M, Shimizu W, Jinnouchi H, Taguchi I, Tomiyama H, Maemura K, Suzuki M, Ando S, Eguchi K, Kamiya H, Sakamoto T, Teragawa H, Nanasato M, Matsuhisa M, Ako J, Aso Y, Ishihara M, Kitagawa K, Yamashina A, Ishizu T, Ikehara Y, Ueda S, Takamori A, Tanaka A, Mori M, Yamaguchi K, Asaka M, Kaneko T, Sakuma M, Toyoda S, Nasuno T, Kageyama M, Teruo J, Toshie I, Kishi H, Yamada H, Kusunose K, Fukuda D, Yagi S, Yamaguchi K, Ise T, Kawabata Y, Kuroda A, Akasaki Y, Kurano M, Hoshide S, Komori T, Kabutoya T, Ogata Y, Koide Y, Kawano H, Ikeda S, Fukae S, Koga S, Higashi Y, Kishimoto S, Kajikawa M, Maruhashi T, Kubota Y, Shibata Y, Kuriyama N, Nakamura I, Hironori K, Takase B, Orita Y, Oshita C, Uchimura Y, Yoshida R, Yoshida Y, Suzuki H, Ogura Y, Maeda M, Takenaka M, Hayashi T, Hirose M, Hisauchi I, Kadokami T, Nakamura R, Kanda J, Matsunaga K, Hoshiga M, Sohmiya K, Kanzaki Y, Koyosue A, Uehara H, Miyagi N, Chinen T, Nakamura K, Nago C, Chiba S, Hatano S, Gima Y, Abe M, Ajioka M, Asano H, Nakashima Y, Osanai H, Kanbara T, Sakamoto Y, Oguri M, Ohguchi S, Takahara K, Izumi K, Yasuda K, Kudo A, Machii N, Morimoto R, Bando Y, Okumura T, Kondo T, Miura SI, Shiga Y, Mirii J, Sugihara M, Arimura T, Nakano J, Sakamoto T, Kodama K, Ohte N, Sugiura T, Wakami K, Takemoto Y, Yoshiyama M, Shuto T, Fukumoto K, Okada Y, Tanaka K, Sonoda S, Tokutsu A, Otsuka T, Uemura F, Koikawa K, Miyazaki M, Umikawa M, Narisawa M, Furuta M, Minami H, Doi M, Sugimoto K, Suzuki S, Kurozumi A, Nishio K. Effect of ipragliflozin on carotid intima-media thickness in patients with type 2 diabetes: a multicenter, randomized, controlled trial. Eur Heart J Cardiovasc Pharmacother 2022; 9:165-172. [PMID: 36308299 PMCID: PMC9892869 DOI: 10.1093/ehjcvp/pvac059] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/13/2022] [Accepted: 10/24/2022] [Indexed: 11/11/2022]
Abstract
AIMS To examine the effects of a 24-month treatment with ipragliflozin on carotid intima-media thickness (IMT) in type 2 diabetes patients. METHODS AND RESULTS In this multicenter, prospective, randomized, open-label, and blinded-endpoint investigator-initiated clinical trial, adults with type 2 diabetes and haemoglobin A1C (HbA1c) of 6.0-10.0% (42-86 mmol/mol) were randomized equally to ipragliflozin (50 mg daily) and non-sodium-glucose cotransporter-2 (SGLT2) inhibitor use of standard-care (control group) for type 2 diabetes and were followed-up to 24 months. The primary endpoint was the change in mean common carotid artery IMT (CCA-IMT) from baseline to 24 months. A total of 482 patients were equally allocated to the ipragliflozin (N = 241) and control (N = 241) groups, and 464 patients (median age 68 years, female 31.7%, median type 2 diabetes duration 8 years, median HbA1c 7.3%) were included in the analyses. For the primary endpoint, the changes in the mean CCA-IMT from baseline to 24 months were 0.0013 [95% confidence interval (CI), -0.0155-0.0182] mm and 0.0015 (95% CI, -0.0155-0.0184) mm in the ipragliflozin and control groups, respectively, with an estimated group difference (ipragliflozin-control) of -0.0001 mm (95% CI, -0.0191-0.0189; P = 0.989). A group difference in HbA1c change at 24 months was also non-significant between the treatment groups [-0.1% (95% CI, -0.2-0.1); P = 0.359]. CONCLUSION Twenty-four months of ipragliflozin treatment did not affect carotid IMT status in patients with type 2 diabetes recruited in the PROTECT study, relative to the non-SGLT2 inhibitor-use standard care for type 2 diabetes.
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Affiliation(s)
- Atsushi Tanaka
- Corresponding authors: Tel: +81-952-34-2364, Fax +81-952-34-2089,
| | - Masataka Sata
- Department of Cardiovascular Medicine, Tokushima University Hospital, 2-50-1 Kuramoto-machi, Tokushima, Tokushima, 770-8503, Japan
| | - Yosuke Okada
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku Kitakyushu, 807-8556, Japan
| | - Hiroki Teragawa
- Department of Cardiovascular Medicine, JR Hiroshima Hospital, 3-1-36 Futabanosato, Higashi-ku, Hiroshima, 732-0057, Japan
| | - Kazuo Eguchi
- Department of General Internal Medicine, Saitama Red Cross Hospital, 1-5 Shintoshin, Chuo-ku, Saitama, 330-0081, Japan
| | - Michio Shimabukuro
- Department of Diabetes, Endocrinology, and Metabolism, Fukushima Medical University, 1 Hikarigaoka, Fukushima, Fukushima, 960-1295, Japan
| | - Isao Taguchi
- Department of Cardiology, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minamikoshigaya, Koshigaya, 343-8555, Japan
| | - Kazuo Matsunaga
- Department of Internal Medicine, Imari-Arita Kyoritsu Hospital, 860 Ninoseko, Matsuura, Saga, 849-4141, Japan
| | - Yumiko Kanzaki
- Department of Cardiology, Osaka Medical and Pharmaceutical University, 2-7 Daigakumachi, Takatsuki, Osaka, 569-8686, Japan
| | - Hisako Yoshida
- Department of Medical Statistics, Osaka Metropolitan University, 1-4-3 Asahimachi, Abeno-ku, Osaka, Osaka, 545-8585, Japan
| | - Tomoko Ishizu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba, 2-1-1 Amakubo, Tsukuba, 305-8576, Japan
| | - Shinichiro Ueda
- Department of Clinical Pharmacology and Therapeutics, University of the Ryukyus, 207 Uehara, Nishihara, 903-0215, Okinawa, Japan
| | - Masafumi Kitakaze
- Hanwa Daini Senboku Hospital, 3176 Fukaikitamachi, Naka-ku, Sakai, 599-8271, Japan
| | - Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine, 65 Tsurumaicho, Showa-ku Nagoya, 466-0065, Japan
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Tsutsui H, Ide T, Ito H, Kihara Y, Kinugawa K, Kinugawa S, Makaya M, Murohara T, Node K, Saito Y, Sakata Y, Shimizu W, Yamamoto K, Bando Y, Iwasaki YK, Kinugasa Y, Mizote I, Nakagawa H, Oishi S, Okada A, Tanaka A, Akasaka T, Ono M, Kimura T, Kosaka S, Kosuge M, Momomura SI. JCS/JHFS 2021 Guideline Focused Update on Diagnosis and Treatment of Acute and Chronic Heart Failure. Circ J 2021; 85:2252-2291. [PMID: 34588392 DOI: 10.1253/circj.cj-21-0431] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University
| | - Tomomi Ide
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University
| | - Hiroshi Ito
- Department of Cardiovascular Medicine, Division of Biophysiological Sciences, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | | | - Koichiro Kinugawa
- Second Department of Internal Medicine, Faculty of Medicine, University of Toyama
| | - Shintaro Kinugawa
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University
| | | | - Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine
| | - Koichi Node
- Department of Cardiovascular Medicine, Saga University
| | - Yoshihiko Saito
- Department of Cardiovascular Medicine, Nara Medical University
| | - Yasushi Sakata
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine
| | - Wataru Shimizu
- Department of Cardiovascular Medicine, Nippon Medical School
| | - Kazuhiro Yamamoto
- Department of Cardiovascular Medicine and Endocrinology and Metabolism, Faculty of Medicine, Tottori University
| | - Yasuko Bando
- Department of Cardiology, Nagoya University Hospital
| | - Yu-Ki Iwasaki
- Department of Cardiovascular Medicine, Nippon Medical School
| | - Yoshiharu Kinugasa
- Department of Cardiovascular Medicine and Endocrinology and Metabolism, Faculty of Medicine, Tottori University
| | - Isamu Mizote
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine
| | | | - Shogo Oishi
- Department of Cardiology, Himeji Brain and Heart Center
| | - Akiko Okada
- Kitasato University Graduate School of Nursing
| | | | - Takashi Akasaka
- Department of Cardiovascular Medicine, Wakayama Medical University
| | - Minoru Ono
- Department of Cardiac Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Graduate School of Medicine and Faculty of Medicine, Kyoto University
| | - Shun Kosaka
- Department of Cardiology, Keio University School of Medicine
| | - Masami Kosuge
- Cardiovascular Center, Yokohama City University Medical Center
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Tsutsui H, Ide T, Ito H, Kihara Y, Kinugawa K, Kinugawa S, Makaya M, Murohara T, Node K, Saito Y, Sakata Y, Shimizu W, Yamamoto K, Bando Y, Iwasaki YK, Kinugasa Y, Mizote I, Nakagawa H, Oishi S, Okada A, Tanaka A, Akasaka T, Ono M, Kimura T, Kosaka S, Kosuge M, Momomura SI. JCS/JHFS 2021 Guideline Focused Update on Diagnosis and Treatment of Acute and Chronic Heart Failure. J Card Fail 2021; 27:1404-1444. [PMID: 34600838 DOI: 10.1016/j.cardfail.2021.04.023] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/16/2021] [Accepted: 04/27/2021] [Indexed: 02/06/2023]
Affiliation(s)
- Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomomi Ide
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroshi Ito
- Department of Cardiovascular Medicine, Division of Biophysiological Sciences, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yasuki Kihara
- Kobe City Medical Center General Hospital, Kobe, Japan
| | - Koichiro Kinugawa
- Second Department of Internal Medicine, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Shintaro Kinugawa
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Miyuki Makaya
- Kitasato University Graduate School of Nursing, Tokyo, Japan
| | - Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Koichi Node
- Department of Cardiovascular Medicine, Saga University, Saga, Japan
| | - Yoshihiko Saito
- Department of Cardiovascular Medicine, Nara Medical University, Kashihara, Japan
| | - Yasushi Sakata
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Wataru Shimizu
- Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan
| | - Kazuhiro Yamamoto
- Department of Cardiovascular Medicine and Endocrinology and Metabolism, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Yasuko Bando
- Department of Cardiology, Nagoya University Hospital, Nagoya, Japan
| | - Yu-Ki Iwasaki
- Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan
| | - Yoshiharu Kinugasa
- Department of Cardiovascular Medicine and Endocrinology and Metabolism, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Isamu Mizote
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hitoshi Nakagawa
- Department of Cardiovascular Medicine, Nara Medical University, Kashihara, Japan
| | - Shogo Oishi
- Department of Cardiology, Himeji Brain and Heart Center, Hyogo, Japan
| | - Akiko Okada
- Kitasato University Graduate School of Nursing, Tokyo, Japan
| | - Atsushi Tanaka
- Department of Cardiovascular Medicine, Saga University, Saga, Japan
| | - Takashi Akasaka
- Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan
| | - Minoru Ono
- Department of Cardiac Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Graduate School of Medicine and Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Shun Kosaka
- Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
| | - Masami Kosuge
- Cardiovascular Center, Yokohama City University Medical Center, Yokohama, Japan
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Hiraiwa H, Okumura T, Sawamura A, Sugiura Y, Kondo T, Watanabe N, Aoki S, Ichii T, Kano N, Fukaya K, Furusawa K, Morimoto R, Takeshita K, Bando Y, Murohara T. P712The Selvester QRS score as a predictor of cardiac events in nonischemic dilated cardiomyopathy. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- H. Hiraiwa
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - T. Okumura
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - A. Sawamura
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - Y. Sugiura
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - T. Kondo
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - N. Watanabe
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - S. Aoki
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - T. Ichii
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - N. Kano
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - K. Fukaya
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - K. Furusawa
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - R. Morimoto
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - K. Takeshita
- Nagoya University Hospital, Department of Clinical Laboratory, Nagoya, Japan
| | - Y. Bando
- Nagoya University, Department of Cardiology, Nagoya, Japan
| | - T. Murohara
- Nagoya University, Department of Cardiology, Nagoya, Japan
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Fukaya K, Takeshita K, Okumura T, Hiraiwa H, Aoki S, Ichii T, Sugiura Y, Kitagawa K, Kondo T, Watanabe N, Kano N, Furusawa K, Sawamura A, Morimoto R, Bando Y, Murohara T. Sokolow-Lyon voltage is suitable for monitoring improvement in cardiac function and prognosis of patients with idiopathic dilated cardiomyopathy. Ann Noninvasive Electrocardiol 2017; 22. [PMID: 28471539 DOI: 10.1111/anec.12431] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 12/19/2016] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND The clinical significance of electrocardiogram in the assessment of patients with idiopathic dilated cardiomyopathy (IDCM) is currently unknown. The aim of this study was to determine the feasibility of recording serial changes in Sokolow-Lyon voltage (∆%QRS-voltage) in one year to estimate left ventricular reverse remodeling (LVRR) and predict a prognosis of IDCM patients under tailored medical therapy. METHODS Sixty-eight consecutive patients with mild symptoms (52.1 ± 13 years old; 69% men; NYHA I/II/III/IV; 33/29/6/0) underwent electrocardiography and echocardiography at baseline and 12 month follow-up (follow-up period: 3.9 years). RESULTS LVRR was observed in 30 patients (44.1%). The ∆%QRS-voltage was significantly lower in the LVRR group (LVRR; -26.9%, non-LVRR: -9.2%, p < .001). Univariate analysis showed that ∆%QRS-voltage correlated with ∆%LV end-diastolic diameter (r = .634, p < .001), and with ∆%LV ejection fraction and ∆%LV mass index (r = -.412, p < .001; r = .429, p < .001 respectively). Using receiver operating characteristic curve analysis for the estimation of LVRR, ∆%QRS of -14.7% showed optimal sensitivity (63.2%) and specificity (83.3%) (AUC = 0.775, p < .001). The composite endpoints of cardiac death (n = 0), hospitalization for advanced heart failure (n = 11) and fatal arrhythmia (n = 2) were observed in 13 patients during the follow-up period. Kaplan-Meier analysis showed significantly higher event-free rate in patients of the low ∆%QRS-voltage group (<-14.7%) (83%) than those of the high group (66%, p = .022). CONCLUSIONS The present study showed that decrease in Sokolow-Lyon voltage is associated with improvement in cardiac function and favorable prognosis in IDCM patients on medical therapy, suggesting that this index is a feasible marker for response to treatment of IDCM.
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Affiliation(s)
- Kenji Fukaya
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kyosuke Takeshita
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Clinical Laboratory; Nagoya University Hospital, Nagoya, Japan
| | - Takahiro Okumura
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroaki Hiraiwa
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Soichiro Aoki
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takeo Ichii
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuki Sugiura
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Katsuhide Kitagawa
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Toru Kondo
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naoki Watanabe
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naoaki Kano
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kenji Furusawa
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akinori Sawamura
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ryota Morimoto
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasuko Bando
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Toyoaki Murohara
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Hiraiwa H, Okumura T, Kondo T, Kano N, Watanabe N, Fukaya K, Sawamura A, Morimoto R, Bando Y, Murohara T. Impact of the Selvester QRS Score on Prognosis and Myocardial Fibrosis in Non-Ischemic Dilated Cardiomyopathy. J Card Fail 2016. [DOI: 10.1016/j.cardfail.2016.07.263] [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: 10/21/2022]
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Sugiura Y, Okumura T, Kondo T, Sawamura A, Morimoto R, Bando Y, Murohara T. A Rapid Progressive Course of Patients with Lamin A/C Mutation Dilated Cardiomyopathy. J Card Fail 2016. [DOI: 10.1016/j.cardfail.2016.07.425] [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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Kano N, Okumura T, Hiraiwa H, Watanabe N, Kondo T, Fukaya K, Sawamura A, Morimoto R, Bando Y, Murohara T. Prognostic Impact of Combination of Sphericity Index and Late Gadolinium Enhancement on Cardiac Magnetic Resonance in Patients with Dilated Cardiomyopathy. J Card Fail 2016. [DOI: 10.1016/j.cardfail.2016.07.136] [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]
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Iihara N, Bando Y, Ohara M, Yoshida T, Nishio T, Okada T, Kirino Y. Polypharmacy of medications and fall-related fractures in older people in Japan: a comparison between driving-prohibited and driving-cautioned medications. J Clin Pharm Ther 2016; 41:273-8. [DOI: 10.1111/jcpt.12381] [Citation(s) in RCA: 9] [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: 10/23/2015] [Accepted: 02/22/2016] [Indexed: 12/12/2022]
Affiliation(s)
- N. Iihara
- Kagawa School of Pharmaceutical Sciences; Tokushima Bunri University; Sanuki-City Kagawa Japan
| | - Y. Bando
- Faculty of Health and Welfare; Tokushima Bunri University; Sanuki-City Kagawa Japan
| | - M. Ohara
- Ayagawa National Health Insurance Sue Hospital; Ayauta-gun Kagawa Japan
| | - T. Yoshida
- Faculty of Health and Welfare; Tokushima Bunri University; Sanuki-City Kagawa Japan
| | - T. Nishio
- Graduate School of Pharmaceutical Sciences; Tokushima Bunri University; Sanuki-City Kagawa Japan
- Department of Pharmacy; Sanuki City Hospital; Sanuki-City Kagawa Japan
| | - T. Okada
- Kagawa School of Pharmaceutical Sciences; Tokushima Bunri University; Sanuki-City Kagawa Japan
| | - Y. Kirino
- Kagawa School of Pharmaceutical Sciences; Tokushima Bunri University; Sanuki-City Kagawa Japan
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11
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Ide Y, Nagao K, Saito K, Komaguchi K, Fuji R, Kogure A, Sugahara Y, Bando Y, Golberg D. h-BN nanosheets as simple and effective additives to largely enhance the activity of Au/TiO2 plasmonic photocatalysts. Phys Chem Chem Phys 2016; 18:79-83. [DOI: 10.1039/c5cp05958e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Au/TiO2 plasmonic photocatalysts showed largely enhanced activity for the oxidation of formic acid in water into CO2 when simply mixed with h-BN nanosheets, as a result of electron transfer from photoexcited Au/TiO2 to the additive to retard charge recombination.
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Affiliation(s)
- Y. Ide
- International Center for Materials Nanoarchitectonics (WPI-MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
- Graduate School of Creative Science and Engineering
| | - K. Nagao
- Graduate School of Creative Science and Engineering
- Waseda University
- Tokyo 169-8050
- Japan
| | - K. Saito
- Graduate School of Creative Science and Engineering
- Waseda University
- Tokyo 169-8050
- Japan
| | - K. Komaguchi
- Graduate School of Engineering
- Department of Applied Chemistry
- Hiroshima University
- Higashi-Hiroshima 739-8527
- Japan
| | - R. Fuji
- Shimadzu Cooperation
- Hadano-shi
- Japan
| | - A. Kogure
- Shimadzu Techno-Research
- INC
- Hadano-shi
- Japan
| | - Y. Sugahara
- Graduate School of Creative Science and Engineering
- Waseda University
- Tokyo 169-8050
- Japan
- Department of Applied Chemistry
| | - Y. Bando
- International Center for Materials Nanoarchitectonics (WPI-MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
| | - D. Golberg
- International Center for Materials Nanoarchitectonics (WPI-MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
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12
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Miyamoto T, Bando Y, Koh E, Tsujimura A, Miyagawa Y, Iijima M, Namiki M, Shiina M, Ogata K, Matsumoto N, Sengoku K. A PLK4 mutation causing azoospermia in a man with Sertoli cell-only syndrome. Andrology 2015; 4:75-81. [PMID: 26452337 DOI: 10.1111/andr.12113] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 08/27/2015] [Accepted: 08/27/2015] [Indexed: 01/31/2023]
Abstract
About 15% of couples wishing to have children are infertile; approximately half these cases involve a male factor. Polo-like kinase 4 (PLK-4) is a member of the polo protein family and a key regulator of centriole duplication. Male mice with a point mutation in the Plk4 gene show azoospermia associated with germ cell loss. Mutational analysis of 81 patients with azoospermia and Sertoli cell-only syndrome (SCOS) identified one man with a heterozygous 13-bp deletion in the Ser/Thr kinase domain of PLK4. Division of centrioles occurred in wild-type PLK4-transfected cells, but was hampered in PLK-4-mutant transfectants, which also showed abnormal nuclei. Thus, this PLK4 mutation might be a cause of human SCOS and nonobstructive azoospermia.
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Affiliation(s)
- T Miyamoto
- Departments of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - Y Bando
- Functional Anatomy and Neuroscience, Asahikawa Medical University, Asahikawa, Japan
| | - E Koh
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - A Tsujimura
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Y Miyagawa
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - M Iijima
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - M Namiki
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - M Shiina
- Department of Biochemistry, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - K Ogata
- Department of Biochemistry, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - N Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - K Sengoku
- Departments of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
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13
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Fukaya K, Okumura T, Hiraiwa H, Watanabe N, Kano N, Mori H, Sawamura A, Morimoto R, Bando Y, Murohara T. Electrocardiographic Changes of Left Ventricular Reverse Remodeling in Dilated Cardiomyopathy Patients. J Card Fail 2015. [DOI: 10.1016/j.cardfail.2015.08.196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Kondo T, Okumura T, Watanabe N, Kano N, Mori H, Hukaya K, Sawamura A, Morimoto R, Bando Y, Murohara T. The Change of Cardio-Thoracic Ratio and Outcome in Patients with Acute Decompensated Heart Failure. J Card Fail 2015. [DOI: 10.1016/j.cardfail.2015.08.271] [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: 12/01/2022]
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15
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Sawamura A, Okumura T, Hiraiwa H, Kondo T, Watanabe N, Kano N, Fukaya K, Morimoto R, Bando Y, Murohara T. Clinical Significance of Lower Total Cholesterol Level in Mild Symptomatic Patients with Nonischemic Dilated Cardiomyopathy. J Card Fail 2015. [DOI: 10.1016/j.cardfail.2015.08.194] [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: 11/16/2022]
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16
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Murakami K, Tanaka T, Bando Y, Yoshida S. Nerve injury induces the expression of syndecan-1 heparan sulfate proteoglycan in primary sensory neurons. Neuroscience 2015; 300:338-50. [PMID: 26002314 DOI: 10.1016/j.neuroscience.2015.05.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 12/11/2014] [Revised: 04/26/2015] [Accepted: 05/13/2015] [Indexed: 12/18/2022]
Abstract
Heparan sulfate proteoglycans (HSPGs) have important functions in development of the central nervous system; however, their functions in nerve injury are not yet fully understood. We previously reported the expression of syndecan-1, a type of HSPG, in cranial motor neurons after nerve injury, suggesting the importance of syndecan-1 in the pathology of motor nerve injury. In this study, we examined the expression of syndecan-1, a type of HSPG, in primary sensory neurons after nerve injury in mice. Sciatic nerve axotomy strongly induced the expression of syndecan-1 in a subpopulation of injured dorsal root ganglion (DRG) neurons, which were small in size and had CGRP- or isolectin B4-positive fibers. Syndecan-1 was also distributed in the dorsal horn of the spinal cord ipsilateral to the axotomy, and located on the membrane of axons in lamina II of the dorsal horn. Not only sciatic nerve axotomy, infraorbital nerve axotomy also induced the expression of syndecan-1 in trigeminal ganglion neurons. Moreover, syndecan-1 knockdown in cultured DRG neurons induced a shorter neurite extension. These results suggest that syndecan-1 expression in injured primary sensory neurons may have functional roles in nerve regeneration and synaptic plasticity, resulting in the development of neuropathic pain.
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Affiliation(s)
- K Murakami
- Department of Functional Anatomy and Neuroscience, Asahikawa Medical University, Japan.
| | - T Tanaka
- Department of Functional Anatomy and Neuroscience, Asahikawa Medical University, Japan
| | - Y Bando
- Department of Functional Anatomy and Neuroscience, Asahikawa Medical University, Japan
| | - S Yoshida
- Department of Functional Anatomy and Neuroscience, Asahikawa Medical University, Japan
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17
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Kido J, Bando Y, Bando M, Kajiura Y, Hiroshima Y, Inagaki Y, Murata H, Ikuta T, Kido R, Naruishi K, Funaki M, Nagata T. YKL-40 level in gingival crevicular fluid from patients with periodontitis and type 2 diabetes. Oral Dis 2015; 21:667-73. [PMID: 25740558 DOI: 10.1111/odi.12334] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 01/24/2015] [Revised: 02/16/2015] [Accepted: 02/25/2015] [Indexed: 01/15/2023]
Abstract
OBJECTIVE YKL-40 is a chitin-binding glycoprotein, the level of which increases in inflammatory diseases, diabetes mellitus (DM), cardiovascular diseases, and tumors. Gingival crevicular fluid (GCF) contains many proteins and markers of periodontitis. The purpose of this study was to investigate YKL-40 level in GCF from patients with periodontitis and DM and the association between YKL-40 level and chronic periodontitis (CP) or DM. SUBJECTS AND METHODS The subjects were 121 patients with DM, CP, DM and periodontitis (DM-P), and healthy subjects (H). GCF was collected using paper strips after the sites for GCF collection were clinically evaluated for probing depth (PD), gingival index (GI), and bleeding on probing (BOP). YKL-40 in GCF was identified by Western blotting, and its level was determined by ELISA. RESULTS YKL-40 was contained in GCF samples from H, DM, CP, and DM-P sites, and its levels (amount and concentration) in CP and DM-P were significantly higher than those in H and DM. GCF YKL-40 level significantly correlated with PD and GI, and its level in BOP-positive sites was significantly higher than that in BOP-negative ones. CONCLUSIONS GCF YKL-40 level was elevated in periodontitis, but not DM. YKL-40 in GCF may be an inflammatory marker for periodontitis.
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Affiliation(s)
- J Kido
- Department of Periodontology and Endodontology, Institute of Health Bioscience, The University of Tokushima Graduate School, Tokushima, Japan
| | - Y Bando
- Clinical Research Center for Diabetes, Tokushima University Hospital, Tokushima, Japan
| | - M Bando
- Department of Periodontology and Endodontology, Institute of Health Bioscience, The University of Tokushima Graduate School, Tokushima, Japan
| | - Y Kajiura
- Department of Periodontology and Endodontology, Institute of Health Bioscience, The University of Tokushima Graduate School, Tokushima, Japan
| | - Y Hiroshima
- Clinical Research Center for Diabetes, Tokushima University Hospital, Tokushima, Japan
| | - Y Inagaki
- Department of Periodontology and Endodontology, Institute of Health Bioscience, The University of Tokushima Graduate School, Tokushima, Japan
| | - H Murata
- Department of Periodontology and Endodontology, Institute of Health Bioscience, The University of Tokushima Graduate School, Tokushima, Japan
| | - T Ikuta
- Department of Periodontology and Endodontology, Institute of Health Bioscience, The University of Tokushima Graduate School, Tokushima, Japan
| | - R Kido
- Department of Anatomy and Cell Biology, Institute of Health Bioscience, The University of Tokushima Graduate School, Tokushima, Japan
| | - K Naruishi
- Department of Periodontology and Endodontology, Institute of Health Bioscience, The University of Tokushima Graduate School, Tokushima, Japan
| | - M Funaki
- Clinical Research Center for Diabetes, Tokushima University Hospital, Tokushima, Japan
| | - T Nagata
- Department of Periodontology and Endodontology, Institute of Health Bioscience, The University of Tokushima Graduate School, Tokushima, Japan
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18
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Bando Y, Monji A. INCRETIN AMELIORATES DIABETIC MICROANGIOPATHY IN HEART BY ACTIVATION OF AUTOPHAGY VIA PKA/AMPK AXIS. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.1040.3] [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: 11/11/2022]
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19
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Kano N, Okumura T, Sawamura A, Watanabe N, Fukaya K, Mori H, Morimoto R, Hirashiki A, Bando Y, Murohara T. Left Ventricular Contractile Entropy in 99mTc-Sestamibi SPECT is a Novel Prognostic Predictor in Patients with Non-ischemic Dilated Cardiomyopathy. J Card Fail 2014. [DOI: 10.1016/j.cardfail.2014.07.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Okamoto R, Hirashiki A, Cheng XW, Yamada T, Shimazu S, Shinoda N, Okumura T, Takeshita K, Bando Y, Kondo T, Murohara T. Usefulness of serum cardiac troponins T and I to predict cardiac molecular changes and cardiac damage in patients with hypertrophic cardiomyopathy. Int Heart J 2013; 54:202-6. [PMID: 23924931 DOI: 10.1536/ihj.54.202] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [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: 11/18/2022]
Abstract
Cardiac troponins provide diagnostic and prognostic information on ischemic heart disease, but their roles in hypertrophic cardiomyopathy (HCM) are unclear. We sought to investigate the associations between elevated serum cardiac troponins T (cTnT) and I (cTnI) levels and cardiac injury in patients with HCM. We measured serum cTnT and cTnI in a peripheral vein of 73 consecutive HCM patients in stable condition. In addition, to examine the transcardiac release of cTnT and that of cTnI, we measured them in the aortic root and coronary sinus. Mitochondrial- and Ca(2+)-handling-related gene expression assays were analyzed by endomyocardial biopsy specimens. Based on the median value of serum cTnT, we divided the patients into two groups [group A: cTnT < 0.008 ng/mL, (n = 35), group B: cTnT group ≥ 0.008 ng/mL, (n = 38)]. Left ventricular (LV) mass index was significantly higher, while LV ejection fraction was significantly lower, in group B than in group A. Meanwhile, there was a significantly positive correlation between the transcardiac gradient of serum cTnT or cTnI, and the mRNA level of troponin I3 (r = 0.473, r = 0.516, respectively). The mRNA level of troponin T2 significantly correlated with mRNA levels of sarco-endoplasmic reticulum Ca(2+)-ATPase 2, cytochrome c oxidase subunit 5B, and troponin I3 (r = 0.486, r = 0.957, r = 0.633, respectively). These findings indicate that both elevated serum cTnT and cTnI might be associated with cardiac dysfunction in patients with HCM, resulting from the impairment of mitochondrial function and Ca(2+)-handling protein.
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Affiliation(s)
- Rie Okamoto
- Department of Cardiology, Nagoya University Graduate School of Medicine, Aichi, Japan
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21
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Morimoto R, Okumura T, Shimizu S, Shimazu S, Yamada T, Hirashiki A, Takeshita K, Bando Y, Kondo T, Murohara T. Impaired force-frequency relation pattern as a novel prognostic predictor in patients with hypertrophic cardiomyopathy. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.867] [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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22
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Toba H, Kondo K, Sadohara Y, Otsuka H, Morimoto M, Kajiura K, Nakagawa Y, Yoshida M, Kawakami Y, Takizawa H, Kenzaki K, Sakiyama S, Bando Y, Tangoku A. 18F-fluorodeoxyglucose positron emission tomography/computed tomography and the relationship between fluorodeoxyglucose uptake and the expression of hypoxia-inducible factor-1 , glucose transporter-1 and vascular endothelial growth factor in thymic epithelial tumours. Eur J Cardiothorac Surg 2013; 44:e105-12. [DOI: 10.1093/ejcts/ezt263] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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23
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Wu XC, Tao YR, Li L, Bando Y, Golberg D. Centimeter-long Ta3N5 nanobelts: synthesis, electrical transport, and photoconductive properties. Nanotechnology 2013; 24:175701. [PMID: 23548821 DOI: 10.1088/0957-4484/24/17/175701] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Centimeter-long Ta3N5 nanobelts were synthesized by a reaction of centimeter-long TaS3 nanobelt templates with flowing NH3 at 800 °C for 2 h. The nanobelts have cross-sections of about 50 × 100 nm(2), and lengths up to 0.5 cm. A field effect transistor (FET) made of a single Ta3N5 nanobelt was fabricated on silica/silicon substrate. The electric transport of the individual nanobelt revealed that the nanobelt is a semiconductor with a room-temperature resistivity of 11.88 Ω m, and can be fitted well with an empirical formula ρ = 10831 exp(-T/43.8) - 22.6, where ρ is resistivity (Ω m) and T is absolute temperature (K). The FET showed decent photoconductive performance under light irradiation in the range 250-630 nm. The photocurrent increased by nearly 10 times the dark current under 450 nm light irradiation at an applied voltage of 5.0 V.
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Affiliation(s)
- X C Wu
- Key Laboratory of Mesoscopic Chemistry of MOE, and School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, People's Republic of China.
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24
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Abstract
Obesity and type 2 diabetes (T2D) are characterized by decreased insulin sensitivity and higher concentrations of free fatty acids (FFAs) in plasma. Among FFAs, saturated fatty acids (SFAs), such as palmitate, have been proposed to promote inflammatory responses. Primary Sjögren's syndrome (SS) is an autoimmune disease characterized by inflammatory mononuclear cell infiltration and destruction of epithelial cells in the salivary and lacrimal glands. IL-6 production and α-fodrin degradation are increased in salivary gland epithelial cells of patients with primary SS. Although previous studies have shown a link between SS and either dyslipidemia or T2D, little is known about the clinical significance of FFAs in primary SS. Here we report that SFAs, but not unsaturated fatty acids, induced IL-6 production via NF-κB and p38 MAPK activation in human salivary gland epithelial cells. Moreover, palmitate induced apoptosis and α-fodrin degradation by caspase-3 activation. Unlike salivary gland epithelial cells, induction of IL-6 production and the degradation of α-fodrin in response to palmitate were undetectable in squamous carcinoma cells and keratinocytes. Taken together, SFAs induced IL-6 production and α-fodrin degradation in salivary gland epithelial cells, implicating a potential link between the pathogenesis of primary SS and SFAs level in plasma.
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Affiliation(s)
- Y Shikama
- Clinical Research Center for Diabetes, Tokushima University Hospital, 2-50-1 Kuramoto-cho, Tokushima 770-8503, Japan.
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25
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Murakami K, Jiang YP, Tanaka T, Bando Y, Mitrovic B, Yoshida S. In vivo analysis of kallikrein-related peptidase 6 (KLK6) function in oligodendrocyte development and the expression of myelin proteins. Neuroscience 2013; 236:1-11. [PMID: 23376368 DOI: 10.1016/j.neuroscience.2012.12.073] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Revised: 11/30/2012] [Accepted: 12/22/2012] [Indexed: 01/19/2023]
Abstract
Oligodendrocytes are important for not only nerve conduction but also central nervous system (CNS) development and neuronal survival in a variety of conditions. Kallikrein-related peptidase 6 (KLK6) is expressed in oligodendrocytes in the CNS and its expression is changed in several physiological and pathological conditions, especially following spinal cord injury (SCI) and experimental autoimmune encephalomyelitis. In this study, we investigated the functions of KLK6 in oligodendrocyte lineage cell development and the production of myelin proteins using KLK6-deficient (KLK6(-/-)) mice. KLK6(-/-) mice were born without apparent defects and lived as long as wild-type (WT) mice. There was no significant difference in the numbers of oligodendrocyte precursor cells and mature oligodendrocytes in the adult naive spinal cord between WT and KLK6(-/-) mice. However, there were fewer mature oligodendrocytes in the KLK6(-/-) spinal cord than in the WT spinal cord at postnatal day 7 (P7). Expression of myelin basic protein (MBP) and oligodendrocyte-specific protein/claudin-11, major myelin proteins, was also decreased in the KLK6(-/-) spinal cord compared with the WT spinal cord at P7-21. Moreover, after SCI, the amount of MBP in the damaged spinal cords of KLK6(-/-) mice was significantly less than that in the damaged spinal cords of WT mice. These results indicate that KLK6 plays a functional role in oligodendrocyte development and the expression of myelin proteins.
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Affiliation(s)
- K Murakami
- Department of Functional Anatomy and Neuroscience, Asahikawa Medical University, Asahikawa, Japan.
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26
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Tatemoto Y, Michikoshi T, Higashino T, Maeda S, Maeda S, Bando Y. Behavior of Pieces of Plastic Sheet in Solid-Liquid Fluidized Bed with Stirring. Chem Eng Technol 2012. [DOI: 10.1002/ceat.201200201] [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: 11/10/2022]
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27
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Bando Y. [The functional role of stress proteins in ER-stress mediated cell death]. Kaibogaku Zasshi 2011; 86:75-76. [PMID: 21950014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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28
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Bando Y, Mitomo M, Kitami Y, Izumi F. Structure and composition analysis of silicon aluminium oxynitride polytypes by combined use of structure imaging and microanalysis. J Microsc 2011. [DOI: 10.1111/j.1365-2818.1986.tb02760.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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29
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Han G, Weber D, Neubrech F, Yamada I, Mitome M, Bando Y, Pucci A, Nagao T. Infrared spectroscopic and electron microscopic characterization of gold nanogap structure fabricated by focused ion beam. Nanotechnology 2011; 22:275202. [PMID: 21597137 DOI: 10.1088/0957-4484/22/27/275202] [Citation(s) in RCA: 5] [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] [Indexed: 05/30/2023]
Abstract
Using infrared spectroscopy of plasmonic resonances and mapping of elemental composition and structure, we investigated the correlation between optical and structural properties of nanometre-scale gaps in gold nanorod dimers fabricated by electron beam lithography (EBL) and focused ion beam (FIB) milling. In spite of their very similar scanning electron microscopy (SEM) images, a fully cut nanogap and a shallower cut with slight imperfection near the gap region were clearly distinguished by their strongly different infrared plasmonic resonance behaviour. The differences in the infrared spectra are related to different structural and chemical results from elaborated cross-sectional transmission electron micrographs and energy dispersive x-ray spectrometry (EDX) mapping of the gap region.
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Affiliation(s)
- G Han
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
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30
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Sakakibara M, Hirashiki A, Cheng XW, Bando Y, Ohshima K, Okumura T, Funahashi H, Ohshima S, Murohara T. Association of diabetes mellitus with myocardial collagen accumulation and relaxation impairment in patients with dilated cardiomyopathy. Diabetes Res Clin Pract 2011; 92:348-55. [PMID: 21414680 DOI: 10.1016/j.diabres.2011.02.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [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] [Received: 12/25/2010] [Revised: 01/30/2011] [Accepted: 02/15/2011] [Indexed: 10/18/2022]
Abstract
AIMS To assess the effects of diabetes mellitus (DM) on myocardial collagen accumulation, myocardial relaxation, and prognosis in patients with dilated cardiomyopathy (DCM). METHODS A total of 102 consecutive DCM patients with a New York Heart Association functional class of I or II were enrolled. Patients were allocated to two groups on the basis of the presence (DCM+DM group, n = 30) or absence (DCM-DM group, n = 72) of DM. Cardiac catheterization performed and left ventricular pressure were measured in all patients. The pressure half-time (T(1/2)) was determined as an index of myocardial relaxation function. Endomyocardial specimens were subjected to histological analysis. RESULTS The T(1/2) was significantly longer (P < 0.001) and the collagen volume fraction was significantly greater (P = 0.018) in the DCM + DM group than in the DCM-DM group. Multivariate analysis showed that DM was significantly associated with increased incidence of cardiac events (hazard ratio, 3.7; 95% confidence interval, 1.05 to 13.16; P = 0.03). CONCLUSIONS The prognosis of DCM patients with DM was worse than that of those without DM. Impairment of myocardial relaxation, increased myocardial fibrosis, and mitochondrial degeneration associated with DM may underlie this difference.
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Affiliation(s)
- Masaki Sakakibara
- Department of Cardiology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Shouwa-ku, Nagoya 466-8550, Japan
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31
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Tatemoto Y, Higashino T, Suzuki Y, Michikoshi T, Maeda S, Bando Y. Prediction of the Behavior of a Liquid-Fluidized Bed of Inert Particles Used for Separation by Density. Chem Eng Technol 2011. [DOI: 10.1002/ceat.201100012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Li L, Zhang YX, Fang XS, Zhai TY, Liao MY, Wang HQ, Li GH, Koide Y, Bando Y, Golberg D. Sb(2)O(3) nanobelt networks for excellent visible-light-range photodetectors. Nanotechnology 2011; 22:165704. [PMID: 21393818 DOI: 10.1088/0957-4484/22/16/165704] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Excellent photoconductive properties have been found in Sb(2)O(3) nanobelts synthesized by a surfactant-assisted solvothermal method. Visible-light photodetectors have been designed from Sb(2)O(3) nanobelt networks using micrometer-wide gold wires as masks. Photodetectors show high sensitivity to visible light, high stability, and reproducibility. Fast response and decay times (<0.3 s) are comparable or even better than these parameters in many other metal oxide nanoscale photodetectors. The dominant mechanism of excellent photoconductivity is attributed to the barrier height modulations in the nanobelt-to-nanobelt contact regions. These results demonstrate that Sb(2)O(3) nanobelt networks can indeed serve as high-performance photodetectors in the visible light range.
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Affiliation(s)
- L Li
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan.
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Golberg D, Bando Y, Han W, Bourgeois L, Kurashima K, Sato T. Multi-and Single-Walled Boron Nitride Nanotubes Produced From Carbon Nanotubes by a Substitution Reaction. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-593-27] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTBoron nitride (BN) multi-walled (MWNT) or single-walled (SWNT) nanotubes were synthesized from carbon MWNT and SWNT templates, respectively, under heating of C nanotubes together with boron trioxide in a flowing nitrogen atmosphere. B and N atom substitution for C atoms in the nanotubular shells during C oxidation by the B2O3 vapor in the N2 flow is thought to underlie the formation mechanism. Structural and chemical BN MWNT/SWNT analyses were performed by means of high-resolution electron microscopy (HRTEM) and electron energy loss spectroscopy (EELS), respectively. In particular, BN MWNT shell structure and defects, and electron irradiation stability were studied. Finally, the prospects of using the substitution technique for the synthesis of other advanced nanostructures made of BN (nanorods, nanoplates and nanocones) are discussed.
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Bando Y, Shigeta T, Monji A, Cheng XW, Murohara T. Insulin Resistance Suppresses Cardiac Autophagy Through the AMPK/mTOR Pathway in Type 2 Diabetes. J Card Fail 2010. [DOI: 10.1016/j.cardfail.2010.07.229] [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: 11/29/2022]
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Wang EL, Qian ZR, Nakasono M, Tanahashi T, Yoshimoto K, Bando Y, Kudo E, Shimada M, Sano T. High expression of Toll-like receptor 4/myeloid differentiation factor 88 signals correlates with poor prognosis in colorectal cancer. Br J Cancer 2010; 102:908-15. [PMID: 20145615 PMCID: PMC2833250 DOI: 10.1038/sj.bjc.6605558] [Citation(s) in RCA: 179] [Impact Index Per Article: 12.8] [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] [Indexed: 02/07/2023] Open
Abstract
Background: The Toll-like receptor (TLR) 4 signalling pathway has been shown to have oncogenic effects in vitro and in vivo. To demonstrate the role of TLR4 signalling in colon tumourigenesis, we examined the expression of TLR4 and myeloid differentiation factor 88 (MyD88) in colorectal cancer (CRC). Methods: The expression of TLR4 and MyD88 in 108 CRC samples, 15 adenomas, and 15 normal mucosae was evaluated by immunohistochemistry, and the correlations between their immunoscores and clinicopathological variables, including disease-free survival (DFS) and overall survival (OS), were analysed. Results: Compared with normal mucosae and adenomas, 20% cancers displayed high expression of TLR4, and 23% cancers showed high expression of MyD88. The high expression of TLR4 and MyD88 was significantly correlated with liver metastasis (P=0.0001, P=0.0054). In univariate analysis, the high expression of TLR4 was significantly associated with shorter OS (hazard ratio (HR): 2.17; 95% confidence interval (95% CI): 1.15–4.07; P=0.015). The high expression of MyD88 expression was significantly associated with poor DFS and OS (HR: 2.33; 95% CI: 1.31–4.13; P=0.0038 and HR: 3.03; 95% CI: 1.67–5.48; P=0.0002). The high combined expression of TLR4 and MyD88 was also significantly associated with poor DFS and OS (HR: 2.25; 95% CI: 1.27–3.99; P=0.0053 and HR: 2.97; 95% CI: 1.64–5.38; P=0.0003). Multivariate analysis showed that high expressions of TLR4 (OS: adjusted HR: 1.88; 95% CI: 0.99–3.55; P=0.0298) and MyD88 (DFS: adjusted HR: 1.93; 95% CI: 1.01–3.67; P=0.0441; OS: adjusted HR: 2.25; 95% CI: 1.17–4.33; P=0.0112) were independent prognostic factors of OS. Furthermore, high co-expression of TLR4/MyD88 was strongly associated with both poor DFS and OS. Conclusion: Our findings suggest that high expression of TLR4 and MyD88 is associated with liver metastasis and is an independent predictor of poor prognosis in patients with CRC.
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Affiliation(s)
- E L Wang
- Department of Human Pathology, Institute of Health Biosciences, University of Tokushima Graduate School, 3-18-15 Kuramoto-cho, Tokushima, Japan
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Abstract
A submicrometer-sized pH sensor based on biotin-fluorescein-functionalized multiwalled BN nanotubes with anchored Ag nanoparticles is designed. Intrinsic pH-dependent photoluminescence and Raman signals in attached fluorescein molecules enhanced by Ag nanoparticles allow this novel nanohybrid to perform as a practical pH sensor. It is able to work in a submicrometer-sized space. For example, the sensor may determine the environmental pH of sub-units in living cells where a traditional optical fiber sensor fails because of spatial limitations.
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Affiliation(s)
- Q Huang
- World Premier International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan.
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Wang JB, Li K, Zhong XL, Zhou YC, Fang XS, Tang CC, Bando Y. Considerable Enhancement of Field Emission of SnO(2) Nanowires by Post-Annealing Process in Oxygen at High Temperature. Nanoscale Res Lett 2009; 4:1135-1140. [PMID: 20596286 PMCID: PMC2894354 DOI: 10.1007/s11671-009-9367-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2009] [Accepted: 05/28/2009] [Indexed: 05/27/2023]
Abstract
The field emission properties of SnO(2) nanowires fabricated by chemical vapor deposition with metallic catalyst-assistance were investigated. For the as-fabricated SnO(2) nanowires, the turn-on and threshold field were 4.03 and 5.4 V/mum, respectively. Considerable enhancement of field emission of SnO(2) nanowires was obtained by a post-annealing process in oxygen at high temperature. When the SnO(2) nanowires were post-annealed at 1,000 degrees C in oxygen, the turn-on and threshold field were decreased to 3.77 and 4.4 V/mum, respectively, and the current density was increased to 6.58 from 0.3 mA/cm(2) at the same applied electric field of 5.0 V/mum.
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Affiliation(s)
- JB Wang
- Institute of Modern Physics, Xiangtan University, 411105, Xiangtan, Hunan, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, 411105, Xiangtan, Hunan, China
| | - K Li
- Institute of Modern Physics, Xiangtan University, 411105, Xiangtan, Hunan, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, 411105, Xiangtan, Hunan, China
| | - XL Zhong
- Institute of Modern Physics, Xiangtan University, 411105, Xiangtan, Hunan, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, 411105, Xiangtan, Hunan, China
| | - YC Zhou
- Institute of Modern Physics, Xiangtan University, 411105, Xiangtan, Hunan, China
- Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, 411105, Xiangtan, Hunan, China
| | - XS Fang
- Nanoscale Materials Center, National Institute for Materials Science, Tsukuba, 3050047, Japan
| | - CC Tang
- Nanoscale Materials Center, National Institute for Materials Science, Tsukuba, 3050047, Japan
| | - Y Bando
- Nanoscale Materials Center, National Institute for Materials Science, Tsukuba, 3050047, Japan
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Okazaki K, Kira M, Yamai H, Nakagawa Y, Nagao T, Kenzaki K, Bando Y, Morimoto T, Kondo K, Tangoku A. Phase II trial report of the new neoadjuvant chemotherapy with S-1 and docetaxel for advanced breast cancer. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.1121] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
1121 Background: Primary chemotherapy with anthracycline and taxanes is a gold standard regimen which realize pathologically complete response in 20% of patients with advanced breast cancer. However, sequential administration of anthracycline and taxanes induces serious side effects. This regimen is therefore difficult to use for higj-risk patients. S-1 is a new oral anti-tumor drug, which is composed of 5-fluoro-1-(tetrahydro -2- furanyl)-2, 4(1H, 3H)-pyrimidinedione (Tegafur, FT), 5-chloro-2, 4- dihydroxypyridine (Gimeracil, CDHP) and potassium 1, 2, 3, 4-tetrahydro-2, 4-dioxo-1, 3, 5-triazine-6-carboxylate (potassium Oteracil, Oxo). Combined treatment with docetaxel and S-1 yielded significant response in patients with gastric cancer with minimal side effects due to biochemical modulation of both CDHP and Oxo. The purpose of this study was to evaluate the efficacy and toxicity of docetaxel in combination with S-1 for advanced breast cancer. Methods: Patients with advanced breast cancer (Stage IIA to IV) were treated with i.v. docetaxel (40mg/m2) on day 1 and oral S-1(80mg as FT/m2/day) on days 1 to 14 every 3 weeks for 8 courses. The clinical response was evaluated every 3 months with MMG, MRI, ultrasonography and CT scan based on RECIST criteria. The patients underwent surgery after completion of chemotherapy. Pathologic examination was performed with thin-sliced specimens. The specimens were also reserved for genetic analysis. Written informed consent was obtained from all patients or family members after the Ethics Committee of Tokushima University Hospital approved the study protocol. Results: Twenty-two patients completed the therapy and underwent surgery. Four cases (18.2%) of pathologic complete response (pCR) were recognized on pathologic examination. The response rate was 90.9% and 95.5% of the patients could preserved their breast. Bone marrow suppression was substantial, and low-grade anorexia, nausea, and peripheral neuropathy were observed. Conclusions: The new regimen of S-1 combined with docetaxel is expected to exhibit satisfactory efficacy in treating advanced breast cancer as primary chemotherapy. Genetic analysis will be performed to examine and to find biomarkers for measurement of the efficacy of this therapy. No significant financial relationships to disclose.
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Affiliation(s)
- K. Okazaki
- The University of Tokushima Graduate School, Tokushima, Japan; Department of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - M. Kira
- The University of Tokushima Graduate School, Tokushima, Japan; Department of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - H. Yamai
- The University of Tokushima Graduate School, Tokushima, Japan; Department of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - Y. Nakagawa
- The University of Tokushima Graduate School, Tokushima, Japan; Department of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - T. Nagao
- The University of Tokushima Graduate School, Tokushima, Japan; Department of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - K. Kenzaki
- The University of Tokushima Graduate School, Tokushima, Japan; Department of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - Y. Bando
- The University of Tokushima Graduate School, Tokushima, Japan; Department of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - T. Morimoto
- The University of Tokushima Graduate School, Tokushima, Japan; Department of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - K. Kondo
- The University of Tokushima Graduate School, Tokushima, Japan; Department of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - A. Tangoku
- The University of Tokushima Graduate School, Tokushima, Japan; Department of Pathology, Tokushima University Hospital, Tokushima, Japan
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Toba H, Sakiyama S, Morimoto M, Takizawa H, Kenzaki K, Kondo K, Bando Y, Tangoku A. [Surgically treated pleomorphic carcinoma of the lung]. Kyobu Geka 2009; 62:202-206. [PMID: 19280950] [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: 05/27/2023]
Abstract
We experienced 3 resected cases of pleomorphic carcinoma of the lung. Each cases were 74-year-old man (case 1), 74-year-old woman (case 2) and 69-year-old man (case 3). Two patients (case 1 and 2) were histologically diagnosed as pleomorphic carcinoma composed of spindle cell carcinoma with giant cell carcinoma. One patient (case 3) was similarly diagnosed as pleomorphic carcinoma composed of spindle cell carcinoma with adenocarcinoma and squamous cell carcinoma. Although lymph nodes metastasis were not recognized in all patients, invasion to vessels were recognized in 2 patients (case 1 and 3). In one patient (case 1), recurrence was recognized at contralateral side 1 month after surgery and he died of other disease 2 months after surgery. The other 2 patients were alive without recurrence 24 and 5 months after surgery. Recently it is reported that recurrence is recognized at early phase after surgery and prognosis is poor in a case with vessel invasions in spite of pathological NO state. Since one patient (case 3) had nonmetastatic lymph nodes with vessel invasions, careful observation is considered to be necessary.
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Affiliation(s)
- H Toba
- Department of Thoracic and Endocrine Surgery and Oncology, the University of Tokushima Graduate School, Tokushima, Japan
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Bando Y, Noguchi K, Kobayashi H, Yoshida N, Ishikawa I, Izumi Y. Cyclooxygenase-2-derived prostaglandin E2 is involved in vascular endothelial growth factor production in interleukin-1alpha-stimulated human periodontal ligament cells. J Periodontal Res 2009; 44:395-401. [PMID: 19210337 DOI: 10.1111/j.1600-0765.2008.01118.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND AND OBJECTIVE Prostaglandin E(2), which exerts its actions via EP receptors (EP1, EP2, EP3 and EP4), is a bioactive metabolite of arachidonic acid produced by cyclooxygenase-1 and/or cyclooxygenase-2. Interleukin-1alpha induces prostaglandin E(2) production via cyclooxygenase-2 in human periodontal ligament cells. Vascular endothelial growth factor is a key regulator of physiologic as well as pathologic angiogenesis and has been indicated to be involved in the pathology of periodontal diseases. In the present study, we investigated whether interleukin-1alpha induced vascular endothelial growth factor production in human periodontal ligament cells and whether cyclooxygenase-2-derived prostaglandin E(2) regulated interleukin-1alpha-induced vascular endothelial growth factor production. MATERIAL AND METHODS Human periodontal ligament cells were obtained from extracted teeth of periodontally healthy subjects. After pre-incubation with a nonselective cyclooxygenase-1/2 inhibitor, indomethacin or a selective cyclooxygenase-2 inhibitor (NS-398), periodontal ligament cells were treated with or without interleukin-1alpha, prostaglandin E(2), various EP receptor agonists and dibutyryl cAMP (a cAMP analogue). The levels of vascular endothelial growth factor and prostaglandin E(2) in the culture supernatant were measured by enzyme-linked immunosorbent assay. The vascular endothelial growth factor mRNA expression was evaluated by semiquantitative reverse transcription-polymerase chain reaction. RESULTS Interleukin-1alpha induced vascular endothelial growth factor production in a dose-dependent and time-dependent manner. The interleukin-1alpha-induced vascular endothelial growth factor mRNA and protein expression was inhibited to the same extent by indomethacin and NS-398. Indomethacin and NS-398 completely inhibited interleukin-1alpha-induced prostaglandin E(2) production. Exogenous prostaglandin E(2), butaprost (an EP2 receptor agonist) and dibutyryl cAMP abolished the inhibitory effect of indomethacin on interleukin-1alpha-induced vascular endothelial growth factor production. CONCLUSION We suggest that interleukin-1alpha induced vascular endothelial growth factor production via cyclooxygenase-2-derived prostaglandin E(2) in human periodontal ligament cells. The interleukin-1alpha/prostaglandin E(2) pathway might regulate vascular endothelial growth factor production in periodontal lesions.
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Affiliation(s)
- Y Bando
- Periodontology, Department of Hard Tissue Engineering, Tokyo Medical and Dental University, Tokyo, Japan.
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Muthu D, Midgley A, Petruska E, Sood A, Bando Y, Golberg D, Kruger M. High-pressure effects on boron nitride multi-walled nanotubes: An X-ray diffraction study. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.10.064] [Citation(s) in RCA: 5] [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: 11/30/2022]
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Terrones M, Charlier JC, Gloter A, Cruz-Silva E, Terrés E, Li YB, Vinu A, Zanolli Z, Dominguez JM, Terrones H, Bando Y, Golberg D. Experimental and theoretical studies suggesting the possibility of metallic boron nitride edges in porous nanourchins. Nano Lett 2008; 8:1026-1032. [PMID: 18333621 DOI: 10.1021/nl072713m] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We first describe the synthesis of novel and highly porous boron nitride (BN) nanospheres (100-400 nm o.d.) that exhibit a rough surface consisting of open BN nanocones and corrugated BN ribbons. The material was produced by reacting B2O3 with nanoporous carbon spheres under nitrogen at ca. 1750 degrees C. The BN nanospheres were characterized using scanning electron microscopy, high-resolution electron microscopy, and electron energy loss spectroscopy. The porous BN spheres show relatively large surface areas of ca. 290 m2/g and exhibit surprisingly stable field emission properties at low turn-on voltages (e.g., 1-1.3 V/microm). We attribute these outstanding electron emission properties to the presence of finite BN ribbons located at the surface of the nanospheres (exhibiting zigzag edges), which behave like metals as confirmed by first-principles calculations. In addition, our ab initio theoretical results indicate that the work function associated to these zigzag BN ribbons is 1.3 eV lower when compared with BN-bulk material.
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Affiliation(s)
- M Terrones
- Advanced Materials Department, IPICYT, Camino a la Presa San José 2055, Col. Lomas 4 sección, San Luis Potosí 78216, México.
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Lepró X, Vega-Cantú Y, Rodríguez-Macías FJ, Bando Y, Golberg D, Terrones M. Production and characterization of coaxial nanotube junctions and networks of CNx/CNT. Nano Lett 2007; 7:2220-6. [PMID: 17658866 DOI: 10.1021/nl0706502] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Novel coaxial structures consisting of nitrogen-doped carbon nanotube (MWNTs-CNx) cores with external concentric shells of pure carbon were produced by the pyrolysis of toluene over Fe-coated MWNTs-CNx. These materials were thoroughly characterized by SEM, HRTEM, X-ray diffraction, and TGA; a possible growth scenario for their formation is also proposed. In addition, these coaxial structures were able to form 2D and 3D covalent networks that mainly exhibited T-, Y-, and on-type morphologies. The two-step technique presented here could be further developed to fully control the growth of these new coaxial structures, study of individual junctions, and it could be used to create periodic nanotube networks, in which the heterocable structure could find applications in nanoelectronics.
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Affiliation(s)
- X Lepró
- Advanced Materials Department, IPICYT, Camino a la Presa San José 2055, Col. Lomas 4a sección, San Luis Potosí, 78216, México
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Terayama R, Bando Y, Murakami K, Kato K, Kishibe M, Yoshida S. Neuropsin promotes oligodendrocyte death, demyelination and axonal degeneration after spinal cord injury. Neuroscience 2007; 148:175-87. [PMID: 17629414 DOI: 10.1016/j.neuroscience.2007.05.037] [Citation(s) in RCA: 18] [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: 10/11/2006] [Revised: 04/23/2007] [Accepted: 05/16/2007] [Indexed: 01/08/2023]
Abstract
Previous studies indicated that the expression of neuropsin, a serine protease, is induced in mature oligodendrocytes after injury to the CNS. The pathophysiology of spinal cord injury (SCI) involves primary and secondary mechanisms, the latter contributing further to permanent losses of function. To explore the role of neuropsin after SCI, histochemical and behavioral analyses were performed in wild-type (WT) and neuropsin-deficient (neuropsin(-/-)) mice using a crush injury model, a well-characterized and consistently reproducible model of SCI. In situ hybridization revealed that neuropsin mRNA expression was induced in the spinal cord white matter from WT mice after crush SCI, peaking at day 4. Neuropsin(-/-) mice showed attenuated demyelination, oligodendrocyte death, and axonal damage after SCI. Although axonal degeneration in the corticospinal tract was obvious caudal to the lesion site in both strains of mice after SCI, the number of surviving nerve fibers caudal to the lesion was significantly larger in neuropsin(-/-) mice than WT mice. Behavioral analysis revealed that the recovery at days 10-42 was significantly improved in neuropsin(-/-) mice compared with WT mice in spite of the severe initial hindlimb impairments due to SCI in both strains. These observations suggest that neuropsin is involved in the secondary phase of the pathogenesis of SCI mediated by demyelination, oligodendrocyte death, and axonal degeneration.
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Affiliation(s)
- R Terayama
- Department of Functional Anatomy and Neuroscience, Asahikawa Medical College, 2-1-1-1 Midorigaoka-Higashi, Asahikawa 078-8510, Japan.
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Saha S, Gadagkar V, Maiti PK, Muthu DVS, Golberg D, Tang C, Zhi C, Bando Y, Sood AK. Irreversible pressure-induced transformation of boron nitride nanotubes. J Nanosci Nanotechnol 2007; 7:1810-4. [PMID: 17654945 DOI: 10.1166/jnn.2007.721] [Citation(s) in RCA: 2] [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: 05/16/2023]
Abstract
We have used Raman spectroscopy to study the behavior of multi-walled boron nitride nanotubes and hexagonal boron nitride crystals under high pressure. While boron nitride nanotubes show an irreversible transformation at about 12 GPa, hexagonal boron nitride exhibits a reversible phase transition at 13 GPa. We also present molecular dynamics simulations which suggest that the irreversibility of the pressure-induced transformation in boron nitride nanotubes is due to the polar nature of the bonds between boron and nitrogen.
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Affiliation(s)
- Surajit Saha
- Department of Physics, Indian Institute of Science, Bangalore 560012, India
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Matsui Y, Hasegawa T, Kubo T, Goto T, Yukata K, Endo K, Bando Y, Yasui N. Intrapatellar tendon lipoma with chondro-osseous differentiation: detection of HMGA2-LPP fusion gene transcript. J Clin Pathol 2006; 59:434-6. [PMID: 16567472 PMCID: PMC1860369 DOI: 10.1136/jcp.2005.026393] [Citation(s) in RCA: 10] [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: 11/04/2022]
Abstract
A 54 year old man developed an unusual lipoma in the patellar tendon, consisting of a fibro-adipose component and a chondro-osseous component. The fibro-adipose component contained mature adipocytes, lipoblasts, and fibroblasts; the chondro-osseous component showed typical endochondral bone formation. Molecular analysis showed that the identical HMGA2-LPP fusion transcript-characteristic of lipoma, parosteal lipoma, and pulmonary chondroid hamartoma-was detectable in the both components.
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Affiliation(s)
- Y Matsui
- Department of Orthopaedics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.
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Wang WL, Bai XD, Liu KH, Xu Z, Golberg D, Bando Y, Wang EG. Direct Synthesis of B−C−N Single-Walled Nanotubes by Bias-Assisted Hot Filament Chemical Vapor Deposition. J Am Chem Soc 2006; 128:6530-1. [PMID: 16704232 DOI: 10.1021/ja0606733] [Citation(s) in RCA: 152] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Direct synthesis of large-scale ternary boron carbonitride single-walled nanotubes (BCN-SWNTs) via a bias-assisted HFCVD process was presented. The BCN-SWNTs were grown over the powdery Fe-Mo/MgO catalyst by using CH4, B2H6, and ethylenediamine vapor as the reactant gases. As high as 16 atom % nitrogen can be incorporated within the nanotube shells, with the boron content in the range of 2-4 atom %. The ternary covalent bonding nature of the BCN-SWNTs was well characterized, and the B, C, and N elemental maps were clearly imaged by energy-filtered transmission electron microscopy.
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Affiliation(s)
- W L Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
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Saha S, Muthu D, Golberg D, Tang C, Zhi C, Bando Y, Sood A. Comparative high pressure Raman study of boron nitride nanotubes and hexagonal boron nitride. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.01.062] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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