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Abeywickrama H, Koyama Y, Uchiyama M, Wimalasiri S. Assessment Of Associations Between Geriatric Nutrition Risk Index And Sarcopenia In Chronic Kidney Disease Of Unknown Etiology (CKDu) Patients In Sri Lanka. Clin Nutr ESPEN 2023. [DOI: 10.1016/j.clnesp.2022.09.185] [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: 03/29/2023]
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2
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Ikebukuro T, Arima T, Kasamatsu M, Nakano Y, Tobita Y, Uchiyama M, Terashima Y, Toda E, Shimizu A, Takahashi H. Disulfiram Ophthalmic Solution Inhibited Macrophage Infiltration by Suppressing Macrophage Pseudopodia Formation in a Rat Corneal Alkali Burn Model. Int J Mol Sci 2023; 24:ijms24010735. [PMID: 36614177 PMCID: PMC9821574 DOI: 10.3390/ijms24010735] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/27/2022] [Accepted: 12/30/2022] [Indexed: 01/03/2023] Open
Abstract
FROUNT is an intracellular protein that promotes pseudopodia formation by binding to the chemokine receptors CCR2 and CCR5 on macrophages. Recently, disulfiram (DSF), a drug treatment for alcoholism, was found to have FROUNT inhibitory activity. In this study, we investigated the effect of DSF eye drops in a rat corneal alkali burn model. After alkali burn, 0.5% DSF eye drops (DSF group) and vehicle eye drops (Vehicle group) were administered twice daily. Immunohistochemical observations and real-time reverse transcription-polymerase chain reaction (RT-PCR) analyses were performed at 6 h and 1, 4, and 7 days after alkali burn. Results showed a significant decrease in macrophage accumulation in the cornea in the DSF group, but no difference in neutrophils. RT-PCR showed decreased expression of macrophage-associated cytokines in the DSF group. Corneal scarring and neovascularization were also suppressed in the DSF group. Low-vacuum scanning electron microscopy imaging showed that macrophage length was significantly shorter in the DSF group, reflecting the reduced extension of pseudopodia. These results suggest that DSF inhibited macrophage infiltration by suppressing macrophage pseudopodia formation.
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Affiliation(s)
- Toyo Ikebukuro
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8603, Japan
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8603, Japan
| | - Takeshi Arima
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8603, Japan
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8603, Japan
- Correspondence: ; Tel.: +81-3-3822-2131
| | - Momoko Kasamatsu
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8603, Japan
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8603, Japan
| | - Yuji Nakano
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8603, Japan
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8603, Japan
| | - Yutaro Tobita
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8603, Japan
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8603, Japan
| | - Masaaki Uchiyama
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8603, Japan
| | - Yuya Terashima
- Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba 278-0022, Japan
| | - Etsuko Toda
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8603, Japan
- Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba 278-0022, Japan
| | - Akira Shimizu
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8603, Japan
| | - Hiroshi Takahashi
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8603, Japan
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Kasamatsu M, Arima T, Ikebukuro T, Nakano Y, Tobita Y, Uchiyama M, Shimizu A, Takahashi H. Prophylactic Instillation of Hydrogen-Rich Water Decreases Corneal Inflammation and Promotes Wound Healing by Activating Antioxidant Activity in a Rat Alkali Burn Model. Int J Mol Sci 2022; 23:ijms23179774. [PMID: 36077171 PMCID: PMC9455958 DOI: 10.3390/ijms23179774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/20/2022] [Accepted: 08/25/2022] [Indexed: 11/29/2022] Open
Abstract
Many studies have demonstrated the therapeutic effects of hydrogen in pathological conditions such as inflammation; however, little is known about its prophylactic effects. The purpose of this study is to investigate the prophylactic effects of hydrogen-rich water instillation in a rat corneal alkali burn model. Hydrogen-rich water (hydrogen group) or physiological saline (vehicle group) was instilled continuously to the normal rat cornea for 5 min. At 6 h after instillation, the cornea was exposed to alkali. The area of corneal epithelial defect (CED) was measured every 6 h until 24 h after alkali exposure. In addition, at 6 and 24 h after injury, histological and immunohistochemical observations were made and real-time reverse transcription polymerase chain reaction (RT-PCR) was performed to investigate superoxide dismutase enzyme (SOD)1, SOD2, and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) mRNA expression. CED at 12 h and the number of inflammatory infiltrating cells at 6 h after injury were significantly smaller in the hydrogen group than the vehicle group. Furthermore, SOD1 expression was significantly higher in the hydrogen group than the vehicle group at both 6 and 24 h, and the number of PGC-1α-positive cells was significantly larger in the hydrogen group than the vehicle group at 6 h after injury. In this model, prophylactic instillation of hydrogen-rich water suppressed alkali burn-induced inflammation, likely by upregulating expression of antioxidants such as SOD1 and PGC-1α. Hydrogen has not only therapeutic potential but also prophylactic effects that may suppress corneal scarring following injury and promote wound healing.
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Affiliation(s)
- Momoko Kasamatsu
- Department of Ophthalmology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
- Department of Analytic Human Pathology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Takeshi Arima
- Department of Ophthalmology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
- Department of Analytic Human Pathology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
- Correspondence: ; Tel.: +81-3-3822-2131
| | - Toyo Ikebukuro
- Department of Ophthalmology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
- Department of Analytic Human Pathology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Yuji Nakano
- Department of Ophthalmology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
- Department of Analytic Human Pathology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Yutaro Tobita
- Department of Ophthalmology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
- Department of Analytic Human Pathology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Masaaki Uchiyama
- Department of Ophthalmology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
- Department of Analytic Human Pathology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Akira Shimizu
- Department of Analytic Human Pathology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Hiroshi Takahashi
- Department of Ophthalmology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8603, Japan
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Abeywickrama H, Koyama Y, Wimalasiri S, Uchiyama M, Shimizu U, Chandrajith R, Nanayakkara N. Anthropometric changes in chronic kidney disease of unknown etiology (CKDU) patients: a single-center longitudinal study in Sri Lanka. Clin Nutr ESPEN 2021. [DOI: 10.1016/j.clnesp.2021.09.421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Au S, Bellato V, Carvas JM, Córdoba CD, Daudu D, Dziakova J, Eltarhoni K, El Feituri N, Fung ACH, Fysaraki C, Gallo G, Gultekin FA, Harbjerg JL, Hatem F, Ioannidis A, Jakobsen L, Clinch D, Kristensen HØ, Kuiper SZ, Kwok AMF, Kwok W, Millan M, Milto KM, Ng HJ, Pellino G, Picciariello A, Pronin S, van Ramshorst GH, Ramser M, Jiménez-Rodríguez RM, Sainz Hernandez JC, Samadov E, Sohrabi S, Uchiyama M, Wang JHS, Younis MU, Fleming S, Alhomoud S, Mayol J, Moeslein G, Smart NJ, Soreide K, Teh C, Verran D, Maeda Y. Global parental leave in surgical careers: differences according to gender, geographical regions and surgical career stages. Br J Surg 2021; 108:1315-1322. [PMID: 34467970 DOI: 10.1093/bjs/znab275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/24/2021] [Accepted: 07/01/2021] [Indexed: 11/12/2022]
Abstract
BACKGROUND There is a lack of information regarding the provision of parental leave for surgical careers. This survey study aims to evaluate the experience of maternity/paternity leave and views on work-life balance globally. METHODS A 55-item online survey in 24 languages was distributed via social media as per CHERRIES guideline from February to March 2020. It explored parental leave entitlements, attitude towards leave taking, financial impact, time spent with children and compatibility of parenthood with surgical career. RESULTS Of the 1393 (male : female, 514 : 829) respondents from 65 countries, there were 479 medical students, 349 surgical trainees and 513 consultants. Consultants had less than the recommended duration of maternity leave (43.8 versus 29.1 per cent), no paid maternity (8.3 versus 3.2 per cent) or paternity leave (19.3 versus 11.0 per cent) compared with trainees. Females were less likely to have children than males (36.8 versus 45.6 per cent, P = 0.010) and were more often told surgery is incompatible with parenthood (80.2 versus 59.5 per cent, P < 0.001). Males spent less than 20 per cent of their salary on childcare and fewer than 30 hours/week with their children. More than half (59.2 per cent) of medical students did not believe a surgical career allowed work-life balance. CONCLUSION Surgeons across the globe had inadequate parental leave. Significant gender disparity was seen in multiple aspects.
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Affiliation(s)
- S Au
- NHS Education for Scotland, Edinburgh, UK
| | | | | | - C D Córdoba
- University of Lausanne, Lausanne, Switzerland
| | - D Daudu
- Faculty of Health and Medical Sciences, University of Western Australia, Australia
| | - J Dziakova
- Hospital Clinico San Carlos, IDISSC, Madrid, Spain
| | | | | | - A C H Fung
- Department of Surgery, The University of Hong Kong, Hong Kong SAR, China
| | - C Fysaraki
- Urology Department, Mid Yorkshire Hospitals NHS Trust, UK
| | - G Gallo
- Department of Medical and Surgical Sciences, University of Catanzaro, Catanzaro, Italy
| | - F Ayca Gultekin
- General Surgery Department, Zonguldak Bulent, Ecevit University School of Medicine, Zonguldak, Turkey
| | - J L Harbjerg
- Department of Surgery, Research Unit C119, Aarhus University Hospital, Palle Juul-Jensens, Aarhus N, Denmark
| | - F Hatem
- Glasgow Royal Infirmary, Glasgow, UK
| | | | - L Jakobsen
- UiT, The Arctic University of Norway, University Hospital of North Norway, Tromso, Norway
| | - D Clinch
- Department of General Surgery, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - H Ø Kristensen
- Department of Surgery, Research Unit C119, Aarhus University Hospital, Palle Juul-Jensens, Aarhus N, Denmark
| | - S Z Kuiper
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, the Netherlands
| | | | - W Kwok
- Royal Infirmary of Edinburgh, Edinburgh, UK
| | - M Millan
- Coloproctology Unit, Department of Surgery, La Fe University Hospital, Valencia, Spain
| | - K M Milto
- NHS Education for Scotland, Edinburgh, UK
| | - H J Ng
- Royal Alexandra Hospital, NHS Greater Glasgow and Clyde, UK
| | - G Pellino
- Department of Advanced Medical and Surgical Sciences, Università degli Studi della Campania 'Luigi Vanvitelli', Naples, Italy
| | - A Picciariello
- Department of Emergency and Organ Transplantation, University 'Aldo Moro' of Bari, Italy
| | - S Pronin
- College of Medicine and Veterinary Medicine, University of Edinburgh, Edinburgh, UK
| | | | - M Ramser
- Department of Surgery, Solothurner Spitäler SoH, Bürgerspital Solothurn, Solothurn, Switzerland
| | | | - J C Sainz Hernandez
- Instituto Nacional de Ciencias Médicas y Nutrición 'Salvador Zubirán', Mexico City, Mexico
| | - E Samadov
- Surgical Department, LEYLA Medical Centre, Baku, Azerbaijan
| | | | - M Uchiyama
- Showa University School of Medicine, Tokyo, Japan
| | - J H-S Wang
- Australasian Students' Surgical Association, New Zealand
| | - M U Younis
- Mediclinic City Hospital, Dubai, United Arab Emirates
| | - S Fleming
- Barts and the London School of Medicine and Dentistry, London, UK
| | - S Alhomoud
- King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
| | - J Mayol
- Hospital Clinico San Carlos, Instituto de Investigación Sanitaria San Carlos, Universidad Complutense, Madrid, Spain
| | - G Moeslein
- Ev. Bethesda Khs Duisburg, University of Witten, Herdecke, Germany
| | - N J Smart
- Royal Devon & Exeter Hospital & University of Exeter Medical School, Exeter, UK
| | - K Soreide
- Department of Gastrointestinal Surgery, Stavanger University Hospital, Stavanger, Norway
| | - C Teh
- Department of Surgery, Makati Medical Centre, Makati, Philippines.,Department of General Surgery, National Kidney & Transplant Institute, Quezon City, Philippines
| | - D Verran
- Ramsey Health Care, Sydney, Australia
| | - Y Maeda
- Department of Colorectal Surgery, Western General Hospital and University of Edinburgh, Edinburgh, UK
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Sato S, Sugano N, Shiozawa M, Uchiyama M, Kazama K, Kato A, Oshima T, Rino Y, Masuda M. Application and outcomes of a standardized lymphadenectomy in laparoscopic right hemicolectomy requiring ligation of the middle colic artery. Tech Coloproctol 2021; 25:223-227. [PMID: 33459968 DOI: 10.1007/s10151-020-02388-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 12/06/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Complete mesocolic excision with central vessel ligation may be important for accurate staging and improving the prognosis of right-sided colon cancer. Although the procedure is often performed laparoscopically, approaching the middle colic artery (MCA) is technically demanding, especially when complete ligation of arteries at their roots is desired. We standardized our laparoscopic approach by establishing the dissection boundary along the superior mesenteric artery to achieve D3 lymphadenectomy in the region of the MCA. The aim of the present study was to evaluate, on the basis of perioperative and short-term oncologic outcomes, the feasibility and safety of our technique METHODS: We conducted a retrospective study on consecutive patients with cancer located at the ascending colon and transverse colon who had laparoscopic right hemicolectomy requiring ligation of the MCA. RESULTS There were 41 patients (22 males, median age 71 years [range 49-86] years). The median operation time was 285 min, and blood loss volume was 40 mL. Conversion to open surgery was required in 1 case. Complications that were Clavien-Dindo grade III or above occurred in 3 patients (7.3%). There was no anastomotic leakage. The median number of lymph nodes harvested was 46. CONCLUSIONS Our technique was shown to be a safe, feasible, and useful strategy for performance of right hemicolectomy requiring ligation of the MCA in cases of colon cancer. The technique facilitates maximal lymph node dissection. Having obtained favorable outcomes, we look forward to investigation into long-term outcomes.
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Affiliation(s)
- S Sato
- Department of Gastrointestinal Surgery, Kanagawa Cancer Center, Yokohama, Japan. .,Department of Surgery, Yokohama City University, Yokohama, Japan.
| | - N Sugano
- Department of Gastrointestinal Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - M Shiozawa
- Department of Gastrointestinal Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - M Uchiyama
- Department of Gastrointestinal Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - K Kazama
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - A Kato
- Department of Gastrointestinal Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - T Oshima
- Department of Gastrointestinal Surgery, Kanagawa Cancer Center, Yokohama, Japan
| | - Y Rino
- Department of Surgery, Yokohama City University, Yokohama, Japan
| | - M Masuda
- Department of Surgery, Yokohama City University, Yokohama, Japan
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Abeywickrama H, Koyama Y, Wimalasiri S, Uchiyama M, Shimizu U, Chandrajith R, Nanayakkara N. Association between chronic kidney disease of unknown etiology (CKDU) and anthropometric measures and indices: A case-control study in Sri Lanka. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Arima T, Igarashi T, Uchiyama M, Kobayashi M, Ohsawa I, Shimizu A, Takahashi H. Hydrogen promotes the activation of Cu, Zn superoxide dismutase in a rat corneal alkali-burn model. Int J Ophthalmol 2020; 13:1173-1179. [PMID: 32821669 DOI: 10.18240/ijo.2020.08.01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 05/12/2020] [Indexed: 12/23/2022] Open
Abstract
AIM To investigate the effects of hydrogen (H2) on Cu, Zn superoxide dismutase (SOD1) activation in a rat model of corneal alkali burn. METHODS In each rat, one cornea was subjected to alkali exposure. Physiological saline (saline group) or H2-dissolved saline (H2 group) was instilled continuously on the cornea for 5min before and after alkali exposure. Inflammatory cells, neovascularization, and cytoplasmic SOD1 levels were evaluated immunohistochemically in enucleated eyes from both groups. Three-dimensional ultrastructural tissue changes in the eyes were analyzed using low-vacuum scanning electron microscopy. RESULTS The numbers of both inflammatory and vascular endothelial cells were significantly reduced in the corneas of the H2 group (P<0.01). Furthermore, H2 treatment increased both cytoplasmic SOD1 levels (P<0.01) and activity in corneal epithelial cells (P<0.01). Notably, the SOD1 activity level in the H2 group was approximately 2.5-fold greater than that in the saline group. CONCLUSION H2 treatment suppresses inflammation and neovascularization in the injured cornea and indirectly suppresses oxidative insult to the cornea by upregulating the SOD1 enzyme protein level and activity.
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Affiliation(s)
- Takeshi Arima
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8602, Japan.,Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8602, Japan
| | - Tsutomu Igarashi
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8602, Japan
| | - Masaaki Uchiyama
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8602, Japan
| | - Maika Kobayashi
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8602, Japan
| | - Ikuroh Ohsawa
- Biological Process of Aging, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan
| | - Akira Shimizu
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8602, Japan
| | - Hiroshi Takahashi
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8602, Japan
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Harada K, Irisawa R, Ito T, Uchiyama M, Tsuboi R. The effectiveness of dupilumab in patients with alopecia areata who have atopic dermatitis: a case series of seven patients. Br J Dermatol 2020; 183:396-397. [PMID: 32118289 DOI: 10.1111/bjd.18976] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- K Harada
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - R Irisawa
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - T Ito
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - M Uchiyama
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - R Tsuboi
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
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Uchiyama M, Kambe D, Imadera Y, Sunaga H, Hasegawa S, Nogi T, Kajiyama Y, Yoshida S, Ogo H, Uchimura N. 0146 Efficacy and Safety of Single Dose of TS-142, a Novel and Potent Dual Orexin Receptor Antagonist, in Insomnia Patients. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
TS-142 is a novel dual orexin receptor antagonist (DORA) developed for the treatment of insomnia. Here we report its pharmacokinetic profile in the healthy subjects and its efficacy and safety in patients with insomnia.
Methods
A phase1 study was conducted to clarify pharmacokinetic profile, in which various doses of TS-142 (1–30 mg) were orally administered once to thirty two healthy subjects. Subsequently, a phase 2a study utilizing polysomnography (PSG) was carried out in patients with primary insomnia, in which 5, 10, or 30 mg of TS-142, or placebo was randomly administered in a double-blind manner. Karolinska Sleepiness Scale (KSS) and Digit Symbol Substitution Test (DSST) were also examined in the morning after PSG.
Results
Following single administration of TS-142, plasma concentration of unchanged compound reached maximum within 2.50 h (median), and then eliminated rapidly, giving mean elimination half-life between 1.32 and 3.25 h. Twenty-three patients with insomnia completed the Phase2a study. Both latency to persistent sleep (LPS) and wake after sleep onset (WASO) were significantly improved with TS-142 at all doses, in comparison with placebo (-42, -42 and -45 for LPS [min] and -28, -35 and -55 for WASO [min] in 5, 10, 30 mg, respectively). KSS and DSST administered in the morning indicated no serious hangover effects. No serious adverse events were observed in these trials.
Conclusion
The phase 1 trial showed favorable pharmacokinetic profiles. The phase 2a trial demonstrated that TS-142 was efficacious in objective sleep onset and maintenance with minimal next-day residual effects. TS-142 was generally well tolerated in both studies.
Support
Taisho Pharmaceutical. Co., Ltd.
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Affiliation(s)
- M Uchiyama
- Nihon University School of Medicine, Tokyo, JAPAN
| | - D Kambe
- Taisho Pharmaceutical Co., LTD, Tokyo, JAPAN
| | - Y Imadera
- Taisho Pharmaceutical Co., LTD, Tokyo, JAPAN
| | - H Sunaga
- Taisho Pharmaceutical Co., LTD, Tokyo, JAPAN
| | - S Hasegawa
- Taisho Pharmaceutical Co., LTD, Tokyo, JAPAN
| | - T Nogi
- Taisho Pharmaceutical Co., LTD, Tokyo, JAPAN
| | - Y Kajiyama
- Taisho Pharmaceutical Co., LTD, Tokyo, JAPAN
| | - S Yoshida
- Taisho Pharmaceutical Co., LTD, Tokyo, JAPAN
| | - H Ogo
- Taisho Pharmaceutical Co., LTD, Tokyo, JAPAN
| | - N Uchimura
- Kurume University School of Medicine, Fukuoka, JAPAN
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11
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Arima T, Uchiyama M, Shimizu A, Takahashi H. Observation of Corneal Wound Healing and Angiogenesis Using Low-Vacuum Scanning Electron Microscopy. Transl Vis Sci Technol 2020; 9:14. [PMID: 32821511 PMCID: PMC7408877 DOI: 10.1167/tvst.9.6.14] [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: 11/27/2019] [Accepted: 03/18/2020] [Indexed: 11/24/2022] Open
Abstract
Purpose Wound healing processes in a rat corneal alkali burn model were observed using low-vacuum scanning electron microscopy (LV-SEM), a new observation method that can use paraffin sections for light microscopic immunostaining. Methods Injured cornea was observed under immunohistochemistry, LV-SEM, and transmission electron microscopy. In LV-SEM, periodic acid-methenamine silver staining was used to observe collagen and platinum blue staining was used to observe vascular endothelial cells. Analyses of the messenger RNA expression involved in neovascularization processes after wound creation were also performed. Results LV-SEM depicted progression of corneal wound healing in a stereoscopic fashion. In neovascularization processes after wound creation, LV-SEM with osmification clearly demonstrated detachment of pericytes from the vascular endothelial cells, in association with up-regulation of angiopoietin-2 messenger RNA expression. Conclusions LV-SEM enables high magnification observation of paraffin sections used for immunohistochemistry. LV-SEM provides easy, detailed observations and offers a promising new observational modality in the field of ophthalmology. Translational Relevance High magnification analysis was easily available using LV-SEM with conventional paraffin sections for light microscopy.
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Affiliation(s)
- Takeshi Arima
- Department of Ophthalmology, Nippon Medical School, Tokyo, Japan.,Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan
| | - Masaaki Uchiyama
- Department of Ophthalmology, Nippon Medical School, Tokyo, Japan.,Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan
| | - Akira Shimizu
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan
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Ikeda T, Sunami K, Huang SY, Wang MC, Koh Y, Min C, Yeh SP, Matsumoto M, Uchiyama M, Iyama S, Shimazaki C, Lee J, Kim K, Kaneko H, Kim J, Lin TL, Campana F, Tada K, Iida S, Suzuki K. Efficacy and safety of isatuximab plus pomalidomide and dexamethasone in East Asian patients with relapsed/refractory multiple myeloma: A subgroup analysis of ICARIA-MM study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz427.003] [Citation(s) in RCA: 4] [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: 11/13/2022] Open
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Kijima M, Shirakawa T, Uchiyama M, Kawanishi M, Ozawa M, Koike R. Trends in the serovar and antimicrobial resistance in clinical isolates of Salmonella enterica from cattle and pigs between 2002 and 2016 in Japan. J Appl Microbiol 2019; 127:1869-1875. [PMID: 31461201 DOI: 10.1111/jam.14431] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 08/12/2019] [Accepted: 08/14/2019] [Indexed: 11/29/2022]
Abstract
AIMS Given the significance of Salmonella enterica in both human and animal health, and a recent global dissemination of Salmonella 4,[5],12:i:-, changes in the prevalent serovars and antimicrobial resistance in clinical isolates of Salmonella from cattle and pigs were investigated in Japan. METHODS AND RESULTS The serovars and antimicrobial susceptibilities of 1605 Salmonella enterica isolated from cattle (n = 894) and swine (n = 711) between 2002 and 2016 were examined. The most common serovar among all samples was Salmonella Typhimurium. However, its monophasic variant with antigenic structure S. 4,[5],12:i:-, which was first detected in cattle in 2006 and swine in 2010, has been rapidly increasing in incidence and resistance. Resistance rates to cefotaxime and ciprofloxacin were generally low (<10% in the cattle isolates and <5% in the swine isolates); however, isolates resistant to more than five antimicrobials, which often include these antimicrobials, were recently detected in Salmonella Dublin, S. 4,[5],12:i:-, S. Typhimurium, Salmonella Newport, Salmonella Choleraesuis and Salmonella 6,7:c:-. Among them, two S. 4,[5],12:i:- isolates possessed extended-spectrum β-lactamase-encoding genes; blaSHV-12 or blaCTX-M-55 , respectively, while all the five S. Typhimurium isolates possessed AmpC-type β-lactamase gene of blaCMY-2 . CONCLUSIONS S. 4,[5],12:i:- has been rapidly increasing and exhibiting a remarkable change in antimicrobial resistance in Japan. Considering certain serovars are characterized by multidrug resistance including medically important antimicrobials, continuous monitoring and appropriate measures are required to protect public health and veterinary husbandry. SIGNIFICANCE AND IMPACT OF THE STUDY This study presents a trend in the serovars and antimicrobial resistance in clinical isolates of Salmonella from cattle and pigs in Japan, and showed that there were certain types of Salmonella serovars depending on the animal origin which needs more attention.
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Affiliation(s)
- M Kijima
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1, Tokura, Kokubunji, 185-8511, Japan
| | - T Shirakawa
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1, Tokura, Kokubunji, 185-8511, Japan
| | - M Uchiyama
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1, Tokura, Kokubunji, 185-8511, Japan
| | - M Kawanishi
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1, Tokura, Kokubunji, 185-8511, Japan
| | - M Ozawa
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1, Tokura, Kokubunji, 185-8511, Japan
| | - R Koike
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1, Tokura, Kokubunji, 185-8511, Japan
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14
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Mitobe Y, Koyama Y, Sakai S, Uchiyama M, Abeywickrama H, Yamada E, Ohashi K, Kikuchi Y, Nitta M, Honda T, Endoh H. PT01.6: Sketetal Muscle Index at ICU (Intensive Care Unit) Admission is Valid for Predicting the Progression of ICU-Acquired Weakness (ICU-AW) for Septic Patients. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32546-4] [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: 11/25/2022]
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15
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Nakano Y, Uchiyama M, Arima T, Nagasaka S, Igarashi T, Shimizu A, Takahashi H. PPARα Agonist Suppresses Inflammation after Corneal Alkali Burn by Suppressing Proinflammatory Cytokines, MCP-1, and Nuclear Translocation of NF-κB. Molecules 2018; 24:molecules24010114. [PMID: 30597991 PMCID: PMC6337747 DOI: 10.3390/molecules24010114] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/24/2018] [Accepted: 12/24/2018] [Indexed: 11/26/2022] Open
Abstract
We investigated the effect of a peroxisome proliferator-activated receptor α (PPARα) agonist after corneal alkali injury. Fenofibrate 0.05% (PPARα agonist group) or vehicle (Vehicle group) was topically instilled onto the rat cornea after injury. Histological, immunohistochemical, and real-time reverse transcription PCR analyses were performed. PPARα-positive cells were observed among basal cells of the corneal epithelium in normal and alkali-burned corneas. The number of infiltrating neutrophils and macrophages at the corneal limbus was lower in the PPARα agonist group. Interleukin-1β (IL-1β), IL-6, IL-8, monocyte chemoattractant protein-1 (MCP-1), and vascular endothelial growth factor-An mRNA expression was suppressed in the PPARα agonist group compared to the Vehicle group. mRNA levels of nuclear factor kappa B (NF-κB) in corneal tissue were not different. However, NF-κB was expressed in the cytoplasm of basal cells in the PPARα agonist group and in the nucleus in the Vehicle group. MCP-1 was more weakly expressed in the PPARα agonist group. The PPARα agonist inhibited inflammation during the early phase after injury. Anti-inflammatory effects of the PPARα agonist included prevention of up-regulation of proinflammatory cytokines and MCP-1, and prevention of inflammatory cell infiltration into the injured cornea. Thus, a PPARα agonist may be a promising treatment for corneal injury.
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Affiliation(s)
- Yuichiro Nakano
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8603, Japan.
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8602, Japan.
| | - Masaaki Uchiyama
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8603, Japan.
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8602, Japan.
| | - Takeshi Arima
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8603, Japan.
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8602, Japan.
| | - Shinya Nagasaka
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8602, Japan.
| | - Tsutomu Igarashi
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8603, Japan.
| | - Akira Shimizu
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo 113-8602, Japan.
| | - Hiroshi Takahashi
- Department of Ophthalmology, Nippon Medical School, Tokyo 113-8603, Japan.
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16
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Yin E, Uchiyama M, Jin X, Kawai K, Takao M, Niimi M. More Hippocampal Weight and Cells in Cardiac Allograft Transplanted Mice. Transplant Proc 2018; 50:2798-2803. [PMID: 30401400 DOI: 10.1016/j.transproceed.2018.03.107] [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] [Received: 01/12/2018] [Revised: 02/27/2018] [Accepted: 03/15/2018] [Indexed: 10/17/2022]
Abstract
The hippocampus is a brain structure that plays a fundamental role in memory and learning. Many animal studies have demonstrated that the structure of the hippocampus has evolved through exercise and play. However, little is known on the relationship between the brain and immunological reaction. In this study, we investigated the correlation between the weight of the hippocampus and transplant immunology in a murine heart transplant model. Fully vascularized heterotopic hearts from CBA (H2k, allogeneic group) or C57BL/6 (H2b, syngeneic group) donors were transplanted into C57BL/6 recipients by using microsurgical techniques. The weights of the whole brain and hippocampus from syngeneic and allogeneic groups were recorded 1, 2, and 4 weeks after grafting, and histologic assessments were performed. The syngeneic group maintained beating cardiac grafts for over 30 days, but the allogeneic group rejected CBA cardiac allografts acutely within 8 days. The average weight of whole brain from syngeneic and allogeneic group 1, 2, and 4 weeks had no significant differences. However, the average weight of hippocampus at 2 and 4 weeks was considerably increased in the allogeneic group compared with the syngeneic group. Histologic assessments with hematoxylin-eosin and Kluver-Barrera staining of hippocampus from allogeneic group 1 week after grafting demonstrated a greater number of granule and pyramidal cells in the hippocampus. Alloimmune responses in our model increase the weight of hippocampus.
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Affiliation(s)
- E Yin
- Department of Surgery, Teikyo University, Tokyo, Japan; Department of Cardiovascular Surgery, the 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - M Uchiyama
- Department of Surgery, Teikyo University, Tokyo, Japan; Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom.
| | - X Jin
- Department of Surgery, Teikyo University, Tokyo, Japan; Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - K Kawai
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - M Takao
- Department of Neurology, Saitama International Medical Center, Saitama Medical College, Saitama, Japan
| | - M Niimi
- Department of Surgery, Teikyo University, Tokyo, Japan
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17
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Yin E, Hara M, Uchiyama M, Niimi M. Graft Protective Effect of HMG-CoA Reductase Inhibitor Pravastatin in Murine Cardiac Allograft Transplantation. Transplant Proc 2018; 50:2804-2806. [PMID: 30401401 DOI: 10.1016/j.transproceed.2018.05.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 03/16/2018] [Accepted: 05/30/2018] [Indexed: 11/17/2022]
Abstract
The HMG-CoA reductase inhibitor (statin), which reduces serum cholesterol, has been demonstrated in the control of immune responses and may potentially play an important role in the regulation of acute and chronic rejection in organ transplantations. We investigated the graft-protective effect of a kind of statin, pravastatin, in the survival of fully major histocompatibility complex--mismatched murine cardiac allograft transplantation. Fully vascularized heterotopic hearts from C57BL/6 donors were transplanted into CBA recipients through microsurgical techniques. CBA recipients transplanted with a C57BL/6 heart received oral administration of 40, 120, or 400 μg/kg/day of pravastatin from the day of transplantation to 7 days afterward. Immunohistochemical staining studies were performed to determine whether intimal formation of coronary arteries in the transplanted cardiac allografts was preserved and also to conduct morphometric analysis. Untreated CBA recipients rejected C57BL/6 cardiac grafts acutely (median survival time [MST] 7 days). CBA recipients exposed with 40 and 120 μg/kg/day of pravastatin had a small prolonged allograft survival (MSTs of 10 and 9 days, respectively). However, the MST of CBA recipients exposed to 400 μg/kg/day of pravastatin was significantly effective for allograft survival (MST 50 days). Immunohistochemical staining assessments on 4 weeks after grafting showed suppression of intimal hyperplasia in allograft coronary arteries. Pravastatin could induce the prolongation of fully major histocompatibility complex--mismatched cardiac allograft through the protection of the coronary artery.
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Affiliation(s)
- E Yin
- Department of Surgery, Teikyo University, Tokyo, Japan; Department of Cardiovascular Surgery, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - M Hara
- Department of Cardiovascular Surgery, Teikyo University, Tokyo, Japan
| | - M Uchiyama
- Department of Surgery, Teikyo University, Tokyo, Japan; Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom.
| | - M Niimi
- Department of Surgery, Teikyo University, Tokyo, Japan
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18
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Yin E, Matsuyama S, Uchiyama M, Kawai K, Hara M, Imazuru T, Kono M, Niimi M. Administration of Thrombomodulin (CD141) Could Improve Cardiac Allograft Survival in Mice. Transplant Proc 2018; 50:2794-2797. [PMID: 30401399 DOI: 10.1016/j.transproceed.2018.02.204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 02/19/2018] [Indexed: 11/28/2022]
Abstract
Thrombomodulin (TM) is a promising natural anti-coagulant therapeutic protein that is effective in the treatment of disseminated intravascular coagulation. However, the mechanisms by which TM on micro-vessels enable the regulation of intimal hyperplasia remain elusive. We investigated the graft-protective effects of TM in a fully major histocompatibility complex-mismatched murine cardiac allograft transplantation model. CBA recipients transplanted with a C57BL/6 heart received intraperitoneal administration of 0.2, 2.0, and 20.0 μg/day of TM for 8 days. Histological staining was conducted to assess the degree of inflammation and infiltration in the transplanted cardiac grafts. Untreated CBA recipients rejected C57BL/6 cardiac grafts acutely (median survival time [MST] was 7 days). CBA recipients exposed to the above dosages had significantly prolonged allograft survival (MSTs were 16, 21, and 37.5 days, respectively). Histologic assessments from TM-exposed recipients 2 weeks after grafting showed that the myocardium and vessel structure in their allografts were clearly preserved, and that the infiltration of inflammatory cells around coronary arteries was suppressed. TM can induce the prolongation of fully major histocompatibility complex-mismatched cardiac allograft by exerting graft protective effects within the myocardium and coronary arteries.
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Affiliation(s)
- E Yin
- Department of Surgery, Teikyo University, Tokyo, Japan; Department of Cardiovascular Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - S Matsuyama
- Department of Cardiovascular Surgery, Teikyo University, Tokyo, Japan; Department of Cardiovascular Surgery, New Tokyo Hospital, Chiba, Japan
| | - M Uchiyama
- Department of Surgery, Teikyo University, Tokyo, Japan; Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom.
| | - K Kawai
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
| | - M Hara
- Department of Cardiovascular Surgery, Teikyo University, Tokyo, Japan
| | - T Imazuru
- Department of Cardiovascular Surgery, Teikyo University, Tokyo, Japan
| | - M Kono
- Department of Surgery, Teikyo University, Tokyo, Japan
| | - M Niimi
- Department of Surgery, Teikyo University, Tokyo, Japan
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19
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Koyama Y, Yamada E, Saito R, Takanarita R, Ohnuma A, Okuda A, Hirasawa Y, Iijima A, Fujimori M, Onoma N, Uchiyama M. Subjective taste difference between Japanese and Sri Lankan students: Effect of food composition, nationality and serum zinc level. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Suzuki M, Yoshiike N, Yoshita K, Arai Y, Uchiyama M. 0352 Seasonal Changes in Sleep Duration and Sleep Problems: A Prospective Study in Japanese Community Residents. Sleep 2018. [DOI: 10.1093/sleep/zsy061.351] [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: 11/14/2022] Open
Affiliation(s)
- M Suzuki
- Department of Psychiatry, Nihon University School of Medicine, Tokyo, JAPAN
| | - N Yoshiike
- Department of Nutrition, Faculty of Health Sciences, Aomori University of Health and Welfare, Aomori, JAPAN
| | | | - Y Arai
- Chiba Prefectural University of Health Sciences, Chiba, JAPAN
| | - M Uchiyama
- Department of Psychiatry, Nihon University School of Medicine, Tokyo, JAPAN
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21
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Kuriyama K, Suzuki M, Kadotani H, Yoshimura A, Yoshinaka H, Yamanaka M, Tsuboi H, Ueda T, Mori A, Kashiwagi K, Yoshida M, Omori T, Kutsumi H, Uchiyama M, Yamada N. 0972 Practical Use Of A Single Channel Sleep EEG For Diagnosis Of Major Depressive Disorder - Multicenter Exploratory Prospective Study (SEEDs) -. Sleep 2018. [DOI: 10.1093/sleep/zsy061.971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Kuriyama
- Department of Psychiatry, Shiga University of Medical Science, Otsu, JAPAN
| | - M Suzuki
- Department of Psychiatry, Nihon University of Medicine, Itabashi, JAPAN
| | - H Kadotani
- Department of Sleep and Behavioral Science, Shiga University of Medical Science, Otsu, JAPAN
| | - A Yoshimura
- Department of Psychiatry, Shiga University of Medical Science, Otsu, JAPAN
| | - H Yoshinaka
- Clinical Research Development Center, University of Medical Science Hospital, Otsu, JAPAN
| | - M Yamanaka
- Clinical Research Development Center, University of Medical Science Hospital, Otsu, JAPAN
| | - H Tsuboi
- Clinical Research Development Center, University of Medical Science Hospital, Otsu, JAPAN
| | - T Ueda
- Clinical Research Development Center, University of Medical Science Hospital, Otsu, JAPAN
| | - A Mori
- Center of Clinical Research, Kobe University Hospital, Kobe, JAPAN
| | | | | | - T Omori
- Center of Clinical Research, Kobe University Hospital, Kobe, JAPAN
| | - H Kutsumi
- Clinical Research Development Center, University of Medical Science Hospital, Otsu, JAPAN
| | - M Uchiyama
- Department of Psychiatry, Nihon University of Medicine, Itabashi, JAPAN
| | - N Yamada
- Department of Psychiatry, Shiga University of Medical Science, Otsu, JAPAN
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22
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Yin E, Uchiyama M, Niimi M. Induction of Regulatory CD4 + Cells and Prolongation of Fully Major Histocompatibility Complex Mismatched Murine Cardiac Allograft by Shigyakusan. Transplant Proc 2018; 50:274-282. [PMID: 29407322 DOI: 10.1016/j.transproceed.2017.12.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 11/19/2017] [Accepted: 12/12/2017] [Indexed: 11/16/2022]
Abstract
Shigyakusan (also known as Tsumura Japan [TJ]-35) is composed of peony, bitter orange, licorice, and Bupleuri radix is used for cholecystitis and gastritis as an anti-inflammatory agent. We investigated the effect of TJ-35 on alloimmune response in a murine heart transplantation model. CBA mice that underwent transplantation of a C57BL/6 (B6) heart were assigned to four groups: no treatment, TJ-35-exposed, each component-exposed, or each component missing-exposed. The four groups above each received oral administration of TJ-35, each component, or TJ-35 with each component missing from the day of transplantation until 7 days, respectively. Untreated CBA recipients rejected B6 cardiac grafts acutely (median survival time [MST], 7 days). TJ-35-exposed CBA recipients had significantly prolonged B6 allograft survival (MST, 20.5 days). However, MSTs of CBA recipients that had been administered each component and TJ-35 with each component missing did not reach that of TJ-35-exposed recipients. Adoptive transfer of CD4+ splenocytes from TJ-35-exposed primary allograft recipients resulted in significant prolonged allograft survival in naïve secondary recipients (MST, 63 days). Flow cytometry studies showed that the percentage of CD4+CD25+Foxp3+ cell population was increased in TJ-35-exposed CBA recipients. In conclusion, TJ-35-induced prolongation of fully allogeneic cardiac allografts and may generate regulatory CD4+CD25+Foxp3+ cells in our model. The effect seemed to require all components of TJ-35.
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Affiliation(s)
- E Yin
- Department of Surgery, Teikyo University, Tokyo, Japan; Department of Cardiovascular Surgery, the 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - M Uchiyama
- Department of Surgery, Teikyo University, Tokyo, Japan.
| | - M Niimi
- Department of Surgery, Teikyo University, Tokyo, Japan
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23
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Harada K, Maeda T, Matsubayashi J, Uchiyama M, Irisawa R, Go K, Tsuboi R. Centrifugal lipodystrophy of the scalp manifesting as centrifugal lipodystrophic alopecia. Clin Exp Dermatol 2017; 43:286-290. [PMID: 29266423 DOI: 10.1111/ced.13328] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2017] [Indexed: 11/29/2022]
Abstract
Centrifugal lipodystrophy (CLD), characterized by a depressed lesion in the abdominal skin, is a chronic disease occurring more often among younger patients of East Asian descent. We present an extremely unusual case of CLD of the scalp associated with reversible hair loss. The patient demonstrated alopecia in the frontal, temporal and occipital areas of the scalp, which connected to form a ring-shaped area of hair loss. Curiously, the area of hair loss gradually expanded outwards while the central region showed normal hair regrowth. Immunohistochemical analysis demonstrated reduced expression of leptin, an adipokine capable of inducing the anagen phase of the hair cycle, in the adipose tissue, associated with active inflammation. By contrast, recovery of leptin expression was observed at sites of healed inflammatory lesions, suggesting that reversible hair loss might be caused by a change in leptin expression in adipose tissue.
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Affiliation(s)
- K Harada
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - T Maeda
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - J Matsubayashi
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan
| | - M Uchiyama
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - R Irisawa
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - K Go
- Dermatology GO Clinic, Tokyo, Japan
| | - R Tsuboi
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
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Kuriyama K, Suzuki M, Kadotani H, Yoshinaka H, Yamanaka M, Omori T, Mori A, Tsuboi H, Ueda T, Kashiwagi K, Yoshimura A, Yoshiike T, Takahashi M, Matsuo M, Morita S, Takami M, Fujii Y, Nakabayashi T, Yoshida M, Kutsumi H, Uchiyama M, Yamada N. A research project aimed at developing practical use of sleep EEG for diagnosis of major depressive disorder: multicenter exploratory prospective study. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.508] [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: 10/18/2022]
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25
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Miyamoto K, Yamashita J, Narita S, Sakai Y, Hirano K, Saito T, Wang C, Ochiai M, Uchiyama M. Iodoarene-catalyzed oxidative transformations using molecular oxygen. Chem Commun (Camb) 2017; 53:9781-9784. [DOI: 10.1039/c7cc05160c] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular oxygen serves as an oxidant for the glycol scission of diols and the Hofmann rearrangement of amides using an iodoarene catalyst.
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Affiliation(s)
- K. Miyamoto
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - J. Yamashita
- Graduate School of Pharmaceutical Sciences
- University of Tokushima
- Tokushima 770-8505
- Japan
| | - S. Narita
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Y. Sakai
- Graduate School of Pharmaceutical Sciences
- University of Tokushima
- Tokushima 770-8505
- Japan
| | - K. Hirano
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - T. Saito
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - C. Wang
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - M. Ochiai
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - M. Uchiyama
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
- Tokyo 113-0033
- Japan
- Advanced Elements Chemistry Research Team
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26
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Fukuhara A, Tsujita T, Sase K, Konno A, Nakagawa A, Endo T, Tominaga T, Jiang X, Abiko S, Uchiyama M. Securing an optimum operating field without undesired tissue damage in neurosurgery. Adv Robot 2016. [DOI: 10.1080/01691864.2016.1200483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Abstract
In controlling manipulators interacting with the external en vironment, an important role is played by the force/torque sensors. In recent years, a number of constructs for such sen sors have been proposed, and some criteria for their evaluation have been introduced. This article presents a systematic analy sis of force sensors at the design stage, which has not been undertaken in the literature. A generalized model of the sensors is developed on the basis of static and kinematic equations, and a block form of the resulting strain compliance matrix of the sensor is obtained. The model developed is then applied to the analysis of two- and three-dimensional sensor schemes cor responding to regular polygons and polyhedrons, respectively. The condition number of the normalized strain compliance matrix of the sensor is used as a performance index. The im possibility of reaching the optimal values of this criterion is stated for the regular polygon form-based sensors. Partial solutions of the optimization problem are found out for the reg ular polyhedron form—based sensors. The presentation of the material is illustrated by analytical examples.
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Affiliation(s)
- M.M. Svinin
- Aeronautics and Space Engineering Department Tohoku University Aramaki-aza-Aoba, Aoba-ku, Sendai 980-77, Japan
| | - M. Uchiyama
- Aeronautics and Space Engineering Department Tohoku University Aramaki-aza-Aoba, Aoba-ku, Sendai 980-77, Japan
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28
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Abstract
In this paper, the authors develop a method for singularity- consistent teleoperation of nonredundant slave arms under a Cartesian-space velocity control mode. The theoretical base is a parameterized autonomous system, which is obtained through a virtual instantaneous closure of the kinematic chain. The au thors discuss several implementation issues, among them the need of shared control at certain singularities. Results from an experi mental study are also provided.
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Affiliation(s)
- D.N. Nenchev
- Department of Aeronautics and Space Engineering Tohoku University Sendai 980-77, Japan
| | - Y. Tsumaki
- Department of Aeronautics and Space Engineering Tohoku University Sendai 980-77, Japan
| | - M. Uchiyama
- Department of Aeronautics and Space Engineering Tohoku University Sendai 980-77, Japan
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Masuda J, Ozaki Y, Nakajima H, Oki R, Uchiyama M, Koganemaru S, Ogura T, Tamura N, Miura Y, Tanabe Y, Miura D, Kawabata H, Takano T. 104P Feasibility of dose-dense doxorubicin and cyclophosphamide (ddAC) followed by taxane (T) in Japanese women with early breast cancer: A retrospective study. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv519.53] [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: 11/12/2022] Open
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30
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Hirai T, Iguchi Y, Uchiyama M, Kuroiwa Y, Nakamura I, Yokota S, Nishioka K. Single photon emission computed tomography findings after human papillomavirus (HPV) vaccination in Japan. Auton Neurosci 2015. [DOI: 10.1016/j.autneu.2015.07.407] [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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31
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Ribierre JC, Zhao L, Furukawa S, Kikitsu T, Inoue D, Muranaka A, Takaishi K, Muto T, Matsumoto S, Hashizume D, Uchiyama M, André P, Adachi C, Aoyama T. Ambipolar organic field-effect transistors based on solution-processed single crystal microwires of a quinoidal oligothiophene derivative. Chem Commun (Camb) 2015; 51:5836-9. [PMID: 25686576 DOI: 10.1039/c4cc09608h] [Citation(s) in RCA: 26] [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: 11/21/2022]
Abstract
A simple and versatile solution-processing method based on molecular self-assembly is used to fabricate organic single crystal microwires of a low bandgap quinoidal oligothiophene derivative. Individual single crystal microwire transistors present well-balanced ambipolar behaviour with hole and electron mobilities as high as 0.4 and 0.5 cm(2) V(-1) s(-1), respectively.
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Affiliation(s)
- J C Ribierre
- Kyushu University, Center for Organic Photonics and Electronics Research (OPERA), Fukuoka 819-0395, Japan.
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Affiliation(s)
- Hiroshi Abe
- Department of Plant Protection, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo 183, Japan
| | - Tadashi Morishita
- Department of Plant Protection, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo 183, Japan
| | - Masaaki Uchiyama
- Department of Plant Protection, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo 183, Japan
| | - Suguru Takatsuto
- Department of Plant Protection, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo 183, Japan
| | - Nobuo Ikekawa
- Department of Plant Protection, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo 183, Japan
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34
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Ando T, Kurotsu Y, Uchiyama M. High Performance Liquid Chromatographic Separation of the Stereoisomers of Natural Pyrethrins and Related Compounds. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/00021369.1986.10867407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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37
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38
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Yoshida Y, Aisu N, Tanimura S, Hoshino S, Ogata K, Uchiyama M, Hara S, Mogi A, Takamatsu Y, Hirata K, Tamura K, Mishima H, Yamashita Y. Chemotherapy for Dihydropyrimidine Dehydrogenase-Deficient Patient. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu358.39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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39
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Jin X, Uchiyama M, Zhang Q, Harada T, Otsuka K, Shimokawa T, Niimi M. Effect of 34 kinds of traditional Japanese herbal medicines on prolongation of cardiac allograft survival. Transplant Proc 2014; 46:1175-9. [PMID: 24815154 DOI: 10.1016/j.transproceed.2014.01.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 12/27/2013] [Accepted: 01/13/2014] [Indexed: 11/24/2022]
Abstract
Herbal medicines have been used for over 3,000 years in Asian as alternative therapy for their variety effects and have recently become popular in Europe and the United States. In the last 30 years, Japanese herbal medicines were widely used for treatment of diseases after been recognized officially by Japanese government. In this study, we investigated the effect of 34 kinds of traditional Japanese herbal medicines on alloimmune responses in a murine model of cardiac allograft transplantation. CBA mice (H2(k)) underwent transplantation of a C57BL/6 (H2(b)) heart and received oral administration of 2 g/kg/d of the 34 kinds of herbal medicines from the day of transplantation until 7 days afterward. Naïve CBA mice rejected B6 cardiac grafts acutely (median survival time [MST], 7 days). CBA transplant recipients given 2 g/kg/d of Sairei-to (TJ-114) and Tokishakuyaku-san (TJ-23) had prolonged C57BL/6 allograft survival indefinitely (both MSTs > 100 days). Moreover, CBA transplant recipients given Seisinrensiin (TJ-111), Tokishigyakukagoshuyushokyoto (TJ-38), Rikkunshito (TJ-43), Maobushisaishinto (TJ-127), Ninjin-yoei-to (TJ-108), Ryokan-kyomi-shinge-nin-to (TJ-119), Inchingorei-san (TJ-117), Hochuekkito (TJ-41), Kihi-to (TJ-65), and Sinbu-to (TJ-30) had also prolonged C57BL/6 allograft survival significantly (MSTs of 28, 22, 16, 14, 14, 13, 12, 9.5, 9 and 9 days, respectively). However, none of other 22 kinds of herbal medicines could prolong the allograft survival. Furthermore, oral administration of 2 g/kg/d of Daikenchuto (TJ-100) induced sudden death (within 1 minute) in CBA mice. In conclusion, 12 kinds of Japanese herbal medicines prolonged allograft survival and one showed toxic effect in mice.
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Affiliation(s)
- X Jin
- Department of Surgery, Teikyo University, Tokyo, Japan; Department of Cardiovascular and Thoracic Surgery, the 4th Affiliated Hospital of Harbin Medical University, Harbin, China
| | - M Uchiyama
- Department of Surgery, Teikyo University, Tokyo, Japan; Department of Cardiovascular Surgery, Teikyo University, Tokyo, Japan
| | - Q Zhang
- Department of Surgery, Teikyo University, Tokyo, Japan; Department of Dermatology, Huashan Hospital of Fudan University, Shanghai, China
| | - T Harada
- Department of Cardiovascular Surgery, Teikyo University, Tokyo, Japan
| | - K Otsuka
- Department of Cardiovascular Surgery, Teikyo University, Tokyo, Japan
| | - T Shimokawa
- Department of Cardiovascular Surgery, Teikyo University, Tokyo, Japan
| | - M Niimi
- Department of Surgery, Teikyo University, Tokyo, Japan.
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40
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Looi CY, Sasahara Y, Watanabe Y, Satoh M, Hakozaki I, Uchiyama M, Wong WF, Du W, Uchiyama T, Kumaki S, Tsuchiya S, Kure S. The open conformation of WASP regulates its nuclear localization and gene transcription in myeloid cells. Int Immunol 2014; 26:341-52. [DOI: 10.1093/intimm/dxt072] [Citation(s) in RCA: 11] [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: 01/16/2023] Open
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41
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Choi EY, Mazur L, Mager L, Gwon M, Pitrat D, Mulatier JC, Monnereau C, Fort A, Attias AJ, Dorkenoo K, Kwon JE, Xiao Y, Matczyszyn K, Samoc M, Kim DW, Nakao A, Heinrich B, Hashizume D, Uchiyama M, Park SY, Mathevet F, Aoyama T, Andraud C, Wu JW, Barsella A, Ribierre JC. Photophysical, amplified spontaneous emission and charge transport properties of oligofluorene derivatives in thin films. Phys Chem Chem Phys 2014; 16:16941-56. [DOI: 10.1039/c4cp01134a] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We investigate the charge transport, photophysical and amplified spontaneous emission properties of a series of monodisperse solution-processable oligofluorenes functionalized with hexyl chains at the C9 position of each fluorene unit.
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Affiliation(s)
- E. Y. Choi
- Department of Physics
- CNRS-Ewha International Research Center
- Ewha Womans University
- Seoul, South Korea
| | - L. Mazur
- Institut Parisien de Chimie Moléculaire
- Chimie des Polymères
- Université Pierre et Marie Curie
- UMR 8232
- Ivry, France
| | - L. Mager
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)
- UMR 7504
- CNRS-Université de Strasbourg
- 67034 Strasbourg Cedex 2, France
| | - M. Gwon
- Department of Physics
- CNRS-Ewha International Research Center
- Ewha Womans University
- Seoul, South Korea
| | - D. Pitrat
- Laboratoire de Chimie
- CNRS-UMR 5182
- University of Lyon 1
- Ecole Normale Supérieure de Lyon
- Lyon, France
| | - J. C. Mulatier
- Laboratoire de Chimie
- CNRS-UMR 5182
- University of Lyon 1
- Ecole Normale Supérieure de Lyon
- Lyon, France
| | - C. Monnereau
- Laboratoire de Chimie
- CNRS-UMR 5182
- University of Lyon 1
- Ecole Normale Supérieure de Lyon
- Lyon, France
| | - A. Fort
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)
- UMR 7504
- CNRS-Université de Strasbourg
- 67034 Strasbourg Cedex 2, France
| | - A. J. Attias
- Institut Parisien de Chimie Moléculaire
- Chimie des Polymères
- Université Pierre et Marie Curie
- UMR 8232
- Ivry, France
| | - K. Dorkenoo
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)
- UMR 7504
- CNRS-Université de Strasbourg
- 67034 Strasbourg Cedex 2, France
| | - J. E. Kwon
- Department of Materials Science and Engineering
- Seoul National University
- Seoul, South Korea
| | - Y. Xiao
- Institut Parisien de Chimie Moléculaire
- Chimie des Polymères
- Université Pierre et Marie Curie
- UMR 8232
- Ivry, France
| | - K. Matczyszyn
- Institute of Physical and Theoretical Chemistry
- Wroclaw University of Technology
- 50-370 Wroclaw, Poland
| | - M. Samoc
- Institute of Physical and Theoretical Chemistry
- Wroclaw University of Technology
- 50-370 Wroclaw, Poland
| | - D.-W. Kim
- Department of Physics
- CNRS-Ewha International Research Center
- Ewha Womans University
- Seoul, South Korea
| | - A. Nakao
- Nuclear Spectroscopy Laboratory
- RIKEN Nishina Center for Accelerator-Based Science (RNC)
- Wako, Japan
| | - B. Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)
- UMR 7504
- CNRS-Université de Strasbourg
- 67034 Strasbourg Cedex 2, France
| | - D. Hashizume
- Materials Characterization Support Unit
- RIKEN Center for Emergent Matter Science (CEMS)
- Wako, Japan
| | - M. Uchiyama
- Elements Chemistry Laboratory
- RIKEN
- Wako, Japan
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
| | - S. Y. Park
- Department of Materials Science and Engineering
- Seoul National University
- Seoul, South Korea
| | - F. Mathevet
- Institut Parisien de Chimie Moléculaire
- Chimie des Polymères
- Université Pierre et Marie Curie
- UMR 8232
- Ivry, France
| | - T. Aoyama
- Elements Chemistry Laboratory
- RIKEN
- Wako, Japan
| | - C. Andraud
- Laboratoire de Chimie
- CNRS-UMR 5182
- University of Lyon 1
- Ecole Normale Supérieure de Lyon
- Lyon, France
| | - J. W. Wu
- Department of Physics
- CNRS-Ewha International Research Center
- Ewha Womans University
- Seoul, South Korea
| | - A. Barsella
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)
- UMR 7504
- CNRS-Université de Strasbourg
- 67034 Strasbourg Cedex 2, France
| | - J. C. Ribierre
- Department of Physics
- CNRS-Ewha International Research Center
- Ewha Womans University
- Seoul, South Korea
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42
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Ribierre JC, Yokota Y, Sato M, Ishizuka A, Tanaka T, Watanabe S, Matsumoto M, Muranaka A, Matsumoto S, Uchiyama M, Aoyama T. Influence of the grain orientation on the charge transport properties of organic field-effect transistors. RSC Adv 2014. [DOI: 10.1039/c4ra04964k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
We report the effects of crystalline grain orientation on the charge transport properties of a J-aggregate bisazomethine dye (DE2) in thin films.
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Affiliation(s)
- J. C. Ribierre
- Department of Physics
- CNRS-Ewha International Research Center
- Ewha Womans University
- Seoul 120-750, South Korea
- Elements Chemistry Laboratory
| | - Y. Yokota
- Elements Chemistry Laboratory
- RIKEN
- Wako, Japan
- Department of Environmental and Natural Sciences
- Graduate School of Environment and Information Sciences
| | - M. Sato
- Department of Environmental and Natural Sciences
- Graduate School of Environment and Information Sciences
- Yokohama National University
- Yokohama, Japan
| | - A. Ishizuka
- Elements Chemistry Laboratory
- RIKEN
- Wako, Japan
- Department of Environmental and Natural Sciences
- Graduate School of Environment and Information Sciences
| | - T. Tanaka
- Department of Chemistry and Biochemistry
- Fukushima National College of Technology
- Iwaki, Japan
| | - S. Watanabe
- Elements Chemistry Laboratory
- RIKEN
- Wako, Japan
- Department of Materials Science and Technology
- Tokyo University of Science
| | - M. Matsumoto
- Department of Materials Science and Technology
- Tokyo University of Science
- Tokyo 125-8585, Japan
| | - A. Muranaka
- Elements Chemistry Laboratory
- RIKEN
- Wako, Japan
| | - S. Matsumoto
- Elements Chemistry Laboratory
- RIKEN
- Wako, Japan
- Department of Environmental and Natural Sciences
- Graduate School of Environment and Information Sciences
| | - M. Uchiyama
- Elements Chemistry Laboratory
- RIKEN
- Wako, Japan
- Graduate School of Pharmaceutical Sciences
- The University of Tokyo
| | - T. Aoyama
- Elements Chemistry Laboratory
- RIKEN
- Wako, Japan
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43
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Shudo K, Satake T, Shimatsu T, Uchiyama M, Takeda J. Electronic excited states of a strongly correlated organic radical 1,3,5-trithia-2,4,6-triazapentalenyl (TTTA) adsorbed on a Si(001) surface. Phys Chem Chem Phys 2013; 15:19213-20. [PMID: 24108348 DOI: 10.1039/c3cp52919c] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electronic excited states of a strongly correlated organic radical, 1,3,5-trithia-2,4,6-triazapentalenyl (TTTA), adsorbed on a Si(001) surface were investigated by means of two-photon photoemission spectroscopy (2PPE) to elucidate the functional organic thin-film formation on a typical semiconductor substrate. The spectra were interpreted with the aid of density functional theoretical calculations. The unpaired electron of TTTA forms a covalent bond with the dangling bond of the Si-dimer initially, and there are resonant states of TTTA to Si near the surface. The molecules adsorbed at room temperature form dimers having diamagnetic properties at thicknesses of a few monolayers, while the paramagnetic phase appears at multilayer thickness. From the change in the work function, the orientation of the adsorbed TTTA molecules was determined to change depending on the thickness of the adsorbed layer.
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Affiliation(s)
- K Shudo
- Faculty of Engineering/Science, Yokohama National University, Tokiwadai 79-5, Hodogaya-ku, Yokohama 240-8501, Japan.
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Uchiyama M, Shimizu A, Masuda Y, Nagasaka S, Fukuda Y, Takahashi H. An ophthalmic solution of a peroxisome proliferator-activated receptor gamma agonist prevents corneal inflammation in a rat alkali burn model. Mol Vis 2013; 19:2135-50. [PMID: 24194635 PMCID: PMC3816991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 10/29/2013] [Indexed: 12/02/2022] Open
Abstract
PURPOSE We clarified the effects of an ophthalmic solution of a peroxisome proliferator-activated receptor gamma (PPARγ) agonist on corneal inflammation and wound healing after alkali burn injury in rats. METHODS After alkali exposure, either an ophthalmic solution with 0.1% pioglitazone hydrochloride (the PPARγ group) or vehicle (the vehicle group) was topically applied to the cornea until day 14. Histological, immunohistochemical, and real-time reverse transcription polymerase chain reaction analysis were performed. RESULTS After alkali injury, PPARγ expression increased, with the infiltration of many inflammatory cells. The infiltration of neutrophils and macrophages started from the corneal limbus within 6 h, and developed in the corneal center by day 7, with associated neovascularization. The accumulation of α-smooth muscle actin-positive myofibroblasts and the deposition of type III collagen were noted on day 14. The histological changes were suppressed significantly by treatment with the ophthalmic solution of the PPARγ agonist. In addition, the number of infiltrating M2 macrophages in the cornea was increased by PPARγ agonist treatment. In real-time reverse transcription polymerase chain reaction analysis, the messenger ribonucleic acid expression levels of interleukin-1β (IL-1β), IL-6, IL-8, monocyte chemoattractant protein-1, tumor necrosis factor-α, transforming growth factor beta 1, and vascular endothelial growth factor-A were decreased in the PPARγ group compared to the vehicle group in the early periods of corneal inflammation. CONCLUSIONS The ophthalmic solution of the PPARγ agonist inhibited inflammation, decreased the fibrotic reaction, and prevented neovascularization in the cornea from the early phase after alkali burn injury. The ophthalmic solution of the PPARγ agonist may provide a new treatment strategy with useful clinical applications for corneal inflammation and wound healing.
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Affiliation(s)
- Masaaki Uchiyama
- Department of Ophthalmology, Nippon Medical School, Tokyo, Japan,Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan
| | - Akira Shimizu
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan
| | - Yukinari Masuda
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan
| | - Shinya Nagasaka
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan
| | - Yuh Fukuda
- Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan
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45
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Yamamura N, Yamada M, Takahashi M, Uchiyama M, Koda H, Mikkaichi T, Nishiya Y, Honda T, Arakawa N, Domon Y, Fischer T, Mueller J. Pharmacokinetics of DS-5565, a novel α2δ ligand, in rats and monkeys and assessment of DDI risk. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1883] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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46
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47
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Azuma M, Wada K, Leprince J, Tonon MC, Uchiyama M, Takahashi A, Vaudry H, Matsuda K. The octadecaneuropeptide stimulates somatolactin release from cultured goldfish pituitary cells. J Neuroendocrinol 2013; 25:312-21. [PMID: 23163696 DOI: 10.1111/jne.12005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Revised: 10/24/2012] [Accepted: 11/10/2012] [Indexed: 11/30/2022]
Abstract
The present study aimed to investigate the distribution of the octadecaneuropeptide (ODN) in the goldfish brain and to look for a possible effect of ODN on somatolactin (SL) release from pituitary cells. A discrete population of ODN-immunoreactive neurones was localised in the lateral part of the nucleus lateralis tuberis. These neurones sent projections through the neurohypophyseal tract towards the neurohypophysis, and nerve fibres were seen in the close vicinity of SL-producing cells in the pars intermedia. Incubation of cultured goldfish pituitary cells with graded concentrations of ODN (10(-9) -10(-5 ) m) induced a dose-dependent stimulation of SL-β, but not SL-α, release. ODN-evoked SL release was blocked by the metabotrophic endozepine receptor antagonist cyclo(1-8) [DLeu(5) ]OP but was not affected by the central-type benzodiazepine receptor antagonist flumazenil. ODN-induced SL release was suppressed by treatment with the phospholipase C (PLC) inhibitor U-73122 but not with the protein kinase A (PKA) inhibitor H-89. These results indicate that, in fish, ODN produced by hypothalamic neurones acts as a hypophysiotrophic neuropeptide stimulating SL release. The effect of ODN is mediated through a metabotrophic endozepine receptor positively coupled to the PLC/inositol 1,4,5-trisphosphate/protein kinase C-signalling pathway.
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Affiliation(s)
- M Azuma
- Laboratory of Regulatory Biology, Graduate School of Science and Engineering, University of Toyama, Toyama, Japan
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48
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Shin HY, Woo JH, Gwon MJ, Barthelemy M, Vomir M, Muto T, Takaishi K, Uchiyama M, Hashizume D, Aoyama T, Kim DW, Yoon S, Bigot JY, Wu JW, Ribierre JC. Exciton diffusion in near-infrared absorbing solution-processed organic thin films. Phys Chem Chem Phys 2013; 15:2867-72. [DOI: 10.1039/c2cp43705h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Kanno S, Saito M, Hayashi A, Uchiyama M, Hiraoka K, Nishio Y, Hisanaga K, Mori E. Counting-backward test for executive function in idiopathic normal pressure hydrocephalus. Acta Neurol Scand 2012; 126:279-86. [PMID: 22288385 DOI: 10.1111/j.1600-0404.2012.01644.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2012] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The aim of this study was to develop and validate a bedside test for executive function in patients with idiopathic normal pressure hydrocephalus (INPH). MATERIALS AND METHODS Twenty consecutive patients with INPH and 20 patients with Alzheimer's disease (AD) were enrolled in this study. We developed the counting-backward test for evaluating executive function in patients with INPH. Two indices that are considered to be reflective of the attention deficits and response suppression underlying executive dysfunction in INPH were calculated: the first-error score and the reverse-effect index. Performance on both the counting-backward test and standard neuropsychological tests for executive function was assessed in INPH and AD patients. RESULTS The first-error score, reverse-effect index and the scores from the standard neuropsychological tests for executive function were significantly lower for individuals in the INPH group than in the AD group. The two indices for the counting-backward test in the INPH group were strongly correlated with the total scores for Frontal Assessment Battery and Phonemic Verbal Fluency. The first-error score was also significantly correlated with the error rate of the Stroop colour-word test and the score of the go/no-go test. In addition, we found that the first-error score highly distinguished patients with INPH from those with AD using these tests. CONCLUSION The counting-backward test is useful for evaluating executive dysfunction in INPH and for differentiating between INPH and AD patients. In particular, the first-error score may reflect deficits in the response suppression related to executive dysfunction in INPH.
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Affiliation(s)
- S. Kanno
- Department of Behavioural Neurology and Cognitive Neuroscience; Tohoku University Graduate School of Medicine; Sendai; Japan
| | - M. Saito
- Department of Behavioural Neurology and Cognitive Neuroscience; Tohoku University Graduate School of Medicine; Sendai; Japan
| | - A. Hayashi
- Department of Behavioural Neurology and Cognitive Neuroscience; Tohoku University Graduate School of Medicine; Sendai; Japan
| | - M. Uchiyama
- Department of Behavioural Neurology and Cognitive Neuroscience; Tohoku University Graduate School of Medicine; Sendai; Japan
| | - K. Hiraoka
- Department of Behavioural Neurology and Cognitive Neuroscience; Tohoku University Graduate School of Medicine; Sendai; Japan
| | - Y. Nishio
- Department of Behavioural Neurology and Cognitive Neuroscience; Tohoku University Graduate School of Medicine; Sendai; Japan
| | - K. Hisanaga
- Department of Neurology; Miyagi National Hospital; Watari; Miyagi; Japan
| | - E. Mori
- Department of Behavioural Neurology and Cognitive Neuroscience; Tohoku University Graduate School of Medicine; Sendai; Japan
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50
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Jin X, Uchiyama M, Zhang Q, Watanabe T, Niimi M. The smell of Tokishakuyaku-san (TJ-23) induces generation of regulatory T cells and prolongation of survival of fully allogeneic cardiac grafts in mice. Transplant Proc 2012; 44:1070-2. [PMID: 22564627 DOI: 10.1016/j.transproceed.2012.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Oral administration of Tokishakuyaku-san (TJ-23), a Japanese herbal medicine, induces prolongation of cardiac allograft survival and generates regulatory cells in mice. Because herbal medicines usually have unique odor, and because smell is supposed to modulate the immune system, we examined whether the odor of TJ-23 induced prolonged allograft survival and regulatory cell generation. Naïve CBA mice (H2(k)) and olfactory-dysfunctional CBA mice after a stereotaxic operation underwent transplantation of C57BL/6 (B6, H2(b)) hearts, receiving fumigated water only or TJ-23 until rejection. Untreated or treated with water fumigation CBA mice rejected B6 cardiac grafts acutely (median survival times [MSTs], 7 and 8.5 days). When CBA mice were treated with fumigation of TJ-23, allograft survival was significantly prolonged (MST, 48 days). Olfactory-dysfunctional CBA mice treated with fumigation of TJ-23 rejected grafts acutely (MST, 7 days). Treatment with fumigation of TJ-23 also suppressed splenocytes proliferation and interferon-γ production. Secondary CBA recipients of whole splenocytes or CD4(+) cells from primary TJ-23-treated CBA recipients of B6 cardiac allografts at 30 days after grafting showed prolonged survival of B6 hearts (MST, >60 days). Flow cytometry studies showed increased CD4(+)CD25(+)Foxp3(+) regulatory cells in recipients given fumigation of TJ-23. In conclusion naïve but not olfactory-dysfunctional CBA mice treated with fumigation of TJ-23 displayed prolonged survival of fully allogeneic cardiac allografts and generation of regulatory cells.
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Affiliation(s)
- X Jin
- Department of Surgery, Teikyo University, Tokyo, Japan
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