1
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Fujie R, Kurowarabe K, Yamada Y, Fujiwara K, Nakatani H, Tsutsumi K, Hayashi R, Kawahata H, Miyamoto M, Ozawa M, Katakai T, Takahama Y, Ohigashi I, Hayasaka H. Endogenous CCL21-Ser deficiency reduces B16-F10 melanoma growth by enhanced antitumor immunity. Heliyon 2023; 9:e19215. [PMID: 37664721 PMCID: PMC10469598 DOI: 10.1016/j.heliyon.2023.e19215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 08/10/2023] [Accepted: 08/16/2023] [Indexed: 09/05/2023] Open
Abstract
The chemokine CCL21 regulates immune and cancer cell migration through its receptor CCR7. The Ccl21a gene encodes the isoform CCL21-Ser, predominantly expressed in the thymic medulla and the secondary lymphoid tissues. This study examined the roles of CCL21-Ser in the antitumor immune response in Ccl21a-knockout (KO) mice. The Ccl21a-KO mice showed significantly decreased growth of B16-F10 and YUMM1.7 melanomas and increased growth of MC38 colon cancer, despite no significant difference in LLC lung cancer and EO771 breast cancer. The B16-F10 tumor in Ccl21a-KO mice showed melanoma-specific activated CD8+ T cell and NK cell infiltration and higher Treg counts than wild-type mice. B16-F10 tumors in Ccl21a-KO mice showed a reduction in the positive correlation between the ratio of regulatory T cells (Tregs) to activated CD8+ T cells and tumor weight. In Ccl21a-KO tumor, the intratumoral Tregs showed lower co-inhibitory receptors TIM-3 and TIGIT. Taken together, these results suggest that endogenous CCL21-Ser supports melanoma growth in vivo by maintaining Treg function and suppressing antitumor immunity by CD8+ T cells.
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Affiliation(s)
- Ryonosuke Fujie
- Department of Science, Graduate School of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kaoru Kurowarabe
- Department of Science, Graduate School of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Yuki Yamada
- Faculty of Science & Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kakeru Fujiwara
- Department of Science, Graduate School of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Hayato Nakatani
- Faculty of Science & Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Kenta Tsutsumi
- Faculty of Science & Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Ryota Hayashi
- Department of Science, Graduate School of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Hinami Kawahata
- Faculty of Science & Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Megumi Miyamoto
- Department of Science, Graduate School of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
| | - Madoka Ozawa
- Department of Immunology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata 951-8510, Japan
| | - Tomoya Katakai
- Department of Immunology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi-dori, Chuo-ku, Niigata 951-8510, Japan
| | - Yousuke Takahama
- Division of Experimental Immunology, Institute of Advanced Medical Sciences, University of Tokushima, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
- Thymus Biology Section, Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, United States
| | - Izumi Ohigashi
- Division of Experimental Immunology, Institute of Advanced Medical Sciences, University of Tokushima, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - Haruko Hayasaka
- Department of Science, Graduate School of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
- Faculty of Science & Engineering, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
- Research Institute for Science and Technology, Kindai University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan
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2
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Wang J, Wu J, Tsutsumi K, Choi JH, Hirai H, Kobori H, Takikawa Y, Kawagishi H. A new lanostane triterpenoid from the mushroom Hypholoma fasciculare. Biosci Biotechnol Biochem 2022; 86:819-823. [PMID: 35388876 DOI: 10.1093/bbb/zbac050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/28/2022] [Indexed: 11/12/2022]
Abstract
A novel compound (1) and 3 known compounds (2-4) were isolated from the fruiting bodies of Hypholoma fasciculare. The structure of 1 was determined by the interpretation of spectroscopic data. Compounds 2-4 were identified by comparing the spectra data of known compounds. In the bioassay examining growth inhibitory activity against phytopathogenic bacteria Clavibacter michiganensis, Burkholderia glumae, and Peptobacterium carotovorum, compounds 1, 2, and 4 showed inhibition effects on C. michiganensis only.
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Affiliation(s)
- Junhong Wang
- Department of Agriculture, Graduate School of Integrated Science and Technology, Shizuoka University, Shizuoka, Japan
| | - Jing Wu
- Research Institute of Green Science and Technology, Shizuoka University, Shizuoka, Japan
| | - Kenta Tsutsumi
- Department of Applied Life Science, Faculty of Agriculture, Shizuoka University, Shizuoka, Japan
| | - Jae-Hoon Choi
- Department of Agriculture, Graduate School of Integrated Science and Technology, Shizuoka University, Shizuoka, Japan.,Research Institute of Green Science and Technology, Shizuoka University, Shizuoka, Japan.,Department of Applied Life Science, Faculty of Agriculture, Shizuoka University, Shizuoka, Japan.,Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, Shizuoka, Japan
| | - Hirofumi Hirai
- Department of Agriculture, Graduate School of Integrated Science and Technology, Shizuoka University, Shizuoka, Japan.,Research Institute of Green Science and Technology, Shizuoka University, Shizuoka, Japan.,Department of Applied Life Science, Faculty of Agriculture, Shizuoka University, Shizuoka, Japan.,Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, Shizuoka, Japan
| | - Hajime Kobori
- Iwade Research Institute of Mycology Co., Ltd., Tsu-shi, Mie, Japan
| | - Yuichi Takikawa
- Department of Agriculture, Graduate School of Integrated Science and Technology, Shizuoka University, Shizuoka, Japan.,Department of Applied Life Science, Faculty of Agriculture, Shizuoka University, Shizuoka, Japan.,Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, Shizuoka, Japan
| | - Hirokazu Kawagishi
- Department of Agriculture, Graduate School of Integrated Science and Technology, Shizuoka University, Shizuoka, Japan.,Research Institute of Green Science and Technology, Shizuoka University, Shizuoka, Japan.,Department of Applied Life Science, Faculty of Agriculture, Shizuoka University, Shizuoka, Japan.,Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, Shizuoka, Japan
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3
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Gogami T, Achenbach P, Akiyama T, Androic D, Asaturyan A, Brash E, Bukhari MH, Camsonne A, Covrig Dusa S, Ebata K, Elaasar MA, Fujii Y, Fujiwara T, Furic M, Garibaldi F, Gueye P, Higinbotham DW, Ishige T, Itabashi K, Kaneta M, Kino R, Lashley N, Markowitz P, Meekins D, Mizuno M, Mkrtchyan HG, Mkrtchyan AH, Nagafusa S, Nagano S, Nagao S, Nakamura SN, Nakamura YR, Niculescu G, Niculescu I, Okuyama K, Pandey B, Pochodzalla J, Reinhold J, Rodriguez VM, Samanta C, Sawatzky B, Shabestari MH, Shahinyan A, Sirca S, Suzuki KN, Tachibana K, Tang L, Toyama Y, Tsutsumi K, Uehara K, Umezaki E, Urciuoli GM, Watanabe D, Wood SA. High accuracy spectroscopy of 3- and 4-body Λ hypernuclei at Jefferson Lab. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202227101001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
JLab E12-19-002 Experiment is planned to measure the Λ-binding energies of 3ΛH [Jπ = 1/2+ or 3/2+(T = 0)] and 4ΛH (1+) at JLab Hall C. The expected accuracy for the binding-energy measurement is |ΔBtotal Λ | ≃ 70 keV. The accurate spectroscopy for these light hypernuclei would shed light on the puzzle of the small binding energy and short lifetime of 3ΛH, and the chargesymmetry breaking in the ΛN interaction. We aim to perform the experiment in 2025.
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4
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Tsutsumi K, Gozu Y, Nishikawa A, Tonozuka T. Structural insights into polysaccharide recognition by
Flavobacterium johnsoniae
dextranase, a member of glycoside hydrolase family 31. FEBS J 2019; 287:1195-1207. [DOI: 10.1111/febs.15074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/25/2019] [Accepted: 09/20/2019] [Indexed: 11/27/2022]
Affiliation(s)
- Kenta Tsutsumi
- Department of Applied Biological Science Tokyo University of Agriculture and Technology Japan
| | - Yoshifumi Gozu
- Department of Applied Biological Science Tokyo University of Agriculture and Technology Japan
| | - Atsushi Nishikawa
- Department of Applied Biological Science Tokyo University of Agriculture and Technology Japan
| | - Takashi Tonozuka
- Department of Applied Biological Science Tokyo University of Agriculture and Technology Japan
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5
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Tsutsumi K, Yonehara R, Ishizaka-Ikeda E, Miyazaki N, Maeda S, Iwasaki K, Nakagawa A, Yamashita E. Structures of the wild-type MexAB-OprM tripartite pump reveal its complex formation and drug efflux mechanism. Nat Commun 2019; 10:1520. [PMID: 30944318 PMCID: PMC6447562 DOI: 10.1038/s41467-019-09463-9] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [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] [Received: 12/05/2018] [Accepted: 03/11/2019] [Indexed: 11/30/2022] Open
Abstract
In Pseudomonas aeruginosa, MexAB–OprM plays a central role in multidrug resistance by ejecting various drug compounds, which is one of the causes of serious nosocomial infections. Although the structures of the components of MexAB–OprM have been solved individually by X-ray crystallography, no structural information for fully assembled pumps from P. aeruginosa were previously available. In this study, we present the structure of wild-type MexAB–OprM in the presence or absence of drugs at near-atomic resolution. The structure reveals that OprM does not interact with MexB directly, and that it opens its periplasmic gate by forming a complex. Furthermore, we confirm the residues essential for complex formation and observed a movement of the drug entrance gate. Based on these results, we propose mechanisms for complex formation and drug efflux. In Pseudomonas aeruginosa, MexAB–OprM plays a central role in multidrug resistance by ejecting various drug compounds. Here the authors present the structure of wild-type MexAB–OprM in the presence or absence of drugs and propose mechanisms for complex formation and drug efflux.
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Affiliation(s)
- Kenta Tsutsumi
- Institute for Protein Research, Osaka University, Suita, 565-0871, Osaka, Japan
| | - Ryo Yonehara
- Institute for Protein Research, Osaka University, Suita, 565-0871, Osaka, Japan
| | | | - Naoyuki Miyazaki
- Institute for Protein Research, Osaka University, Suita, 565-0871, Osaka, Japan
| | - Shintaro Maeda
- Institute for Protein Research, Osaka University, Suita, 565-0871, Osaka, Japan.,The Scripps Research Institute Department of Integrative Structural and Computational Biology, North Torrey Pines Road, La Jolla, CA, 10550, USA
| | - Kenji Iwasaki
- Institute for Protein Research, Osaka University, Suita, 565-0871, Osaka, Japan.,University of Tsukuba Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance 1-1-1 Tennodai, Tsukuba, 305-8577, Ibaraki, Japan
| | - Atsushi Nakagawa
- Institute for Protein Research, Osaka University, Suita, 565-0871, Osaka, Japan
| | - Eiki Yamashita
- Institute for Protein Research, Osaka University, Suita, 565-0871, Osaka, Japan.
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6
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Nakamichi Y, Miyazaki N, Tsutsumi K, Higashiura A, Narita H, Murata K, Nakagawa A. An Assembly Intermediate Structure of Rice Dwarf Virus Reveals a Hierarchical Outer Capsid Shell Assembly Mechanism. Structure 2018; 27:439-448.e3. [PMID: 30581044 DOI: 10.1016/j.str.2018.10.029] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 08/29/2018] [Accepted: 10/26/2018] [Indexed: 10/27/2022]
Abstract
Nearly all viruses of the Reoviridae family possess a multi-layered capsid consisting of an inner layer with icosahedral T = 1 symmetry and a second-outer layer (composed of 260 copies of a trimeric protein) exhibiting icosahedral T = 13 symmetry. Here we describe the construction and structural evaluation of an assembly intermediate of the Rice dwarf virus of the family Reoviridae stalled at the second capsid layer via targeted disruption of the trimer-trimer interaction interface in the second-layer capsid protein. Structural determination was performed by conventional and Zernike/Volta phase-contrast cryoelectron microscopy. The assembly defect second-layer capsid trimers bound exclusively to the outer surface of the innermost capsid layer at the icosahedral 3-fold axis. Furthermore, the second-layer assembly could not proceed without specific inter-trimer interactions. Our results suggest that the correct assembly pathway for second-layer capsid formation is highly controlled at the inter-layer and inter-trimer interactions.
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Affiliation(s)
- Yusuke Nakamichi
- Institute for Protein Research, Osaka University, Suita, Osaka 565-0871 Japan; Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology, Higashi-Hiroshima, Hiroshima 739-0046 Japan
| | - Naoyuki Miyazaki
- Institute for Protein Research, Osaka University, Suita, Osaka 565-0871 Japan; National Institute for Physiological Sciences, Okazaki, Aichi 444-8787 Japan
| | - Kenta Tsutsumi
- Institute for Protein Research, Osaka University, Suita, Osaka 565-0871 Japan
| | - Akifumi Higashiura
- Institute for Protein Research, Osaka University, Suita, Osaka 565-0871 Japan; Department of Virology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Hiroshima 734-8551 Japan
| | - Hirotaka Narita
- Institute for Protein Research, Osaka University, Suita, Osaka 565-0871 Japan
| | - Kazuyoshi Murata
- National Institute for Physiological Sciences, Okazaki, Aichi 444-8787 Japan
| | - Atsushi Nakagawa
- Institute for Protein Research, Osaka University, Suita, Osaka 565-0871 Japan.
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7
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Higashiura A, Nakamichi Y, Miyazaki N, Tsutsumi K, Murata K, Omura T, Nakagawa A. Structure assembly mechanism of rice dwarf virus. Acta Crystallogr A Found Adv 2017. [DOI: 10.1107/s2053273317089185] [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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8
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Tsutsumi K, Maruyama M, Uchiyama A, Shibasaki K. Characterisation of a sucrose-independent in vitro biofilm model of supragingival plaque. Oral Dis 2017; 24:465-475. [PMID: 28898513 DOI: 10.1111/odi.12779] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 08/10/2017] [Accepted: 09/06/2017] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Sugar consumption has been decreasing in Japan, suggesting higher rates of sucrose-independent supragingival plaque formation. For developing an in vitro biofilm model of sucrose-independent supragingival plaque, this study aimed to investigate the compositions and functions on contributing to cariogenicity in comparison with sucrose-dependent biofilm. MATERIALS AND METHODS An in vitro multispecies biofilm containing Actinomyces naeslundii, Streptococcus gordonii, S. mutans, Veillonella parvula and Fusobacterium nucleatum was formed on 24-well plates in the absence or presence of 1% sucrose. Compositions were assessed by plate culture, scanning electron microscopy and confocal laser scanning microscopy after fluorescent in situ hybridisation or labelling of extracellular polymeric substances (EPS). Functions were assessed by acidogenicity, adherence strength and sensitivities to anticaries agents. RESULTS Although both biofilms exhibited a Streptococcus predominant bacterial composition, there were differences in bacterial and EPS compositions; in particular, little glucan EPS was observed in sucrose-independent biofilm. Compared with sucrose-dependent biofilm, acidogenicity, adherence strength and antimicrobial resistance of sucrose-independent biofilm were only slightly lower. However, dextranase degradation was substantially lower in sucrose-independent biofilm. CONCLUSION Our findings suggest that sucrose-independent biofilm may have cariogenicity as with sucrose-dependent biofilm. These in vitro models can help further elucidate plaque-induced caries aetiology and develop new anticaries agents.
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Affiliation(s)
- K Tsutsumi
- Section of Oral Health Promotion and Technology, Division of Oral Health, Technology and Epidemiology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.,Oral Care Research Laboratories, Research and Development Headquarters, Lion Corporation, Tokyo, Japan
| | - M Maruyama
- Oral Care Research Laboratories, Research and Development Headquarters, Lion Corporation, Tokyo, Japan
| | - A Uchiyama
- Section of Oral Health Promotion and Technology, Division of Oral Health, Technology and Epidemiology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.,Functional Food Research Laboratories, Research and Development Headquarters, Lion Corporation, Odawara, Japan
| | - K Shibasaki
- Section of Oral Health Promotion and Technology, Division of Oral Health, Technology and Epidemiology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.,Oral Care Research Laboratories, Research and Development Headquarters, Lion Corporation, Tokyo, Japan
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9
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Kawazoe Y, Shiba T, Nakamura R, Mizuno A, Tsutsumi K, Uematsu T, Yamaoka M, Shindoh M, Kohgo T. Induction of Calcification in MC3T3-E1 Cells by Inorganic Polyphosphate. J Dent Res 2016; 83:613-8. [PMID: 15271969 DOI: 10.1177/154405910408300806] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Relatively large amounts of inorganic polyphosphate [poly(P)] (400 μM) have been found in normal osteoblasts. The effect of poly(P) with an average chain length of 65 phosphate residues on cell calcification was therefore investigated with the use of MC3T3-E1 cells. Expression of both osteopontin and osteocalcin was induced by poly(P) (0.1 ~ 1 mM), and cells treated with poly(P) were strongly stained by alizarin red. In addition, the level of alkaline phosphatase activity induced in poly(P)-treated cells was two-fold higher than that in either orthophosphate-treated or control cells but not higher than that in cells treated with β-glycerophosphate and ascorbic acid. In contrast, however, polyphosphatase activities were activated by poly(P) treatment to levels up to six-fold greater than that in controls. MC3T3-E1 cells may utilize poly(P) as a phosphate source for calcification rather than phosphate sources that are mainly produced by ALPase. Poly(P)-dependent induction of polyphosphatase activities may therefore promote calcification in MC3T3-E1 cells.
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Affiliation(s)
- Y Kawazoe
- Regenetiss Co., Ltd., 1-5-17, Akabane, Okaya, Nagano 394-0002, Japan
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10
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Kusunoki M, Natsume Y, Sato D, Tsutsui H, Miyata T, Tsutsumi K, Suga T, Oshida Y. Luseogliflozin, A Sodium Glucose Co-transporter 2 Inhibitor, Alleviates Hepatic Impairment in Japanese Patients with Type 2 Diabetes. Drug Res (Stuttg) 2016; 66:603-606. [DOI: 10.1055/s-0042-111515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- M. Kusunoki
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - Y. Natsume
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - D. Sato
- Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - H. Tsutsui
- General Medical Education Center of Teikyo University, Tokyo, Japan
| | - T. Miyata
- Vascular Center, Sanno Medical Center, Tokyo, Japan
| | - K. Tsutsumi
- Okinaka Memorial Institute for Medical Research, Tokyo, Japan
| | - T. Suga
- Akishima Clinic, Nagoya, Japan
| | - Y. Oshida
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
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11
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Adachi N, Adamovitch V, Adjovi Y, Aida K, Akamatsu H, Akiyama S, Akli A, Ando A, Andrault T, Antonietti H, Anzai S, Arkoun G, Avenoso C, Ayrault D, Banasiewicz M, Banaśkiewicz M, Bernardini L, Bernard E, Berthet E, Blanchard M, Boreyko D, Boros K, Charron S, Cornette P, Czerkas K, Dameron M, Date I, De Pontbriand M, Demangeau F, Dobaczewski Ł, Dobrzyński L, Ducouret A, Dziedzic M, Ecalle A, Edon V, Endo K, Endo T, Endo Y, Etryk D, Fabiszewska M, Fang S, Fauchier D, Felici F, Fujiwara Y, Gardais C, Gaul W, Gurin L, Hakoda R, Hamamatsu I, Handa K, Haneda H, Hara T, Hashimoto M, Hashimoto T, Hashimoto K, Hata D, Hattori M, Hayano R, Hayashi R, Higasi H, Hiruta M, Honda A, Horikawa Y, Horiuchi H, Hozumi Y, Ide M, Ihara S, Ikoma T, Inohara Y, Itazu M, Ito A, Janvrin J, Jout I, Kanda H, Kanemori G, Kanno M, Kanomata N, Kato T, Kato S, Katsu J, Kawasaki Y, Kikuchi K, Kilian P, Kimura N, Kiya M, Klepuszewski M, Kluchnikov E, Kodama Y, Kokubun R, Konishi F, Konno A, Kontsevoy V, Koori A, Koutaka A, Kowol A, Koyama Y, Kozioł M, Kozue M, Kravtchenko O, Kruczała W, Kudła M, Kudo H, Kumagai R, Kurogome K, Kurosu A, Kuse M, Lacombe A, Lefaillet E, Magara M, Malinowska J, Malinowski M, Maroselli V, Masui Y, Matsukawa K, Matsuya K, Matusik B, Maulny M, Mazur P, Miyake C, Miyamoto Y, Miyata K, Miyata K, Miyazaki M, Molȩda M, Morioka T, Morita E, Muto K, Nadamoto H, Nadzikiewicz M, Nagashima K, Nakade M, Nakayama C, Nakazawa H, Nihei Y, Nikul R, Niwa S, Niwa O, Nogi M, Nomura K, Ogata D, Ohguchi H, Ohno J, Okabe M, Okada M, Okada Y, Omi N, Onodera H, Onodera K, Ooki S, Oonishi K, Oonuma H, Ooshima H, Oouchi H, Orsucci M, Paoli M, Penaud M, Perdrisot C, Petit M, Piskowski A, Płocharski A, Polis A, Polti L, Potsepnia T, Przybylski D, Pytel M, Quillet W, Remy A, Robert C, Sadowski M, Saito M, Sakuma D, Sano K, Sasaki Y, Sato N, Schneider T, Schneider C, Schwartzman K, Selivanov E, Sezaki M, Shiroishi K, Shustava I, Śniecińska A, Stalchenko E, Staroń A, Stromboni M, Studzińska W, Sugisaki H, Sukegawa T, Sumida M, Suzuki Y, Suzuki K, Suzuki R, Suzuki H, Suzuki K, Świderski W, Szudejko M, Szymaszek M, Tada J, Taguchi H, Takahashi K, Tanaka D, Tanaka G, Tanaka S, Tanino K, Tazbir K, Tcesnokova N, Tgawa N, Toda N, Tsuchiya H, Tsukamoto H, Tsushima T, Tsutsumi K, Umemura H, Uno M, Usui A, Utsumi H, Vaucelle M, Wada Y, Watanabe K, Watanabe S, Watase K, Witkowski M, Yamaki T, Yamamoto J, Yamamoto T, Yamashita M, Yanai M, Yasuda K, Yoshida Y, Yoshida A, Yoshimura K, Żmijewska M, Zuclarelli E. Measurement and comparison of individual external doses of high-school students living in Japan, France, Poland and Belarus-the 'D-shuttle' project. J Radiol Prot 2016; 36:49-66. [PMID: 26613195 DOI: 10.1088/0952-4746/36/1/49] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Twelve high schools in Japan (of which six are in Fukushima Prefecture), four in France, eight in Poland and two in Belarus cooperated in the measurement and comparison of individual external doses in 2014. In total 216 high-school students and teachers participated in the study. Each participant wore an electronic personal dosimeter 'D-shuttle' for two weeks, and kept a journal of his/her whereabouts and activities. The distributions of annual external doses estimated for each region overlap with each other, demonstrating that the personal external individual doses in locations where residence is currently allowed in Fukushima Prefecture and in Belarus are well within the range of estimated annual doses due to the terrestrial background radiation level of other regions/countries.
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Affiliation(s)
- N Adachi
- Adachi High School, 2-347 Kakunai, Nihonmatsu, Fukushima 964-0904, Japan
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12
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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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13
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Kusunoki M, Sato D, Nakamura T, Oshida Y, Tsutsui H, Natsume Y, Tsutsumi K, Miyata T. The Beneficial Effects of the DPP-4 Inhibitor Alogliptin on Hemoglobin A1c and Serum Lipids in Japanese Patients with Type 2 Diabetes. Drug Res (Stuttg) 2015; 66:18-22. [PMID: 26125284 DOI: 10.1055/s-0035-1547254] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
It has been reported that dipeptidyl peptidase-4 (DPP-4) inhibitors improve hemoglobin A1c (HbA1c) levels in diabetic patients and may also improve the serum lipids. However, few studies have examined relationship between the effects of the DPP-4 inhibitor and the pretreatment HbA1c levels in diabetic patients. Furthermore, it has been reported that prolonged treatment with DPP-4 inhibitors may make glycemic control difficult in some patients. In the present study, we investigated (1) the effect of the DPP-4 inhibitor alogliptin on HbA1c, blood glucose (BG), and serum lipid in Japanese patients with type 2 diabetes, (2) the relationship between the HbA1c levels at baseline and the effects of alogliptin, and (3) the effects of switching of the DPP-4 inhibitor to alogliptin after 12 months' administration of sitagliptin on glycemic control and serum lipids. After 6-months' treatment with alogliptin, we found reductions of HbA1c, BG, and serum total cholesterol, and LDL cholesterol levels. Pretreatment level of HbA1c was well correlated with the degree of reduction of both HbA1c and BG levels after the treatment. Also, alogliptin kept levels of HbA1c and BG reduced by sitagliptin for 12 months, and relapsing of these levels and serum lipids were not observed. This study revealed that alogliptin improved HbA1c, BG, and serum lipid profiles in type 2 diabetic patients, and the effect of alogliptin on HbA1c and BG levels was correlated with HbA1c level at pretreatment. Furthermore, long-term treatment with alogliptin did not cause relapsing of glycemic control and serum lipids.
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Affiliation(s)
- M Kusunoki
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - D Sato
- Department of Biomedical Information Engineering, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - T Nakamura
- Department of Biomedical Information Engineering, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - Y Oshida
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - H Tsutsui
- General Medical Education Center of Teikyo University, Tokyo, Japan
| | - Y Natsume
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - K Tsutsumi
- Okinaka Memorial Institute for Medical Research, Tokyo, Japan
| | - T Miyata
- Vascular Center, Sanno Medical Center, Tokyo, Japan
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14
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Uchino K, Higashiyama K, Kato T, Haque T, Sato F, Tomita A, Tsutsumi K, Moritani M, Yamamura K, Yoshida A. Jaw movement-related primary somatosensory cortical area in the rat. Neuroscience 2015; 284:55-64. [DOI: 10.1016/j.neuroscience.2014.09.072] [Citation(s) in RCA: 7] [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] [Received: 06/25/2014] [Revised: 09/02/2014] [Accepted: 09/02/2014] [Indexed: 11/30/2022]
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15
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Yoshino M, Tsutsumi K, Kanazawa A. Profiles of embryonic nuclear protein binding to the proximal promoter region of the soybean β-conglycinin α subunit gene. Plant Biol (Stuttg) 2015; 17:147-52. [PMID: 24943483 DOI: 10.1111/plb.12218] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 05/02/2014] [Indexed: 06/03/2023]
Abstract
β-Conglycinin, a major component of seed storage protein in soybean, comprises three subunits: α, α' and β. The expression of genes for these subunits is strictly controlled during embryogenesis. The proximal promoter region up to 245 bp upstream of the transcription start site of the α subunit gene sufficiently confers spatial and temporal control of transcription in embryos. Here, the binding profile of nuclear proteins in the proximal promoter region of the α subunit gene was analysed. DNase I footprinting analysis indicated binding of proteins to the RY element and DNA regions including box I, a region conserved in cognate gene promoters. An electrophoretic mobility shift assay (EMSA) using different portions of box I as a probe revealed that multiple portions of box I bind to nuclear proteins. In addition, an EMSA using nuclear proteins extracted from embryos at different developmental stages indicated that the levels of major DNA-protein complexes on box I increased during embryo maturation. These results are consistent with the notion that box I is important for the transcriptional control of seed storage protein genes. Furthermore, the present data suggest that nuclear proteins bind to novel motifs in box I including 5'-TCAATT-3' rather than to predicted cis-regulatory elements.
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Affiliation(s)
- M Yoshino
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
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16
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Kusunoki M, Sato D, Nakamura T, Oshida Y, Tsutsui H, Natsume Y, Tsutsumi K, Miyata T. DPP-4 Inhibitor Teneligliptin Improves Insulin Resistance and Serum Lipid Profile in Japanese Patients with Type 2 Diabetes. Drug Res (Stuttg) 2014; 65:532-4. [PMID: 25368904 DOI: 10.1055/s-0034-1390419] [Citation(s) in RCA: 13] [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] [Indexed: 10/24/2022]
Abstract
Dipeptidyl peptidase-4 (DPP-4) inhibitors have been reported to improve the glycemic control and blood hemoglobin A1c (HbA1c) concentrations. However, there are few reports as yet suggesting that DPP-4 inhibitors may also improve insulin resistance and the serum lipid profile in the clinical setting. This study was aimed at investigating the effect of 14-week treatment with teneligliptin (20 mg/day) on the homeostasis model assessment ratio (HOMA-R), an indicator of insulin resistance, and serum lipid profile in 9 patients with type 2 diabetes. The treatment produced a significant decrease of the blood glucose and HbA1c concentration (blood glucose: p=0.008; HbA1c: p=0.038), and also improved HOMA-R (p=0.039). Furthermore, the patients showed elevation of the serum HDL-cholesterol level (p=0.032), and a tendency towards reduction of the serum triglyceride level. The results indicate that teneligliptin acts not only to improve the blood glucose control, but also to improve the insulin resistance and serum lipid profile in Japanese type 2 diabetes patients.
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Affiliation(s)
- M Kusunoki
- Department of Internal Medicine, Medical Clinic, Aichi Medical University, Nagoya, Japan
| | - D Sato
- Department of Biomedical Information Engineering, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - T Nakamura
- Department of Biomedical Information Engineering, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - Y Oshida
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - H Tsutsui
- Department of Hygiene and Public Health, Teikyo University School of Medicine, Tokyo, Japan
| | - Y Natsume
- Department of Sports Medicine, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - K Tsutsumi
- Okinaka Memorial Institute for Medical Research, Tokyo, Japan
| | - T Miyata
- Vascular Center, Sanno Medical Center, Tokyo, Japan
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17
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Ishii K, Fujita M, Sasaki T, Minola M, Dellea G, Mazzoli C, Kummer K, Ghiringhelli G, Braicovich L, Tohyama T, Tsutsumi K, Sato K, Kajimoto R, Ikeuchi K, Yamada K, Yoshida M, Kurooka M, Mizuki J. High-energy spin and charge excitations in electron-doped copper oxide superconductors. Nat Commun 2014; 5:3714. [PMID: 24762677 DOI: 10.1038/ncomms4714] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 03/24/2014] [Indexed: 11/09/2022] Open
Abstract
The evolution of electronic (spin and charge) excitations upon carrier doping is an extremely important issue in superconducting layered cuprates and the knowledge of its asymmetry between electron- and hole-dopings is still fragmentary. Here we combine X-ray and neutron inelastic scattering measurements to track the doping dependence of both spin and charge excitations in electron-doped materials. Copper L3 resonant inelastic X-ray scattering spectra show that magnetic excitations shift to higher energy upon doping. Their dispersion becomes steeper near the magnetic zone centre and they deeply mix with charge excitations, indicating that electrons acquire a highly itinerant character in the doped metallic state. Moreover, above the magnetic excitations, an additional dispersing feature is observed near the Γ-point, and we ascribe it to particle-hole charge excitations. These properties are in stark contrast with the more localized spin excitations (paramagnons) recently observed in hole-doped compounds even at high doping levels.
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Affiliation(s)
- K Ishii
- SPring-8, Japan Atomic Energy Agency, Sayo, Hyogo 679-5148, Japan
| | - M Fujita
- Institute for Materials Research, Tohoku University, Katahira, Sendai 980-8577, Japan
| | - T Sasaki
- Institute for Materials Research, Tohoku University, Katahira, Sendai 980-8577, Japan
| | - M Minola
- CNR-SPIN and Dipartimento di Fisica, Politecnico di Milano, piazza Leonardo da Vinci 32, Milano I-20133, Italy
| | - G Dellea
- CNR-SPIN and Dipartimento di Fisica, Politecnico di Milano, piazza Leonardo da Vinci 32, Milano I-20133, Italy
| | - C Mazzoli
- CNR-SPIN and Dipartimento di Fisica, Politecnico di Milano, piazza Leonardo da Vinci 32, Milano I-20133, Italy
| | - K Kummer
- European Synchrotron Radiation Facility, 6 rue Jules Horowitz, Grenoble F-38043, France
| | - G Ghiringhelli
- CNR-SPIN and Dipartimento di Fisica, Politecnico di Milano, piazza Leonardo da Vinci 32, Milano I-20133, Italy
| | - L Braicovich
- CNR-SPIN and Dipartimento di Fisica, Politecnico di Milano, piazza Leonardo da Vinci 32, Milano I-20133, Italy
| | - T Tohyama
- 1] Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan [2]
| | - K Tsutsumi
- Institute for Materials Research, Tohoku University, Katahira, Sendai 980-8577, Japan
| | - K Sato
- Institute for Materials Research, Tohoku University, Katahira, Sendai 980-8577, Japan
| | - R Kajimoto
- Materials and Life Science Division, J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - K Ikeuchi
- Research Center for Neutron Science and Technology, Comprehensive Research Organization for Science and Society, Tokai, Ibaraki 319-1106, Japan
| | - K Yamada
- Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan
| | - M Yoshida
- 1] SPring-8, Japan Atomic Energy Agency, Sayo, Hyogo 679-5148, Japan [2] School of Science and Technology, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan
| | - M Kurooka
- School of Science and Technology, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan
| | - J Mizuki
- 1] SPring-8, Japan Atomic Energy Agency, Sayo, Hyogo 679-5148, Japan [2] School of Science and Technology, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan
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18
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Akhter F, Haque T, Sato F, Kato T, Ohara H, Fujio T, Tsutsumi K, Uchino K, Sessle BJ, Yoshida A. Projections from the dorsal peduncular cortex to the trigeminal subnucleus caudalis (medullary dorsal horn) and other lower brainstem areas in rats. Neuroscience 2014; 266:23-37. [PMID: 24502921 DOI: 10.1016/j.neuroscience.2014.01.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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: 09/19/2013] [Revised: 01/10/2014] [Accepted: 01/23/2014] [Indexed: 01/27/2023]
Abstract
This study has revealed direct projections from the dorsal peduncular cortex (DP) in the medial prefrontal cortex (mPfC) to the trigeminal brainstem sensory nuclear complex and other lower brainstem areas in rats. We first examined the distribution of mPfC neurons projecting directly to the medullary dorsal horn (trigeminal subnucleus caudalis [Vc]) and trigeminal subnucleus oralis (Vo) which are known to receive direct projections from the lateral prefrontal cortex (insular cortex). After injections of the retrograde tracer Fluorogold (FG) into the rostro-dorsomedial part of laminae I/II of Vc (rdm-I/II-Vc), many neurons were labeled bilaterally (with an ipsilateral predominance) in the rostrocaudal middle level of DP (mid-DP) and not in other mPfC areas. After FG injections into the lateral and caudal parts of laminae I/II of Vc, or the Vo, no neurons were labeled in the mPfC. We then examined projections from the mid-DP by using the anterograde tracer biotinylated dextranamine (BDA). After BDA injections into the mid-DP, many axons and terminals were labeled bilaterally (with an ipsilateral predominance) in the rdm-I/II-Vc, periaqueductal gray and solitary tract nucleus, and ipsilaterally in the parabrachial nucleus and trigeminal mesencephalic nucleus. In addition, the connections of the mid-DP with the insular cortex were examined. Many BDA-labeled axons and terminals from the mid-DP were also found ipsilaterally in the caudalmost level of the granular and dysgranular insular cortex (GI/DI). After BDA injections into the caudalmost GI/DI, many axons and terminals were labeled ipsilaterally in the mid-DP. The projections from the mid-DP to the rdm-I/II-Vc and other brainstem nuclei suggest that mid-DP neurons may regulate intraoral and perioral sensory processing (including nociceptive processing) of rdm-I/II-Vc neurons directly or indirectly through the brainstem nuclei. The reciprocal connections between the mid-DP and caudalmost GI/DI suggest that this regulation may involve mid-DP interactions with the caudalmost GI/DI neurons.
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Affiliation(s)
- F Akhter
- Department of Oral Anatomy and Neurobiology, Graduate School of Dentistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - T Haque
- Department of Oral Anatomy and Neurobiology, Graduate School of Dentistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - F Sato
- Department of Oral Anatomy and Neurobiology, Graduate School of Dentistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - T Kato
- Department of Oral Anatomy and Neurobiology, Graduate School of Dentistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - H Ohara
- Department of Oral Anatomy and Neurobiology, Graduate School of Dentistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - T Fujio
- Department of Oral Anatomy and Neurobiology, Graduate School of Dentistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - K Tsutsumi
- Department of Oral Anatomy and Neurobiology, Graduate School of Dentistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - K Uchino
- Department of Oral Anatomy and Neurobiology, Graduate School of Dentistry, Osaka University, Suita, Osaka 565-0871, Japan
| | - B J Sessle
- Department of Oral Physiology, Faculty of Dentistry, University of Toronto, Toronto, Ontario M5G 1G6, Canada
| | - A Yoshida
- Department of Oral Anatomy and Neurobiology, Graduate School of Dentistry, Osaka University, Suita, Osaka 565-0871, Japan.
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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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Yao J, Nishimura K, Mukai T, Takasaki T, Tsutsumi K, Aguey-Zinsou KF, Sakai T. LiMn0.97Al0.03O2 Based Carbon Fiber Electrode Possessing High Rate Capabilities for Li-Ion Batteries. ACTA ACUST UNITED AC 2012. [DOI: 10.1149/2.009206eel] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Yamazaki H, Tsutsumi K, Ishii K, Matsuyama S, Murozono K, Inoue J, Iwasaki S, Orihara H. Preparation of Thin Polycarbonate Film and Its Application to PIXE Analysis of Anionic Elements in Water Samples. ACTA ACUST UNITED AC 2011. [DOI: 10.1142/s0129083597000126] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A polycarbonate film of thin and uniform thickness was prepared. A casting solution for film-formation was made up by diluting a solution of poly (bisphenol A carbonate) in chloroform by a factor of two to three with benzene. A uniform film was created by dropping 0.2-0.3 cm3 of the casting solution slowly on a water surface within an aperture (20 mm diameter) of Mylar target frame floating on 50 wt% sucrose aqueous solution. Films of 0.14-0.27 mg/cm2 thickness thus prepared offer a good combination of mechanical strength and low continuum backgrounds. To test PIXE analysis of anionic species in water, targets containing SO 42-, Cr 2 O 72-, AsO 43-, and Ga 3+-internal standard were prepared by depositing 100 μl of the test solutions onto the polycarbonate film, and irradiated in vacuum by 3 MeV proton beams. The difference between the nominal and the analyzed concentrations seldom exceeded ± 15 % in the range from 10 to 2000 ppb.
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Affiliation(s)
- H. Yamazaki
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-77, Japan
| | - K. Tsutsumi
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-77, Japan
| | - K. Ishii
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-77, Japan
| | - S. Matsuyama
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-77, Japan
| | - K. Murozono
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-77, Japan
| | - J. Inoue
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-77, Japan
| | - S. Iwasaki
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-77, Japan
| | - H. Orihara
- Cyclotron and Radioisotope Center, Tohoku University, Sendai 980-77, Japan
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Tsutsumi K, Fujikawa H, Kajikawa T, Takedachi M, Yamamoto T, Murakami S. Effects of L-ascorbic acid 2-phosphate magnesium salt on the properties of human gingival fibroblasts. J Periodontal Res 2011; 47:263-71. [DOI: 10.1111/j.1600-0765.2011.01430.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Kato H, Kawamoto H, Yamamoto K, Noma Y, Sonoyama T, Tsutsumi K, Fujii M, Kurihara N, Okada H. A newly designed plastic stent for multiple occluded metallic stents deployed in malignant hilar biliary strictures. Endoscopy 2011; 43 Suppl 2 UCTN:E225-6. [PMID: 21614756 DOI: 10.1055/s-0030-1256318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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)
- H Kato
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Kira H, Sakaguchi Y, Oku T, Suzuki J, Nakamura M, Arai M, Endoh Y, Chang LJ, Kakurai K, Arimoto Y, Ino T, Shimizu HM, Kamiyama T, Ohoyama K, Hiraka H, Tsutsumi K, Yamada K. Developments of In-Situ SEOP Polarized3He Neutron Spin Filter in Japan. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/294/1/012014] [Citation(s) in RCA: 10] [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]
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Sakaguchi Y, Kira H, Oku T, Shinohara T, Suzuki J, Sakai K, Nakamura M, Suzuya K, Aizawa K, Arai M, Takeda M, Endoh Y, Chang LJ, Arimoto Y, Ino T, Shimizu HM, Kamiyama T, Ohoyama K, Hiraka H, Tsutsumi K, Yamada K, Ohara K, Kakurai K. Structure of glasses for3He neutron spin filter cells. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/294/1/012004] [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: 11/12/2022]
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26
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Miyoshi N, Ito S, Fukunaga Y, Hisazumi H, Tsutsumi K. A new type of LD 3 wavelength pulsed laser for PDD and PDT. Photodiagnosis Photodyn Ther 2011. [DOI: 10.1016/j.pdpdt.2011.03.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Zizzari Z, Machida R, Tsutsumi K, Reynoso-Velasco D, Lupetti P, Dallai R. Ultrastructural studies on euspermatozoa and paraspermatozoa in Mantispidae (Insecta, Neuroptera). Tissue Cell 2010; 42:81-7. [DOI: 10.1016/j.tice.2009.12.001] [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] [Received: 12/03/2009] [Accepted: 12/14/2009] [Indexed: 11/30/2022]
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28
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Tulin EE, Tsutsumi K, Ejiri S. Continuously coupled transcription-translation system for the production of rice cytoplasmic aldolase. Biotechnol Bioeng 2009; 45:511-6. [PMID: 18623251 DOI: 10.1002/bit.260450608] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A continuously coupled cell-free transcription-translation system was developed for the production of rice cytoplasmic aldolase, an enzyme involved in both glycolytic and gluconeogenic pathways in eukaryotic cells. The system works with a continuous flow of feeding solution containing nucleoside triphosphates and amino acids into a 1-mL reactor containing wheat-germ extract, plasmid DNA, and transcription enzyme, and continuous removal of translation product through an ultrafiltration membrane fitted in the reactor. Addition of free nucleotide primer, m(7)G(5')ppp(5')G, to this reactor was necessary for efficient transcription, thus producing biologically active mRNA for translation. The rate of aldolase synthesis was constant during the continuous translation reaction. It was observed that from 3 h onward only aldolase was synthesized by the system. After 30 h, the total amount of protein synthesized reached 205.6 microg, which is comparable with the amount synthesized (255.6 microg) in the translation system only where separately prepared capped mRNAs were added to the reactor for translation. Autoradiogram and Western blot analyses of the translated product showed a distinct band corresponding to the calculated molecular weight of the protein. These results have shown the establishment of a continuously coupled eukaryotic transcription-translation system for the expression of genes from eukaryotic cells.
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Affiliation(s)
- E E Tulin
- Institute for Cell Biology and Genetics, Faculty of Agriculture, Iwate University, Ueda, Morioka, Iwate 020, Japan
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29
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Tsutsumi K, Tsuda M, Yazawa N, Nakamura H, Yasuda M, Yamazaki R, Shirato H, Kawaguchi H, Ohba Y, Nishioka T. Cell Motility and Invasion of Surviving Tumor Cells after 10 Gy Irradiation. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.1230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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30
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Doshi A, Love C, Daoud E, Augostini R, Kalbfleisch S, Weiss R, Houmsse M, Hummel J, Patangay A, Siejko KZ, Da Cunha D, Pedraza A, Hamlin R, Binner L, Bodky J, Szendey I, Maunz M, Trautmann M, Kaltofen G, Eber B, Steiner A, Hero M, Guenoun M, Biffi M, Bertini M, Salomoni M, Bonfatti F, Balbo M, Martignani C, Ziacchi M, Boriani G, Choo WK, Tilling L, Gupta S, Adachi M, Igawa O, Yano A, Miake J, Inoue Y, Ogura K, Kato M, Iitsuka K, Freeman P, Huish J, Brooks V, Johns M, Ellis G, Bleasdale R, Galley D, Hoffmann E, Spitali G, Marras E, Prades E, Davy JM, Volkov D, Polivenok I, Shovkun S, Smirnov V, Boyko V, Tassin A, Vitali L, Treguer F, Breard G, Gaggini G, Kobeissi A, Furber A, Dupuis JM, Tassin A, Vitali L, Treguer F, Breard G, Gaggini G, Kobeissi A, Furber A, Dupuis JM, Hashizume K, Takahashi R, Inoue Y, Tsutsumi K, Suzuki S, Ishikawa N, Arie T, Stevenson RA, Dabney WS, Schaerf R, Develle R, Dalal Y, Snell JD, Bharmi R, Snell JR, Rooke R, Korsun N, Fatemi S, Morley B, Beynon RP, Pearce KA, Hill LM, Argyle RA, Ray SG, Davidson NC. Poster session 3: Pacemaker and sensor algorithm. Europace 2009. [DOI: 10.1093/europace/euq228] [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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31
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Kinoshita Y, Udagawa H, Tsutsumi K, Ueno M, Mine S, Ehara K. Surgical repair of refractory strictures of esophagogastric anastomoses caused by leakage following esophagectomy. Dis Esophagus 2009; 22:427-33. [PMID: 19191859 DOI: 10.1111/j.1442-2050.2008.00926.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Refractory strictures of esophagogastric anastomosis caused by leakage following an esophagectomy are a severe complication, for which either repeated balloon dilations or bougies are not necessarily effective. In such a case, surgical repair is quite difficult because the esophageal substitute such as the stomach or colon is usually located in the mediastinum and severely adhesive to the neighboring organs. Furthermore, in case the resected stricture is too long for direct re-anastomosis to be performed, a free jejunal graft or a new esophageal substitute should be prepared. This paper proposes a procedure for the re-reconstruction of refractory stricture in the case of a retrosternal reconstruction with a gastric conduit, which frequently employs pull-up route. The anterior plate of the manubrium was divided medially from the notch to the symphysis with the sternal saw. The manubrium is then removed, bite by bite, like breaking up rocks, with a bone rongeur forceps, starting with the anterior plate, then the posterior plate, from upper median part to the lower and lateral part of the sternum until it reaches the symphysis and the sternoclavicular and the sternocostal joints. It is safer to destroy the manubrium little by little from the anterior side so that the posterior periosteum, which is likely to adhere tightly to the gastric conduit, can be preserved. After the manubrium is almost completely resected and the posterior periosteum of the manubrium is preserved, a median longitudinal incision is carefully made on the periosteum so as not to damage the gastric conduit that may be adhesive to the periosteum. The periosteum was gradually opened bilaterally separating the periostium and the gastric conduit. Although gastroenterological surgeons may hesitate to remove the manubrium, removing the manubrium and preserving the posterior periosteum make it possible to avoid injuring the gastric conduit and to provide a wide view around the stenosis for safely resecting the anastomotic stricture. Furthermore, this procedure allows direct re-anastomosis between the cervical esophagus and the gastric conduit without a complicated reconstruction such as a free jejunal graft. This procedure is strongly recommended as an alternative option so that a second reconstruction can be performed both safely and steadily.
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Affiliation(s)
- Y Kinoshita
- Department of Gastroenterological Surgery, Toranomon Hospital, Minatoku, Tokyo, Japan.
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Inoue Y, Takahashi R, Kashima I, Tsutsumi K. Mediastinal hematoma: another lethal sign of aortic dissection. Interact Cardiovasc Thorac Surg 2008; 8:275-6. [DOI: 10.1510/icvts.2008.188979] [Citation(s) in RCA: 7] [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: 11/06/2022] Open
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33
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Mizuno O, Kawamoto H, Fukatsu H, Harada R, Tsutsumi K, Fujii M, Kurihara N, Nakanishi T, Ogawa T, Ishida E, Okada H, Sakaguchi K. An iatrogenic hepatic subcapsular biloma successfully treated by percutaneous drainage and endoscopic biliary stenting. Endoscopy 2008; 40 Suppl 2:E42-3. [PMID: 18300200 DOI: 10.1055/s-2007-966852] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- O Mizuno
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Nishioka T, Haga H, Miyai Y, Yasuda M, Tsutsumi K, Yamazaki R, Shirato H, Kawabata K. Three-Dimensional Tumor Cell Movement in Collagen Gel: Mesenchymal-to-Amoeboid Transition in a Sub-Clone That Survived 10 Gy Irradiation. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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35
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Kawamoto H, Tsutsumi K, Fujii M, Harada R, Kato H, Hirao K, Kurihara N, Nakanishi T, Mizuno O, Ishida E, Ogawa T, Fukatsu H, Sakaguchi K. Multiple stenting in a patient with a high-grade malignant hilar biliary stricture: endoscopic four-branched partial stent-in-stent deployment of metallic stents. Endoscopy 2007; 39 Suppl 1:E167-8. [PMID: 17614071 DOI: 10.1055/s-2007-966612] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 12/10/2022]
Affiliation(s)
- H Kawamoto
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine and Dentistry, Okayama City, Japan.
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36
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Harada R, Kawamoto H, Fukatsu H, Tsutsumi K, Fujii M, Kurihara N, Ogawa T, Ishida E, Okamoto Y, Okada H, Sakaguchi K. Combined endoscopic ultrasound-guided choledochoduodenostomy and duodenal stent placement in a patient with pancreatic cancer. Endoscopy 2007; 39 Suppl 1:E284-5. [PMID: 17957637 DOI: 10.1055/s-2007-966707] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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)
- R Harada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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37
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Fukatsu H, Kawamoto H, Tsutsumi K, Kato H, Hirao K, Kurihara N, Ogawa T, Ishida E, Okamoto Y, Okada H, Sakaguchi K, Yanai H. Intraductal tubular adenoma, pyloric gland-type, of the pancreas. Endoscopy 2007; 39 Suppl 1:E88-9. [PMID: 17440871 DOI: 10.1055/s-2006-945159] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [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: 12/10/2022]
Affiliation(s)
- H Fukatsu
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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38
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Fukatsu H, Kawamoto H, Fujii M, Tsutsumi K, Kato H, Hirao K, Kurihara N, Okamoto Y, Ogawa T, Ishida E, Okada H, Sakaguchi K. Periampullary carcinoid tumor. Endoscopy 2007; 39 Suppl 1:E49-50. [PMID: 17285506 DOI: 10.1055/s-2006-945068] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- H Fukatsu
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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39
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Fukatsu H, Kawamoto H, Harada R, Tsutsumi K, Fujii M, Kurihara N, Ogawa T, Ishida E, Okamoto Y, Okada H, Sakaguchi K. Gastric fundal varices with an exposed microcoil after the combined BRTO and PTO therapy. Endoscopy 2007; 39 Suppl 1:E247-8. [PMID: 17957640 DOI: 10.1055/s-2007-966370] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- H Fukatsu
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Abstract
PURPOSE To determine whether the signal changes on magnetic resonance imaging (MRI), including fluid attenuated inversion recovery (FLAIR), T2*-weighted gradient echo (GE) imaging, and diffusion-weighted imaging (DWI) in diffuse axonal injury (DAI) patients correlate with the clinical outcome. MATERIAL AND METHODS We diagnosed patients with DAI based on the following criteria: 1) a loss of consciousness from the time of injury that persisted beyond 6 h; 2) no apparent hemorrhagic contusion on computed tomography (CT); 3) the presence of white matter injury on MRI. Twenty-one DAI patients were analyzed (19 M, 2 F, mean age 34 years) with MRI (FLAIR, T2*-weighted GE imaging, and DWI). RESULTS 325 abnormalities were detected by MRI within a week after injury. The T2*-weighted GE imaging was significantly more sensitive than FLAIR and DWI in diagnosing DAI. DWI detected only 32% of all lesions, but could depict additional shearing injuries not visible on either T2*-weighted GE imaging or FLAIR. The mean number of lesions in brainstem detected by DWI in the favorable group (good recovery/moderately disabled) was significantly smaller than in the unfavorable group (severely disabled/vegetative survival/death). This trend was not observed on the T2*-weighted GE imaging and FLAIR findings. CONCLUSION DWI cannot detect all DAI-related lesions, but is a potentially useful imaging modality for both diagnosing and assessing patients with DAI.
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Affiliation(s)
- Y Ezaki
- Department of Neurosurgery, Nagasaki University Graduate School of Medicine, Nagasaki, Japan.
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41
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Miura D, Kitagawa D, Tsutsumi K. Adding paclitaxel to trastuzumab enhances antibody-dependent cell-mediated cytotoxicity via increment of natural killer cells in patients with Her-2 overexpressing breast cancer. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.10548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
10548 Background: One of the mechanisms by which trastuzumab (TZ) inhibits the growth of Her-2 overexpressing breast cancer cells is the activation of a host tumor response via antibody-dependent cell-mediated cytotoxicity (ADCC). We questioned whether adding PTX to TZ enhances ADCC and also investigated kinetics of effector cells in ADCC. Methods: In ADCC, 5 cases with metastatic breast cancer receiving TZ (4mg/kg as a loading and 2 mg/kg weekly) with PTX (2qw, 100 mg/m2) were investigated. ADCC was analyzed by 51Cr releasing assay using SK-BR-3 cell line and white blood cells taken at the time of pretreatment, after 4 mg/kg of TZ, before/after 2 mg/kg of TZ, and before/after 2 mg/kg of TZ plus PTX. In of effector cell studies, we investigated fractions of natural killer (NK) cell, monocyte, and neutrophil taken at pre-administration and 10 minutes post-administration in 16 patients with Her-2 overexpressing breast cancer receiving weekly TZ and PTX (80 mg/m2). We defined NK cells as being both CD16+ (FcγRIII) and CD56+ and neutrophils as CD64+ (FcγRI) by flow cytometry. Results: Compared with pretreatment ADCC level, cytotoxicity were enhanced to 220% (median, ranging 30–259) after 4 mg/kg of TZ, 129% (78–210) after 2 mg/kg of TZ, and 148% (42–557) after the combination of TZ and PTX, whereas suppressed to 94% (48–163) after PTX alone. 2 weeks after the combination therapy, ADCC was significantly enhanced to 169% (113–257, p<0.05), compared with pre-treatment. In effector cells, NK cells increased in 131% (74–175, p<0.05) by TZ and in 224% (169–286, p<0.05) by the combination therapy. No significant changes were found in monocytes (98%, 50–160) and in neutrophils (100%, 50–160) by TZ alone, however monocytes decreased to 44% (34–50, p<0.05) and also neutrophils did to 49% (9–133) by the combination. Conclusions: Higher doses of TZ induced NK cell recruitment and the combination of TZ and PTX has a significant increase in recruitment and activation of NK cells. Adding PTX to TZ significantly enhanced ADCC via the rapid kinetics of NK cells. This may reflect that the combination of TZ and PTX has a strong synergistic effect than we expected in patients with Her-2 overexpressing breast cancer. [Table: see text]
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Affiliation(s)
- D. Miura
- Toranomon Hospital, Tokyo, Japan
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42
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Ezaki Y, Tsutsumi K, Morikawa M, Nagata I. Lesions identified on T2*-weighted gradient echo images in two patients with suspected diffuse axonal injury that resolved in less than ten days. Acta Neurochir (Wien) 2006; 148:547-50; discussion 550. [PMID: 16341631 DOI: 10.1007/s00701-005-0692-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2005] [Accepted: 10/19/2005] [Indexed: 10/25/2022]
Abstract
T2*-weighted gradient echo (GE) imaging is useful for detection of intracranial hemorrhage in the patients with diffusion axonal injury (DAI). However, the temporal changes in the DAI-related lesions on T2*-weighted GE images are not clear. We report two very rare cases with DAI in which lesions identified on T2*-weighted GE images resolved in less than ten days.
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Affiliation(s)
- Y Ezaki
- Department of Neurosurgery, Nagasaki University Graduate School of Medicine, Nagasaki, Japan.
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43
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Horie N, Morikawa M, Kitigawa N, Tsutsumi K, Kaminogo M, Nagata I. 2D Thick-section MR digital subtraction angiography for the assessment of dural arteriovenous fistulas. AJNR Am J Neuroradiol 2006; 27:264-9. [PMID: 16484389 PMCID: PMC8148811] [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: 05/06/2023]
Abstract
BACKGROUND AND PURPOSE Although dynamic contrast-enhanced MR angiography studies for arteriovenous malformations (AVFs) and brain tumors have shown promising results, no formal attempt has yet been made to similarly evaluate dural AVFs. To assess the practical applicability of 2D thick-section contrast enhanced MR digital subtraction angiography (MRDSA) for the diagnosis and management of dural AVFs, MRDSA and intra-arterial digital subtraction angiography (IADSA) were comparatively evaluated. METHODS We performed 80 consecutive MRDSA studies for 25 dural AVFs, including 11 cavenous sinuses, 9 sigmoid sinuses, 2 tentorial sinuses, one anterior condylar vein, one craniocervical junction, and one spine. MR images were continuously obtained following the initiation of a bolus injection of gadrinium chelates and subtraction images were constructed. We thereafter evaluated the imaging quality and hemodynamic information from all 46 MRDSA images performed in parallel with IADSA in either perioperative or follow-up studies. RESULTS Most MRDSA images detected early venous filling, sinus occlusion, leptomeningeal venous drainage, and varices. It was difficult, however, to identify the feeding arteries because of both the partial volume effect and a low spatial resolution. Most important, MRDSA accurately detected aggressive lesions with leptomeningeal venous drainage and varices. CONCLUSION Our MRDSA technique was found to have limited value for depicting all the anatomic details of dural AVFs, though it was able to identify important hemodynamic abnormalities related to the risk of hemorrhaging. MRDSA is therefore useful as a less invasive, dynamic angiographic tool, not only for perioperative studies but also for follow-up studies.
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Affiliation(s)
- N Horie
- Department of Neurosurgery and Radiology, Nagasaki University School of Medicine, Nagasaki-shi, Nagasaki, Japan
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44
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Liu Y, Yin W, Wang W, Li Q, Cai M, Tsutsumi K, Zhang C, Xiao J, Hou H, Li H. Th-P16:327 NO-1886 alleviates atherosclerosis of renal artery and glomerulosclerosis in high-fat/high-sucrose/high-cholesterol diet-fed minipigs. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)82285-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Tanimura S, Tsutsumi K, Okura M, Tanaka N, Yamamoto H, Honma K, Aida Y. [Successful removal of T4 lung cancer with left atrial invasion after induction chemotherapy]. Kyobu Geka 2005; 58:988-91. [PMID: 16235848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
A 53-year-old man presented with cough, sputa and chest pain. The chest X-ray revealed a large mass shadow in the right lower lobe. Massive tumor extending into the left atrium was diagnosed by computed tomography (CT). The brushing cytology by broncoscopy was squamous cell carcinoma and its stage was IIIB. Chemothrapy using cisplatin, paclitaxel and gemcitabine hydrochloride was performed 8 courses during 6 months. The effect of the chemotherapy was complete response, enabling the surgical treatment. The right pneumonectomy with partial resection of the left atrium was performed by using vascular clamp. The defect of the left atrium could be sutured directly. Wide-spread necrotic change with very small amount of cancer cells in the atrial wall was confirmed by pathology. The patient has been well for 3 years and 6 months after surgery.
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Affiliation(s)
- S Tanimura
- Department of Respiratory Surgery, Sagamihara Kyodo Hospital, Sagamihara, Japan
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46
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Kinoshita Y, Udagawa H, Tsutsumi K, Ueno M, Nakamura T, Iizuka T, Matsuda M, Hashimoto M, Sawada T, Watanabe G, Takahashi K, Tsuno H, Wada A, Inagawa H. Bacteriological study of autologous cryoprecipitate-derived fibrin glue as the operative sealant. Transfus Med 2005; 15:429-33. [PMID: 16202059 DOI: 10.1111/j.1365-3148.2005.00604.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fibrin glue (FG) is frequently used to seal and cover the anastomoses in many operations such as cardiovascular surgery or orthopaedic surgery. However, in case of gastrointestinal surgery, anastomoses are potentially contaminated, and FG may promote bacterial growth, increasing the risk of leakage. The purpose of this study was to examine the effect of cryoprecipitate-derived FG (CryoFG) on bacterial growth. Bacterial growth on the CryoFG and on the commercial FG (Beriplast P) was evaluated and compared with that on control medium. In addition, the complement activities were evaluated by heat inactivation or addition of guinea-pig complement to the experimental settings. The CryoFG inhibited the growth of Escherichia coli, whereas the commercial FG had no effect. Heat inactivation of the CryoFG inhibited the bactericidal effect of CryoFG. Addition of guinea-pig complement to the heat-inactivated CryoFG could almost restore the bactericidal activity, suggesting the important role of complement. This study showed that the CryoFG preserved the complement activity, which inhibited the in vitro growth of E. coli. Therefore, we concluded that the application of the CryoFG for gastrointestinal surgical anastomoses not only would be safe but also has the advantage of reducing bacterial infection.
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Affiliation(s)
- Y Kinoshita
- Department of Surgery, Toranomon Hospital, Tokyo, Japan.
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47
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Tsutsumi K, Udagawa H, Kinoshita Y, Ueno M, Mine S, Kajiyama Y, Tsurumaru M. Salvage surgery (SS) versus elective surgery (ES) after chemoradiotherapy (CRT) for locally advanced esophageal cancer. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.4176] [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: 11/20/2022] Open
Affiliation(s)
- K. Tsutsumi
- Toranomon Hospital, Tokyo, Japan; Juntendo University School of Medicine, Tokyo, Japan
| | - H. Udagawa
- Toranomon Hospital, Tokyo, Japan; Juntendo University School of Medicine, Tokyo, Japan
| | - Y. Kinoshita
- Toranomon Hospital, Tokyo, Japan; Juntendo University School of Medicine, Tokyo, Japan
| | - M. Ueno
- Toranomon Hospital, Tokyo, Japan; Juntendo University School of Medicine, Tokyo, Japan
| | - S. Mine
- Toranomon Hospital, Tokyo, Japan; Juntendo University School of Medicine, Tokyo, Japan
| | - Y. Kajiyama
- Toranomon Hospital, Tokyo, Japan; Juntendo University School of Medicine, Tokyo, Japan
| | - M. Tsurumaru
- Toranomon Hospital, Tokyo, Japan; Juntendo University School of Medicine, Tokyo, Japan
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Kitajima S, Morimoto M, Liu E, Koike T, Higaki Y, Taura Y, Mamba K, Itamoto K, Watanabe T, Tsutsumi K, Yamada N, Fan J. Overexpression of lipoprotein lipase improves insulin resistance induced by a high-fat diet in transgenic rabbits. Diabetologia 2004; 47:1202-1209. [PMID: 15221136 DOI: 10.1007/s00125-004-1429-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [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: 12/11/2003] [Accepted: 03/01/2004] [Indexed: 10/26/2022]
Abstract
AIMS/HYPOTHESIS Dysfunctions of lipoprotein lipase (LPL) have been found to be associated with dyslipidaemias, atherosclerosis, obesity and insulin resistance. There are two conflicting hypotheses regarding the roles of LPL in glucose metabolism and insulin resistance. Whether systemically increased LPL activity would be beneficial or detrimental to insulin sensitivity is yet to be resolved. To address this issue, we studied transgenic rabbits overexpressing human LPL transgene. METHODS LPL transgenic and control rabbits were fed a 10% high-fat diet (HFD) for 16 weeks. To evaluate glucose metabolism, we compared plasma levels of glucose and insulin in transgenic rabbits with control rabbits and performed an intravenous glucose tolerance test. In addition, we measured adipose tissue accumulation in HFD-fed rabbits. RESULTS Increased LPL activity in transgenic rabbits resulted in a significant reduction of plasma triglycerides and non-esterified fatty acids, but not in basal levels of glucose and insulin. HFD feeding induced an elevation of plasma glucose levels accompanied by hyperinsulinaemia in control rabbits, but was significantly inhibited in transgenic rabbits. The intravenous glucose tolerance test showed that transgenic rabbits had faster glucose clearance associated with lower levels of insulin secretion than control rabbits. In addition, there was a significant reduction of body adipose tissue in transgenic rabbits compared with in control rabbits fed an HFD. Scanning electron microscopic examination revealed that adipocytes in transgenic rabbits were predominately small cells. CONCLUSIONS/INTERPRETATION Our results showed that systemically increased LPL activity improves insulin resistance and reduces adipose accumulation in transgenic rabbits, indicating that systemic elevation of LPL may have potential benefits for the treatment of insulin resistance and obesity.
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Affiliation(s)
- S Kitajima
- Analytical Research Center for Experimental Sciences, Saga Medical School, 5-1-1 Nabeshima, Saga 849-8501, Japan.
| | - M Morimoto
- Analytical Research Center for Experimental Sciences, Saga Medical School, 5-1-1 Nabeshima, Saga 849-8501, Japan
| | - E Liu
- Analytical Research Center for Experimental Sciences, Saga Medical School, 5-1-1 Nabeshima, Saga 849-8501, Japan
| | - T Koike
- Cardiovascular Disease Laboratory, Department of Pathology, Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, Japan
| | - Y Higaki
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Y Taura
- Department of Veterinary Surgery, Veterinary Clinical Science, Yamaguchi University, Yamaguchi, Japan
| | - K Mamba
- United Graduate School of Veterinary Sciences, Yamaguchi University, Yamaguchi, Japan
| | - K Itamoto
- Department of Veterinary Surgery, Veterinary Clinical Science, Yamaguchi University, Yamaguchi, Japan
| | | | - K Tsutsumi
- Otsuka Pharmaceutical Factory, Tokushima, Japan
| | - N Yamada
- Department of Metabolism and Endocrinology, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Japan
| | - J Fan
- Cardiovascular Disease Laboratory, Department of Pathology, Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, Japan
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Yin W, Liao D, Kusunoki M, Xi S, Tsutsumi K, Wang Z, Lian X, Koike T, Fan J, Yang Y, Tang C. NO-1886 decreases ectopic lipid deposition and protects pancreatic beta cells in diet-induced diabetic swine. J Endocrinol 2004; 180:399-408. [PMID: 15012594 DOI: 10.1677/joe.0.1800399] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The synthetic compound NO-1886 (ibrolipim) is a lipoprotein lipase activator that has been proven to be highly effective in lowering plasma triglycerides. Recently, we found that NO-1886 also reduced plasma free fatty acids and glucose in high-fat/high-sucrose diet-induced diabetic rabbits. In the current study, we investigated the effects of NO-1886 treatment on ectopic lipid deposition and the islet pathology in miniature swine fed a high-fat/high-sucrose diet. Our results showed that feeding this diet to miniature swine caused insulin resistance, increased lipid deposition in non-adipose tissue, such as in the heart, skeletal muscle, liver and pancreas, and also caused pancreatic beta cell damage. However, supplementing 1% NO-1886 (200 mg/kg per day) into the high-fat/high-sucrose diet decreased ectopic lipid deposition, improved insulin resistance, and alleviated the beta cell damage. These results suggest that improvement of lipid disorder, non-adipose tissue steatosis and insulin resistance may be very important for the protection of beta cell damage. Therefore, NO-1886 is potentially beneficial for the treatment of insulin-resistance syndrome.
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Affiliation(s)
- W Yin
- Department of Biochemistry and Biotechnology, Nanhua University School of Life Sciences and Technology, Hengyang, Hunan 421001, China.
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Yin W, Tsutsumi K. Lipoprotein lipase activator: Efficacy in lipid metabolism and related diseases. DRUG FUTURE 2004. [DOI: 10.1358/dof.2004.029.01.782754] [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: 10/25/2022]
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