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Varsi F, Ahmad S, Chakraborty M, Chandra A, Dugad SR, Goswami UD, Gupta SK, Hariharan B, Hayashi Y, Jagadeesan P, Jain A, Jain P, Kawakami S, Kojima H, Lipari P, Mahapatra S, Mohanty PK, Moharana R, Muraki Y, Nayak PK, Nonaka T, Oshima A, Pant BP, Pattanaik D, Paul S, Pradhan GS, Rameez M, Ramesh K, Reddy LV, Saha S, Sahoo R, Scaria R, Shibata S, Zuberi M. Evidence of a Hardening in the Cosmic Ray Proton Spectrum at around 166 TeV Observed by the GRAPES-3 Experiment. Phys Rev Lett 2024; 132:051002. [PMID: 38364164 DOI: 10.1103/physrevlett.132.051002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 10/16/2023] [Accepted: 01/04/2024] [Indexed: 02/18/2024]
Abstract
We present the measurement of the cosmic ray proton spectrum from 50 TeV to 1.3 PeV using 7.81×10^{6} extensive air shower events recorded by the ground-based GRAPES-3 experiment between 1 January 2014 and 26 October 2015 with a live time of 460 day. Our measurements provide an overlap with direct observations by satellite and balloon-based experiments. The electromagnetic and muon components in the shower were measured by a dense array of plastic scintillator detectors and a tracking muon telescope, respectively. The relative composition of the proton primary from the air shower data containing all primary particles was extracted using the multiplicity distribution of muons which is a sensitive observable for mass composition. The observed proton spectrum suggests a spectral hardening at ∼166 TeV and disfavors a single power law description of the spectrum up to the Knee energy (∼3 PeV).
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Affiliation(s)
- F Varsi
- Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - S Ahmad
- Aligarh Muslim University, Aligarh 202002, India
| | - M Chakraborty
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
| | - A Chandra
- Aligarh Muslim University, Aligarh 202002, India
| | - S R Dugad
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
| | - U D Goswami
- Dibrugarh University, Dibrugarh 786004, India
| | - S K Gupta
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
| | - B Hariharan
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
| | - Y Hayashi
- Graduate School of Science, Osaka Metropolitan University, Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
| | - P Jagadeesan
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
| | - A Jain
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
| | - P Jain
- Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - S Kawakami
- Graduate School of Science, Osaka Metropolitan University, Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
| | - H Kojima
- College of Engineering, Chubu University, Kasugai, Aichi 487-8501, Japan
| | - P Lipari
- INFN, Sezione Roma "Sapienza", Piazzale Aldo Moro 2, 00185 Roma, Italy
| | | | - P K Mohanty
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
| | - R Moharana
- Indian Institute of Technology Jodhpur, Jodhpur 342037, India
| | - Y Muraki
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya 464-8601, Japan
| | - P K Nayak
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
| | - T Nonaka
- Institute for Cosmic Ray Research, Tokyo University, Kashiwa, Chiba 277-8582, Japan
| | - A Oshima
- College of Engineering, Chubu University, Kasugai, Aichi 487-8501, Japan
| | - B P Pant
- Indian Institute of Technology Jodhpur, Jodhpur 342037, India
| | - D Pattanaik
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Utkal University, Bhubaneswar 751004, India
| | - S Paul
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
| | - G S Pradhan
- Indian Institute of Technology Indore, Indore 453552, India
| | - M Rameez
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
| | - K Ramesh
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
| | - L V Reddy
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
| | - S Saha
- Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - R Sahoo
- Indian Institute of Technology Indore, Indore 453552, India
| | - R Scaria
- Indian Institute of Technology Indore, Indore 453552, India
| | - S Shibata
- College of Engineering, Chubu University, Kasugai, Aichi 487-8501, Japan
| | - M Zuberi
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
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Kondo A, Umezawa H, Fukunaga Y, Oshima A, Higashino T, Ogawa R. Supermicrovascular anastomosis training using chicken wings and colored water. J Plast Reconstr Aesthet Surg 2023; 84:531-536. [PMID: 37421676 DOI: 10.1016/j.bjps.2023.06.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/30/2023] [Accepted: 06/09/2023] [Indexed: 07/10/2023]
Abstract
Plastic surgeons require experience in supermicroscopic vascular anastomosis. Herein, we report a simple, rapid, and cost-effective training method using chicken wings and colored water. The avian ventral metacarpal artery was selected for dissection and anastomosis to mimic supermicrosurgery. Over 14 weeks (one anastomosis per day), the ulnar artery in 100 chicken wings was exposed by dissection, cut proximally, and injected with blue food dye-colored water by an inexperienced surgeon. After ligating the artery branches, it was cut and subjected to end-to-end anastomosis. Next, colored water was injected into the ulnar artery to check for suture sufficiency. The vessel was re-dissected to inspect the lumen and sutures qualitatively. Of the 100 wings, the first and last 20 wings' ventral metacarpal artery dissection, anastomosis times, and leakage frequency were compared. Avian ventral metacarpal artery diameter was recorded, and the cumulative anastomosis time where individual anastomosis times started decreasing was determined. Leakage rates before and after this point were compared. The avian ventral metacarpal artery diameter was 0.7-0.8 mm. The last 20 wings had significantly shorter median dissection times (12:27 vs. 17:45 min), anastomosis times (9:02 vs. 12:29 min), and leakage rates (15% vs. 70%); more even stitching and parallel ligature points; and less vessel layer inversion than the first 20 wings. After a cumulative anastomosis time of 10 h 26 min, individual times sharply decreased, and the leakage rate decreased significantly (58.3% vs. 23.8%). The proposed method significantly improved supermicrosurgical anastomosis. Thus, we believe that this method will help surgeons improve their supermicrosurgical skills.
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Affiliation(s)
- A Kondo
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Tokyo, Japan; Department of Plastic and Reconstructive Surgery, National Cancer Center Hospital East, Kashiwa, Japan.
| | - H Umezawa
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Tokyo, Japan
| | - Y Fukunaga
- Department of Plastic and Reconstructive Surgery, National Cancer Center Hospital East, Kashiwa, Japan
| | - A Oshima
- Department of Plastic and Reconstructive Surgery, National Cancer Center Hospital East, Kashiwa, Japan
| | - T Higashino
- Department of Plastic and Reconstructive Surgery, National Cancer Center Hospital East, Kashiwa, Japan
| | - R Ogawa
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Tokyo, Japan
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Ikeda M, Nakajima D, Oshima A, Oshima Y, Kayawake H, Tanaka S, Yamada Y, Yutaka Y, Ohsumi A, Hamaji M, Date H. The Effects of Early Postoperative Nutrition Support on Enhanced Recovery After Lung Transplantation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1087] [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] Open
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Imamura T, Oshima A, Kinugawa K. Implication of Mineralocorticoid Receptor Antagonist Esaxerenone in Patients with HFpEF. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1108] [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] Open
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Imamura T, Oshima A, Onoda H, Tanaka S, Ushijima R, Sobajima M, Fukuda N, Ueno H, Kinugawa K. Clinical implications of troponin-T elevations following TAVR. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehab849.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Baseline and post-procedural elevations in serum troponin-T levels are associated with increased morbidity and mortality following transcatheter aortic valve replacement (TAVR). However, the prognostic impact of change in serum troponin-T level following TAVR remains unknown.
Methods
Among the patients with severe aortic stenosis who underwent TAVR, those with baseline serum troponin-T level ≥51.5 ng/L were excluded. The impact of increases in serum troponin-T level to an abnormally high range (≥51.5 ng/L) following TAVR on 2-year cardiovascular death or heart failure readmissions was investigated.
Results
Among 189 included patients (median 86 years old, 28% men), serum troponin-T level increased in 79 patients following TAVR. An increase in serum troponin-T was associated with a higher rate of 30-day adverse events, predominantly due to pacemaker implantation for complete atrio-ventricular block, and a higher 2-year cumulative incidence of the primary endpoint (hazard ratio 3.97, 95% confidence interval 1.51-10.4, p = 0.005) adjusted for the use of balloon-expandable valve and post-TAVR pacemaker implantation (Figure 1).
Conclusion
Post-procedural increase in serum troponin-T level was associated with adverse clinical outcomes following TAVR. Abstract Figure. Cumulative incidence of endpoint
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Affiliation(s)
| | - A Oshima
- University of Toyama, Toyama, Japan
| | - H Onoda
- University of Toyama, Toyama, Japan
| | - S Tanaka
- University of Toyama, Toyama, Japan
| | | | | | - N Fukuda
- University of Toyama, Toyama, Japan
| | - H Ueno
- University of Toyama, Toyama, Japan
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Ito D, Ishikawa C, Jeffery ND, Oshima A, Nakayama T, Kitagawa M. 'T-SLIP' MRI imaging of cerebrospinal fluid flow through the mesencephalic aqueduct. J Small Anim Pract 2020; 61:206-207. [PMID: 31930501 DOI: 10.1111/jsap.13106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 11/12/2019] [Accepted: 11/25/2019] [Indexed: 11/26/2022]
Affiliation(s)
- D Ito
- Laboratory of Veterinary Neurology, School of Veterinary Medicine, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - C Ishikawa
- Laboratory of Veterinary Neurology, School of Veterinary Medicine, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - N D Jeffery
- Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX, 77843, USA
| | - A Oshima
- Laboratory of Veterinary Neurology, School of Veterinary Medicine, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - T Nakayama
- Laboratory of Veterinary Radiology, School of Veterinary Medicine, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - M Kitagawa
- Laboratory of Veterinary Neurology, School of Veterinary Medicine, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
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Hariharan B, Chandra A, Dugad SR, Gupta SK, Jagadeesan P, Jain A, Mohanty PK, Morris SD, Nayak PK, Rakshe PS, Ramesh K, Rao BS, Reddy LV, Zuberi M, Hayashi Y, Kawakami S, Ahmad S, Kojima H, Oshima A, Shibata S, Muraki Y, Tanaka K. Measurement of the Electrical Properties of a Thundercloud Through Muon Imaging by the GRAPES-3 Experiment. Phys Rev Lett 2019; 122:105101. [PMID: 30932668 DOI: 10.1103/physrevlett.122.105101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 01/21/2019] [Indexed: 06/09/2023]
Abstract
The GRAPES-3 muon telescope located in Ooty, India records rapid (∼10 min) variations in the muon intensity during major thunderstorms. Out of a total of 184 thunderstorms recorded during the interval of April 2011-December 2014, the one on December 1, 2014 produced a massive potential of 1.3 GV. The electric field measured by four well-separated (up to 6 km) monitors on the ground was used to help estimate some of the properties of this thundercloud, including its altitude and area that were found to be 11.4 km above mean sea level and ≥380 km^{2}, respectively. A charging time of 6 min to reach 1.3 GV implied the delivery of a power of ≥2 GW by this thundercloud that was moving at a speed of ∼60 km h^{-1}. This work possibly provides the first direct evidence for the generation of gigavolt potentials in thunderclouds that could also possibly explain the production of highest-energy (100 MeV) gamma rays in the terrestrial gamma-ray flashes.
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Affiliation(s)
- B Hariharan
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - A Chandra
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - S R Dugad
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - S K Gupta
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - P Jagadeesan
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - A Jain
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - P K Mohanty
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - S D Morris
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - P K Nayak
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - P S Rakshe
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - K Ramesh
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - B S Rao
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - L V Reddy
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - M Zuberi
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
| | - Y Hayashi
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
- Graduate School of Science, Osaka City University, Osaka 558-8585, Japan
| | - S Kawakami
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
- Graduate School of Science, Osaka City University, Osaka 558-8585, Japan
| | - S Ahmad
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
- Aligarh Muslim University, Aligarh 202002, India
| | - H Kojima
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
- College of Engineering, Chubu University, Kasugai, Aichi 487-8501, Japan
| | - A Oshima
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
- College of Engineering, Chubu University, Kasugai, Aichi 487-8501, Japan
| | - S Shibata
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
- College of Engineering, Chubu University, Kasugai, Aichi 487-8501, Japan
| | - Y Muraki
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Aichi 446-8601, Japan
| | - K Tanaka
- Cosmic Ray Laboratory, Raj Bhavan, Ooty 643001, India
- Graduate School of Information Sciences, Hiroshima City University, Hiroshima 731-3194, Japan
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Mohanty P, Arunbabu K, Aziz T, Dugad S, Gupta S, Hariharan B, Jagadeesan P, Jain A, Morris S, Nayak P, Rakshe P, Ramesh K, Rao B, Zuberi M, Hayashi Y, Kawakami S, Subramanian P, Raha S, Ahmad S, Oshima A, Shibata S, Kojima H. Was the cosmic ray burst detected by the GRAPES-3 muon telescope on 22 June 2015 caused by a transient weakening of the geomagnetic field or by an interplanetary anisotropy? Int J Clin Exp Med 2018. [DOI: 10.1103/physrevd.97.082001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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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9
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Mohanty PK, Arunbabu KP, Aziz T, Dugad SR, Gupta SK, Hariharan B, Jagadeesan P, Jain A, Morris SD, Rao BS, Hayashi Y, Kawakami S, Oshima A, Shibata S, Raha S, Subramanian P, Kojima H. Transient Weakening of Earth's Magnetic Shield Probed by a Cosmic Ray Burst. Phys Rev Lett 2016; 117:171101. [PMID: 27824449 DOI: 10.1103/physrevlett.117.171101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Indexed: 06/06/2023]
Abstract
The GRAPES-3 tracking muon telescope in Ooty, India measures muon intensity at high cutoff rigidities (15-24 GV) along nine independent directions covering 2.3 sr. The arrival of a coronal mass ejection on 22 June 2015 18:40 UT had triggered a severe G4-class geomagnetic storm (storm). Starting 19:00 UT, the GRAPES-3 muon telescope recorded a 2 h high-energy (∼20 GeV) burst of galactic cosmic rays (GCRs) that was strongly correlated with a 40 nT surge in the interplanetary magnetic field (IMF). Simulations have shown that a large (17×) compression of the IMF to 680 nT, followed by reconnection with the geomagnetic field (GMF) leading to lower cutoff rigidities could generate this burst. Here, 680 nT represents a short-term change in GMF around Earth, averaged over 7 times its volume. The GCRs, due to lowering of cutoff rigidities, were deflected from Earth's day side by ∼210° in longitude, offering a natural explanation of its night-time detection by the GRAPES-3. The simultaneous occurrence of the burst in all nine directions suggests its origin close to Earth. It also indicates a transient weakening of Earth's magnetic shield, and may hold clues for a better understanding of future superstorms that could cripple modern technological infrastructure on Earth, and endanger the lives of the astronauts in space.
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Affiliation(s)
- P K Mohanty
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India†
| | - K P Arunbabu
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India†
| | - T Aziz
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India†
| | - S R Dugad
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India†
| | - S K Gupta
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India†
| | - B Hariharan
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India†
| | - P Jagadeesan
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India†
| | - A Jain
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India†
| | - S D Morris
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India†
| | - B S Rao
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400005, India†
| | - Y Hayashi
- Graduate School of Science, Osaka City University, 558-8585 Osaka, Japan†
| | - S Kawakami
- Graduate School of Science, Osaka City University, 558-8585 Osaka, Japan†
| | - A Oshima
- College of Engineering, Chubu University, Kasugai, Aichi 487-8501, Japan†
| | - S Shibata
- College of Engineering, Chubu University, Kasugai, Aichi 487-8501, Japan†
| | - S Raha
- Bose Institute, 93/1, A.P.C. Road, Kolkata 700009, India†
| | - P Subramanian
- Indian Institute of Science Education and Research, Pune 411021, India†
| | - H Kojima
- Faculty of Engineering, Aichi Institute of Technology, Toyota City, Aichi 470-0392, Japan†
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10
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Abbasi R, Abe M, Abu-Zayyad T, Allen M, Azuma R, Barcikowski E, Belz J, Bergman D, Blake S, Cady R, Chae M, Cheon B, Chiba J, Chikawa M, Cho W, Fujii T, Fukushima M, Goto T, Hanlon W, Hayashi Y, Hayashida N, Hibino K, Honda K, Ikeda D, Inoue N, Ishii T, Ishimori R, Ito H, Ivanov D, Jui C, Kadota K, Kakimoto F, Kalashev O, Kasahara K, Kawai H, Kawakami S, Kawana S, Kawata K, Kido E, Kim H, Kim J, Kim J, Kitamura S, Kitamura Y, Kuzmin V, Kwon Y, Lan J, Lim S, Lundquist J, Machida K, Martens K, Matsuda T, Matsuyama T, Matthews J, Minamino M, Mukai Y, Myers I, Nagasawa K, Nagataki S, Nakamura T, Nonaka T, Nozato A, Ogio S, Ogura J, Ohnishi M, Ohoka H, Oki K, Okuda T, Ono M, Oshima A, Ozawa S, Park I, Pshirkov M, Rodriguez D, Rubtsov G, Ryu D, Sagawa H, Sakurai N, Scott L, Shah P, Shibata F, Shibata T, Shimodaira H, Shin B, Shin H, Smith J, Sokolsky P, Springer R, Stokes B, Stratton S, Stroman T, Suzawa T, Takamura M, Takeda M, Takeishi R, Taketa A, Takita M, Tameda Y, Tanaka H, Tanaka K, Tanaka M, Thomas S, Thomson G, Tinyakov P, Tkachev I, Tokuno H, Tomida T, Troitsky S, Tsunesada Y, Tsutsumi K, Uchihori Y, Udo S, Urban F, Vasiloff G, Wong T, Yamane R, Yamaoka H, Yamazaki K, Yang J, Yashiro K, Yoneda Y, Yoshida S, Yoshii H, Zollinger R, Zundel Z. Measurement of the proton-air cross section with Telescope Array’s Middle Drum detector and surface array in hybrid mode. Int J Clin Exp Med 2015. [DOI: 10.1103/physrevd.92.032007] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [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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Abstract
The eyes of 2 male and 2 female GSP/pe chickens, the imperfect albino strain, were investigated at 52 weeks of age. Aged chickens of the GSP/pe colony became blind with bilateral ocular enlargement and opaque lenses. Affected eyes (bilateral in 2 males and unilateral in 2 females) were hard and difficult to section; histologic specimens were processed after decalcification. A large portion of the posterior chamber was occupied by cancellous bone containing fibrous and cartilaginous foci. Osseous tissues developed adjacent to the choroid, and no retinal pigment epithelium (RPE) was detected between osseous tissues and the choroid. Small segments of degenerate neuronal retina were scattered in the osseous tissue. The irises and ciliary bodies were deformed by osseous tissue, and the lenses had severe cataracts. These observations suggest that the intraocular osseous tissue may be derived from RPE in the hereditary incomplete-albino strain of chickens.
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Affiliation(s)
- K Shibuya
- Research and Development Department, Nippon Institute for Biological Science, Ome, Tokyo, Japan
| | - K Kinoshita
- Avian Bioscience Research Center, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan
| | - M Mizutani
- Avian Bioscience Research Center, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan
| | - A Oshima
- Research and Development Department, Nippon Institute for Biological Science, Ome, Tokyo, Japan
| | - R Yamashita
- Research and Development Department, Nippon Institute for Biological Science, Ome, Tokyo, Japan
| | - Y Matsuda
- Avian Bioscience Research Center, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan
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Hosaka A, Miyata T, Hoshina K, Okamoto H, Shigematsu K, Oshima A. Prognosis of arterial aneurysm after surgery in patients with Behçet's disease. INT ANGIOL 2014; 33:419-425. [PMID: 25294282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM Despite improvements in therapeutic modalities, the treatment of arterial aneurysms complicating Behçet's disease (BD) is still challenging. This study examined the long-term prognosis after surgery for arterial aneurysms in BD. METHODS This study included 9 patients with BD (8 men and 1 woman) who underwent surgery for arterial aneurysms between 1989 and 2008. The outcomes after the surgical intervention were assessed, including procedure-related complications and survival. RESULTS The initial surgical procedures were performed for aortic or iliac aneurysms in 5 patients and for lower-extremity aneurysms in 4 patients. There was no operative mortality. The mean follow-up period was 135±69 months, ranging from 53 to 259 months. Patients with aortic or iliac aneurysms underwent graft interposition with Dacron prostheses. Their postoperative courses were uneventful, and all patients were alive during the follow-up with no procedure-related complications. Those treated for lower-extremity aneurysms tended to show perioperative and postoperative complications, including aneurysmal degeneration of the autogenous vein graft in 2 patients. One patient who initially underwent surgery for a popliteal artery aneurysm died due to the rupture of a dissecting aortic aneurysm after serial surgical interventions for multiple aneurysms. Concomitant aortic or iliac aneurysms in 2 patients were followed up without any change in size under medical treatment using colchicine and corticosteroids. CONCLUSION Although we cannot draw a firm conclusion because of the small number of cases in the present series, graft interposition can lead to a favorable prognosis in BD patients with aortic or iliac aneurysms, whereas surgical treatment of BD-related lower-extremity aneurysms is frequently associated with short- and long-term postoperative complications. Immunosuppressive therapy might possibly improve treatment outcomes.
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Affiliation(s)
- A Hosaka
- Department of Surgery, Tokyo Metropolitan Tama Medical Center, Musashidai, Fuchu-shi, Tokyo, Japan -
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13
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Abu-Zayyad T, Aida R, Allen M, Anderson R, Azuma R, Barcikowski E, Belz JW, Bergman DR, Blake SA, Cady R, Cheon BG, Chiba J, Chikawa M, Cho EJ, Cho WR, Fujii H, Fujii T, Fukuda T, Fukushima M, Gorbunov D, Hanlon W, Hayashi K, Hayashi Y, Hayashida N, Hibino K, Hiyama K, Honda K, Iguchi T, Ikeda D, Ikuta K, Inoue N, Ishii T, Ishimori R, Ivanov D, Iwamoto S, Jui CCH, Kadota K, Kakimoto F, Kalashev O, Kanbe T, Kasahara K, Kawai H, Kawakami S, Kawana S, Kido E, Kim HB, Kim HK, Kim JH, Kim JH, Kitamoto K, Kitamura S, Kitamura Y, Kobayashi K, Kobayashi Y, Kondo Y, Kuramoto K, Kuzmin V, Kwon YJ, Lan J, Lim SI, Machida S, Martens K, Matsuda T, Matsuura T, Matsuyama T, Matthews JN, Minamino M, Miyata K, Murano Y, Myers I, Nagasawa K, Nagataki S, Nakamura T, Nam SW, Nonaka T, Ogio S, Ohnishi M, Ohoka H, Oki K, Oku D, Okuda T, Oshima A, Ozawa S, Park IH, Pshirkov MS, Rodriguez DC, Roh SY, Rubtsov GI, Ryu D, Sagawa H, Sakurai N, Sampson AL, Scott LM, Shah PD, Shibata F, Shibata T, Shimodaira H, Shin BK, Shin JI, Shirahama T, Smith JD, Sokolsky P, Stokes BT, Stratton SR, Stroman T, Suzuki S, Takahashi Y, Takeda M, Taketa A, Takita M, Tameda Y, Tanaka H, Tanaka K, Tanaka M, Thomas SB, Thomson GB, Tinyakov P, Tkachev I, Tokuno H, Tomida T, Troitsky S, Tsunesada Y, Tsutsumi K, Tsuyuguchi Y, Uchihori Y, Udo S, Ukai H, Vasiloff G, Wada Y, Wong T, Wood M, Yamakawa Y, Yamane R, Yamaoka H, Yamazaki K, Yang J, Yoneda Y, Yoshida S, Yoshii H, Zhou X, Zollinger R, Zundel Z. Upper limit on the flux of photons with energies above1019 eVusing the Telescope Array surface detector. Int J Clin Exp Med 2013. [DOI: 10.1103/physrevd.88.112005] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [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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Hiraiwa S, Yoshikawa T, Oshima A, Washio M. Evaluation of PEFC Membrane based on Cross-linked PTFE by EB Grafting: Effect of Thickness for FC Performance. J PHOTOPOLYM SCI TEC 2012. [DOI: 10.2494/photopolymer.25.481] [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: 11/09/2022]
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15
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Chu IM, Michalowski AM, Hoenerhoff M, Szauter KM, Luger D, Sato M, Flanders K, Oshima A, Csiszar K, Green JE. GATA3 inhibits lysyl oxidase-mediated metastases of human basal triple-negative breast cancer cells. Oncogene 2011; 31:2017-27. [PMID: 21892208 PMCID: PMC3235255 DOI: 10.1038/onc.2011.382] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [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: 12/14/2022]
Abstract
Discovery of mechanisms that impede the aggressive and metastatic phenotype of human basal triple-negative type breast cancers (BTNBC) could provide novel targets for therapy for this form of breast cancer that has a relatively poor prognosis. Previous studies have demonstrated that the expression of GATA3, the master transcriptional regulator of mammary luminal differentiation, can reduce the tumorigenicity and metastatic propensity of the human BTNBC MDA-MB-231 cell line (MB231), although the mechanism for reduced metastases was not elucidated. We demonstrate through gene expression profiling that GATA3 expression in 231 cells resulted in the dramatic reduction in the expression of Lysyl oxidase (LOX), a metastasis-promoting matrix remodeling protein, in part, through methylation of the LOX promoter. Suppression of LOX expression by GATA3 was further confirmed in the BTNBC Hs578T cell line. Conversely, reduction of GATA3 expression by siRNA in luminal BT474 cells increased LOX expression. Reconstitution of LOX expression in 231-GATA3 cells restored metastatic propensity. A strong inverse association between high LOX and low GATA3 expression was confirmed in a panel of 51 human breast cancer cell lines. Similarly, human breast cancer microarray data demonstrated that high LOX/low GATA3 expression is associated with the BTNBC subtype of breast cancer and poor patient prognosis. Expression of GATA3 reprograms BTNBC to a less aggressive phenotype and inhibits a major mechanism of metastasis through inhibition of LOX. Induction of GATA3 in BTNBC cells or novel approaches that inhibit LOX expression or activity could be important strategies for treating BTNBC.
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Affiliation(s)
- I M Chu
- Laboratory of Cancer Biology and Genetics, National Cancer Institute, Bethesda, MD, USA
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Oka T, Oshima A, Motohashi R, Seto N, Watanabe Y, Kobayashi R, Saito K, Kudo H, Murakami T, Washio M, Hama Y. Changes to the chemical structure of isotactic-polypropylene induced by ion-beam irradiation. Radiat Phys Chem Oxf Engl 1993 2011. [DOI: 10.1016/j.radphyschem.2010.07.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [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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17
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Katanoda K, Saika K, Yamamoto S, Tanaka S, Oshima A, Nakamura M, Satoh H, Tajima K, Suzuki T, Tamakoshi A, Tsugane S, Sobue T. Projected Cancer Mortality Among Japanese Males Under Different Smoking Prevalence Scenarios: Evidence for Tobacco Control Goal Setting. Jpn J Clin Oncol 2011; 41:483-9. [DOI: 10.1093/jjco/hyq247] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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18
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Oshima A, Ito S, Abe Y, Uchiyama T, Iida H, Endo H, Hosono K, Sakamoto Y, Fujita K, Yoneda M, Takahashi H, Koide T, Tokoro C, Goto A, Inamori M, Kobayashi N, Kubota K, Saito S, Nakajima A. Mesenteric phlebosclerosis. Endoscopy 2010; 42 Suppl 2:E156-7. [PMID: 20556711 DOI: 10.1055/s-0029-1244147] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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: 12/10/2022]
Affiliation(s)
- A Oshima
- Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
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Abstract
There are several established risk factors for intrahepatic cholangiocarcinoma (ICC), namely primary sclerosing cholangitis, fibropolycystic liver disease, parasitic infection, intrahepatic biliary stones and chemical carcinogen exposure. However, the majority of patients with ICC do not have any of these risk factors. Therefore, identification of other risk factors is warranted for the prevention and early detection of ICC. We evaluated the risk factors for ICC in a large-scale cohort study in the province of Osaka, Japan. This retrospective cohort study included 154,814 apparently healthy individual blood donors, aged 40-64 years at the time of blood donation in the period 1991-1993. The average observation period was 7.6 years, resulting in 1.25 million person-years of observation. Incident ICC cases were identified by linking the blood-donor database to the records in the population-based cancer registry for the province. There were 11 incident ICC cases during follow-up, with an incidence rate of 0.88 per 100,000 person-years. Compared with subjects aged 40-49 years, the subjects aged 50-54 years and 55-59 years had a significantly higher risk for ICC (hazard ratio [HR] = 5.90; 95%CI:1.08-32.31 and 11.07; 95%CI:1.98-61.79, respectively). Compared with those with ALT level of 19 Karmen Units (KU) or less, subjects with ALT level of 40 KU or higher had a significantly higher risk for ICC (HR: 8.30; 95%CI:1.47-46.83). Compared with those who tested negative for both HBsAg and anti-HCV, those who tested HBsAg-positive had a significantly higher risk for ICC (HR: 8.56; 95%CI: 1.33-55.20). Our results suggest that HBV infection and liver inflammation are independently associated with ICC development. These findings need to be verified by further large cohort studies.
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Affiliation(s)
- M Tanaka
- Department of Cancer Control and Statistics, Osaka Medical Center for Cancer and Cardiovascular DiseasesOsaka, Japan
| | - H Tanaka
- Aichi Cancer Center Research InstituteNagoya, Japan
| | - H Tsukuma
- Department of Cancer Control and Statistics, Osaka Medical Center for Cancer and Cardiovascular DiseasesOsaka, Japan
| | - A Ioka
- Department of Cancer Control and Statistics, Osaka Medical Center for Cancer and Cardiovascular DiseasesOsaka, Japan
| | - A Oshima
- Cancer Information Services, Osaka Medical Center for Cancer and Cardiovascular DiseasesOsaka, Japan
| | - T Nakahara
- Graduate School of Medicine, Kyoto UniversityKyoto, Japan
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Kudo H, Sudo S, Oka T, Hama Y, Oshima A, Washio M, Murakami T. Ion-beam irradiation effects on polyimide-UV–vis and infrared spectroscopic study. Radiat Phys Chem Oxf Engl 1993 2009. [DOI: 10.1016/j.radphyschem.2009.06.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
4628 Background: A prospective high-throughput gene expression study was conducted to identify transcriptional profiles predictive of a clinical response to cisplatin and fluorouracil (CF) combination chemotherapy and to identify dysregulated genes associated with acquired resistance to CF. Methods: Endoscopic biopsy samples were collected from CF-treated metastatic gastric cancer (MGC) patients (pts) prior to CF (n = 123) and following the development of resistance (n = 22) at the National Cancer Center of Korea from 2001 to 2006, and analyzed using CGH and expression microarrays. We developed 2 survival risk predictors. The first predictor was constructed using genes in DNA amplicons and identified in the expression signature that correlates with survival (intrinsic resistance signature). The second predictor was based on the acquired resistance signature, which was identified by comparing matched expression array data from initially responsive patients prior to treatment with profiles obtained at progressive disease. Results: Array CGH revealed the gene amplification of MYC, EGFR, and FGFR2 whose Affymetrix U133A signals significantly correlated with a poor prognosis (P values, 0.0154, 0.0096, and 0.0057) of training set pts (n = 96). Three-gene-predicted high-risk group of the validation cohort (n = 10) demonstrated a shorter median survival than low-risk (n = 17) group (7.4 vs 16.8 months; p = 0.047). The 3-gene signature, as a continuous variable, was the independent predictor for overall survival (OS) and time to progression (TTP) (adjusted P, 0.021, and 0.012). Importantly, the acquired resistance signature strongly overlapped the intrinsic resistance signature (LS P<10-5), and was highly enriched for MYC target genes (LS p = 2x10-5). A predictor based on MYC target genes within the acquired resistance signature was the independent predictor for OS and TTP of 101 separate pts (adjusted p, 0.015, and 0.011). Conclusions: Combined overexpression of MYC, EGFR, and FGFR2 predicts a poor response of MGC pts to CF. There is significant overlap between intrinsic and acquired resistance signatures of MGC, where the MYC gene network plays a central role. This is the first demonstration that the acquired resistance signature predicts the initial response to chemotherapy. No significant financial relationships to disclose.
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Affiliation(s)
- H. K. Kim
- NCI, Bethesda, MD; National Cancer Center, Goyang, Republic of Korea
| | - I. J. Choi
- NCI, Bethesda, MD; National Cancer Center, Goyang, Republic of Korea
| | - C. G. Kim
- NCI, Bethesda, MD; National Cancer Center, Goyang, Republic of Korea
| | - A. Oshima
- NCI, Bethesda, MD; National Cancer Center, Goyang, Republic of Korea
| | - J. E. Green
- NCI, Bethesda, MD; National Cancer Center, Goyang, Republic of Korea
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Maeda S, Suga M, Nakagawa S, Yamashita E, Oshima A, Fujiyoshi Y, Tsukihara T. X-ray structure of human gap junction channel. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308095718] [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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23
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Oshima A, Toloue M, Tani K, Hiroaki Y, Nicholson B, Sosinsky G, Fujiyoshi Y. Structural and functional significance of the N-terminus of Cx26 gap junction channels. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308098504] [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: 04/03/2023] Open
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Oshima A, Jaijo T, Aller E, Millan JM, Carney C, Usami S, Moller C, Kimberling WJ. Mutation profile of the CDH23 gene in 56 probands with Usher syndrome type I. Hum Mutat 2008; 29:E37-46. [PMID: 18429043 DOI: 10.1002/humu.20761] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Mutations in the human gene encoding cadherin23 (CDH23) cause Usher syndrome type 1D (USH1D) and nonsyndromic hearing loss. Individuals with Usher syndrome type I have profound congenital deafness, vestibular areflexia and usually begin to exhibit signs of RP in early adolescence. In the present study, we carried out the mutation analysis in all 69 exons of the CDH23 gene in 56 Usher type 1 probands already screened for mutations in MYO7A. A total of 18 of 56 subjects (32.1%) were observed to have one or two CDH23 variants that are presumed to be pathologic. Twenty one different pathologic genome variants were observed of which 15 were novel. Out of a total of 112 alleles, 31 (27.7%) were considered pathologic. Based on our results it is estimated that about 20% of patients with Usher syndrome type I have CDH23 mutations.
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Affiliation(s)
- A Oshima
- Center for the Study and Treatment of Usher Syndrome, Boys Town National research hospital, Omaha, Nebraska 68131, USA
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25
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Usami S, Takumi Y, Suzuki N, Oguchi T, Oshima A, Suzuki H, Kitoh R, Abe S, Sasaki A, Matsubara A. The localization of proteins encoded by CRYM, KIAA1199, UBA52, COL9A3, and COL9A1, genes highly expressed in the cochlea. Neuroscience 2008; 154:22-8. [PMID: 18448257 DOI: 10.1016/j.neuroscience.2008.03.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2007] [Revised: 03/08/2008] [Accepted: 03/11/2008] [Indexed: 11/25/2022]
Abstract
Genes that are highly expressed in the inner ear, as revealed by cDNA microarray analysis, may have a crucial functional role there. Those that are expressed specifically in auditory tissues are likely to be good candidates to screen for genetic alterations in patients with deafness, and several genes have been successfully identified as responsible for hereditary hearing loss. To understand the detailed mechanisms of the hearing loss caused by the mutations in these genes, the present study examined the immunocytochemical localization of the proteins encoded by Crym, KIAA1199 homolog, Uba52, Col9a3, and Col9a1 in the cochlea of rats and mice. Confocal microscopic immunocytochemistry was performed on cryostat sections. Ultrastructurally, postembedding immunogold cytochemistry was applied using Lowicryl sections. Crym protein was predominantly distributed in the fibrocytes in the spiral ligament, as well as the stria vascularis in rats. KIAA1199 protein homolog was localized in various supporting cells, including inner phalangeal, border, inner and outer pillar, and Deiters' cells. Uba52 protein was restrictedly localized within the surface of the marginal cells of the stria vascularis. Collagen type IX was found within the tectorial membrane as well as fibrocytes in the spiral ligament. The present results showed cell-specific localization of the encoded proteins of these highly expressed genes, indicating that the coordinated actions of various molecules distributed in different parts of the cochlea are essential for maintenance of auditory processing in the cochlea.
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Affiliation(s)
- S Usami
- Department of Otorhinolaryngology, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto 390-8621, Japan.
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Takahashi K, Oshima A, Ida I, Kumano H, Yuuki N, Fukuda M, Amanuma M, Endo K, Mikuni M. Relationship between age at onset and magnetic resonance image-defined hyperintensities in mood disorders. J Psychiatr Res 2008; 42:443-50. [PMID: 17588605 DOI: 10.1016/j.jpsychires.2007.05.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [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: 12/22/2006] [Revised: 05/03/2007] [Accepted: 05/03/2007] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To examine in patients with mood disorders the relationship of age at onset with the location and degree of MRI-defined brain hyperintensities. METHOD Fifty-two patients diagnosed as having mood disorders and 14 controls participated in the study. Brain MR images were analyzed according to semiquantitative ratings for the anatomical distribution and severity of T2-weighted hyperintensities. We compared these hyperintensities among the three age- and sex-matched groups of late-onset mood disorder patients (LOM), early-onset mood disorder patients (EOM), and controls. The time since the onset of disorder was significantly longer in the EOM than in the LOM group. We also conducted linear multiple regression analysis using the severity of hyperintensities as dependent variable to determine whether the clinical features correlate with vascular pathology. RESULTS As for deep white matter hyperintensity (DWMH), LOM exhibited higher ratings than EOM; as for brain areas, significant between-group differences were detected in the bilateral frontal areas and in the left parieto-occipital area. No significant difference was observed between EOM and controls. As for periventricular hyperintensity, there was no difference among the three groups. We obtained a significant regression model to predict DWMH ratings; age, number of ECTs, and LOM were selected as significant variables. CONCLUSION The present study suggests that the time since the onset of disorder does not affect the development of white matter lesions, but that white matter lesions are associated with late-onset mood disorders. The frontal areas and the left parieto-occipital area would be important for the development of late-onset mood disorders.
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Affiliation(s)
- K Takahashi
- Department of Psychiatry and Human Behavior, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
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Tabata N, Ohno Y, Matsui R, Sugiyama H, Ito Y, Tsukuma H, Oshima A. Partial Cancer Prevalence in Japan up to 2020: Estimates Based on Incidence and Survival Data from Population-based Cancer Registries. Jpn J Clin Oncol 2008; 38:146-57. [DOI: 10.1093/jjco/hym156] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kumano H, Ida I, Oshima A, Takahashi K, Yuuki N, Amanuma M, Oriuchi N, Endo K, Matsuda H, Mikuni M. Brain metabolic changes associated with predispotion to onset of major depressive disorder and adjustment disorder in cancer patients--a preliminary PET study. J Psychiatr Res 2007; 41:591-9. [PMID: 16684544 DOI: 10.1016/j.jpsychires.2006.03.006] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [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: 12/12/2005] [Revised: 02/27/2006] [Accepted: 03/15/2006] [Indexed: 11/23/2022]
Abstract
OBJECTIVES To explore neurobiological risk factors for major depressive disorder (MDD) and adjustment disorder in cancer patients by examining regional brain metabolism before psychiatric manifestation using positron emission tomography and by prospectively observing depressive and anxiety symptoms. METHOD Cancer patients who showed no psychiatric symptoms when they underwent 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET) were followed up for one year using the Hospital Anxiety and Depression Scale (HADS). Fourteen patients who showed high HADS scores and 14 patients who showed low HADS scores were assessed by a psychiatrist 2 years after the PET scan and grouped into the deterioration group (n=10) and the no-change group (n=9). 18F-FDG PET images were analyzed to examine the difference in local brain glucose metabolism between the two groups. RESULTS The deterioration group showed a decreased glucose metabolism in the right medial frontal gyrus (BA6) and an increased glucose metabolism in the right posterior cingulate (BA29), right anterior cingulate (BA25), left subcallosal gyrus (BA25), and left caudate compared with the no-change group. CONCLUSION Cancer patients who later developed MDD or adjustment disorder showed regional brain metabolic changes. These regions may be associated with vulnerability to the onset of MDD or adjustment disorder in cancer patients.
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Affiliation(s)
- H Kumano
- Department of Psychiatry and Human Behavior, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma 371-8511, Japan
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Nonaka T, Hayashi Y, Ito N, Kawakami S, Matsuyama T, Oshima A, Tanaka H, Yoshikoshi T, Gupta SK, Jain A, Karthikeyan S, Mohanty PK, Morris SD, Rao BS, Ravindran KC, Sivaprasad K, Sreekantan BV, Tonwar SC, Viswanathan K, Kojima H. Did the 28 October 2003 solar flare accelerate protons to≳20 GeV? A study of the subsequent Forbush decrease with the GRAPES-3 tracking muon telescope. Int J Clin Exp Med 2006. [DOI: 10.1103/physrevd.74.052003] [Citation(s) in RCA: 19] [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: 11/07/2022]
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Oshima A, Suzuki S, Takumi Y, Hashizume K, Abe S, Usami S. CRYM mutations cause deafness through thyroid hormone binding properties in the fibrocytes of the cochlea. J Med Genet 2006; 43:e25. [PMID: 16740909 PMCID: PMC2564543 DOI: 10.1136/jmg.2005.034397] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2005] [Revised: 06/11/2005] [Accepted: 06/22/2005] [Indexed: 11/03/2022]
Abstract
BACKGROUND In a search for mutations of mu-crystallin (CRYM), a taxion specific crystalline which is also known as an NADP regulated thyroid hormone binding protein, two mutations were found at the C-terminus in patients with non-syndromic deafness. OBJECTIVE To investigate the mechanism of hearing loss caused by CRYM mutations METHODS T3 binding activity of mutant mu-crystallin was compared with that of wild-type mu-crystallin, because mu-crystallin is known to be identical to T3 binding protein. To explore the sites within the cochlea where mu-crystallin is functioning, its localisation in the mouse cochlea was investigated immunocytochemically using a specific antibody. RESULTS One mutant was shown to have no binding capacity for T3, indicating that CRYM mutations cause auditory dysfunction through thyroid hormone binding properties. Immunocytochemical results indicated that mu-crystallin was distributed within type II fibrocytes of the lateral wall, which are known to contain Na,K-ATPase. CONCLUSIONS CRYM mutations may cause auditory dysfunction through thyroid hormone binding effects on the fibrocytes of the cochlea. mu-Crystallin may be involved in the potassium ion recycling system together with Na,K-ATPase. Future animal experiments will be necessary to confirm a causal relation between Na,K-ATPase, T3, and deafness.
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Yuuki N, Ida I, Oshima A, Kumano H, Takahashi K, Fukuda M, Oriuchi N, Endo K, Matsuda H, Mikuni M. HPA axis normalization, estimated by DEX/CRH test, but less alteration on cerebral glucose metabolism in depressed patients receiving ECT after medication treatment failures. Acta Psychiatr Scand 2005; 112:257-65. [PMID: 16156832 DOI: 10.1111/j.1600-0447.2005.00625.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To examine the clinical effects of electroconvulsive therapy (ECT) on depressed patients with medication treatment failures, we investigated the alterations in hypothalamic-pituitary-adrenocortical (HPA) function and regional cerebral metabolism rate of glucose (rCMRGlu) after ECT in these patients. METHOD Before and after ECT, the combined dexamethasone/corticotrophin-releasing hormone (DEX/CRH) test was administered to seven patients who were referred for ECT. In the same patients, (18)F-fluorodeoxyglucose positron emission tomography ((18)F-FDG PET) was also assessed. RESULTS Cortisol response in the DEX/CRH test significantly decreased after a successful ECT. A significant hypometabolism in various frontal regions and hypermetabolism in the parietal regions of these patients when compared with controls remained after ECT. CONCLUSION Depressed patients who failed trials of antidepressant medication showed a remission with ECT that was accompanied by resolution of HPA dysregulation. However, measures of cerebral brain metabolism did not resolve.
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Affiliation(s)
- N Yuuki
- Department of Psychiatry and Human Behavior, Gunma University Graduate School of Medicine, Gunma, Japan
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Affiliation(s)
- H Storm
- Danish Cancer Society, Copenhagen, Denmark
| | - D H Brewster
- Scottish Cancer Registry, Edinburgh, Scotland, UK
| | - M P Coleman
- Non-Communicable Disease Epidemiology Unit, London School of Hygiene and Tropical Medicine, London, UK
| | - D Deapen
- Los Angeles Cancer Surveillance Program, Los Angeles, USA
| | - A Oshima
- Osaka Cancer Registry, Osaka, Japan
| | - T Threlfall
- Western Australian Cancer Registry, Perth, Australia
| | - E Démaret
- Descriptive Epidemiology Group, International Agency for Research on Cancer, Lyon, France
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33
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Takaura N, Yagi T, Maeda M, Nanba E, Oshima A, Suzuki Y, Yamano T, Tanaka A. Attenuation of ganglioside GM1 accumulation in the brain of GM1 gangliosidosis mice by neonatal intravenous gene transfer. Gene Ther 2003; 10:1487-93. [PMID: 12900764 DOI: 10.1038/sj.gt.3302033] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A single intravenous injection with 4 x 10(7) PFU of recombinant adenovirus encoding mouse beta-galactosidase cDNA to newborn mice provided widespread increases of beta-galactosidase activity, and attenuated the development of the disease including the brain at least for 60 days. The beta-galactosidase activity showed 2-4 times as high a normal activity in the liver and lung, and 50 times in the heart. In the brain, while the activity was only 10-20% of normal, the efficacy of the treatment was distinct. At the 30th day after the injection, significant attenuation of ganglioside GM1 accumulation in the cerebrum was shown in three out of seven mice. At the 60th day after the injection, the amount of ganglioside GM1 was above the normal range in all treated mice, which was speculated to be the result of reaccumulation. However, the values were still definitely lower in most of the treated mice than those in untreated mice. In the histopathological study, X-gal-positive cells, which showed the expression of exogenous beta-galactosidase gene, were observed in the brain. It is noteworthy that neonatal administration via blood vessels provided access to the central nervous system because of the incompletely formed blood-brain barrier.
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Affiliation(s)
- N Takaura
- Department of Pediatrics, Osaka City University Graduate School of Medicine, Osaka, Japan
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Xue W, Yoshikawa K, Oshima A, Sato S, Nomura M. Continuous emulsion polymerization of vinyl acetate. II Operation in a single Couette-Taylor vortex flow reactor using sodium lauryl sulfate as emulsifier. J Appl Polym Sci 2002. [DOI: 10.1002/app.11256] [Citation(s) in RCA: 12] [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: 11/09/2022]
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35
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Ueda K, Kawachi I, Nakamura M, Nogami H, Shirokawa N, Masui S, Okayama A, Oshima A. Cigarette nicotine yields and nicotine intake among Japanese male workers. Tob Control 2002; 11:55-60. [PMID: 11891369 PMCID: PMC1747645 DOI: 10.1136/tc.11.1.55] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To analyse brand nicotine yield including "ultra low" brands (that is, cigarettes yielding less-than-or-equal 0.1 mg of nicotine by Federal Trade Commission (FTC) methods) in relation to nicotine intake (urinary nicotine, cotinine and trans-3'-hydroxycotinine) among 246 Japanese male smokers. DESIGN Cross sectional study. SETTING Two companies in Osaka, Japan. SUBJECTS 130 Japanese male workers selected randomly during their annual regular health check up and 116 Japanese male volunteers taking part in a smoking cessation programme. MAIN OUTCOME MEASUREMENTS Subjects answered a questionnaire about smoking habits. Following the interview, each participant was asked to smoke his own cigarette and, after extinguishing it, to blow expired air into an apparatus for measuring carbon monoxide concentration. Urine was also collected for the assays of nicotine metabolites. RESULTS We found wide variation in urinary nicotine metabolite concentrations at any given nicotine yield. Based on one way analysis of variance (ANOVA), the urinary nicotine metabolite concentrations of ultra low yield cigarette smokers were significantly lower compared to smokers of high (p = 0.002) and medium yield cigarettes (p = 0.017). On the other hand, the estimated nicotine intake per ultra low yield cigarette smoked (0.59 mg) was much higher than the 0.1 mg indicated by machine. CONCLUSIONS In this study of Japanese male smokers, actual levels of nicotine intake bore little relation to advertised nicotine yield levels. Our study reinforces the need to warn consumers of inappropriate advertisements of nicotine yields, especially low yield brands.
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Affiliation(s)
- K Ueda
- Master of Public Health Program, Harvard School of Public Health, Boston, Massachusetts, USA.
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36
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Denda K, Oshima A, Fukumori Y. Structural analyses of the deduced amino acid sequences of a novel type heme-copper terminal oxidase, cytochrome aco3, from alkalophilic Bacillus YN-2000. Can J Microbiol 2001; 47:1075-81. [PMID: 11822832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Cytochrome aco3 from a facultatively alkalophilic bacterium, Bacillus YN-2000, was found to be alkaline- and heat-tolerant. To better understand the structural features of Bacillus YN-2000 cytochrome aco3, the gene encoding this enzyme was cloned and sequenced. Nucleotide sequence analyses of the region neighboring the acoI (subunit I) gene revealed that the acoII (subunit II) and acoIII (subunit III) genes were concomitantly clustered upstream and downstream of the acoI gene, respectively, forming an operon with transcriptional polarity. The deduced amino acid sequence of subunit I was highly similar to that of cytochrome caa3 from thermophilic bacterium Bacillus PS3 in which the heme a3 could be replaced with heme o. Furthermore, a marked paucity of basic amino acid residues was found in the cytochrome c-binding subunit II, which might be a result of the adaptation to a highly alkaline external milieu.
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Affiliation(s)
- K Denda
- Department of Biological Sciences, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama, Japan
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37
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Itoh M, Matsuda J, Suzuki O, Ogura A, Oshima A, Tai T, Suzuki Y, Takashima S. Development of lysosomal storage in mice with targeted disruption of the beta-galactosidase gene: a model of human G(M1)-gangliosidosis. Brain Dev 2001; 23:379-84. [PMID: 11578847 DOI: 10.1016/s0387-7604(01)00244-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A deficiency of lysosomal acid beta-galactosidase leads to G(M1)-gangliosidosis in humans, which progressively and profoundly affects the brain and other organs mainly in the early infantile period. We report the pathology of mice with targeted disruption of the beta-galactosidase gene. In the central nervous system, vacuolated neurons appeared in the spinal cord 3 days after birth. The vacuolation extended to neurons in the brainstem, cerebral cortex, hippocampus and thalamus and ballooning neurons became prominent with age. The vacuolation also appeared in Purkinje cells without a marked ballooning change. Reactive astrogliosis in the entire brain was marked at the terminal stage of the disease. Immunohistochemical study using anti-ganglioside G(M1) and G(A1) antibodies revealed extensive accumulation of G(M1) and G(A1) in the cerebral neurons. In the liver, however, accumulation of G(M1) was localized in the cytoplasm of hepatocytes, whereas that of G(A1) was localized in foamy macrophages and Kupffer cells. There were no significant abnormalities in the bone, bone marrow, or cornea at any stage. Although there are some phenotypic and biochemical differences between this knockout mouse and human GM1 gangliosidosis, the mouse will be a useful model for therapeutic trials for the human disease.
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Affiliation(s)
- M Itoh
- Department of Mental Retardation and Birth Defect Research, National Center of Neurology and Psychiatry (NCNP), 4-1-1 Ogawahigashi, Kodaira, 187-8502, Tokyo, Japan.
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38
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Abstract
BACKGROUND Testicular cancer is one of those cancers for which the prognosis has improved remarkably since the introduction of effective chemotherapy. METHODS Study subjects were 709 testicular cancer patients who were registered to the population-based Osaka Cancer Registry (OCR) as diagnosed between 1975 and 1992. The testicular cancer patients diagnosed/treated in the Osaka Medical Center for Cancer and Cardiovascular Diseases (OMCC) were also analyzed for comparison. RESULTS The 5-year relative survival was 75.2% for the total of 709 patients and 77.9% for those diagnosed during 1990-92. These figures were much lower than those for patients in the USA and in Europe. In contrast, the 5-year survival of the 113 patients diagnosed in the OMCC during 1975-93 was 91.5% and similar to those in the USA and in Europe. CONCLUSIONS The present study suggests that there are problems in the speed and extent of diffusion of effective chemotherapy for testicular cancer in Osaka.
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Affiliation(s)
- A Oshima
- Department of Cancer Control and Statistics, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan
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39
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Ioka A, Nakamura M, Shirokawa N, Kinoshita T, Masui S, Imai K, Nakachi K, Oshima A. Natural killer activity and its changes among participants in a smoking cessation intervention program--a prospective pilot study of 6 months' duration. J Epidemiol 2001; 11:238-42. [PMID: 11579933 DOI: 10.2188/jea.11.238] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We examined the effect of smoking cessation on natural killer (NK) activity of peripheral blood lymphocytes in terms of a prospective study of 27 Japanese subjects who participated in a smoking cessation intervention program. This program was delivered by means of group-counseling offering 7 sessions of about 2 hours over 6 months to help smokers to discontinue the habit. Thirteen subjects ceased smoking (quitters), while 14 continued to smoke (cigarette smokers). NK activity before the intervention was correlated positively with age (correlation coefficient=0.46, P<0.05). NK activity remained almost constant among quitters, comparing the activity before and after the intervention, while it decreased among cigarette smokers although it was not statistically significant. In the subgroup analysis, NK activity increased among those aged less than 65 years, or urine cotinine levels over 800 ng/ml before the intervention, especially among quitters, but there were no statistical significances. Multiple regression analysis showed changes in NK activity were correlated significantly only with age (standard regression coefficient=-0.44, P<0.05). These findings suggest that smoking cessation intervention programs might have been more effective for younger than elder subjects in consideration of NK activity.
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Affiliation(s)
- A Ioka
- The Osaka Cancer Prevention and Detection Center, Japan
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40
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Morino Y, Honda Y, Okura H, Oshima A, Hayase M, Bonneau HN, Kuntz RE, Yock PG, Fitzgerald PJ. An optimal diagnostic threshold for minimal stent area to predict target lesion revascularization following stent implantation in native coronary lesions. Am J Cardiol 2001; 88:301-3. [PMID: 11472713 DOI: 10.1016/s0002-9149(01)01646-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Y Morino
- Center for Research in Cardiovascular Interventions, Stanford University Medical Center, Stanford, California 94305-5637, USA
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41
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Tominaga L, Ogawa Y, Taniguchi M, Ohno K, Matsuda J, Oshima A, Suzuki Y, Nanba E. Galactonojirimycin derivatives restore mutant human beta-galactosidase activities expressed in fibroblasts from enzyme-deficient knockout mouse. Brain Dev 2001; 23:284-7. [PMID: 11504597 DOI: 10.1016/s0387-7604(01)00216-9] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Ten low molecular compounds analogous to galactose were screened for inhibition of human beta-galactosidase activity. Among them, 1-deoxy-galactonojirimycin and N-(n-butyl)-deoxy-galactonojirimycin showed an inhibitory effect at high concentrations. However, they restored mutant enzyme activities expressed in enzyme-deficient knockout mouse fibroblasts and human beta-galactosidosis fibroblasts at lower intracellular concentrations. This effect was more remarkable on G(M1)-gangliosidosis mutations (R201C, I51T, R201H, R457Q) than Morquio B disease mutations (W273L, Y83H). These low molecular compounds pass though the blood-brain barrier in mice. We hope that this new therapeutic approach will become clinically applicable in the near future.
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MESH Headings
- 1-Deoxynojirimycin/analogs & derivatives
- 1-Deoxynojirimycin/pharmacology
- Animals
- Cells, Cultured/cytology
- Cells, Cultured/drug effects
- Cells, Cultured/enzymology
- DNA, Complementary/drug effects
- DNA, Complementary/pharmacology
- Fibroblasts/cytology
- Fibroblasts/drug effects
- Fibroblasts/enzymology
- Gangliosidosis, GM1/drug therapy
- Gangliosidosis, GM1/enzymology
- Gangliosidosis, GM1/physiopathology
- Humans
- Mice
- Mice, Knockout/genetics
- Mice, Knockout/metabolism
- Mucopolysaccharidosis IV/drug therapy
- Mucopolysaccharidosis IV/enzymology
- Mucopolysaccharidosis IV/physiopathology
- Mutation/drug effects
- Mutation/physiology
- beta-Galactosidase/antagonists & inhibitors
- beta-Galactosidase/deficiency
- beta-Galactosidase/genetics
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Affiliation(s)
- L Tominaga
- Gene Research Center, Tottori University, 86 Nishimachi, Yonago 683-8503, Japan
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42
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Ajiki W, Kinoshita N, Tsukuma H, Oshima A. Cancer incidence and incidence rates in Japan in 1996: estimates based on data from 10 population-based cancer registries. Jpn J Clin Oncol 2001; 31:410-4. [PMID: 11574637 DOI: 10.1093/jjco/hye083] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- W Ajiki
- Department of Cancer Control and Statistics, Osaka Medical Center for Cancer and Cardiovascular Diseases, Japan.
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43
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Murata M, Kashiwa A, Oshima A, Umino A, Kurachi M, Nishikawa T. Nomifensine-induced c-fos mRNA expression in discrete brain areas of the developing rat. Neurosci Lett 2001; 303:99-102. [PMID: 11311502 DOI: 10.1016/s0304-3940(01)01710-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In rats, the subcutaneous injection of a dopamine uptake inhibitor, nomifensine (40 mg/kg), induced a significant increase in the c-fos mRNA levels in the neocortex on postnatal days 23 and 49, in the striatum on days 8, 14, 23 and 49, and in the hippocampus on day 23, when compared with saline administration. The repeated injection with nomifensine (40 mg/kg once daily) from postnatal days 49 to 53 and from 23 to 27, but not from days 8 to 12 and 14 to 18, resulted in an enhanced stereotypy response elicited by a subsequent challenge of the drug (5 mg/kg) 21 days after the last injection (behavioral sensitization). The present results suggest that the neuronal circuits regulated by nomifensine might undergo regionally-different developmental changes, which could be implicated in the development of behavioral expressions including nomifensine-induced stereotypy sensitization.
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Affiliation(s)
- M Murata
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, 4-1-1, Ogawa-Higashi, Kodaira-shi, 187, Tokyo, Japan
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44
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Okura H, Morino Y, Oshima A, Hayase M, Ward MR, Popma JJ, Kuntz RE, Bonneau HN, Yock PG, Fitzgerald PJ. Preintervention arterial remodeling affects clinical outcome following stenting: an intravascular ultrasound study. J Am Coll Cardiol 2001; 37:1031-5. [PMID: 11263604 DOI: 10.1016/s0735-1097(01)01145-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVES The study was done to elucidate the relationship between baseline arterial remodeling and clinical outcome following stenting. BACKGROUND The impact of preintervention arterial remodeling on subsequent vessel response and clinical outcome has been reported following nonstent coronary interventions. However, in stented segments, the impact of preintervention remodeling on clinical outcome has not been clarified. METHODS Preintervention remodeling was assessed in 108 native coronary lesions by using intravascular ultrasound (IVUS). Positive remodeling (PR) was defined as vessel area (VA) at the target lesion greater than that of average reference segments. Intermediate or negative remodeling (IR/NR) was defined as VA at the target lesion less than or equal to that of average reference segment. Remodeling index expressed as a continuous variable was defined as VA at the target lesion site divided by that of average reference segments. RESULTS Positive remodeling was present in 59 (55%) and IR/NR in 49 (45%) lesions. Although final minimal stent areas were similar (7.76 +/- 1.80 vs. 8.09 +/- 1.90 mm2, p = 0.36), target vessel revascularization (TVR) rate at nine-month follow-up was significantly higher in the PR group (22.0% vs. 4.1%, p = 0.01). By multivariate logistic regression analysis, higher remodeling index was the only independent predictor of TVR (p = 0.02). CONCLUSIONS Lesions with PR before intervention appear to have a worse clinical outcome following IVUS-guided stenting. Intravascular ultrasound imaging before stenting may be helpful to stratify lesions at high risk for accelerated intimal proliferation.
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Affiliation(s)
- H Okura
- Center for Research in Cardiovascular Interventions, Stanford University Medical Center, California 94305-5637, USA
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45
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Oshima A, Miyano H, Yamashita S, Owashi T, Suzuki S, Sakano Y, Higuchi T. Psychological, autonomic and neuroendocrine responses to acute stressors in the combined dexamethasone/CRH test: a study in healthy subjects. J Psychiatr Res 2001; 35:95-104. [PMID: 11377438 DOI: 10.1016/s0022-3956(01)00010-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The combined dexamethasone/CRH test (DEX/CRH test) is reported to produce augmented ACTH and cortisol responses in various psychiatric disorders as well as in some non-psychiatric conditions. To examine whether stress affects the outcome of DEX/CRH test, two stress groups in a repeated measures design were compared to an age-matched control group with regard to the psychological, autonomic and neuroendocrine responses after the combined dexamethasone and CRH challenge. Cold pressor (4 degrees C, total 10 min) produced stronger subjective distress than mental arithmetic (15 min). Cold exposure, but not the mental test, elevated systolic and diastolic blood pressure, whereas the mental test increased pulse rate and skin conductance level more markedly than cold exposure. Neither stressor produced a significantly enhanced response of ACTH and cortisol in DEX/CRH test, and there was no correlation between psychological and neuroendocrine responses. These findings suggest that different stressors induce different patterns of sympathetic activation and that acute stress is unlikely to affect the results of DEX/CRH test.
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Affiliation(s)
- A Oshima
- Department of Neuropsychiatry, Showa University Fujigaoka Hospital, Yokohama, Japan
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46
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Abstract
Dermatophytosis of the external auditory meatus is believed to be a fairly rare disease. In the past three and a half years we have had seven cases of dermatophytosis in the external auditory meatus. All cases except one were associated with tinea of other lesions. Case 1: A 44-year-old man had tinea of the auricle, tinea pedis and tinea unguium. Case 2: A 14-year-old boy, the son of case 1 had no tinea elsewhere on his body, including the auricle. He scratched the auditory meatus with an earpick which his father had used. Case 3: A 62-year-old man had tinea of the auricle, tinea pedis and tinea unguium. Case 4: A 50-year-old man had tinea of the auricle, tinea pedis and tinea unguium. Case 5: A 36-year-old man had tinea of the auricle, tinea pedis, tinea unguium and tinea cruris. Case 6: A 30-year-old woman had tinea of the auricle. Case 7: A 68-year-old man had tinea of the auricle, tinea pedis, tinea unguium and tinea manuum. Endoscopic examination (except for cases 4 and 7) revealed dry cerumen from cartilaginous to bony region of the external auditory meatus. Direct examination using KOH method of the cerumen in all cases demonstrated numerous fungal elements. Fungal cultures identified Trichophyton rubrum except for cases 3 and 6. All cases were successfully treated with oral itraconazole or terbinafine. We suggest that tinea of the external auditory meatus is frequently associated with that of the auricle.
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Affiliation(s)
- N Morishita
- Department of Dermatology, Showa University Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama 227-8501, Japan
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47
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Tsukuma H, Ajiki W, Oshima A. [Time-trends in cancer incidence and mortality in Japan]. Gan To Kagaku Ryoho 2001; 28:137-41. [PMID: 11242634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
The cancer incidence and mortality in Japan are described herein. The total number of deaths from all malignant neoplasms in 1998 was 284,000, corresponding to 30.3% of the total number of deaths among Japanese. Lung was the leading site of cancer deaths (17.9%), followed by the stomach (17.9%), large bowel (12.1%), liver (11.8%), pancreas (6.2%), gallbladder and extrahepatic biliary tract (5.2%), lymphatic tissue (3.7%), esophagus (3.4%), breast (3.1%), prostate (2.4%), leukemia (2.3%) and uterus (1.8%). The stomach was the leading site of cancer deaths until 1997, but was replaced by the lungs in 1998. The age-standardized mortality rates (1975-1998) have increased gradually for males, but decreased slightly for females. The rates have decreased remarkably for the stomach and uterus, while increasing for the lungs, large bowel, female breast, gallbladder and extrahepatic biliary tract, pancreas, and others. The total incidence for all cancers in Japan was estimated to be 454,000 in 1995. The stomach was the leading cancer site (22.2%), followed by the large bowel (17.7%), lung (11.6%), liver (7.8%), breast (6.6%), pancreas (3.7%), gallbladder and extrahepatic biliary tract (3.4%), lymphatic tissue (3.1%) and uterus (2.9%). The age-standardized incidence rates for all sites (1975-1995) have increased gradually for males, while remaining constant for females after a slight increase in the late 1970s. The incidence rates have decreased for the stomach and uterus, but increased for the large bowel, female breast, lung, liver, gallbladder and extrahepatic biliary tract, pancreas, prostate and others. The increase in the incidence rate was prominent for the large bowel, female breast and prostate.
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Affiliation(s)
- H Tsukuma
- Dept. of Cancer Control and Statistics, Osaka Medical Center for Cancer and Cardiovascular Diseases
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48
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Tanaka H, Tsukuma H, Oshima A. [Epidemiology of primary liver cancer in Japan]. Gan To Kagaku Ryoho 2001; 28:151-4. [PMID: 11242637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
In Japan, more than 90% of primary liver cancers consist of hepatocellular carcinoma (HCC), 80% of which is caused by chronic hepatitis C virus (HCV) infection, and the remaining 15% of which is caused by chronic hepatitis B virus (HBV) infection. The proportion of older patients among patients with HCC has been increasing in recent years because of the aging of the HCV-prevalent birth cohort born between 1925 and 1935. The cumulative risk of developing HCC among HCV carriers was estimated as 30% for males and 6% for females. Older age, being male, having a low platelet count, higher histological stage, genotype 1b, co-infection with HBV, heavy drinking and smoking increase the risk of developing HCC among patients with chronic HCV infection. Recent reports on the efficacy of interferon therapy on the incidence of HCC in Japanese patients with chronic hepatitis C demonstrate the importance of providing a screening system for chronic HCV infection and establishing a medical referral system so that patients undergo the appropriate therapy for the Japanese HCV carriers.
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Affiliation(s)
- H Tanaka
- Department of Cancer Control and Statistics, Osaka Medical Center for Cancer and Cardiovascular Diseases, 1-3-3 Nakamichi, Higashinari-ku, Osaka 537-8511, Japan
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49
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50
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Abstract
Male breast cancer is rare. The total number of incidence in Osaka for the period of 1966-95 was 182. Male-to-female ratio for breast cancer incidence was 1:164 in Osaka during this period. Mean age of the male breast cancer incidence was 63.3. The numbers of incidence and the crude incidence rates for male breast cancer have increased during the last 3 decades, while the age-standardized rates have remained constant. The age-specific incidence rates for males showed a gradual increase with age, while those for females showed a steep increase beginning at twenty years of age and a peak around 45-49 or 50-54 years old. The age-standardized incidence rates of male breast cancer were lower in Japan than in European countries and North America, as were those of female breast cancer. Distributions of the histological type and the extent of disease were not significantly different between males and females. Relative 5-year survival for the male breast cancer was, however, lower than that for the female, especially in the "regional" stage and "distant" stage. Further studies on the sex-difference in survival will be mandatory based on high-quality hospital cancer registries' data, which provide detailed information on the clinical stage and treatment.
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Affiliation(s)
- N Tajima
- Community Health Nursing, Osaka Prefectural College of Nursing, Habikino-city, Japan
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