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Takaishi M, Ishimoto T, Tokunaga M, Kokubu C, Takeda J, Sano S. 104 Ahed, a novel spliceosomal protein, is essential for the development and maintenance of the epidermis through regulation of mRNA splicing. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.08.107] [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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Makishima H, Nannya Y, Momozawa Y, Gurnari C, Kulasekararaj A, Yoshizato T, Takeda J, Atsuta Y, Shiozawa Y, Iijima-Yamashita Y, Saiki R, Yoshida K, Shiraishi Y, Nagata Y, Onizuka M, Nakagawa M, Itonaga H, Kanda Y, Miyazaki Y, Sanada M, Tsurumi H, Kasahara S, Kondo-Takaori A, Ohyashiki K, Kiguchi T, Matsuda F, Jansen J, Papaemmanuil E, Creignou M, Tobiasson M, Hellström-Lindberg E, Polprasert C, Malcovati L, Cazzola M, Haferlach T, Maciejewski J, Kamatani Y, Miyano S, Ogawa S. Topic: AS04-MDS Biology and Pathogenesis/AS04b-Clonal diversity & evolution. Leuk Res 2021. [DOI: 10.1016/j.leukres.2021.106679.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Morisaka H, Yoshimi K, Okuzaki Y, Hotta A, Takeda J, Mashimo T, Sano S. 283 Possibility of therapeutic application to autosomal dominant dystrophic epidermolysis bullosa using large deletion genome editing with CRISPR-Cas3. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Takaishi M, Ishimoto T, Tokunaga M, Kokubu C, Takeda J, Sano S. 213 Ahed plays crucial roles in growth and differentiation of epidermal keratinocytes. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.214] [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: 11/30/2022]
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Ishimoto T, Takaishi M, Tokunaga M, Kokubu C, Takeda J, Sano S. 645 Ahed plays crucial roles in homeostatic maintenance of epidermis. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Hiramoto N, Takeda J, Yoshida K, Ono Y, Yoshioka S, Yamauchi N, Fujimoto A, Maruoka H, Shiraishi Y, Tanaka H, Chiba K, Imai Y, Miyano S, Ogawa S, Ishikawa T. Donor cell-derived transient abnormal myelopoiesis as a specific complication of umbilical cord blood transplantation. Bone Marrow Transplant 2017; 53:225-227. [PMID: 28991249 DOI: 10.1038/bmt.2017.226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- N Hiramoto
- Department of Cell Therapy, Institute of Biomedical Research and Innovation, Kobe, Japan
| | - J Takeda
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - K Yoshida
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y Ono
- Department of Hematology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - S Yoshioka
- Department of Hematology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - N Yamauchi
- Department of Hematology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - A Fujimoto
- Department of Hematology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - H Maruoka
- Department of Clinical Laboratory, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Y Shiraishi
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - H Tanaka
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - K Chiba
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Y Imai
- Department of Clinical Pathology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - S Miyano
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - S Ogawa
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Ishikawa
- Department of Hematology, Kobe City Medical Center General Hospital, Kobe, Japan
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Morisaka H, Sano S, Takeda J. 490 Genome editing in mammalian cells by cascade and Cas3. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Togasaki E, Takeda J, Yoshida K, Shiozawa Y, Takeuchi M, Oshima M, Saraya A, Iwama A, Yokote K, Sakaida E, Hirase C, Takeshita A, Imai K, Okumura H, Morishita Y, Usui N, Takahashi N, Fujisawa S, Shiraishi Y, Chiba K, Tanaka H, Kiyoi H, Ohnishi K, Ohtake S, Asou N, Kobayashi Y, Miyazaki Y, Miyano S, Ogawa S, Matsumura I, Nakaseko C, Naoe T. Frequent somatic mutations in epigenetic regulators in newly diagnosed chronic myeloid leukemia. Blood Cancer J 2017; 7:e559. [PMID: 28452984 PMCID: PMC5436079 DOI: 10.1038/bcj.2017.36] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [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: 02/17/2017] [Accepted: 03/06/2017] [Indexed: 01/30/2023] Open
Abstract
Although tyrosine kinase inhibitors (TKIs) have significantly improved the prognosis of chronic myeloid leukemia (CML), the ability of TKIs to eradicate CML remains uncertain and patients must continue TKI therapy for indefinite periods. In this study, we performed whole-exome sequencing to identify somatic mutations in 24 patients with newly diagnosed chronic phase CML who were registered in the JALSG CML212 study. We identified 191 somatic mutations other than the BCR-ABL1 fusion gene (median 8, range 1–17). Age, hemoglobin concentration and white blood cell counts were correlated with the number of mutations. Patients with mutations ⩾6 showed higher rate of achieving major molecular response than those<6 (P=0.0381). Mutations in epigenetic regulator, ASXL1, TET2, TET3, KDM1A and MSH6 were found in 25% of patients. TET2 or TET3, AKT1 and RUNX1 were mutated in one patient each. ASXL1 was mutated within exon 12 in three cases. Mutated genes were significantly enriched with cell signaling and cell division pathways. Furthermore, DNA copy number analysis showed that 2 of 24 patients had uniparental disomy of chromosome 1p or 3q, which disappeared major molecular response was achieved. These mutations may play significant roles in CML pathogenesis in addition to the strong driver mutation BCR-ABL1.
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Affiliation(s)
- E Togasaki
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - J Takeda
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - K Yoshida
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y Shiozawa
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - M Takeuchi
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - M Oshima
- Department of Cellular and Molecular Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - A Saraya
- Department of Cellular and Molecular Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - A Iwama
- Department of Cellular and Molecular Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - K Yokote
- Department of Clinical Cell Biology and Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - E Sakaida
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - C Hirase
- Department of Hematology and Rheumatology, Faculty of Medicine, Kinki University, Osaka, Japan
| | - A Takeshita
- Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - K Imai
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - H Okumura
- Department of Internal Medicine, Toyama Prefectural Central Hospital, Toyama, Japan
| | - Y Morishita
- Department of Hematology and Oncology, JA Aichi Konan Kosei Hospital, Konan, Japan
| | - N Usui
- Division of Clinical Oncology and Hematology, Department of Internal Medicine, The Jikei University Daisan Hospital, Tokyo, Japan
| | - N Takahashi
- Department of Hematology, Nephrology and Rheumatology, Akita University Graduate School of Medicine, Akita, Japan
| | - S Fujisawa
- Department of Hematology, Yokohama City University Medical Center, Yokohama, Japan
| | - Y Shiraishi
- Laboratory of DNA Information Analysis, Human Genome Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - K Chiba
- Laboratory of DNA Information Analysis, Human Genome Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - H Tanaka
- Laboratory of DNA Information Analysis, Human Genome Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - H Kiyoi
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Ohnishi
- Japanese Red Cross Aichi Blood Center, Seto, Japan
| | - S Ohtake
- Department of Clinical Laboratory Science, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - N Asou
- Department of Hemato-Oncology, Comprehensive Cancer Center, International Medical Center, Saitama Medical University, Saitama, Japan
| | - Y Kobayashi
- Division of Hematology, National Cancer Center Hospital, Tokyo, Japan
| | - Y Miyazaki
- Department of Hematology and Molecular Medicine Unit, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - S Miyano
- Laboratory of DNA Information Analysis, Human Genome Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,Laboratory of Sequence Analysis, Human Genome Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - S Ogawa
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - I Matsumura
- Department of Cellular and Molecular Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - C Nakaseko
- Department of Hematology, Chiba University Hospital, Chiba, Japan
| | - T Naoe
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,National Hospital Organization Nagoya Medical Center, Nagoya, Japan
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Ishiyama K, Takeda J, Kondo T, Sugimoto N, Kawabata H, Kitano T, Takaori-Kondo A. Feasibility of salvage cord blood transplantation following fludarabine, melphalan and low-dose TBI for graft rejection after hematopoietic stem cell transplantation. Bone Marrow Transplant 2016; 51:985-7. [PMID: 26878662 DOI: 10.1038/bmt.2016.16] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- K Ishiyama
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - J Takeda
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Kondo
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - N Sugimoto
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - H Kawabata
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Kitano
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - A Takaori-Kondo
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Kamei K, Nakatani H, Takeda J, Takeda R, Watabe Y, Kobayakawa M. Surgical treatment of intracapsular fracture of condyle. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.159] [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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Hano T, Baba A, Takeda J, Nishio I, Masuyama Y. Antihypertensive effects of oral calcium supplementation in spontaneously hypertensive rats. Contrib Nephrol 2015; 90:36-41. [PMID: 1959353 DOI: 10.1159/000420120] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This study was designed to clarify the mechanisms underlying the antihypertensive action of oral calcium supplementation in SHR. Four-week-old SHR and age-matched WKY were divided into calcium-supplemented and control groups. Calcium supplementation was carried out by giving 1.2% CaCl2 solution as drinking water ad libitum. Distilled water was given to the control group. After 3 weeks of treatment, plasma NE, pressor response to NE in isolated mesenteric artery, platelet cytosolic free calcium concentration and membrane fluidity of erythrocytes were evaluated. The elevation of blood pressure were retarded in calcium supplemented SHR. Calcium supplementation reduced the augmented pressor response to NE and the high level of cytosolic free calcium concentration in SHR. WKY showed no significant changes of these parameters by calcium supplementation. In conclusion, calcium supplementation reduces blood pressure through the reduction of sympathetic and vascular tone in SHR.
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Affiliation(s)
- T Hano
- Department of Medicine, Wakayama Medical College, Japan
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Nonaka M, Okita Y, Kanemura Y, Goto H, Kamei T, Iwata R, Takeda J, Oshige H, Yoshimura K, Asai A. NT-27 * SURGICAL RESECTION OF THALAMIC MALIGNANT GLIOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou265.25] [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: 11/13/2022] Open
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Horikawa Y, Enya M, Fushimi N, Fushimi Y, Takeda J. Screening of diabetes of youth for hepatocyte nuclear factor 1 mutations: clinical phenotype of HNF1β-related maturity-onset diabetes of the young and HNF1α-related maturity-onset diabetes of the young in Japanese. Diabet Med 2014; 31:721-7. [PMID: 24905847 DOI: 10.1111/dme.12416] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [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: 07/31/2013] [Revised: 12/01/2013] [Accepted: 02/12/2014] [Indexed: 02/06/2023]
Abstract
AIM To compare the prevalence and clinical features of HNF1β-related MODY and HNF1α-related MODY in Japanese. METHODS We enrolled 230 Japanese patients with suspected MODY and examined them for HNF1α and HNF1β mutations. We characterized the clinical features of HNF1β-related MODY (HNF1β-MODY) and HNF1α-related MODY (HNF1α-MODY). RESULTS Six patients had HNF1β mutations, four of which were large gene deletions and 24 patients had HNF1α mutations, which included one gene deletion. The mean fasting plasma glucose level at onset of HNF1β-MODY was considerably higher and the age of onset of HNF1β-MODY was considerably older than they were for HNF1α-MODY, while the mean BMI and C-peptide index at onset were similar. Three patients with HNF1β-MODY were found to have dorsal pancreatic agenesis and four of them had whole-gene deletion. Five of the patients with HNF1β-MODY had insulin secretion defects and were treated with insulin, and four of these did not have a parent with overt diabetes. CONCLUSION HNF1β-MODY may present as β-cell dysfunction in Japanese rather than as hyperinsulinaemia, which it does among European/American. This dysfunction might result from an intrinsically lower capacity for insulin secretion in Japanese. HNF1β-MODY has an older age of onset than HNF1α-MODY, which may suggest lower penetrance of the disease. In addition, HNF1β-MODY has a broad spectrum of clinical manifestations, some of which are detectable by imaging. This may be helpful in some cases for selecting HNF1β-MODY candidates for genetic testing.
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Affiliation(s)
- Y Horikawa
- Department of Diabetes and Endocrinology, Gifu University, Graduate School of Medicine, Gifu, Japan
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Osaka Y, Onimaru H, Kotani S, Kashiwagi M, Morisaki H, Takeda J. The effects of doxapram on medullary respiratory neurones in brainstem-spinal cord preparations from newborn rats. Anaesthesia 2014; 69:468-75. [DOI: 10.1111/anae.12590] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2013] [Indexed: 11/26/2022]
Affiliation(s)
- Y. Osaka
- Department of Anesthesiology; Tokyo Metropolitan Ohtsuka Hospital; Tokyo Japan
| | - H. Onimaru
- Department of Physiology; Showa University School of Medicine; Tokyo Japan
| | - S. Kotani
- Department of Physiology; Showa University School of Medicine; Tokyo Japan
| | - M. Kashiwagi
- Department of Anesthesiology; Kitasato Institute Hospital; Kitasato University; Tokyo Japan
| | - H. Morisaki
- Department of Anesthesiology; School of Medicine; Keio University; Tokyo Japan
| | - J. Takeda
- Department of Anesthesiology; School of Medicine; Keio University; Tokyo Japan
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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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Mori K, Igarashi T, Inoue K, Suzuki T, Morisaki H, Takeda J. Neutrophil gelatinase-associated lipocalin/lipocalin2, derived from gut crypt cells, exerts intestinal antimicrobial effect via bacterial stimulation of Toll-like receptor 4 and 9. Crit Care 2013. [PMCID: PMC3642430 DOI: 10.1186/cc11952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kabasawa Y, Eda T, Hu J, Katayama I, Takeda J, Kitajima M, Katagiri T, Sasagawa T, Nakamura KG. Ultrafast quasiparticle dynamics of FeTe0.75Se0.25superconductor. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20134103009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Shudo K, Doi K, Katayama I, Kitajima M, Takeda J. Ultrafast Measurements of Coherent Vibrations in Benzenethiol Monolayer Film. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20134105013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Katayama I, Tahara K, Takeda J, Yanagi K, Tang J, Kitajima M. Resonant Enhancement of Coherent Phonons in Carbon Nanotubes Observed with Sub-10fs Time Resolution. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20134104028] [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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Yorifuji T, Makino S, Takeda J, Inagaki T, Sugimura M, Takeda S. W164 A CASE OF PREGNANCY COMPLICATED BY ADENOMYOSIS RESULTING IN SEVERE FETAL GROWTH RETARDATION. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)61889-x] [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: 10/27/2022]
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Kotake Y, Yamada T, Nagata H, Takeda J, Shimizu H. Descending aortic blood flow during aortic cross-clamp indicates postoperative splanchnic perfusion and gastrointestinal function in patients undergoing aortic reconstruction. Br J Anaesth 2012; 108:936-42. [PMID: 22474310 DOI: 10.1093/bja/aes095] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The purpose of this observational study was to investigate the relationship between splanchnic and renal blood flow during infrarenal aortic cross-clamp (XC) and postoperative gastrointestinal perfusion and function. METHODS Descending aortic blood flow (DABF) was continuously monitored with an oesophageal Doppler monitor (Cardio-Q, Deltex Ltd, Chichester, UK) in 31 patients undergoing elective abdominal aortic aneurysm repair. Cardiac output (CO) was determined by indocyanine green dilution before, during, and after XC. Perioperative gastrointestinal perfusion was assessed by gastric intramucosal pH (pHi, Tonocap, GE Healthcare, Helsinki, Finland). Postoperative gastrointestinal recovery was assessed by the number of postoperative days until the patient successfully resumed solid food intake. The relationship between the mean DABF during XC and gastric pHi after XC release and postoperative gastrointestinal recovery was analysed with Spearman's correlation coefficient. RESULTS accounted for ∼ 55% of CO during XC and significantly decreased during XC, despite arterial pressure remaining within an optimal range. There were two distinct relationships between DABF during XC and gastric pHi after XC release. Gastric pHi steeply and linearly declined when indexed DABF was below 0.82 litre min(-1) m(-2). Above this critical value, there was no linear relationship between them. The duration of postoperative gastrointestinal dysfunction was inversely correlated with the mean DABF during XC. The best cut-off value of the mean indexed DABF during XC to prevent prolonged gastrointestinal dysfunction was 1.2 litre min(-1) m(-2). CONCLUSIONS Decreased DABF during XC associates splanchnic hypoperfusion after XC release and delayed recovery of gastrointestinal function.
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Affiliation(s)
- Y Kotake
- Department of Anaesthesiology and Perioperative Care, Toho University Ohashi Medical Center, 2-17-6, Ohashi, Meguro, Tokyo 153-8515, Japan.
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Katayama I, Aoki H, Takeda J, Shimosato H, Ashida M, Kinjo R, Kawayama I, Tonouchi M, Nagai M, Tanaka K. Ferroelectric soft mode in a SrTiO3 thin film impulsively driven to the anharmonic regime using intense picosecond terahertz pulses. Phys Rev Lett 2012; 108:097401. [PMID: 22463665 DOI: 10.1103/physrevlett.108.097401] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Revised: 10/02/2011] [Indexed: 05/24/2023]
Abstract
The ferroelectric soft mode in a SrTiO(3) thin film was impulsively driven to a large amplitude using intense picosecond terahertz pulses. As the terahertz electric field increased, the soft-mode absorption peak exhibited blueshifting and spectral narrowing. A classical anharmonic oscillator model suggests that the induced displacement is comparable to that of the ferroelectric phase transition. The spectral narrowing indicates that the displacement exceeds that induced by any inhomogeneities in the film, demonstrating that the method can be used to explore intrinsic quartic anharmonicity.
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Affiliation(s)
- I Katayama
- Interdisciplinary Research Center, Yokohama National University, Yokohama 240-8501, Japan
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Ata S, Muramatsu M, Takeda J, Ohdaira T, Suzuki R, Ito K, Kobayashi Y, Ougizawa T. Free volume behavior in spincast thin film of polystyrene by energy variable positron annihilation lifetime spectroscopy. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.04.060] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [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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Mitsubori S, Katayama I, Lee SH, Yao T, Takeda J. Ultrafast lasing due to electron-hole plasma in ZnO nano-multipods. J Phys Condens Matter 2009; 21:064211. [PMID: 21715913 DOI: 10.1088/0953-8984/21/6/064211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Dynamics of stimulated emission and ultrafast lasing in ZnO nano-multipods has been investigated with a femtosecond optical Kerr shutter technique. Under band-to-band excitation with high density, stimulated emission is observed around 395-400 nm with a mode-like structure. The stimulated emission emerges with an onset time of ∼2 ps and then the intensity gradually decreases with time having a blue-shift and a spectral narrowing. The characteristics of the blue-shift and spectral narrowing suggest that not only recovery of bandgap renormalization but also conversion from an electron-hole plasma (EHP) state to high density excitonic state takes place as the carrier density decreases due to recombination of electrons with holes. The mode-like structure observed strongly indicates that a high quality resonant cavity is formed between the two facets toward the leg length direction of individual nano-multipod. These results show that the ultrafast lasing observed around 395-400 nm in ZnO nano-multipods comes from population inversion in the EHP regime. We also found that the initial carrier distribution of the EHP regime in nano-multipods is much wider than that in ZnO thin films, implying that the carrier diffusion might be suppressed by their nano-size structure.
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Affiliation(s)
- S Mitsubori
- Department of Physics, Yokohama National University, Yokohama 240-8501, Japan
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Yang L, Motohisa J, Tomioka K, Takeda J, Fukui T, Geng MM, Jia LX, Zhang L, Liu YL. Fabrication and excitation-power-density-dependent micro-photoluminescence of hexagonal nanopillars with a single InGaAs/GaAs quantum well. Nanotechnology 2008; 19:275304. [PMID: 21828700 DOI: 10.1088/0957-4484/19/27/275304] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Hexagonal nanopillars with a single InGaAs/GaAs quantum well (QW) were fabricated on a GaAs (111)B substrate by selective-area metal-organic vapor phase epitaxy. The standard deviations in diameter and height of the nanopillars are about 2% and 5%, respectively. Zincblende structure and rotation twins were identified in both the GaAs and the InGaAs layers by electron diffraction. The excitation-power-density-dependent micro-photoluminescence (μ-PL) of the nanopillars was measured at 4.2, 50, 100 and 150 K. It was shown that, with increasing excitation power density, the μ-PL peak's positions shift to a higher energy, and their intensity and width increase, which were rationalized using a model that includes the effects of piezoelectricity, photon-screening and band-filling. It was also revealed that the rotation twins significantly reduce the diffusion length of the carriers in the nanopillars, compared to that in the regular semiconductors.
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Affiliation(s)
- L Yang
- Laboratory on Optoelectronic Systems, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, People's Republic of China
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Arisaka H, Sakuraba S, Takeda J. Effects of spinal anesthesia on the electroencephalogram in the elderly. Acta Anaesthesiol Belg 2008; 59:15-17. [PMID: 18468012] [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: 05/26/2023]
Abstract
Elderly patients frequently fall asleep during spinal anesthesia without sedatives. We investigated effects of spinal anesthesia on electroencephalogram (EEG) in elderly patients. Elderly patients were randomly assigned. Patients in Group C (n = 8) received an epidural catheter with no anesthetics as control; patients in Group S (n = 8) received spinal anesthesia. Subsequently, processed EEG data were monitored for 5 minutes. Spinal anesthesia induced significant decreases in 90% spectral edge frequency (SEF90), whereas the control group had no change in SEF90. It was concluded that spinal anesthesia induces decreased SEF90, indicating suppressed cortical activity in early phases of sensory blockade in elderly patients.
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Affiliation(s)
- H Arisaka
- Department of Anesthesiology, Clinical Care Medicine, Kanagawa Dental College, 82 Inaoka-cho, Yokosuka, Kanagawa 238-8580, Japan.
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Adiga SK, Toyoshima M, Shiraishi K, Shimura T, Takeda J, Taga M, Nagai H, Kumar P, Niwa O. p21 provides stage specific DNA damage control to preimplantation embryos. Oncogene 2007; 26:6141-9. [PMID: 17420724 DOI: 10.1038/sj.onc.1210444] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The early stage embryogenesis of higher eukaryotes lacks some of the damage response pathways such as G1/S checkpoint, G2/M checkpoint and apoptosis. We examined here the damage response of preimplantation stage embryos after fertilization with 6 Gy irradiated sperm. Sperm-irradiated embryos developed normally for the first 2.5 days, but started to exhibit a developmental delay at day 3.5. p21 was activated in the delayed embryos, which carried numerous micronuclei owing to delayed chromosome instability. Apoptosis was observed predominantly in the inner cell mass of the day 4.0 embryos. Sperm-irradiated p21-/- embryos lacked the delay, but chromosome instability and apoptosis were more pronounced than the corresponding p21 wild-type embryos. We conclude from the result that damage responses come in a stage-specific manner during preimplantation stage development; p53-dependent S checkpoint at the zygote stage, p21-mediated cell cycle arrest at the morula/blastocyst stages and apoptosis after the blastocyst stage in the inner cell mass.
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Affiliation(s)
- S K Adiga
- Kasturba Medical College, Manipal, India
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Takeda J, Ikeda Y, Mihara D, Kurita S, Sawada A, Yokoyama Y. Transient Absorption Spectroscopy for Photochemical Reactions of a Negative Photochromic Spiropyran. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587250008023917] [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] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- J. Takeda
- a Department of Physics , Yokohama National University , Yokohama , 240-8501 , Japan
| | - Y. Ikeda
- a Department of Physics , Yokohama National University , Yokohama , 240-8501 , Japan
| | - D. Mihara
- a Department of Physics , Yokohama National University , Yokohama , 240-8501 , Japan
| | - S. Kurita
- a Department of Physics , Yokohama National University , Yokohama , 240-8501 , Japan
| | - A. Sawada
- b Department of Materials Chemistry , Yokohama National University , Yokohama , 240-8501 , Japan
| | - Y. Yokoyama
- b Department of Materials Chemistry , Yokohama National University , Yokohama , 240-8501 , Japan
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Takeda J, Horie K, Yusa K. New strategy for comprehensive analysis of gene functions in embryonic stem cells. Ernst Schering Res Found Workshop 2006:15-22. [PMID: 16903413 DOI: 10.1007/3-540-31437-7_2] [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] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
At present, the limitation of Phenotype-based genetic screening in embryonic stem cells (ESCs) is the diploid nature of the genome. Since it is known that cells deficient in the Bloom's syndrome gene (Blm) show an increased rate of homologous recombination, we have developed a new system to conditionally regulate the Blm allele for introduction of bi-allelic mutations across the genome. Transient deficiency of Blm induces homologous recombination not only between sister chromatids but also between homologous chromosomes, resulting in a high rate of loss of heterozygosity (LOH). Introduction of genome-wide mutations in ESCs can be achieved by retroviral vector. In combination, using genome-wide mutagenesis and transient loss of Blm expression, we have generated ES libraries with bi-allelic mutations. These results show that this new system is very efficient for identifying gene functions in ESCs.
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Affiliation(s)
- J Takeda
- Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Suita, Japan.
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Sakuraba S, Serita R, Kosugi S, Eriksson LI, Lindahl SGE, Takeda J. Pretreatment with magnesium sulphate is associated with less succinylcholine-induced fasciculation and subsequent tracheal intubation-induced hemodynamic changes than precurarization with vecuronium during rapid sequence induction. Acta Anaesthesiol Belg 2006; 57:253-7. [PMID: 17067136] [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: 05/12/2023]
Abstract
Although it has side effects, succinylcholine is still widely used in rapid sequence induction. The aim of the present study is to evaluate the effects of pretreat ment with magnesium and precurarization of vecuroni um on succinylcholine-induced fasciculation and subse quent tracheal intubation-induced hemodynamic changes during rapid sequence induction. Fifty-five patients were allocated to three groups by a blinded randomization: Group M received saline 100 ml with magnesium 40 mg x kg(-1) for 5 min at 6.5 min before induction and sub sequently administered saline 1-2 ml at 1.5 min before induction; Group V received saline 100 ml for 5 min at 6.5 min before induction and subsequently administered vecuronium 0.02 mg x kg(-1) at 1.5 min before induction; Group C received saline 100 ml for 5 min at 6.5 min before induction and then saline 1-2 ml at 1.5 min before induction. Fasciculation scores and mean percent changes of heart rate, systolic blood pressure and rate pressure product between baseline and after induction were significantly lower in group M than those in group C and group V. Pretreatment with magnesium is more effective to limit succinylcholine-induced fasciculation and subsequent tracheal intubation-induced hemody namic changes in rapid sequence induction compared with vecuronium pretreatment, although magnesium does not prevent the elevation of serum potassium con centration after induction.
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Affiliation(s)
- S Sakuraba
- Department of Anesthesiology, School of Medicine, Keio University, Tokyo, Japan.
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Fujii S, Tominaga K, Kitajima K, Takeda J, Kusaka T, Fujita M, Ichikawa K, Tomita S, Ohkura Y, Ono Y, Imura J, Chiba T, Fujimori T. Methylation of the oestrogen receptor gene in non-neoplastic epithelium as a marker of colorectal neoplasia risk in longstanding and extensive ulcerative colitis. Gut 2005; 54:1287-92. [PMID: 15870230 PMCID: PMC1774644 DOI: 10.1136/gut.2004.062059] [Citation(s) in RCA: 48] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Surveillance colonoscopy is widely recommended in patients with longstanding and extensive ulcerative colitis (UC) in order to detect colorectal neoplasia at an early stage. However, it still remains questionable whether surveillance colonoscopy effectively enables early detection of UC associated neoplasia. There is a great need for sensitive markers to identify individuals at increased risk of neoplasia. The oestrogen receptor (OR) gene shows age related methylation in the colorectal epithelium and is methylated frequently in sporadic colorectal neoplasia, suggesting that OR methylation may predispose to colorectal neoplasia. AIM To clarify whether analysis of methylation of the OR gene in non-neoplastic epithelium can contribute to prediction of increased neoplasia risk in UC patients. MATERIALS AND METHODS A total of 165 non-neoplastic colorectal epithelia from 30 patients with longstanding and extensive UC, including 13 UC patients with neoplasia and 17 patients without, were evaluated. Methylation specific polymerase chain reaction was performed to determine the methylation status of the OR gene. RESULTS Methylation of the OR gene was detected in 54 of 70 (77.1%) non-neoplastic colorectal epithelia in UC with neoplasia but in only 23 of 95 (24.2%) without neoplasia. Methylation of the OR gene was significantly more frequent in non-neoplastic epithelium from UC with neoplasia than in chronic colitic epithelium from UC without neoplasia. Furthermore, in UC with neoplasia, the OR gene was extensively methylated in non-neoplastic epithelia throughout the colorectum compared with those in UC without neoplasia. CONCLUSION These results suggest that analysis of OR gene methylation may have potential as a useful marker for identifying individuals at increased risk of neoplasia among those with longstanding and extensive UC.
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Affiliation(s)
- S Fujii
- Department of Surgical and Molecular Pathology, Dokkyo University School of Medicine, 880 Kitakobayashi, Mibu, Shimotsuga, Tochigi 321-0293, Japan.
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Komazawa N, Matsuda M, Kondoh G, Mizunoya W, Iwaki M, Takagi T, Sumikawa Y, Inoue K, Suzuki A, Mak TW, Nakano T, Fushiki T, Takeda J, Shimomura I. Retraction: Enhanced insulin sensitivity, energy expenditure and thermogenesis in adipose-specific Pten suppression in mice. Nat Med 2005; 11:690. [PMID: 15937475 DOI: 10.1038/nm0605-691a] [Citation(s) in RCA: 4] [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: 11/09/2022]
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Wang H, Horikawa Y, Jin L, Narita T, Yamada S, Shihara N, Tatemoto K, Muramatsu M, Mune T, Takeda J. Gene expression profile in rat pancreatic islet and RINm5F cells. J Mol Endocrinol 2005; 35:1-12. [PMID: 16087717 DOI: 10.1677/jme.1.01738] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
To clarify tissue-specificity of pancreatic beta cells, comparison of mRNA expression in various conditions of the tissue of multiple organisms is important. Although the developed methodologies for mRNA monitoring such as microarray, rely on the growth of dbEST (database of expressed sequence tag), a large number of unknown genes in the genome, especially in the rat, have not been shown to be expressed. In this study, we have established the first database of ESTs from rat pancreatic islet and RINm5F cells. Two cDNA libraries were constructed using mRNAs from rat pancreatic islet and RINm5F cells to cover a wider spectrum of expressed genes. Over 40,000 clones were randomly selected from the two libraries and partially sequenced. The sequences obtained were subjected to BLAST database analyses. This large-scale sequencing generated 40,710 3'-ESTs. Clustering analysis and homology search of nucleotide and peptide databases using both 3'- and 5'-ESTs revealed 10,406 non-redundant transcripts representing 4078 known genes or homologs and 6328 unknown genes. To confirm actual expression, the unknown sequences were further subjected to dbEST search, resulting in the identification of 5432 significant matches to those from other sources. Interestingly, of the remaining sequences showing no match, 779 were found to be encoded by exon-intron organization in the corresponding genomic sequences, suggesting that these are newly found as actually expressed in this study. Since many genes are up- or down-regulated in differing conditions, applications of the expression profile should facilitate identification of the genes involved in cell-specific functions in normal and disease states.
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Affiliation(s)
- H Wang
- Laboratory of Molecular Genetics, Department of Cell Biology, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, Japan
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Shihara N, Horikawa Y, Onishi T, Ono M, Kashimada K, Takeda J. Identification of a new case of hepatocyte nuclear factor-1beta mutation with highly varied phenotypes. Diabetologia 2004; 47:1128-9. [PMID: 15168014 DOI: 10.1007/s00125-004-1402-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2004] [Accepted: 03/26/2004] [Indexed: 11/30/2022]
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Fujii S, Fujimori T, Kawamata H, Takeda J, Kitajima K, Omotehara F, Kaihara T, Kusaka T, Ichikawa K, Ohkura Y, Ono Y, Imura J, Yamaoka S, Sakamoto C, Ueda Y, Chiba T. Development of colonic neoplasia in p53 deficient mice with experimental colitis induced by dextran sulphate sodium. Gut 2004; 53:710-6. [PMID: 15082590 PMCID: PMC1774053 DOI: 10.1136/gut.2003.028779] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Several animal models for human ulcerative colitis (UC) associated neoplasia have been reported. However, most neoplasias developed in these models have morphological and genetic characteristics different from UC associated neoplasia. AIMS To establish a new colitis associated neoplasia model in p53 deficient mice by treatment with dextran sulphate sodium (DSS). METHODS DSS colitis was induced in homozygous p53 deficient mice (p53(-/-)-DSS), heterozygous p53 deficient mice (p53(+/-)-DSS) and wild-type mice (p53+/+-DSS) by treatment with 4% DSS. Numbers of developed neoplasias were compared among the experimental groups, and macroscopic and microscopic features of the neoplasias were analysed. Furthermore, K-ras mutation and beta-catenin expression were assessed. RESULTS p53(-/-)-DSS mice showed 100% incidence of neoplasias whereas the incidences in p53(+/-)-DSS and p53+/+-DSS mice were 46.2% and 13.3%, respectively. No neoplasias were observed in the control groups. The mean numbers of total neoplasias per mouse were 5.0 (p53(-/-)-DSS), 0.62 (p53(+/-)-DSS), and 0.2 (p53+/+-DSS). The number of neoplasias per mouse in the p53(-/-)-DSS group was significantly higher than that in the other DSS groups. The incidences of superficial type neoplasias were 91.7% in p53(-/-)-DSS mice, 75.0% in p53(+/-)-DSS mice, and 33.3% in p53+/+-DSS mice. The K-ras mutation was not detected in any of the neoplasias tested. Translocation of beta-catenin from the cell membrane to the cytoplasm or nucleus was observed in 19 of 23 (82.6%) neoplasias. CONCLUSIONS The p53(-/-)-DSS mice is an excellent animal model of UC associated neoplasia because the morphological features and molecular genetics are similar to those of UC associated neoplasia. Therefore, this model will contribute to the analysis of tumorigenesis related to human UC associated neoplasia and the development of chemopreventive agents.
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MESH Headings
- Animals
- Cell Transformation, Neoplastic/genetics
- Colitis, Ulcerative/chemically induced
- Colitis, Ulcerative/complications
- Colitis, Ulcerative/pathology
- Colonic Neoplasms/etiology
- Colonic Neoplasms/genetics
- Colonic Neoplasms/pathology
- Cytoskeletal Proteins/metabolism
- Dextran Sulfate
- Disease Models, Animal
- Genes, p53
- Genes, ras
- Genetic Predisposition to Disease
- Mice
- Mice, Inbred C57BL
- Mice, Inbred CBA
- Mice, Knockout
- Mutation
- Trans-Activators/metabolism
- beta Catenin
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Affiliation(s)
- S Fujii
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Toshine Y, Takeda J, Ko HJ, Yao T. Conversion of an electron-hole plasma into a high density excitonic state in ZnO epitaxial thin films. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/pssc.200304249] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Takeda J, Takagi K, Okabe T, Ko HJ, Yao T. Relaxation and diffusion of photoexcited carriers in ZnO epitaxial thin films. ACTA ACUST UNITED AC 2004. [DOI: 10.1002/pssc.200304200] [Citation(s) in RCA: 8] [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: 11/08/2022]
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Affiliation(s)
- Y Kotake
- Department of Anesthesiology, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
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Abstract
In order to understand the tIssue specificity of the endocrine pancreas, it is important to clarify the expression profile of mRNAs in various states of the tIssue. A total of approximately 9000 non-redundant expressed genes from human pancreatic islets and insulinoma have so far been determined as expressed sequence tags (ESTs) and deposited in public databases. In the present study towards the identification of a complete set of genes expressed in human pancreatic islets, we have determined 3'-ESTs of 21267 clones randomly selected from a cDNA library of human pancreatic islet tumors. Clustering analysis generated 6157 non-redundant sequences comprising 2323 groups and 3834 singletons. Nucleotide and peptide database searches show that 3103 of them represent known human sequences or homologs of genes identified in other species and 58 are new members of structurally related families. The sequences were classified on the basis of the putative protein functions encoded, and were assigned to the respective chromosome by database analysis. The sequences were also compared with the EST databases (dbEST and EPConDB) including ESTs from normal pancreatic islet, insulinoma, and fetal pancreas. Since 3384 genes were newly found to be expressed in human pancreatic islets and 587 of them were unique to the islets, this study has considerably expanded the catalog of genes expressed in the endocrine pancreas. The larger collection of pancreatic islet-related ESTs should provide a better genome source for molecular studies of differentiation, tIssue-specific functions, and tumorigenesis of the endocrine pancreas as well as for genetic studies of diabetes mellitus.
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Affiliation(s)
- L Jin
- Department of Cell Biology, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma 371-8512, Japan
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Takeda J, Imae M, Hanado O, Kurita S, Furuya M, Ohno K, Kodaira T. Photoinduced magnetic phase transition in an organic radical 1,3,5-trithia-2,4,6-triazapentalenyl crystal at room temperature. Chem Phys Lett 2003. [DOI: 10.1016/s0009-2614(03)01340-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Itoh Y, Hasebe M, Davies E, Takeda J, Ozeki Y. Survival of Tdc transposable elements of the En/Spm superfamily in the carrot genome. Mol Genet Genomics 2003; 269:49-59. [PMID: 12715153 DOI: 10.1007/s00438-002-0798-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2002] [Accepted: 12/03/2002] [Indexed: 10/25/2022]
Abstract
Three subfamilies of the En/Spm-type transposable element of carrot, Tdc A, B, and C, were characterized. It was supposed that the Tdc A subfamily may include autonomous elements which can produce transposases. Tdc B elements are defective, but still generate transcripts containing mutant open reading frame (ORF) sequences for transposases. The single member of the Tdc C group recovered seems to be a pseudogene. The sequences of the transposase ORFs of Tdc A and Tdc B elements are more highly conserved than those of the 5; and 3; untranslated regions and introns, as is found in other structural genes that are subject to selection. These observations indicate that the mutations in the nucleotide sequences of the Tdc elements occurred in the host genome. However, the mutations in the 5; and 3; untranslated regions and introns, which may not be sufficient to prevent transposition, accumulated in autonomous elements, which could transpose and produce copies. When the reproduction rate and the rate of disabling mutations reached an equilibrium, that is, when the birth rate of the transposable elements in the genome equalled the death rate, the population of elements achieved a stationary state in the genome, and could thus survive.
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Affiliation(s)
- Y Itoh
- Department of Biotechnology, Faculty of Technology, Tokyo University of Agriculture and Technology, Naka-cho 2-24-16, Koganei, 184-8588 Tokyo, Japan
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Zhu Q, Yamagata K, Miura A, Shihara N, Horikawa Y, Takeda J, Miyagawa J, Matsuzawa Y. T130I mutation in HNF-4alpha gene is a loss-of-function mutation in hepatocytes and is associated with late-onset Type 2 diabetes mellitus in Japanese subjects. Diabetologia 2003; 46:567-73. [PMID: 12669197 DOI: 10.1007/s00125-003-1067-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2002] [Revised: 12/06/2002] [Indexed: 12/30/2022]
Abstract
AIMS/HYPOTHESIS Mutations in hepatocyte nuclear factor (HNF)-4alpha gene cause a form of maturity-onset diabetes of the young (MODY1). The T130I mutation is a rare missense mutation, which affects a conserved amino acid in a DNA binding domain. This mutation can be found in the general population, so this variant alone does not cause MODY. However, its significance in the development of late-onset Type 2 diabetes is not known. METHODS We screened 423 unrelated Japanese patients with late-onset Type 2 diabetes and 354 unrelated non-diabetic control subjects for the T130I mutation in the HNF-4alpha gene. The transactivation ability of T130I-HNF-4alpha was assessed using reporter gene assay. RESULTS The frequency of the T130I mutation was higher in Type 2 diabetic patients ( p=0.015, odds ratio 4.3, 95%CI 1.24-14.98) than control subjects. The serum HDL-cholesterol concentration was lower in Type 2 diabetic patients with the T130I mutation compared with those without this mutation ( p=0.006). Reporter gene analysis showed that T130I-HNF-4alpha transcriptional activity was not impaired compared with wild-type HNF-4alpha in Hela and MIN6 cells, but it was reduced in HepG2 and primary cultured mouse hepatocytes (27-78% of wild type, p<0.05). CONCLUSION/INTERPRETATION Our findings suggest that T130I-HNF-4alpha is a loss-of-function mutation in hepatocytes and that this mutation is associated with late-onset Type 2 diabetes in Japanese subjects. The T130I mutation in the HNF-4alpha gene might be involved in the development of Type 2 diabetes in the Japanese population.
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Affiliation(s)
- Q Zhu
- Department of Internal Medicine and Molecular Science, Graduate School of Medicine, B5, Osaka University, 2-2 Yamada-oka, Suita, Osaka 565-0871, Japan
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Serita R, Morisaki H, Ai K, Morita Y, Innami Y, Satoh T, Kosugi S, Kotake Y, Takeda J. Sevoflurane preconditions stunned myocardium in septic but not healthy isolated rat hearts. Br J Anaesth 2002; 89:896-903. [PMID: 12453935 DOI: 10.1093/bja/aef282] [Citation(s) in RCA: 10] [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] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Recent evidence indicates that sevoflurane treatment before prolonged ischaemia reduces infarct size in normal hearts, mimicking ischaemic preconditioning. We examined whether exposure to sevoflurane before brief ischaemia, inducing a 'stunned myocardium', provided such protective effects in an isolated working heart from normal or septic rats. METHODS With institutional approval, 91 rats were randomly allocated into one of either caecal-ligation and perforation (CLP: n=50) or sham (Sham: n=41) procedure groups 24 h before the study. After determination of baseline measurements, including cardiac output (CO), myocardial oxygen consumption (mVO(2)) and cardiac efficiency (CE; CO x peak systolic pressure/mVO(2)), each isolated heart was perfused with or without 2% sevoflurane for 15 min before global ischaemia (pre-ischaemia). After 15 min ischaemia and 30 min reperfusion, all hearts were assessed for functional recovery of myocardium (post-reperfusion). RESULTS During the pre-ischaemia period, 2% sevoflurane caused a significant reduction of CO in the CLP group compared with the Sham group. During the post-reperfusion period, both CO (16.9 vs 11.0 ml min(-1)) and CE (11.2 vs 7.7 mm Hg ml(-1) ( micro l O(2))(-1)) was higher in the sevoflurane-treated vs -untreated hearts from CLP rats, and was accompanied by lower incidence of reperfusion arrhythmia compared with control hearts (8 vs 32%). In contrast, 2% sevoflurane did not provide cardioprotective effects in normal rats. CONCLUSIONS The current study demonstrates that pre-treatment with sevoflurane minimizes myocardial dysfunction and the incidence of reperfusion arrhythmia after brief ischaemic insults in septic hearts.
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Affiliation(s)
- R Serita
- Department of Anaesthesiology and General Intensive Care Unit, Keio University School of Medicine, Tokyo 160-8582, Japan.
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Tonooka N, Tomura H, Takahashi Y, Onigata K, Kikuchi N, Horikawa Y, Mori M, Takeda J. High frequency of mutations in the HNF-1alpha gene in non-obese patients with diabetes of youth in Japanese and identification of a case of digenic inheritance. Diabetologia 2002; 45:1709-12. [PMID: 12488961 DOI: 10.1007/s00125-002-0978-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [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: 06/07/2002] [Revised: 08/14/2002] [Indexed: 12/16/2022]
Abstract
AIMS/HYPOTHESIS There is an emerging epidemic of Type II (non-insulin-dependent) diabetes mellitus of youth in Japan and in many other developed countries. The aim of this study was to determine the prevalence of mutations in the hepatocyte nuclear factor (HNF)-1alpha gene (TCF1) in a large group of Japanese patients with early-onset non-Type I (insulin-dependent) diabetes mellitus. Since approximately 20% of Caucasian patients with HNF-1alpha mutations have been shown to be obese or overweight, we also examined the association of genetic variations in TCF1 with body weight in Japanese subjects. METHODS We examined 203 patients with non-Type 1 diabetes who had been diagnosed before they reached 15 years of age. Ten exons and flanking introns of TCF1 of these patients were directly sequenced for mutations. RESULTS We found 14 different mutations in 18 patients (8.9%), including one that was found to be de novo. The patients with the mutations had lower BMI (20.1+/-3.0 kg/m(2)) at diagnosis than the patients without them (24.5+/-6.0 kg/m(2)) (p=0.0024). All of the patients with the mutations, except for one, Y120, had normal body weight (BMI<25 kg/m(2)); the frequency of HNF-1alpha mutations in the non-obese patients of this study was 17% (17/101). Patient Y120, who had atypical symptoms of mild obesity and insulin resistance at diagnosis, was found to have inherited an additional mutation in an obesity-related gene. CONCLUSION/INTERPRETATION A considerable number of non-obese Japanese patients with non-Type 1 diabetes of youth have HNF-1alpha-deficient diabetes. Lack of obesity could well be a characteristic feature of this form of diabetes.
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Affiliation(s)
- N Tonooka
- First Department of Internal Medicine, Gunma University, Japan
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Ichikawa K, Imura J, Kawamata H, Takeda J, Fujimori T. Down-regulated p16 expression predicts poor prognosis in patients with extrahepatic biliary tract carcinomas. Int J Oncol 2002; 20:453-61. [PMID: 11836554 DOI: 10.3892/ijo.20.3.453] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The prognosis of extrahepatic biliary tract cancer (EBT) patients is generally accepted to be poor. We immunohistochemically evaluated expression of p16, a cyclin-depend kinase inhibitor, in tumor specimens surgically removed from 99 EBT patients. We also examined whether there was any relationship between expression of p16 and biological malignancy of the tumor by comparing its clinicopathological factors. Consequently, we found that there were three types of p16 expression in the tumor cells; diffuse, heterogeneous and negative types, the percentages of which were 19, 41 and 39%, respectively. Heterogeneous and negative types, whose expression of p16 was considered to be down-regulated, showed scirrhous (p=0.022) and infiltrating growth (p=0.002). In addition, we found that the proportion of down-regulated expression of p16 was different, depending on the location of the tumor. We also observed that the down-regulated p16 expression was the highest in a proportion of patients with the extrahepatic bile duct carcinoma. In contrast, the proportion of down-regulated p16 expression was the least among the patients in the region of the ampulla of Vater with better prognosis, and we showed that the prognosis of patients with down-regulated expression of p16 was the poorest in terms of the cancer location where it is limited to the region of ampulla of Vater. These findings suggest that down-regulated p16 expression is evaluated as a factor of poorer prognosis and also that immunohistochemical pattern of p16 expression becomes a marker reflecting the biological malignancy of EBT patients.
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Affiliation(s)
- K Ichikawa
- Department of Surgical and Molecular Pathology, Dokkyo University School of Medicine, Shimotsuga, Tochigi, Japan
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Aoyagi K, Koufuji K, Yano S, Murakami N, Miyagi M, Takeda J, Shirouzu K. Advanced gastric cancer effectively treated by neoadjuvant continuous low-dosage 5-fluorouracil and cisplatin (FP regimen): a case report. Kurume Med J 2002; 48:325-30. [PMID: 11830933 DOI: 10.2739/kurumemedj.48.325] [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] [Indexed: 11/23/2022]
Abstract
We have experienced a case of advanced gastric cancer with para-aortic lymph node metastasis effectively treated by neoadjuvant continuous low dosage 5-fluorouracil and cisplatin (FP regimen). The patient was a 67-year-old man diagnosed as having advanced gastric cancer type 4 with para-aortic lymph node metastasis. This patient was treated by continuous infusion of 5-fluorouracil (5-FU) 500 mg/day, for 28 days, and infusion of cisplatin 10 mg/day over 1 hr on days 1-5, 8-12, 15-19, and 22-26. At 4 weeks later, a CT revealed that swelling in the para-aortic lymph node had disappeared, and the thickening in the stomach wall had diminished. This patient underwent a curative operation, and both the serum level of carcinoembryonal antigen (CEA) and carbohydrate antigen (CA 19-9) decreased to normal. These results suggested that the FP regimen was an effective neoadjuvant treatment for advanced gastric cancer with para-aortic lymph node metastasis.
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Affiliation(s)
- K Aoyagi
- Department of Surgery, Kurume University School of Medicine, Kurume 830-0011, Japan
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Aoyagi K, Koufuji K, Yano S, Murakami N, Miyagi M, Takeda J, Shirouzu K. Long-term survival after gastric cancer with liver metastasis: a report of two cases. Kurume Med J 2002; 48:335-8. [PMID: 11830935 DOI: 10.2739/kurumemedj.48.335] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We have experienced two cases of long-term survival after surgery for gastric cancer case with liver metastasis. One case was of a 66-year-old male patient diagnosed as having type 1 advanced gastric cancer located in the posterior wall of the lower body with liver metastasis. The stage of this case was P0H1N1T2M0 stage IV. This patient underwent distal gastrectomy with D2 lymph node resection, partial hepatectomy of the S3 region including the metastatic liver tumor and coagulation of metastatic liver tumors in the S6 and S7 regions. This patient was treated by intra-hepatic arterial infusion of 5-FU, CDDP and peroral administration of UFT after surgery. This patient has died at 3 years and 7 months after surgery. The other case was of a 55-year-old male patient diagnosed as having type 2 advanced gastric cancer located in the lesser curvature of the cardia with liver metastasis. The stage of this case was P0H1N1T3 M0 stage IV. This patient underwent total gastrectomy with D2 lymph node dissection, wedge resection of the S8 region including the metastatic liver tumor and coagulation of a metastatic liver tumor in the S4 region. This patient was treated by obstruction of the hepatic artery using coils, peroral administration of UFT, lentinan, MMC, and continuous low-dosage 5-FU and CDDP after surgery. This patient has died at 3 years and 6 months after surgery. These results suggest that for long-term survival in cases of gastric cancer with liver metastasis, hepatectomy or coagulation of the metastatic tumor with postoperative chemotherapy are indicated in cases that have no non-curative factors and only a few metastatic tumors.
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Affiliation(s)
- K Aoyagi
- Department of Surgery, Kurume University School of Medicine, Kurume 830-0011, Japan
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Aoyagi K, Kohfuji K, Yano S, Murakami N, Miyagi M, Takeda J, Shirouzu K. Evaluation of the epidermal growth factor receptor (EGFR) and c-erbB-2 in superspreading-type and penetrating-type gastric carcinoma. Kurume Med J 2002; 48:197-200. [PMID: 11680933 DOI: 10.2739/kurumemedj.48.197] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The expression of epidermal growth factor (EGF), epidermal growth factor receptor (EGFR), transforming growth factor alpha (TGF alpha), and of c-erbB-2 was immunohistochemically investigated in resected gastric carcinoma (in 39 cases of superspreading type and in 11 cases of penetrating type), to understand the differential biological features of these two types of gastric carcinoma. EGF, EGFR and c-erbB-2 positive cases were preferentially found in penetrating type rather than in superspreading type (p < 0.05, p < 0.01, and p < 0.05, respectively). The positive rates of EGFR and c-erbB-2 were significantly higher in submucosal gastric carcinoma than in intramucosal gastric carcinoma (p < 0.01, p < 0.05, respectively). These results suggested that the autocrine mechanism of the growth factors and the expression of c-erbB-2 were correlated to the degree of gastric wall invasion.
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Affiliation(s)
- K Aoyagi
- Department of Surgery, Kurume University School of Medicine, Kurume 830-0011, Japan
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Yoshiuchi I, Yamagata K, Zhu Q, Tamada I, Takahashi Y, Onigata K, Takeda J, Miyagawa J, Matsuzawa Y. Identification of a gain-of-function mutation in the HNF-1beta gene in a Japanese family with MODY. Diabetologia 2002; 45:154-5. [PMID: 11845238 DOI: 10.1007/s125-002-8259-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hayashi M, Otsuka M, Morimoto R, Hirota S, Yatsushiro S, Takeda J, Yamamoto A, Moriyama Y. Differentiation-associated Na+-dependent inorganic phosphate cotransporter (DNPI) is a vesicular glutamate transporter in endocrine glutamatergic systems. J Biol Chem 2001; 276:43400-6. [PMID: 11551935 DOI: 10.1074/jbc.m106244200] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Vesicular glutamate transporter is present in neuronal synaptic vesicles and endocrine synaptic-like microvesicles and is responsible for vesicular storage of L-glutamate. A brain-specific Na(+)-dependent inorganic phosphate transporter (BNPI) functions as a vesicular glutamate transporter in synaptic vesicles, and the expression of this BNPI defines the glutamatergic phenotype in the central nervous system (Bellocchio, E. E., Reimer, R. J., Fremeau, R. T., Jr., and Edwards, R. H. (2000) Science 289, 957-960; Takamori, S., Rhee, J. S., Rosenmund, C., and Jahn, R. (2000) Nature 407, 189-194). However, since not all glutamatergic neurons contain BNPI, an additional transporter(s) responsible for vesicular glutamate uptake has been postulated. Here we report that differentiation-associated Na(+)-dependent inorganic phosphate cotransporter (DNPI), an isoform of BNPI (Aihara, Y., Mashima, H., Onda, H., Hisano, S., Kasuya, H., Hori, T., Yamada, S., Tomura, H., Yamada, Y., Inoue, I., Kojima, I., and Takeda, J. (2000) J. Neurochem. 74, 2622-2625), also transports L-glutamate at the expense of an electrochemical gradient of protons established by the vacuolar proton pump when expressed in COS7 cells. Molecular, biological, and immunohistochemical studies have indicated that besides its presence in neuronal cells DNPI is preferentially expressed in mammalian pinealocytes, alphaTC6 cells, clonal pancreatic alpha cells, and alpha cells of Langerhans islets, these cells being proven to secrete L-glutamate through Ca(2+)-dependent regulated exocytosis followed by its vesicular storage. Pancreatic polypeptide-secreting F cells of Langerhans islets also expressed DNPI. These results constitute evidence that DNPI functions as another vesicular transporter in glutamatergic endocrine cells as well as in neurons.
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Affiliation(s)
- M Hayashi
- Department of Biochemistry, Faculty of Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan
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