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Nakano Y, Matoba T, Yamamoto M, Katsuki S, Koga Y, Mukai Y, Inoue S, Suematsu N, Higo T, Takemoto M, Miyata K, Usui M, Kadokami T, Tashiro H, Morishige K, Hironaga K, Tsutsui H. Temporal Trends in Antithrombotic Therapy for Patients With Atrial Fibrillation Undergoing Percutaneous Coronary Intervention From 2014 to 2022 in Japan. Circ Rep 2023; 5:282-288. [PMID: 37435100 PMCID: PMC10329913 DOI: 10.1253/circrep.cr-23-0047] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 05/15/2023] [Indexed: 07/13/2023] Open
Abstract
Background: Recent revisions of clinical guidelines by the Japanese Circulation Society, American Heart Association/American College of Cardiology, and European Society of Cardiology updated the management of antithrombotic strategies for patients with atrial fibrillation (AF) undergoing percutaneous coronary intervention (PCI). However, the extent to which these guidelines have been implemented in real-world daily clinical practice is unclear. Methods and Results: We conducted surveys on the status of antithrombotic therapy for patients with AF undergoing PCI every 2 years from 2014 to 2022 in 14 cardiovascular centers in Japan. The primary use of drug-eluting stents increased from 10% in 2014 to 95-100% in 2018, and the use of direct oral anticoagulants increased from 15% in 2014 to 100% in 2018, in accordance with the revised practice guidelines. In patients with acute coronary syndrome, the duration of triple therapy within 1 month was approximately 10% until 2018, and increased to >70% from 2020. In patients with chronic coronary syndrome, the duration of triple therapy within 1 month was approximately 10% until 2016, and >75% from 2018. Since 2020, the most common timing of discontinuation of dual antiplatelet therapy to transition to anticoagulation monotherapy during the chronic phase of PCI has been 1 year after PCI. Conclusions: Japanese interventional cardiologists have updated their treatment strategies for patients with AF undergoing PCI according to revisions of clinical practice guidelines.
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Affiliation(s)
- Yasuhiro Nakano
- Department of Cardiovascular Medicine, Kyushu University Hospital Fukuoka Japan
| | - Tetsuya Matoba
- Department of Cardiovascular Medicine, Kyushu University Hospital Fukuoka Japan
| | - Mitsutaka Yamamoto
- Department of Cardiovascular Medicine, Harasanshin Hospital Fukuoka Japan
| | - Shunsuke Katsuki
- Department of Cardiovascular Medicine, Kyushu University Hospital Fukuoka Japan
| | - Yasuaki Koga
- Department of Cardiovascular Medicine, Oita Prefectural Hospital Oita Japan
| | - Yasushi Mukai
- Department of Cardiovascular Medicine, Japanese Red Cross Fukuoka Hospital Fukuoka Japan
| | - Shujiro Inoue
- Department of Cardiovascular Medicine, Aso Iizuka Hospital Iizuka Japan
| | - Nobuhiro Suematsu
- Department of Cardiovascular Medicine, Saiseikai Fukuoka General Hospital Fukuoka Japan
| | - Taiki Higo
- Department of Cardiovascular Medicine, National Hospital Organization Kyushu Medical Centre Fukuoka Japan
| | - Masao Takemoto
- Cardiovascular Center, Steel Memorial Yawata Hospital Kitakyushu Japan
| | - Kenji Miyata
- Department of Cardiovascular Medicine, Japan Community Health Care Organization, Kyushu Hospital Kitakyushu Japan
| | - Makoto Usui
- Department of Cardiovascular Medicine, Hamanomachi Hospital Fukuoka Japan
| | - Toshiaki Kadokami
- Department of Cardiovascular Medicine, Saiseikai Futsukaichi Hospital Futsukaichi Japan
| | - Hideki Tashiro
- Department of Cardiology, St. Mary's Hospital Kurume Japan
| | - Kunio Morishige
- Department of Cardiovascular Medicine, Matsuyama Red Cross Hospital Matsuyama Japan
| | - Kiyoshi Hironaga
- Department of Cardiovascular Medicine, Fukuoka City Hospital Fukuoka Japan
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Kyushu University Hospital Fukuoka Japan
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences Fukuoka Japan
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Hori D, Kobayashi R, Nakazawa A, Iwafuchi H, Klapper W, Osumi T, Fujita N, Mitsui T, Koga Y, Mori T, Fukano R, Ohki K, Kamei M, Mori T, Tanaka M, Tsuchimochi T, Moriya K, Tao K, Kada A, Sekimizu M. NON-GERMINAL CENTER B-CELL SUBTYPE OF PEDIATRIC DISFFUSE LARGE B-CELL LYMPHOMA IN JAPAN: A MULTI-CASE ANALYSIS. Leuk Res 2022. [DOI: 10.1016/s0145-2126(22)00195-3] [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: 11/07/2022]
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3
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Ishii A, Nohara S, Yamamoto F, Tsuji H, Yatsuga S, Koga Y, Tamaoka A. P.53Potentially confounding variables of mitochondria biomarker GDF-15. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.082] [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: 11/28/2022]
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4
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Affiliation(s)
- Kenji Sadamatsu
- Department of Cardiology, Saga-ken Medical Centre Koseikan, Saga, Japan.
- Department of Cardiology, St Mary's Hospital, 422 Tsubukuhon-machi, Kurume, Fukuoka, Japan.
| | - Yasuaki Koga
- Department of Cardiology, Saga-ken Medical Centre Koseikan, Saga, Japan
| | - Hideki Tashiro
- Department of Cardiology, St Mary's Hospital, 422 Tsubukuhon-machi, Kurume, Fukuoka, Japan
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Sakamoto T, Masunaga T, Kiritani H, Kizaki Y, Koga Y, Kamiunten H, Muramatsu K. A case of Adriamycin Cardiomyopathy with Stress Induced Worsening of Mitral Regurgitation -Possible Underlying Mechanism Based on the Circulatory Equilibrium-. J Card Fail 2017. [DOI: 10.1016/j.cardfail.2017.08.235] [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: 10/18/2022]
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Ishii A, Ishii A, Nohara S, Yanagiha K, Moriyama T, Tozaka N, Miyake Z, Okune S, Tsuji H, Tomidokoro Y, Nakamagoe K, Ishii K, Watanabe M, Tamaoka A, Yatsuga S, Koga Y. GDF-15 expression in multiple sclerosis and limbic encephalitis. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3523] [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: 10/18/2022]
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7
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Ishii A, Yatsuga S, Koga Y, Tamaoka A. GDF-15 expression in mitochondrial and other neurological diseases. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.102] [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: 10/18/2022]
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8
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Yoshimi T, Koga Y, Nakamura A, Fujishita A, Kohara H, Moriuchi E, Yoshimi K, Tsai CY, Yoshida N. Mechanism of motor coordination of masseter and temporalis muscles for increased masticatory efficiency in mice. J Oral Rehabil 2017; 44:363-374. [PMID: 28181679 DOI: 10.1111/joor.12491] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2017] [Indexed: 11/28/2022]
Abstract
The demand for the use of mice as animal models for elucidating the pathophysiologies and pathogeneses of oral motor disorders has been increasing in recent years, as more and more kinds of genetically modified mice that express functional disorders of the stomatognathic system become available. However, the fundamental characteristics of mouse jaw movements during mastication have yet to be fully elucidated. The purpose of this study was to investigate the roles of the masseter and temporalis muscles, and the mechanisms of motor coordination of these muscles for increasing masticatory efficiency in the closing phase in mice. Twenty-two male Jcl:ICR mice were divided into control (n = 8), masseter-hypofunction (n = 7) and temporalis-hypofunction groups (n = 7). Botulinum neurotoxin type A (BoNT⁄A) was used to induce muscle hypofunction. The masticatory movement path in the horizontal direction during the occlusal phase became unstable after BoNT⁄A injection into the masseter muscle. BoNT⁄A injection into the temporalis muscle decreased antero-posterior excursion of the late-closing phase corresponding to the power phase of the chewing cycle. These results suggest that the masseter plays an important role in stabilizing the grinding path, where the food bolus is ground by sliding the posterior teeth from back to front during the occlusal phase. The temporalis plays a major role in retracting the mandible more posteriorly in the early phase of closing, extending the grinding path. Masticatory efficiency is thus increased based on the coordination of activities by the masseter and temporalis muscles.
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Affiliation(s)
- T Yoshimi
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Y Koga
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - A Nakamura
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - A Fujishita
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - H Kohara
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - E Moriuchi
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - K Yoshimi
- Yoshimi Skin Clinic, Nagasaki, Japan
| | - C Y Tsai
- Division of Orthodontics, Department of Dentistry, Taipei Medical University Hospital, Taipei, Taiwan
| | - N Yoshida
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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Yamashita Y, Takahashi M, Koga Y, Saito R, Nanakawa S, Hatanaka Y, Sato N, Nakashima K, Urata J, Yoshizumi K, Ito K, Sumi S. Prognostic Factors in Liver Metastases after Transcatheter Arterial Embolization or Arterial Infusion. Acta Radiol 2016. [DOI: 10.1177/028418519003100308] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
From January 1986 to December 1988, 85 patients (55 men and 30 women, mean age 59 years) with metastatic liver tumors were treated with hepatic artery embolization (TAE) or infusion (HAI). Sixty-eight patients with successful catheterization were treated with TAE using iodized oil (Lipiodol) mixed with anticancer agent (ACA). In 12 of 68 patients with hypervascular tumors gelatin sponge was added. Patients with unsuccessful catheterization were treated with hepatic artery infusion of ACA. Forty-three patients received oral chemotherapy following TAE or HAI. Overall, the 6-month, and 1- and 2-year survival rates were 69.5, 31.8 and 4.1 per cent, respectively (mean 233 days). A univariate analysis of prognostic factors showed that number of metastases, stage, treatment times and oral chemotherapy were all significant factors (p<0.05). Ascites, jaundice, percentage of hepatic replacement and treatment protocol also had some influence (p<0.1). Sex, age, primary site, elevation of tumor markers, other metastatic lesions, portal vein involvement and difference in anticancer agent had no prognostic significance. A multivariate analysis using Cox's proportional hazard model revealed that the number of treatments had the most important prognostic significance, followed by oral chemotherapy, stage and percentage of hepatic replacement.
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10
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Koga Y, Takahashi M, Kojima A, Takaki Y, Tomiguchi S, Hirota Y, Kugiyama K, Yasue H, Hayasaki K. Decreased Perfusion in Myocardial Region of Normal Donor Artery Secondary to Collateral Development. Acta Radiol 2016. [DOI: 10.1177/028418519203300103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Thirty-one patients suffering from single vessel exertional angina with collaterals (Group A) were evaluated by stress 201T1 myocardial emission CT (T1-SPECT) with 16 controls of severely stenotic single vessel exertional angina without collaterals (Group B). Group A included 21 patients (68%) who showed an extensive perfusion defect in double artery myocardial regions, including the normal donor artery myocardial region (DMR). However, there were no such cases in Group B, giving a significant difference between these 2 groups (p < 0.001). Four patients in Group A, having a perfusion defect both in DMR and in the collateral dependent myocardial region (CMR) underwent a successful percutaneous transluminal coronary angioplasty (PTCA) with disappearance of collaterals. T1-SPECT findings after PTCA showed no perfusion defect either in CMR or in DMR. This has been explained on the basis that the coronary collaterals stole blood and produced perfusion defect in DMR.
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11
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Umemoto S, Nakano Y, Koga Y, Mine D, Yoshida K, Sadamatsu K. TCTAP C-119 Recurrent Thrombosis with Prasugrel. J Am Coll Cardiol 2016. [DOI: 10.1016/j.jacc.2016.03.326] [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: 11/26/2022]
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12
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Okahara A, Sadamatsu K, Matsuura T, Koga Y, Mine D, Yoshida K. Coronary Artery Disease Screening With Carotid Ultrasound Examination by a Primary Care Physician. Cardiol Res 2016; 7:9-16. [PMID: 28197263 PMCID: PMC5295529 DOI: 10.14740/cr456w] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2016] [Indexed: 01/18/2023] Open
Abstract
Background In this study, we investigated the feasibility of primary care physicians using carotid ultrasound to perform coronary artery disease screening in asymptomatic patients with multiple coronary risk factors. Methods We retrospectively collected the data of 135 consecutive asymptomatic patients (mean age: 68.5 ± 8.4 years; male, 75%) who were referred to our institution due to abnormal findings on a carotid ultrasound performed by a primary care physician and who underwent coronary computed tomography angiography. Results The mean number of risk factors was 4.1 ± 1.2 and the mean intima-media thickness was 2.00 ± 0.63 mm. Mild (≤ 50%), moderate (51-75%), and severe (> 76%) coronary stenosis was observed in 54 (40%), 27 (20%), and 25 patients (19%), respectively, while no plaque was found in 24 patients (18%), and five patients (4%) could not be evaluated due to calcification. Consequently, coronary angiography was performed in 56 (41%) patients and coronary intervention was required in 31 patients (23%). A multivariate logistic regression analysis demonstrated that the ratio of low-density lipoprotein cholesterol levels to high-density lipoprotein cholesterol levels, the use of calcium channel blockers and the value of the diastolic blood pressure were related to > 50% coronary stenosis. Conclusions The use of carotid ultrasound in the coronary artery disease screening by primary care physicians resulted in a high prevalence of coronary artery disease and high probabilities of coronary angiography and revascularization, and thus it is considered to be a useful and feasible strategy for the screening of asymptomatic patients.
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Affiliation(s)
- Arihide Okahara
- Department of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Kenji Sadamatsu
- Department of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Taku Matsuura
- Department of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Yasuaki Koga
- Department of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Daigo Mine
- Department of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Keiki Yoshida
- Department of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
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13
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Edama M, Onishi H, Kubo M, Takabayashi T, Yokoyama E, Inai T, Watanabe H, Nashimoto S, Koga Y, Kageyama I. Gender differences of muscle and crural fascia origins in relation to the occurrence of medial tibial stress syndrome. Scand J Med Sci Sports 2015; 27:203-208. [PMID: 26662224 DOI: 10.1111/sms.12639] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/15/2015] [Indexed: 11/27/2022]
Abstract
Although women reportedly have a higher prevalence of medial tibial stress syndrome (MTSS) than men, the possible role of gender-based anatomical differences has not been investigated. The aim of the present study was to investigate the presence of gender-based differences in the range of muscle attachments along the entire medial tibia, the proportion of muscle attachment at the middle and distal thirds of the medial margin of the tibia, the structure of the crural fascia, and chiasm position. The specimens were 100 legs of 55 Japanese cadavers. Statistical analysis was carried out using a chi-square test to compare anatomical features between the sexes. The flexor digitorum longus (FDL) had a higher proportion of attachment to the middle and distal thirds of the medial margin of the tibia than the soleus (SOL; P < 0.001). The proportion of the SOL attachment to the middle and distal thirds of the medial margin of the tibia was 33.3% in men and 72.5% in women (P < 0.001). The soleal aponeurosis was not observed in any specimen. In all specimens the FDL formed the top layer of both chiasms. These results suggest that the higher prevalence of MTSS reported among women may be the result of gender-based anatomical differences.
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Affiliation(s)
- M Edama
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan.,Department of Anatomy, School of Life Dentistry at Niigata, Nippon Dental University, Niigata, Japan
| | - H Onishi
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - M Kubo
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - T Takabayashi
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - E Yokoyama
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
| | - T Inai
- Department of Rehabilitation, Oguma Orthopedics Clinic, Niigata, Japan
| | - H Watanabe
- Department of Rehabilitation, Sanjo General Hospital, Niigata, Japan
| | - S Nashimoto
- Department of Rehabilitation, Niigata Medical Center, Niigata, Japan
| | - Y Koga
- Department of Orthopaedic Surgery, Hokuetsu Hospital, Niigata, Japan
| | - I Kageyama
- Department of Anatomy, School of Life Dentistry at Niigata, Nippon Dental University, Niigata, Japan
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Sadamatsu K, Okahara A, Nakano Y, Mine D, Koga Y. Balloon crushing of a protruding everolimus-eluting stent for isolated coronary stenosis at the side branch ostium. Int J Cardiol 2015; 199:261-3. [PMID: 26226332 DOI: 10.1016/j.ijcard.2015.07.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 07/18/2015] [Indexed: 10/23/2022]
Affiliation(s)
- Kenji Sadamatsu
- Department of Cardiology, Saga-ken Medical Centre Koseikan, Saga, Japan.
| | - Arihide Okahara
- Department of Cardiology, Saga-ken Medical Centre Koseikan, Saga, Japan
| | - Yasuhiro Nakano
- Department of Cardiology, Saga-ken Medical Centre Koseikan, Saga, Japan
| | - Daigo Mine
- Department of Cardiology, Saga-ken Medical Centre Koseikan, Saga, Japan
| | - Yasuaki Koga
- Department of Cardiology, Saga-ken Medical Centre Koseikan, Saga, Japan
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Yamamoto T, Sakakibara R, Uchiyama T, Fuse M, Yanagisawa M, Koga Y, Kuwabara S. Receiver operating characteristic analysis of sphincter electromyography and post-void residuals for multiple system atrophy. Auton Neurosci 2015. [DOI: 10.1016/j.autneu.2015.07.015] [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: 11/24/2022]
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Kono M, Satomi T, Hasegawa O, Abukawa H, Koga Y, Matsuo A, Chikazu D. Evaluation of OK-432 (Picibanil) injection therapy for intraoral ranula. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Kai M, Fujiwara M, Miyoshi M, Nishiyama Y, Aoyama-Ishikawa M, Maeshige N, Inoue T, Uemura M, Yamashita H, Koga Y, Usami M. SUN-PP039: Up-Regulation of Hepatic Ppara and Pparγ in Endotoxemic Rats by Feeding Lard-Rich High-Fat Diet for 12 Weeks. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30190-4] [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: 11/28/2022]
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18
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Nishiyama Y, Miyoshi M, Kai M, Aoyama-Ishikawa M, Maeshige N, Inoue T, Uemura M, Yamashita H, Koga Y, Usami M. SUN-PP074: Skeletal Muscle Atrophy is Induced at Early Phase in Endotoxemic Rats and Oral Administration of Tributyrin Attenuates the Atrophy. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30225-9] [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: 11/28/2022]
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Sirilun S, Takahashi H, Boonyaritichaikij S, Chaiyasut C, Lertruangpanya P, Koga Y, Mikami K. Impact of maternal bifidobacteria and the mode of delivery on Bifidobacterium microbiota in infants. Benef Microbes 2015; 6:767-74. [PMID: 26322546 DOI: 10.3920/bm2014.0124] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The aim of this study is to examine the influence of maternal intestinal and vaginal bifidobacteria on the colonisation of bifidobacteria in the gut of infants. Faecal samples from 120 healthy pregnant mothers within 1 month of delivery and from their infants at 1 month of age and 98 vaginal swabs from the mothers at the time of delivery were collected at a maternity hospital in Chiang Mai, Thailand. The faecal and vaginal samples were assayed by real-time PCR assays to detect Bifidobacterium species and to estimate the bifidobacterial copy numbers. After adjusting for the numbers of each Bifidobacterium species, delivery mode, and antibiotic use in infants by the age of 1 month, total counts of bifidobacteria in the mothers' faeces were associated with increased copy numbers of bifidobacteria in the faeces of breastfed infants. A caesarean section was also significantly associated with a decrease in the copy numbers of bifidobacteria in the faeces of infants. No significant correlation was found between the bifidobacterial copies of the vaginal swabs and those of the infants' faeces. The intestinal bifidobacterial status of exclusively breastfed infants was significantly positive affected by vaginal delivery and high bifidobacterial copy numbers in their mothers' gut.
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Affiliation(s)
- S Sirilun
- 1 Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Suthep road, Suthep, Muang, 50200 Chiang Mai, Thailand
| | - H Takahashi
- 2 Laboratory for Infectious Diseases, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan
| | - S Boonyaritichaikij
- 3 Department of Family Medicine, Faculty of Medicine, Chiang Mai University, Suthep road, Suthep, Muang, 50200 Chiang Mai, Thailand
| | - C Chaiyasut
- 1 Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Suthep road, Suthep, Muang, 50200 Chiang Mai, Thailand
| | - P Lertruangpanya
- 4 Chiang Mai Health Promotion Hospital, Health Center Region 10th, Prachasamphan road, Changklan, Muang, 50100 Chiang Mai, Thailand
| | - Y Koga
- 2 Laboratory for Infectious Diseases, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan
| | - K Mikami
- 2 Laboratory for Infectious Diseases, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.,5 Department of Psychiatry, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan
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Nakano Y, Okahara A, Mine D, Koga Y, Yoshida K, Sadamatsu K. TCTAP C-054 Balloon Crush the Protruding Everolimus-Eluting Stent for Isolated Coronary Stenosis at Side Branch Ostium. J Am Coll Cardiol 2015. [DOI: 10.1016/j.jacc.2015.03.327] [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: 11/26/2022]
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21
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Fujishita A, Koga Y, Utsumi D, Nakamura A, Yoshimi T, Yoshida N. Effects of feeding a soft diet and subsequent rehabilitation on the development of the masticatory function. J Oral Rehabil 2014; 42:266-74. [DOI: 10.1111/joor.12248] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2014] [Indexed: 11/30/2022]
Affiliation(s)
- A. Fujishita
- Department of Orthodontics and Dentofacial Orthopedics; Graduate school of Biomedical Sciences; Nagasaki University; Nagasaki Japan
| | - Y. Koga
- Department of Orthodontics and Dentofacial Orthopedics; Graduate school of Biomedical Sciences; Nagasaki University; Nagasaki Japan
| | - D. Utsumi
- Department of Orthodontics and Dentofacial Orthopedics; Graduate school of Biomedical Sciences; Nagasaki University; Nagasaki Japan
| | - A. Nakamura
- Department of Orthodontics and Dentofacial Orthopedics; Graduate school of Biomedical Sciences; Nagasaki University; Nagasaki Japan
| | - T. Yoshimi
- Department of Orthodontics and Dentofacial Orthopedics; Graduate school of Biomedical Sciences; Nagasaki University; Nagasaki Japan
| | - N. Yoshida
- Department of Orthodontics and Dentofacial Orthopedics; Graduate school of Biomedical Sciences; Nagasaki University; Nagasaki Japan
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Okahara A, Nagamoto Y, Umemoto S, Matsuura T, Ozaki K, Nakano Y, Takegami K, Mine D, Shirahama T, Koga Y, Yoshida K, Sadamatsu K, Hayashida K. Blackout during meals: A case report of swallow syncope due to sinus arrest. J Cardiol Cases 2014; 10:91-93. [PMID: 30546515 DOI: 10.1016/j.jccase.2014.05.006] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 04/10/2014] [Accepted: 05/12/2014] [Indexed: 11/17/2022] Open
Abstract
A 79-year-old male, with a history of percutaneous coronary intervention (PCI), was referred to our cardiovascular department for a detailed examination of blackout caused by sinus arrest only during meals. Ultrasound echocardiography showed normal cardiac contraction with no asynergy, irrespective of the remaining stenotic coronary lesion. An electrophysiological study revealed deteriorated atrioventricular nodal conduction at a Wenckebach point of 70 beats per minute. However, sinus node function was normal as demonstrated by a sinus node recovery time of 1369 ms. Coronary angiography showed triple-vessel disease including the remaining stenotic coronary lesion, and a PCI was performed on the right coronary artery. Nevertheless, sinus arrest during meals was unchanged. Swallow syncope was partially improved by dietary modification; however, pacemaker implantation (PMI) was performed eventually, and the patient became asymptomatic after PMI. <Learning objective: Swallow syncope is a rare cause of syncope that belongs to the neurally mediated reflex syncopal syndromes, which can induce a variety of bradyarrhythmias: sinus bradycardia, sinus arrest, sinoatrial block, atrioventricular block, or atrial and ventricular asystole. In this case, we demonstrated that dietary modification or pacemaker implantation improved swallow syncope due to sinus arrest.>.
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Affiliation(s)
- Arihide Okahara
- Division of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | | | - Shintaro Umemoto
- Division of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Taku Matsuura
- Division of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Koji Ozaki
- Division of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Yasuhiro Nakano
- Division of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Kaoru Takegami
- Division of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Daigo Mine
- Division of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | | | - Yasuaki Koga
- Division of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Keiki Yoshida
- Division of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Kenji Sadamatsu
- Division of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - Kiyoshi Hayashida
- Division of Cardiology, Saga-Ken Medical Centre Koseikan, Saga, Japan
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Mori S, Koga Y. AB0596 Glucocorticoid-Resistant Polymyalgia Rheumatica: Clinical Characterization and TOCILIZUMAB Therapy. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3434] [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: 11/03/2022]
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Cheng M, Angkawidjaja C, Koga Y, Kanaya S. Calcium-independent opening of lid1 of a family I.3 lipase by a single Asp to Arg mutation at the calcium-binding site. Protein Eng Des Sel 2014; 27:169-76. [DOI: 10.1093/protein/gzu009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sadamatsu K, Takegami K, Matsuura T, Okahara A, Shirahama T, Mine D, Koga Y, Nagamoto Y, Yoshida K. TCTAP A-204 Abdominal Adiposity Measured with Dual Bioelectrical Impedance Analysis of Hospitalized Patients in the Cardiology Ward. J Am Coll Cardiol 2014. [DOI: 10.1016/j.jacc.2014.02.595] [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: 11/16/2022]
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Koga Y, Ueyama J, Sekimizu M, Mitsui T, Mori T, Fukano R, Gunma K, Osumi T, Mori T, Kikuchi A, Sunami S, Kobayashi R. Pediatric Hodgkin's Lymphoma in Japan. Klin Padiatr 2014. [DOI: 10.1055/s-0034-1371132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Harada M, Kuwahara R, Yoshida H, Hashimoto O, Sakamoto M, Koga Y, Kano T, Sata M. Dextromethorphan for neuropathic pain with Churg-Strauss syndrome. Mod Rheumatol 2014; 11:80-2. [PMID: 24387027 DOI: 10.3109/s101650170050] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract A 48-year old man who had been treated with prednisolone, aminophylline, and pranlukast, a leukotriene-receptor antagonist, was diagnosed with Churg-Strauss syndrome based on the findings of asthma, eosinophilia, mononeuropathy, and extravascular eosinophils. Intractable neuropathic pain of the legs was successfully controlled with an N-methyl-d-aspartate receptor antagonist, dextromethorphan. We suggest that dextromethorphan receptor antagonists may be a useful treatment for the pain of neuropathy caused by vasculitis syndrome.
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Affiliation(s)
- M Harada
- Second Department of Medicine, Kurume University School of Medicine , 67 Asahi-machi, Kurume 830-0011 , Japan
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Nagamoto Y, Shiomi T, Matsuura T, Okahara A, Inoue K, Yamaguchi R, Takegami K, Mine D, Shirahama T, Koga Y, Yoshida K, Sadamatsu K, Hayashida K. Ventricular pacing inhibition by oversensing due to diaphragmatic myopotential during deep inspiration. J Cardiol Cases 2013; 8:e81-e84. [PMID: 30546749 DOI: 10.1016/j.jccase.2013.04.008] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 04/17/2013] [Accepted: 04/25/2013] [Indexed: 10/26/2022] Open
Abstract
An 80-year-old man, who had dilated cardiomyopathy with right ventricular (RV) dilatation, underwent implantable cardioverter defibrillator (ICD) implantation for advanced atrioventricular block and primary prevention of sudden cardiac death. Tined and screw-in leads were placed on the right atrial appendage and RV apex, respectively. Ventricular pacing inhibition was detected after surgery due to oversensing by diaphragmatic myopotential occurring only during deep inspiration. We performed re-surgery and switched the screw-in lead for a tined lead. The diaphragmatic myopotential decreased, thereby improving oversensing by diaphragmatic myopotential and ventricular pacing inhibition. It might be beneficial to use a tined lead when placing the ventricular lead at the RV apex for implantation of a pacemaker or ICD if oversensing of diaphragmatic myopotential is observed using a screw-in lead. <Learning objective: Oversensing due to diaphragmatic myopotential is rarely observed. However if it occurs, it becomes a critical problem, which causes pacemaker inhibition or inappropriate ICD shock. However, the method of preventing this problem is unknown. In this case, we demonstrated that a tined-lead may be useful for the prevention of oversensing by diaphragmatic myopotential.>.
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Affiliation(s)
- Yasutsugu Nagamoto
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
| | - Tetsuya Shiomi
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
| | - Taku Matsuura
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
| | - Arihide Okahara
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
| | - Kota Inoue
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
| | - Rika Yamaguchi
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
| | - Kaoru Takegami
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
| | - Daigo Mine
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
| | - Takaharu Shirahama
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
| | - Yasuaki Koga
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
| | - Keiki Yoshida
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
| | - Kenji Sadamatsu
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
| | - Kiyoshi Hayashida
- Division of Cardiology, Saga Prefectural Hospital Koseikan, 1-12-9 Mizugae, Saga 840-8571, Japan
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Nishino R, Mikami K, Takahashi H, Tomonaga S, Furuse M, Hiramoto T, Aiba Y, Koga Y, Sudo N. Commensal microbiota modulate murine behaviors in a strictly contamination-free environment confirmed by culture-based methods. Neurogastroenterol Motil 2013; 25:521-8. [PMID: 23480302 DOI: 10.1111/nmo.12110] [Citation(s) in RCA: 176] [Impact Index Per Article: 16.0] [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] [Received: 06/25/2012] [Accepted: 02/05/2013] [Indexed: 02/08/2023]
Abstract
BACKGROUND There is increasing evidence suggesting the existence of an interaction between commensal microbiota, the gut and the brain. The aim of this study was to examine the influence of commensal microbiota on the host behaviors in a contamination-free environment, which was verified by culture-based methods. METHODS Open-field and marble-burying tests were used to analyze anxiety-like behaviors and locomotor activity in gnotobiotic BALB/c mice with a common genetic background in a sterile isolator. The monoamine levels in several regions of the brain were measured in germfree (GF) mice and commensal fecal microbiota-associated mice (EX-GF). KEY RESULTS A 24-h exposure to the environment outside the sterile isolators rendered GF mice less anxious than those not contaminated, while there was no change in the locomotion. EX-GF mice, the gnotobiotic mice with normal specific pathogen-free microbiota, were less anxious and active than GF mice using open-field and marble-burying tests. The norepinephrine, dopamine, and serotonin turnover rates were higher in the EX-GF mice than in the GF mice in most regions of the brain, suggesting that monoaminergic neurotransmission might increase in the EX-GF mice comparing the GF mice. Monoassociation with Brautia coccoides reduced the anxiety level, but it did not affect the locomotor activity. In contrast, colonization with Bifidobacterium infantis decreased the locomotor activity, while having little effect on the anxiety level. CONCLUSIONS & INFERENCES These results strongly support the current view that gut microorganisms modulate brain development and behavior.
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Affiliation(s)
- R Nishino
- Laboratory for Infectious Diseases, Isehara, Kanagawa, Japan.
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Sadamatsu K, Yoshida K, Yoshidomi Y, Koga Y, Amari K, Tokunou T. Comparison of pre-dilation with a non-compliant balloon versus a dual wire scoring balloon for coronary stenting. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/wjcd.2013.36061] [Citation(s) in RCA: 6] [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: 11/20/2022]
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Kamide Y, Utsugi M, Dobashi K, Ono A, Ishizuka T, Hisada T, Koga Y, Uno K, Hamuro J, Mori M. Intracellular glutathione redox status in human dendritic cells regulates IL-27 production and T-cell polarization. Allergy 2011; 66:1183-92. [PMID: 21545428 DOI: 10.1111/j.1398-9995.2011.02611.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [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: 02/04/2023]
Abstract
BACKGROUND Glutathione redox status, changes in intracellular reduced (GSH) or oxidized (GSSG) glutathione, plays a significant role in various aspects of cellular function. In this study, we examined whether intracellular glutathione redox status in human dendritic cells (DCs) regulates the polarization of Th1/Th2 balance. METHODS Human monocyte-derived DCs (MD-DCs) treated with glutathione reduced form ethyl ester (GSH-OEt) or L-buthionine-(S,R)-sulfoximine (BSO) were stimulated by lipopolysaccharide (LPS), and the levels of polarization cytokines were measured. Next, DCs matured by LPS or thymic stromal lymphopoietin (TSLP) were cocultured with allogeneic CD4(+) naive T cells and Th1/Th2 balance was evaluated by cytokine production from the primed T cells. RESULTS Monocyte-derived DCs exposed to GSH-OEt and BSO had increased and decreased intracellular GSH contents, respectively. Lipopolysaccharide-induced interleukin (IL)-27 production was enhanced by GSH-OEt and suppressed by BSO, but neither GSH-OEt nor BSO affected the expression of HLA-DR, CD80, CD83, or CD86. Mature GSH-OEt-treated MD-DCs enhanced interferon (IFN)-γ production from CD4(+) T cells compared with nontreated MD-DCs, and small interfering RNA (siRNA) against IL-27 suppressed the effect of GSH-OEt on IFN-γ production. Additionally, although human myeloid DCs activated by TSLP (TSLP-DCs) prime naïve CD4(+) T cells to differentiate into Th2 cells, treatment of TSLP-DCs with GSH-OEt reduced IL-13 production and enhanced IFN-γ production by CD4(+) T cells. Interleukin-27 siRNA attenuated the inhibitory effect of GSH-OEt on Th2 polarization. CONCLUSION Our results reveal that Th1 and Th2 responses are controlled by intracellular glutathione redox status in DCs through IL-27 production.
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Affiliation(s)
- Y Kamide
- Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, 3-39-15 Showa-machi, Maebashi, Gunma, Japan
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Yamagata Y, Koga Y, Hashikawa C, Inazato M, Chirifu M, Nakamura T, Ikemizu S, Nakabeppu Y. pH-dependent substrate recognition in human MTH1. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311079840] [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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Kito S, Hasegawa T, Koga Y. P14.16 Low-frequency right prefrontal transcranial magnetic stimulation in treatment-resistant depression and changes in regional cerebral blood flow. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60444-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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34
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Hasegawa T, Kito S, Nakajima T, Yamadera H, Koga Y. P19.9 Changes in sleep architecture after repetitive transcranial magnetic stimulation in treatment-resistant depression. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60510-5] [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: 10/17/2022]
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Kanaya E, Sakabe T, Nguyen NT, Koikeda S, Koga Y, Takano K, Kanaya S. Cloning of the RNase H genes from a metagenomic DNA library: identification of a new type 1 RNase H without a typical active-site motif. J Appl Microbiol 2011; 109:974-83. [PMID: 20408915 DOI: 10.1111/j.1365-2672.2010.04724.x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIMS The study aimed to combine a metagenomics approach with complementary genetics to identify novel bacterial genes with orthologous functions, with the identification of novel RNase H genes as a test case. METHODS AND RESULTS A metagenomic DNA library was prepared from leaf-and-branch compost and used to screen for the RNase H genes by their abilities to complement the temperature-sensitive growth phenotype of the rnhA mutant Escherichia coli strain MIC3001. Determination of the nucleotide sequences of the cloned DNA fragments allowed us to identify 12 different genes encoding type 1 RNases H. Eleven of them encode novel RNases H, which show 40-72% amino acid sequence identities to those available from database. One of them lacks a typical DEDD/E active-site motif, which is almost fully conserved in various RNases H. CONCLUSIONS Functional screening of environmental DNA without cultivation of microbes is a useful procedure to isolate novel RNase H genes. SIGNIFICANCE AND IMPACT OF THE STUDY One of the identified RNase H genes had no sequence similarity to a previously assumed conserved motif, suggesting multiple catalytic mechanisms exist. This test case illustrates that metagenomics combined with complementary genetics can identify novel genes that are orthologous without sequence similarity to those from cultivated bacteria.
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Affiliation(s)
- E Kanaya
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, Osaka, Japan.
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Kuwahara K, Angkawidjaja C, Koga Y, Takano K, Kanaya S. Importance of an extreme C-terminal motif of a family I.3 lipase for stability. Protein Eng Des Sel 2011; 24:411-8. [DOI: 10.1093/protein/gzq122] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [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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Hasegawa T, Kito S, Nakajima T, Yamadera H, Koga Y. P27-2 Sleep architecture changes after rTMS in treatment resistant depression. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)61076-0] [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: 10/18/2022]
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Koga Y. S30-1 Overview: Further growth and development of electroencephalography. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60192-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Nagano T, Yasunaga M, Goto K, Kenmotsu H, Koga Y, Kuroda J, Nishimura Y, Sugino T, Nishiwaki Y, Matsumura Y. Synergistic antitumor activity of the SN-38-incorporating polymeric micelles NK012 with S-1. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e13588] [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: 11/20/2022] Open
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Sadamatsu K, Honda N, Yoshidomi Y, Koga Y, Oba K, Tokunou T, Tanaka H, Yoshida K. AS-176: Comparison of Predilation with a Noncompliant Balloon Versus a New Scoring Balloon for Coronary Stenting. Am J Cardiol 2010. [DOI: 10.1016/j.amjcard.2010.01.223] [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: 11/24/2022]
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Sadamatsu K, Tsutsumi Y, Honda N, Yoshidomi Y, Koga Y, Oba K, Tokunou T, Tanaka H, Yoshida K. AS-144: Efficacy of Stent Placement at an Ostial Left Anterior Descending Artery Stenosis with a Deep Caudal Projection. Am J Cardiol 2010. [DOI: 10.1016/j.amjcard.2010.01.189] [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: 10/19/2022]
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Koga Y. [Diagnosis and treatment of mitochondrial myopathy--update review]. No To Hattatsu 2010; 42:124-129. [PMID: 23858596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Koga Y, Katayama K, Povalko N, Nakamura H, Ohashi Y. 38 Investigator mediated Phase III open labeled l-arginine clinical trial to cure and prevent the stroke-like episodes in MELAS: Study design and outcome. Mitochondrion 2010. [DOI: 10.1016/j.mito.2009.12.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Foophow T, Tanaka S, Koga Y, Takano K, Kanaya S. Subtilisin-like serine protease from hyperthermophilic archaeon Thermococcus kodakaraensis with N- and C-terminal propeptides. Protein Eng Des Sel 2010; 23:347-55. [PMID: 20100702 DOI: 10.1093/protein/gzp092] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The genome of the hyperthermophilic archaeon Thermococcus kodakaraensis contains three genes encoding subtilisin-like serine proteases, Tk-1689, Tk-0076 and Tk-subtilisin. Of them, the structure and function of Tk-subtilisin have been extensively studied. To examine whether Tk-1689 is matured to an active form and functions as a hyperthermostable protease as is Tk-subtilisin, the gene encoding the Tk-1689 derivative without a putative N-terminal signal sequence, termed Pro-Tk-SP, was overexpressed in Escherichia coli. Pro-Tk-SP is composed of 640 amino acid residues and its molecular mass is 68.6 kDa. The recombinant protein was purified, however, as an active 44 kDa protease, termed Tk-SP, which lacks the N-terminal 113 and C-terminal 101 amino acid residues. This result suggests that Pro-Tk-SP consists of an N-terminal propeptide (Ala1-Ala113), a mature domain (Tk-SP, Val114-Val539) and a C-terminal propeptide (Asp540-Gly640). Like Tk-subtilisin, Tk-SP showed a broad substrate specificity and was highly thermostable. Its optimum temperature for activity was approximately 100 degrees C and its half-life at 100 degrees C was 100 min. It was fully resistant to treatment with 5% SDS, 8 M urea or 10% Triton X-100. However, unlike Tk-subtilisin and bacterial subtilisins, Tk-SP requires neither Ca2+ nor propeptide for folding. As a result, Tk-SP was fully active even in the presence of 10 mM EDTA. Thus, Tk-SP has a great advantage over other proteases in high resistance to heat, denaturants, detergents and chelating agents and therefore has great potential for application in biotechnology fields.
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Affiliation(s)
- T Foophow
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Shibata R, Kimura M, Takahashi H, Mikami K, Aiba Y, Takeda H, Koga Y. Clinical effects of kestose, a prebiotic oligosaccharide, on the treatment of atopic dermatitis in infants. Clin Exp Allergy 2009; 39:1397-403. [PMID: 19508323 DOI: 10.1111/j.1365-2222.2009.03295.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [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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Koga Y, Yatsuga S, Akita Y, Nishioka J, Katayama K, Povalko N, Matsuishi T. Natural course of melas in Japanese cohort study. J Neurol Sci 2009. [DOI: 10.1016/j.jns.2009.02.038] [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: 10/20/2022]
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Nagano T, Yasunaga M, Goto K, Koga Y, Kuroda J, Nishimura Y, Sugino T, Nishiwaki Y, Matsumura Y. Antitumor activity of NK012 combined with cisplatin against small-cell lung cancer and intestinal mucosal changes in tumor-bearing mouse after treatment. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e13522] [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
e13522 Background: The novel SN-38-incorporating polymeric micelles NK012 has been shown to have significant antitumor activity against several cancer mouse models compared with CPT-11. The phase I study demonstrated that patients treated with NK012 did not develop grade 3/4 diarrhea, one of the major adverse effects of CPT-11. The aim of this study is to investigate the advantages of NK012 combined with cisplatin (cis-dichlorodiammineplatinum (II): CDDP) over CPT-11/CDDP, one of the most active regimens against small-cell and non-small-cell lung cancers in the clinic, in mice bearing a small-cell lung cancer (SCLC) xenograft in terms of antitumor activity and toxicity, particularly intestinal toxicity. Methods: Cytotoxic effects were evaluated in human SCLC cell lines (H69, H82, vascular endothelial growth factor [VEGF]-secreting cells, SBC-3/VEGF and its mock transfectant SBC-3/Neo). In vivo antitumor effects were evaluated in SBC-3/Neo-and SBC-3/VEGF-bearing mice after NK012/CDDP or CPT-11/CDDP administration on days 0, 7, and 14. Drug distribution was analyzed by high-performance liquid chromatography or fluorescence microscopy, and the small intestine was pathologically examined. Results: The in vitro growth inhibitory effects of NK012 were 198- to 532-fold more potent than those of CPT-11. A significant difference in the relative tumor volume on day 30 was found between NK012/CDDP and CPT- 11/CDDP treatments (P=0.0058). Inflammatory changes in the small intestinal mucosa were rare in all NK012-treated mice, but were commonly observed in CPT-11-treated mice. Moreover, a large amount of CPT-11 was excreted into the feces and high CPT-11 concentration was detected in the small intestinal epithelium. On the other hand, a small amount of NK012 was found in the feces and NK012 was weakly and uniformly distributed in the mucosal interstitium. Conclusions: NK012/CDDP combination may be a promising candidate regimen against lung cancer without severe diarrhea toxicity, and therefore warrants further clinical evaluation. No significant financial relationships to disclose.
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Affiliation(s)
- T. Nagano
- National Cancer Center Hospital East, Kashiwa, Japan; Kobe University Graduate School of Medicine, Kobe, Japan; Fukushima Medical University School of Medicine, Fukushima, Japan
| | - M. Yasunaga
- National Cancer Center Hospital East, Kashiwa, Japan; Kobe University Graduate School of Medicine, Kobe, Japan; Fukushima Medical University School of Medicine, Fukushima, Japan
| | - K. Goto
- National Cancer Center Hospital East, Kashiwa, Japan; Kobe University Graduate School of Medicine, Kobe, Japan; Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Y. Koga
- National Cancer Center Hospital East, Kashiwa, Japan; Kobe University Graduate School of Medicine, Kobe, Japan; Fukushima Medical University School of Medicine, Fukushima, Japan
| | - J. Kuroda
- National Cancer Center Hospital East, Kashiwa, Japan; Kobe University Graduate School of Medicine, Kobe, Japan; Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Y. Nishimura
- National Cancer Center Hospital East, Kashiwa, Japan; Kobe University Graduate School of Medicine, Kobe, Japan; Fukushima Medical University School of Medicine, Fukushima, Japan
| | - T. Sugino
- National Cancer Center Hospital East, Kashiwa, Japan; Kobe University Graduate School of Medicine, Kobe, Japan; Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Y. Nishiwaki
- National Cancer Center Hospital East, Kashiwa, Japan; Kobe University Graduate School of Medicine, Kobe, Japan; Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Y. Matsumura
- National Cancer Center Hospital East, Kashiwa, Japan; Kobe University Graduate School of Medicine, Kobe, Japan; Fukushima Medical University School of Medicine, Fukushima, Japan
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Araki S, Hirooka Y, Kishi T, Ito K, Koga Y, Konno S, Yasukawa K, Utsumi H, Sunagawa K. Aldosterone and Salt Induces Hypertension Associated with Increased Oxidative Stress in the Brain of Apolipoprotein E Knockout Mice. FASEB J 2009. [DOI: 10.1096/fasebj.23.1_supplement.1015.9] [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]
Affiliation(s)
- Shuichiro Araki
- Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
| | - Yoshitaka Hirooka
- Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
| | - Takuya Kishi
- Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
| | - Koji Ito
- Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
| | - Yasuaki Koga
- Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
| | - Satomi Konno
- Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
| | - Keiji Yasukawa
- Bio‐Functional ScienceKyushu University Graduate School of Pharmaceutical SciencesFukuokaJapan
| | - Hideo Utsumi
- Bio‐Functional ScienceKyushu University Graduate School of Pharmaceutical SciencesFukuokaJapan
| | - Kenji Sunagawa
- Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
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49
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Koga Y, Hirooka Y, Araki S, Nozoe M, Kishi T, Sunagawa K. High Salt Intake Enhances Blood Pressure Increase during Development of Hypertension via Oxidative Stress in Rostral Ventrolateral Medulla of Spontaneously Hypertensive Rats. Hypertens Res 2008; 31:2075-83. [DOI: 10.1291/hypres.31.2075] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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50
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Kuwahara K, Angkawidjaja C, Matsumura H, Koga Y, Takano K, Kanaya S. Importance of the Ca2+-binding sites in the N-catalytic domain of a family I.3 lipase for activity and stability. Protein Eng Des Sel 2008; 21:737-44. [DOI: 10.1093/protein/gzn057] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [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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