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Matsuoka T, Yamaji A, Kurosawa C, Shinohara M, Takayama I, Nakagomi H, Izumi K, Ichikawa Y, Hariya N, Mochizuki K. Co-ingestion of traditional Japanese barley mixed rice (Mugi gohan) with yam paste in healthy Japanese adults decreases postprandial glucose and insulin secretion in a randomized crossover trial. Asia Pac J Clin Nutr 2023; 32:40-47. [PMID: 36997484 DOI: 10.6133/apjcn.202303_32(1).0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
Abstract
BACKGROUND AND OBJECTIVES Barley mixed rice, "Mugi gohan," is traditionally eaten with yam paste in Japan. Both ingredients contain dietary fiber and reportedly reduce postprandial hyperglycemia. However, evidence supporting the benefits of combining barley mixed rice with yam paste is limited. In this study, we evaluated whether ingesting a combination of barley mixed rice and yam paste affected postprandial blood glucose concentration and insulin secretion. METHODS AND STUDY DESIGN This study followed an open-label, randomized controlled crossover design, following the unified protocol of the Japanese Association for the Study of Glycemic Index. Fourteen healthy subjects each consumed four different test meals: white rice only, white rice with yam paste, barley mixed rice, and barley mixed rice with yam paste. We measured their postprandial blood glucose and insulin concentrations after every meal, and we calculated the area under curve for glucose and insulin. RESULTS Participants had significantly reduced area under curve for glucose and insulin after eating barley mixed rice with yam paste compared to when they ate white rice only. Participants had similar area under curve for glucose and insulin after eating barley mixed rice only, or eating white rice with yam paste. Participants had lower blood glucose concentrations 15 min after eating barley mixed rice only, whilst eating white rice with yam paste did not maintain lower blood glucose after 15 min. CONCLUSIONS Eating barley mixed rice with yam paste decreases postprandial blood glucose concentrations and reduces insulin secretion.
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Affiliation(s)
- Tsubasa Matsuoka
- Research and Development Department, Hakubaku Co., Ltd., Yamanashi, Japan
| | - Ayako Yamaji
- Laboratory of Food and Nutritional Sciences, Department of Local Produce and Food Sciences, Faculty of Life and Environmental Sciences, University of Yamanashi, Yamanashi, Japan
| | - Chihiro Kurosawa
- Research and Development Department, Hakubaku Co., Ltd., Yamanashi, Japan
| | | | - Ichiro Takayama
- Health Care Center, University of Yamanashi, Yamanashi, Japan
| | - Hiromi Nakagomi
- Health Care Center, University of Yamanashi, Yamanashi, Japan
| | - Keiko Izumi
- Health Care Center, University of Yamanashi, Yamanashi, Japan
| | - Yoko Ichikawa
- DLaboratory of Food management, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan
| | - Natsuyo Hariya
- Department of Nutrition, Faculty of Health and Nutrition, Yamanashi Gakuin University, Yamanashi, Japan
| | - Kazuki Mochizuki
- Laboratory of Food and Nutritional Sciences, Department of Local Produce and Food Sciences, Faculty of Life and Environmental Sciences, University of Yamanashi, Yamanashi, Japan.
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2
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Miura M, Ohtaka M, Hanawa M, Kitahashi A, Hirose Y, Takaso K, Yoda Y, Takayama I, Yamagata Z, Enomoto N. [Infection status of Helicobacter pylori with antibody values of 3.0U/mL or more and less than 10.0U/mL in the LZ test "Eiken" H. pylori antibody]. Nihon Shokakibyo Gakkai Zasshi 2018; 115:721-731. [PMID: 30101873 DOI: 10.11405/nisshoshi.115.721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The LZ test "Eiken" for H. pylori antibody (LZ test) was examined. In patients with an antibody titer of ≥3.0U/mL and <10.0U/mL among 698 patients who underwent breath tests, the status of H. pylori infection was assessed from the results of the 13C urea breath test and the findings of gastric mucosal atrophy by performing an upper gastrointestinal endoscopy. A positive 13C urea breath test was observed in 22.3% of these patients (156/698, 95% confidence interval 19.4-25.6%), and gastric mucosal atrophy of C-2 or greater was observed in 39.7%. We presumed that 156 (22.3%) patients had present H. pylori infections, 141 (20.2%) patients had experienced a previous infection, and 401 (57.5%) patients were uninfected. The infection rate of H. pylori (current infection+previous infection) was treated as a so-called "risk of gastric cancer" and was 42.6% (297/698, 95% confidence interval 38.9-46.3%). In the LZ test, the concept of a negative high value should be understood. A receiver operating characteristic curve plotted depending on whether the 13C urea breath test was positive or not gave a positive cutoff value of 5.6U/mL;values greater than the cutoff value were taken as indicative of the need to investigate the status of H. pylori infection. Even without gastric mucosal atrophy, 2.0% of these patients had a positive breath test. For gastritis localized in the antrum (C-1), 17.8% of the patients had positive breath test results.
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Affiliation(s)
- Mika Miura
- Yamanashi Koseiren Health Care Center.,First Department of Internal Medicine, Graduate School of Medical and Engineering Science, University of Yamanashi
| | - Masahiko Ohtaka
- Yamanashi Koseiren Health Care Center.,First Department of Internal Medicine, Graduate School of Medical and Engineering Science, University of Yamanashi
| | - Mitsuhiko Hanawa
- Yamanashi Koseiren Health Care Center.,First Department of Internal Medicine, Graduate School of Medical and Engineering Science, University of Yamanashi
| | | | | | | | | | - Ichiro Takayama
- Yamanashi Koseiren Health Care Center.,Health Care Center, University of Yamanashi
| | - Zentarou Yamagata
- Department of Health Sciences, Basic Science for Clinical Medicine, Division of Medicine, Graduate School Department of Interdisciplinary Research, University of Yamanashi
| | - Nobuyuki Enomoto
- First Department of Internal Medicine, Graduate School of Medical and Engineering Science, University of Yamanashi
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Ohtaka M, Miura M, Hanawa M, Hirose Y, Kitahashi A, Imamura N, Watanabe I, Takaso K, Shimura N, Yoda Y, Takayama I, Fukasawa M, Enomoto N. Efficacy and Tolerability of Second-Line Metronidazole Triple Therapy Using Vonoprazan for Helicobacter pylori Eradication in Japan—Comparative Study: Vonoprazan vs. Proton Pump Inhibitors. ACTA ACUST UNITED AC 2018. [DOI: 10.4236/ojgas.2018.81003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Akasaka H, Sasaki R, Takayama I, Nakahana M, Sulaiman N, Miyawaki D, Yoshida K, Ejima Y, Uezono H, Mizushina Y. EP-1841: A novel radiosensitizer, monogalactosyl diacylglycerol, enhanced the cytotoxic effects for the pancreatic cancer. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31959-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Takayama I, Sato H, Kai C. The nucleocapsid protein of measles virus and other morbillivirus blocks host interferon signaling pathway. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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6
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Takayama I, Miyazaki S, Tashiro F, Fujikura J, Miyazaki J, Yamato E. Pdx-1-independent differentiation of mouse embryonic stem cells into insulin-expressing cells. Diabetes Res Clin Pract 2008; 79:e8-10. [PMID: 17900743 DOI: 10.1016/j.diabres.2007.08.013] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2007] [Accepted: 08/21/2007] [Indexed: 10/22/2022]
Abstract
To investigate whether insulin-producing cells obtained from ES cells via the nestin-positive cell-mediated method are of the pancreatic lineage, we established a pdx-1 knockout ES cell line and analyzed its differentiation into insulin-producing cells. As a result, pdx-1 knockout ES cell expressed insulin 2 gene at the final differentiated cells. Thus, our study demonstrated that pdx-1 is not essential for insulin gene expression, at least in cells differentiated from this population of nestin-expression enriched ES cells, and suggested that the insulin-producing cells derived from ES cells may be different from the pancreatic beta cells in terms of their lineage.
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Affiliation(s)
- I Takayama
- Division of Stem Cell Regulation Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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Daigo Y, Takayama I, Ward SM, Sanders KM, Fujino MA. Isolation of novel mouse genes that were differentially expressed in W/W(V) mouse fundus. J Gastroenterol 2004; 39:238-41. [PMID: 15065000 DOI: 10.1007/s00535-003-1283-8] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2003] [Accepted: 08/15/2003] [Indexed: 02/04/2023]
Abstract
BACKGROUND Using cDNA microarray analysis that displays a total of 8734 mouse genes, we have identified 21 known and novel transcripts, including mouse expressed sequence tags (ESTs) that were consistently up- or downregulated in the fundus of wild-type mice and W/W(V) mice, where intramuscular interstitial cells of Cajal (ICC; IC-IM) are lost. METHODS By using these tags as part of the full-length mRNA sequence of the murine genes, we screened a mouse-brain cDNA library and the FASTA database (http://www.ebi.ac.uk/fasta33/). RESULTS Three of the queries were identified as novel mouse genes, whereas six transcripts had their human counterparts that were known to encode functional proteins. Four transcripts, DRIM (downregulated in metastasis), SLP8 (tumor antigen), PTK7/CCK4 (receptor protein tyrosine kinase-like molecule-7/colon carcinoma kinase-4), and a novel gene AWMS2 were increased in W/W(V) mice. Expression of another five genes was decreased in W/W(V) mice: BB1 (overexpressed in bladder and breast carcinoma), HTATIP/CPLA2 (HIV-1 TAT interactive protein/cytosolic phospholipase A2), Tenascin-receptor like (Hexabrachion, Cytotactin, Neuronectin, Myotendinous antigen), and two novel transcripts: DRWMS1 and DRWMS2. Molecular profiling generated by cDNA microarray analysis from the fundus of W/W(V) mice and its complete list of full-length cDNAs will be shown on our web site (http://www.yamanashi.ac.jp/). CONCLUSIONS Differential gene comparisons between control and mutant animals with losses in specific populations of ICCs will contribute significantly to our understanding of motility disorders associated with the loss of these cells and electrical slow waves in the gastrointestinal tract.
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Affiliation(s)
- Yataro Daigo
- Department of Medicine, University of Yamanashi Faculty of Medicine, Yamanashi, Japan
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Kagawa T, Watanabe N, Kanouda H, Takayama I, Shiba T, Kanai T, Kawazoe K, Takashimizu S, Kumaki N, Shimamura K, Matsuzaki S, Mine T. Fatal liver failure due to reactivation of lamivudine-resistant HBV mutant. World J Gastroenterol 2004; 10:1686-7. [PMID: 15162553 PMCID: PMC4572782 DOI: 10.3748/wjg.v10.i11.1686] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
We report a case of fatal liver failure due to reactivation of lamivudine-resistant HBV. A 53-year-old man was followed since 1998 for HBV-related chronic hepatitis. Serum HBV-DNA was 150 MEq/mL (branched DNA signal amplification assay) and ALT levels fluctuated between 50-200 IU/L with no clinical signs of liver cirrhosis. Lamivudine (100 mg/d) was started in May 2001 and serum HBV-DNA subsequently decreased below undetectable levels. In May 2002, serum HBV-DNA had increased to 410 MEq/mL, along with ALT flare (226 IU/L). The YMDD motif in the DNA polymerase gene had been replaced by YIDD. Lamivudine was continued and ALT spontaneously decreased to the former levels. On Oct 3 the patient presenting with general fatigue, nausea and jaundice was admitted to our hospital. The laboratory data revealed HBV reactivation and liver failure (ALT: 1828 IU/L, total bilirubin: 10 mg/dL, and prothrombin INR: 3.24). For religious reasons, the patient and his family refused blood transfusion, plasma exchange and liver transplantation. The patient died 10 d after admission. The autopsy revealed remarkable liver atrophy.
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Affiliation(s)
- Tatehiro Kagawa
- Department of Internal Medicine, Tokai University School of Medicine, Boseidai, Isehara, Kanagawa 259-1193, Japan.
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Daigo Y, Takayama I, Ponder BAJ, Caldas C, Ward SM, Sanders KM, Fujino MA. Novel human, mouse and xenopus genes encoding a member of the RAS superfamily of low-molecular-weight GTP-binding proteins and its downregulation in W/WV mouse jejunum. J Gastroenterol Hepatol 2004; 19:211-7. [PMID: 14731133 DOI: 10.1111/j.1440-1746.2004.03298.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIM Interstitial cells of Cajal (ICC) are pacemakers and mediators of neurotransmission in gastroenteric smooth muscles. Interstitial cells of Cajal require cellular signaling via KIT, a receptor tyrosine kinase, for development and maintenance of cellular phenotype. Much of the evidence demonstrating the functions of ICC comes from studies of W/W V mutant mice, which have reduced KIT function. The aim of the present study was to differentially examine gene expression in the small intestines of wild-type and W/W V mice. METHODS RNA from the jejunum of wild-type and W/W V mice was analyzed using a differential gene display method. RESULTS One candidate gene, encoding a novel small GTPase of the RAS superfamily, was significantly suppressed both in fed and starved W/WV mice. The full-length clone of the murine gene and its human and xenopus counterparts were designated GTP-binding protein, 28 kDa (G28K). Human G28K cDNA encodes a protein of 258 amino acids with homology to the human cell division cycle 42/G25K protein. This gene is located at 1q42.11-q42.3. G28K was abundantly expressed in the human stomach and the small intestine. Semi-quantitative reverse transcription-polymerase chain reaction analysis revealed expression of G28K mRNA within single isolated ICC. CONCLUSIONS Gene analysis showed that G28K was differentially expressed in the small intestines of wild-type and W/W V mice. Interstitial cells of Cajal within the small intestine expressed mRNA for G28K. The specific downregulation of G28K in the jejunum of W/W V mice, and high expression in human intestinal tissue suggest that the G28K gene might be associated with ICC function in mice and in humans.
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Affiliation(s)
- Yataro Daigo
- Department of Medicine, University of Yamanashi School of Medicine, Yamanashi, Japan
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10
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Sakuma T, Takayama I, Zai H, Sekido Y, Kijima H, Ogoshi K, Makuuchi H, Shirai T, Mine T. A case for gastrointestinal stromal tumor (GIST) with reference to its ultrastructure and 'gain-of-function' mutation. Tokai J Exp Clin Med 2003; 28:89-96. [PMID: 14714834] [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: 04/27/2023]
Abstract
A case for primary gastrointestinal stromal tumor (GIST) is described with reference to its ultrastructural characteristics and mutation within the exon 11 of c-kit gene. A forty-seven years old woman complaining of dysphasia was examined by endoscopy, which depicted a submucosal tumor (70 mm in diameter) with ulcerations at the fundus of the stomach. Histopathologically, the tumor cells had large nuclei and eosinophilic cytoplasm and were frequently during mitosis phase. The tumor cells were immunopositive for KIT, CD 34 and vimentin, suggesting their fibroblast-like characteristics. In contrast, desmin and S-100, a smooth muscle and an enteroglial marker, were not immunopositive within the cells. At least 30 % of the tumor cells possessed MIB-I and 20 % of them possessed p53, which are compatible with fast development of the tumor. By electron microscopy, the tumor cells possessed large oval nuclei, abundant mitochondria, caveolae and smooth endoplasmic reticulums, while no gap junctions were seen on the cells: The tumor cells thus possessed interstitial cells-like characteristics at least in part. DNA mutation search for the tumor cells however realized no gain-of-function mutation within the exon 11 of the c-kit gene, suggesting existence of other mechanism for neoplasmic growth of the tumor cells classified as gastrointestinal stromal tumors.
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Affiliation(s)
- Toshiyuki Sakuma
- Department of Medicine, Tokai University School of Medicine, Bouseidai, Isehara, Japan
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Daigo Y, Takayama I, Ponder BAJ, Caldas C, Ward SM, Sanders KM, Fujino MA. Differential gene expression profile in the small intestines of mice lacking pacemaker interstitial cells of Cajal. BMC Gastroenterol 2003; 3:17. [PMID: 12831403 PMCID: PMC198276 DOI: 10.1186/1471-230x-3-17] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2003] [Accepted: 06/29/2003] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND We previously identified eight known and novel genes differentially expressed in the small intestines of wild type and W/WV mice, which have greatly reduced populations of the interstitial cells of Cajal, that are responsible for the generation of electrical slow waves, by using a differential gene display method. METHODS By using the same method we isolated additional candidate genes that were specifically down- or up-regulated in W/WV mice. Novel transcripts were designated as DDWMEST. RESULTS We isolated seven candidates that were specifically down- or up-regulated in W/WV mice. Two novel transcripts, DDWMEST 1 and -91 were increased in both fed and fasted W/WV mice. Expression of another five genes was suppressed in W/WV mice: ARG2 (Arginase II), ONZIN (encoding leukemia inhibitory factor regulated protein), and three novel transcripts: DDWMEST62, -84, and -100. Together with the previous report, we identified fifteen differentially expressed genes in total in the small intestines of W/WV mice. Eight of these genes were reduced in the jejunums of W/WV mice compared to age matched wild type mice, whereas the other seven genes showed an increase in expression. Differential expression was the same in fasted and fed animals, suggesting that the differences were independent of the dietetic state of the animal. CONCLUSIONS Several known and novel genes are differentially expressed in the small intestines of W/WV mice. Differential gene comparison might contribute to our understanding of motility disorders associated with the loss of the interstitial cells of Cajal.
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Affiliation(s)
- Yataro Daigo
- Department of Medicine, University of Yamanashi, Faculty of Medicine, Japan.
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12
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Daigo Y, Takayama I, Ponder BAJ, Caldas C, Ward SM, Sanders KM, Fujino MA. Differential gene expression in the murine gastric fundus lacking interstitial cells of Cajal. BMC Gastroenterol 2003; 3:14. [PMID: 12795813 PMCID: PMC165421 DOI: 10.1186/1471-230x-3-14] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2002] [Accepted: 06/10/2003] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND The muscle layers of murine gastric fundus have no interstitial cells of Cajal at the level of the myenteric plexus and only possess intramuscular interstitial cells and this tissue does not generate electric slow waves. The absence of intramuscular interstitial cells in W/WV mutants provides a unique opportunity to study the molecular changes that are associated with the loss of these intercalating cells. METHOD The gene expression profile of the gastric fundus of wild type and W/WV mice was assayed by murine microarray analysis displaying a total of 8734 elements. Queried genes from the microarray analysis were confirmed by semi-quantitative reverse transcription-polymerase chain reaction. RESULTS Twenty-one genes were differentially expressed in wild type and W/WV mice. Eleven transcripts had 2.0-2.5 fold higher mRNA expression in W/WV gastric fundus when compared to wild type tissues. Ten transcripts had 2.1-3.9 fold lower expression in W/WV mutants in comparison with wild type animals. None of these genes have ever been implicated in any bowel motility function. CONCLUSIONS These data provides evidence that several important genes have significantly changed in the murine fundus of W/WV mutants that lack intramuscular interstitial cells of Cajal and have reduced enteric motor neurotransmission.
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Affiliation(s)
- Yataro Daigo
- Department of Medicine, University of Yamanashi Faculty of Medicine, Japan
- Cancer Genomics Program, Department of Oncology, University of Cambridge School of Medicine, Cambridge, UK
| | - Ichiro Takayama
- Department of Medicine, University of Yamanashi Faculty of Medicine, Japan
| | - Bruce AJ Ponder
- Cancer Genomics Program, Department of Oncology, University of Cambridge School of Medicine, Cambridge, UK
| | - Carlos Caldas
- Cancer Genomics Program, Department of Oncology, University of Cambridge School of Medicine, Cambridge, UK
| | - Sean M Ward
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, USA
| | - Kenton M Sanders
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, USA
| | - Masayuki A Fujino
- Department of Medicine, University of Yamanashi Faculty of Medicine, Japan
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Daigo Y, Takayama I, Ward SM, Sanders KM, Fujino MA. Novel human and mouse genes encoding a shank-interacting protein and its upregulation in gastric fundus of W/WV mouse. J Gastroenterol Hepatol 2003; 18:712-8. [PMID: 12753155 DOI: 10.1046/j.1440-1746.2003.03046.x] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIMS A division of labor exists between different classes of interstitial cells of Cajal (ICC) in the gastrointestinal tract. In the stomach and small intestine, ICC at the level of the myenteric plexus (IC-MY) act as slow wave pacemaker cells, whereas intramuscular ICC (IC-IM) in the stomach act as intermediaries in enteric motor neurotransmission. The muscle layers of the gastric fundus do not have IC-MY, therefore electric slow waves are not generated. Intramuscular ICC are absent in the gastric fundus of W/WV mutant mice, and excitatory and inhibitory motor nerve responses are reduced in these tissues. The absence of IC-IM in W/WV mutants in the fundus provides a unique opportunity to study the molecular changes that are associated with the loss of these cells. METHODS The tissue gene expression of wild-type and W/WV mice from gastric fundus was assayed using a murine microarray chip analysis displaying a total of 8734 elements. RESULTS Twenty-one queries were differentially expressed in wild-type and W/WV mice. One candidate gene, encoding a novel protein homologous to rat Shank-interacting protein (Sharpin) was significantly upregulated in fed and starved W/WV mice. The full-length clone of the murine gene and its human counterpart were isolated and designated as Shank-interacting protein-like 1 (SIPL1). Human SIPL1 complementary DNA encodes a protein of 345 amino acids. This gene was localized to chromosome 8. SIPL1 was abundantly expressed in human stomach and small intestine, and scarcely expressed in cecum and rectum. CONCLUSIONS Gene analysis showed that SIPL1 differentially express in the gastric fundus of normal and W/WV mice. The upregulation of SIPL1 in the fundus of W/WV mice, and expression in the upper gastrointestinal tract suggest that the SIPL1 gene could be associated with ICC function in mice and humans.
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Affiliation(s)
- Yataro Daigo
- Department of Medicine, University of Yamanashi Medical School, Yamanashi, Japan
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14
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Zai H, Takayama I, Mine T, Miwa T. For whom do physicians examine gastric emptying? The actual situation and prospects for gastric emptying measurement. J Gastroenterol 2003; 37:877-8. [PMID: 12424577 DOI: 10.1007/s005350200147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 02/04/2023]
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Takayama I, Daigo Y, Ward SM, Sanders KM, Walker RL, Horowitz B, Yamanaka T, Fujino MA. Novel human and mouse genes encoding an acid phosphatase family member and its downregulation in W/W(V) mouse jejunum. Gut 2002; 50:790-6. [PMID: 12010880 PMCID: PMC1773242 DOI: 10.1136/gut.50.6.790] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Abstract
BACKGROUND AND AIMS Interstitial cells of Cajal (ICC) are pacemakers and mediators of motor neurotransmission in gastrointestinal smooth muscles. ICC require cellular signalling via Kit, a receptor tyrosine kinase, for development and maintenance of phenotype. Much of the evidence demonstrating the functions of ICC comes from studies of W/W(V) mice, which have reduced Kit function and reductions in specific populations of ICC. The aim of the present study was to differentially examine gene expression in the small intestines of wild-type and W/W(V) mutant mice. METHODS AND RESULTS RNA from the jejunums of wild-type and W/W(V) mutants was analysed using a differential gene display method. Eighteen queries were identified as novel genes that were differentially displayed in wild-type and W/W(V) mice. One candidate gene, encoding a novel acid phosphatase-like protein, was significantly suppressed in fed and starved W/W(V) mice. The full length clone of the murine gene and its human counterpart were designated acid phosphatase-like protein 1 (ACPL1). Human ACPL1 cDNA encodes a protein of 428 amino acids with homology to human prostatic acid phosphatase protein. This gene is located at 1q21. ACPL1 was abundantly expressed in the human small intestine and colon. Gene products were found to be cytoplasmic in transfected COS-7 cells. Reverse transcription-polymerase chain reaction analysis revealed expression of ACPL1 mRNA within single isolated ICCs. CONCLUSIONS Gene analysis showed that ACPL1 was differentially expressed in the small intestines of normal and W/W(V) mice. ICC within the small intestine expressed mRNA for ACPL1. Specific downregulation of ACPL1 in the jejunums of W/W(V) mice and high expression in human intestinal tissue suggest that the ACPL1 gene could be associated with ICC function in mice and humans.
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Affiliation(s)
- I Takayama
- Department of Medicine, Yamanashi Medical University School of Medicine, Yamanashi 409-3898, Japan.
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Ohno S, Kato Y, Xiang T, Terada N, Takayama I, Fujii Y, Baba T. Ultrastructural study of mouse renal glomeruli under various hemodynamic conditions by an "in vivo cryotechnique". Ital J Anat Embryol 2002; 106:431-8. [PMID: 11729986] [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: 02/22/2023]
Abstract
Three-dimensional ultrastructure of mouse renal glomeruli under various hemodynamic conditions was studied by scanning electron microscopy with an "in vivo cryotechnique" followed by freeze-substitution. These results were also compared with those of conventionally fixed glomeruli at different perfusion pressures. Some kidneys of anesthetized mice were directly frozen in vivo under normal blood flow condition. Others were frozen in the same way after ligation of the lower abdominal aorta or their heart arrest. The frozen specimens were routinely freeze-substituted, freeze-dried and ion-sputtered for SEM. For another conventional fixation method, some kidneys were perfused with glutaraldehyde at pressures of 150 cm or 250 cm water, and other renal cortical tissues were routinely immersion-fixed with glutaraldehyde. In freeze-substituted specimens with the in vivo cryotechnique, interdigitating foot processes of podocytes exhibited smooth surface contours with less shrinkage and their surfaces were arranged more tightly than those seen by the conventional fixation method. In the anesthetized mice, filtration slits between the foot processes were found to be narrow after the heart arrest, but they were wide under the normal blood flow condition. After the aorta ligation, the filtration slits became wider and the foot processes were more elongated. The ultrastructure of capillary loops in functioning renal glomeruli were revealed to be dynamically changing in the living state, depending on various hemodynamic conditions.
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Affiliation(s)
- S Ohno
- Department of Anatomy, Yamanashi Medical University, Japan.
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17
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Takayama I, Horiguchi K, Daigo Y, Mine T, Fujino MA, Ohno S. The interstitial cells of Cajal and a gastroenteric pacemaker system. Arch Histol Cytol 2002; 65:1-26. [PMID: 12002607 DOI: 10.1679/aohc.65.1] [Citation(s) in RCA: 46] [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] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
In spite of a claim by Kobayashi (1990) that they do not correspond to the cells originally depicted by CAJAL, a particular category of fibroblast-like cells have been identified in the gut by electron microscopy (Faussone-Pellegrini, 1977; Thuneberg, 1980) and by immunohistochemistry for Kit protein (Maeda et al., 1992) under the term of the "interstitial cells of Cajal (ICC)". Generating electrical slow waves, the ICC are intercalated between the intramural neurons and the effector smooth muscular cells, to form a gastroenteric pacemaker system. ICC at the level of the myenteric plexus (IC-MY) are multipolar cells forming a reticular network. The network of IC-MY which is believed to be the origin of electrical slow waves is morphologically independent from but associated with the myenteric plexus. On the other hand, intramuscular ICC (IC-IM) usually have spindle-shaped contours arranged in parallel with the bulk smooth muscle cells. Associated with nerve bundles and blood vessels, the IC-IM possess receptors for neurotransmitters and such circulating hormones as cholecystokinin, suggesting their roles in neuromuscular and hormone-muscular transmissions. In addition, gap junctions connect the IC-MY and IC-IM, thereby realizing the electrically synchronized integrity of ICC as a pacemaker system in the gut. The smooth muscle cells are also coupled with ICC via gap junctions, and the functional unit thus formed enables rhythmically synchronized contractions and relaxations. It has recently been found that a lack of Kit-expressing cells may induce hyper-contractility of the tunica muscularis in vitro, whereas a decrease in Kit expression within the muscle wall causes dysmotility-like symptoms in vivo. The pacemaker system in the gut thus seems to play a critical role in the maintenance of both moderate and normal motility of the digestive tract. A loss of Kit positive cells has been detected in several diseases with an impaired motor activity, including diabetic gastroenteropathy. Pathogenesis of these diseases is thought to be accounted for by impaired slow waves and neuromuscular transmissions; a pacemaker disorder may possibly induce a dysmotility-like symptom called 'gastroenteric arrhythmia'. A knowledge of the structure and function of the ICC and the pacemaker system provides a basis for clarifying the normal mechanism and the pathophysiology of motility in the digestive tract.
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Affiliation(s)
- Ichiro Takayama
- Department of Anatomy, Yamanashi Medical University School of Medicine, Japan.
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18
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Chang IY, Glasgow NJ, Takayama I, Horiguchi K, Sanders KM, Ward SM. Loss of interstitial cells of Cajal and development of electrical dysfunction in murine small bowel obstruction. J Physiol 2001. [PMID: 11600689 DOI: 10.1111/j.1469- 7793.2001.0555c.xd] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
1. Partial obstruction of the murine ileum led to changes in the gross morphology and ultrastructure of the tunica muscularis. Populations of interstitial cells of Cajal (ICC) decreased oral, but not aboral, to the site of obstruction. Since ICC generate and propagate electrical slow waves in gastrointestinal muscles, we investigated whether the loss of ICC leads to loss of function in partial bowel obstruction. 2. Changes in ICC networks and electrical activity were monitored in the obstructed murine intestine using immunohistochemistry, electron microscopy and intracellular electrophysiological techniques. 3. Two weeks following the onset of a partial obstruction, the bowel increased in diameter and hypertrophy of the tunica muscularis was observed oral to the obstruction site. ICC networks were disrupted oral to the obstruction, and this disruption was accompanied by the loss of electrical slow waves and responses to enteric nerve stimulation. These defects were not observed aboral to the obstruction. 4. Ultrastructural analysis revealed no evidence of cell death in regions where the lesion in ICC networks was developing. Cells with a morphology intermediate between smooth muscle cells and fibroblasts were found in locations that are typically populated by ICC. These cells may have been the redifferentiated remnants of ICC networks. 5. Removal of the obstruction led to the redevelopment of ICC networks and recovery of slow wave activity within 30 days. Neural responses were partially restored in 30 days. 6. These data describe the plasticity of ICC networks in response to partial obstruction. After obstruction the ICC phenotype was lost, but these cells regenerated when the obstruction was removed. This model may be an important tool for evaluating the cellular/molecular factors responsible for the regulation and maintenance of the ICC phenotype.
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Affiliation(s)
- I Y Chang
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, NV 89557, USA
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Chang IY, Glasgow NJ, Takayama I, Horiguchi K, Sanders KM, Ward SM. Loss of interstitial cells of Cajal and development of electrical dysfunction in murine small bowel obstruction. J Physiol 2001; 536:555-68. [PMID: 11600689 PMCID: PMC2278884 DOI: 10.1111/j.1469-7793.2001.0555c.xd] [Citation(s) in RCA: 170] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
1. Partial obstruction of the murine ileum led to changes in the gross morphology and ultrastructure of the tunica muscularis. Populations of interstitial cells of Cajal (ICC) decreased oral, but not aboral, to the site of obstruction. Since ICC generate and propagate electrical slow waves in gastrointestinal muscles, we investigated whether the loss of ICC leads to loss of function in partial bowel obstruction. 2. Changes in ICC networks and electrical activity were monitored in the obstructed murine intestine using immunohistochemistry, electron microscopy and intracellular electrophysiological techniques. 3. Two weeks following the onset of a partial obstruction, the bowel increased in diameter and hypertrophy of the tunica muscularis was observed oral to the obstruction site. ICC networks were disrupted oral to the obstruction, and this disruption was accompanied by the loss of electrical slow waves and responses to enteric nerve stimulation. These defects were not observed aboral to the obstruction. 4. Ultrastructural analysis revealed no evidence of cell death in regions where the lesion in ICC networks was developing. Cells with a morphology intermediate between smooth muscle cells and fibroblasts were found in locations that are typically populated by ICC. These cells may have been the redifferentiated remnants of ICC networks. 5. Removal of the obstruction led to the redevelopment of ICC networks and recovery of slow wave activity within 30 days. Neural responses were partially restored in 30 days. 6. These data describe the plasticity of ICC networks in response to partial obstruction. After obstruction the ICC phenotype was lost, but these cells regenerated when the obstruction was removed. This model may be an important tool for evaluating the cellular/molecular factors responsible for the regulation and maintenance of the ICC phenotype.
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Affiliation(s)
- I Y Chang
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, NV 89557, USA
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Takayama I, Daigo Y, Kojima Y, Fujino MA. [Gastrointestinal pacemaker system]. Nihon Shokakibyo Gakkai Zasshi 2001; 98:922-34. [PMID: 11524852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Affiliation(s)
- I Takayama
- Department of Medicine, Yamanashi Medical University School of Medicine
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Baba T, Rauch C, Xue M, Terada N, Fujii Y, Ueda H, Takayama I, Ohno S, Farge E, Sato SB. Clathrin-dependent and clathrin-independent endocytosis are differentially sensitive to insertion of poly (ethylene glycol)-derivatized cholesterol in the plasma membrane. Traffic 2001; 2:501-12. [PMID: 11422943 DOI: 10.1034/j.1600-0854.2001.20707.x] [Citation(s) in RCA: 42] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We examined the effect of a cholesterol derivative, poly (ethylene glycol) cholesteryl ether on the structure/function of clathrin-coated pits and caveolae. Addition of the compound to cultured cells induced progressive smoothening of the surface. Markedly, when the incorporated amount exceeded 10% equivalent of the surface area, fluid pinocytosis, but not endocytosis of transferrin, became inhibited in K562 cells. In A431 cells, both clathrin-independent fluid phase uptake and the internalization of fluorescent cholera-toxin B through caveolae were inhibited with concomitant flattening of caveolae. In contrast, clathrin-mediated internalization of transferrin was not affected until the incorporated poly (ethylene glycol) cholesteryl ether exceeded 20% equivalent of the plasma membrane surface area, at which point opened clathrin-coated pits accumulated. The cells were ruptured upon further addition of poly (ethylene glycol) cholesteryl ether. We propose that the primary reason for the differential effect of poly (ethylene glycol) cholesteryl ether is that the bulk membrane phase and caveolae are both more elastic than the rigid clathrin-coated pits. We analyzed the results with the current mechanical model (Rauch and Farge, Biophys J 2000;78:3036-3047) and suggest here that the functional clathrin-lattice is much stiffer than typical phospholipid bilayers.
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Affiliation(s)
- T Baba
- Department of Anatomy, Yamanashi Medical University, Yamanashi 409-3898, Japan
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22
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Takeda M, Takayama I, Terada N, Baba T, Ward SM, Ohno S, Fujino MA. Immunoelectron-microscopic study of Kit-expressing cells in the jejunum of wildtype and Ws/Ws rats. Cell Tissue Res 2001; 304:21-30. [PMID: 11383883 DOI: 10.1007/s004410000333] [Citation(s) in RCA: 20] [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: 12/29/2022]
Abstract
Interstitial cells of Cajal (ICC) are responsible for generating electrical slow waves in the gastrointestinal (GI) tract. Slow waves regulate the frequency of contractions of the tunica muscularis, and therefore ICC are critical for normal motility in the small intestine. ICC express Kit, the gene product of c-kit, a protooncogene that encodes a receptor tyrosine kinase. Physiological evidence demonstrating that ICC are pacemakers has come from experiments on W-mutant mice which have few Kit-positive cells at the level of the myenteric plexus (IC-MY) and also lack electrical slow waves. In the past identification of ICC required the use of electron microscopy, however the discovery that ICC express Kit has facilitated studies of the distribution of ICC in several species. Immunoelectron microscopy to relate ultrastructure to Kit expression has only been performed in a limited number of studies of mice. We examined the ultrastructure of Kit-expressing cells in the rat using immunoelectron microscopy and an anti-Kit antibody. We compared the presence and appearance of Kit-expressing ICC in wildtype and Ws/Ws rats, which carry a mutation in the white spotting locus and have a phenotype similar to W/Wv mutant mice. Kit-expressing cells could be detected in the myenteric plexus (MY) and deep muscular plexus (DMP) regions of the small intestine of wildtype animals. In Ws/Ws rats, Kit-expressing cells were not observed in the region of MY, but were observed in the DMP. The density of Kit-positive cells in the DMP of Ws/Ws rats was similar to those in wildtype rats. Electron microscopy showed that Kit-expressing cells at the level of the MY of the rat had similar ultrastructural features as IC-MY in wildtype mice. IC-DMP in the rat of both wildtype and Ws/Ws mutants were similar in structure to IC-DMP of the mouse. We conclude that wildtype rats have IC-MY and IC-DMP in the tunica muscularis of the jejunum. ICC express Kit-like immunoreactivity (Kit-LI) in the rat as in the mouse. IC-MY are absent in the small intestine of Ws/Ws rats, and this corresponds to the lack of Kit-labeling in this region. Ws/Ws rats, however, possess IC-DMP with normal ultrastructural features and Kit-LI. The absence of IC-MY of Ws/Ws rats is likely to account for the abnormal contractile activity of the GI tract observed in these mutants. The present study suggests that Ws/Ws rats could provide an interesting model to investigate the physiological significance of pacemaker activity because they manifest a defect in IC-MY.
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Affiliation(s)
- M Takeda
- Department of Anatomy, Yamanashi Medical University, Tamaho, Japan
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23
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Abstract
UNLABELLED Much of the evidence demonstrating the role of interstitial cells of Cajal (ICC) in pacemaking and neurotransmission in the gastrointestinal tract comes from studies of W/W(V) mice. These animals have few pacemaker ICC in the small bowel due to reduced functional Kit protein. We examined gene expression in the small intestines of wildtype and W/W(V) mice. RNA expression in the jejunums of wildtype and W/W(V) mutants was studied using a differential gene expression METHOD Seven known genes were differentially expressed in wildtype and W/W(V) mice. COX7B (cytochrome c oxidase, subunit VIIb) and SORCIN (encoding multidrug-resistance complex, class 4) were suppressed in both fed and fasted W/W(V) mice. Expression of another five genes was increased in W/W(V) mice: ADA (adenosine deaminase), MDH1 (malate dehydrogenase), RPL-8 (ribosomal protein L8), SPTB2 (spectrin, nonerythroid, beta subunit), and p6-5 (encoding phosphorylcholine [PC] T-cell suppressor factor [TsF]). Differential expression was the same in fasted and fed animals, suggesting that the differences were independent of the dietetic state. We conclude that several genes are differentially expressed in the small intestines of W/W(V) mice where the major lesion is loss of pacemaker ICC. Differential gene display may help develop a molecular profile of motility disorders in which ICC are lost.
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Affiliation(s)
- I Takayama
- Department of Medicine, Yamanashi Medical University School of Medicine, Yamanashi, Japan.
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Abstract
In vitro studies on pacemaker-deficient W-mutants have revealed a disappearance of rhythmic contraction in their gastrointestinal tracts. Their contractile force has not been diminished, however. In contrast, W-mutants often present dysmoility-like symptoms with distension of the gastrointestinal tract in vivo. Gastrointestinal motility of W-mutant rats was examined in vivo by an extraluminal strain-gauge force transducer method. We examined a normal gastrointestinal motor pattern in the rats with two distinct motor phases, digestive and interdigestive. Moreover, we detected a failure to form an interdigestive contractile complex in pacemaker-deficient rats. The interdigestive motor activity of the gastrointestinal tract is important for cleaning gastrointestinal tract in preparation for the next meal. The impairment of the interdigestive contractile complex may be related to the dysmoility-like symptoms of W-mutant rats in vivo.
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Affiliation(s)
- I Takayama
- Department of Internal Medicine, Animal Research Centre, Yamanashi Medical University, Japan
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Takayama I, Fujii Y, Terada N, Baba T, Kato Y, Fujino MA, Ohno S. Topographical difference of cytoskeletal organization in smooth muscle cells of rat duodenum revealed by quick-freezing and deep-etching method. Histol Histopathol 2000; 15:1059-66. [PMID: 11005230 DOI: 10.14670/hh-15.1059] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The sarcolemmal domain of rat duodenal smooth muscle cells includes caveolae and associated cytoskeletal or filamentous elements. We have used the quick-freezing, deep-etching method to examine the three dimensional relationships between these components. Replica membranes for separated strips of rat duodenal muscle layers were routinely prepared after extraction soluble proteins from cytoplasm and extracellular matrix. As results, 1) cytoskeletal elements in smooth muscle cells consisted mainly of striated thin filaments; 2) thin filaments were connected with some plasma membranes through filaments associated with the sarcolemma, which formed fine network structures beneath the sarcolemma; 3) many bridging structures between the filaments associated with the sarcolemma and the extracellular matrix were frequently detected in the plasma membrane; and 4) compact filaments associated with the sarcolemma almost disappeared near the caveolae, and only thin filaments were anchored to their neck parts. The special arrangement of the cytoskeletal components, which is probably necessary for the intestinal motility, characterizes the topographical difference of the smooth muscle sarcolemma.
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Affiliation(s)
- I Takayama
- Department of Internal Medicine, Yamanashi University School of Medicine, Tamaho, Japan.
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Abstract
Patients with long-standing diabetes commonly suffer from gastric neuromuscular dysfunction (gastropathy) causing symptoms ranging from postprandial bloating to recurrent vomiting. Autonomic neuropathy is generally believed to be responsible for diabetic gastropathy and the underlying impairments in gastric emptying (gastroparesis) and receptive relaxation, but the specific mechanisms have not been elucidated. Recently, it has been recognized that interstitial cells of Cajal generate electrical pacemaker activity and mediate motor neurotransmission in the stomach. Loss or defects in interstitial cells could contribute to the development of diabetic gastroparesis. Gastric motility was characterized in spontaneously diabetic NOD/LtJ mice by measuring gastric emptying and by monitoring spontaneous and induced electrical activity in circular smooth muscle cells. Interstitial cells of Cajal were studied by Kit immunofluorescence and transmission electron microscopy. Diabetic mice developed delayed gastric emptying, impaired electrical pacemaking, and reduced motor neurotransmission. Interstitial cells of Cajal were greatly reduced in the distal stomach, and the normally close associations between these cells and enteric nerve terminals were infrequent. Our observations suggest that damage to interstitial cells of Cajal may play a key role in the pathogenesis of diabetic gastropathy.
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Affiliation(s)
- T Ordög
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno 89557, USA
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Takayama I, Terada N, Baba T, Ueda H, Fujii Y, Kato Y, Ohno S. Dynamic ultrastructure of mouse pulmonary alveoli revealed by an in vivo cryotechnique in combination with freeze-substitution. J Anat 2000; 197 ( Pt 2):199-205. [PMID: 11005712 PMCID: PMC1468119 DOI: 10.1046/j.1469-7580.2000.19720199.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A morphological approach to cell dynamics is usually difficult, since routine preparative techniques for electron microscopy always induce artifacts due to cessation of the blood supply into organs. An in vivo cryotechnique followed by the freeze-substitution method probably reduces such problems. It was applied for examining the pulmonary alveoli of BALB/c mice in vivo. The following ultrastructural features were revealed. (1) A surfactant layer provided a continuous covering to the alveolar epithelium. (2) Pleural epithelial cells, alveolar cells and endothelial cells contained many small vesicles and pits. In the alveolar epithelium, they were often localised near microtubules. (3) Typical lamellar structures in large alveolar epithelial cells were rarely detected. (4) Circulating erythrocytes with various shapes were observed in branching blood capillaries. (5) A close association between erythrocytes and the endothelium was seen at the peripheral alveolar septum. Such ultrastructural arrangements may be appropriate for the physiological functions of the pulmonary alveoli, such as exchanges of gases or materials in vivo.
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Affiliation(s)
- I Takayama
- Department of Anatomy, Yamanashi Medical University, Tamaho, Japan.
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Ueda H, Baba T, Terada N, Kato Y, Fujii Y, Takayama I, Mei X, Ohno S. Immunolocalization of dystrobrevin in the astrocytic endfeet and endothelial cells in the rat cerebellum. Neurosci Lett 2000; 283:121-4. [PMID: 10739890 DOI: 10.1016/s0304-3940(00)00925-3] [Citation(s) in RCA: 39] [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] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Dystrobrevin is a newly discovered dystrophin-associated protein that is classified as alpha- and beta-dystrobrevin. Previous studies reported that dystrophin, utrophin, syntrophin and beta-dystroglycan were expressed in the cerebellum. In the present study, we examined cellular and subcellular localization of dystrobrevin in the adult rat cerebellum immunohistochemically. Confocal microscopy showed that dystrobrevin was expressed around blood vessels and under the pia mater as dystrophin, utrophin and beta-dystroglycan were. Immunoelectron microscopy demonstrated that dystrobrevin was localized not only in the astrocytic endfeet around blood vessels and under the pia mater, but also in endothelial cells. Considering the fact that dystrobrevin possesses multiple phosphotyrosine kinase residues, these data suggest that dystrobrevin plays a role in blood-brain barrier functions as a component of the dystrophin complex.
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Affiliation(s)
- H Ueda
- Department of Anatomy, Yamanashi Medical University, Yamanashi, Japan.
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29
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Takayama I, Terada N, Baba T, Ueda H, Kato Y, Fujii Y, Ohno S. "In vivo cryotechnique" in combination with replica immunoelectron microscopy for caveolin in smooth muscle cells. Histochem Cell Biol 1999; 112:443-5. [PMID: 10651094 DOI: 10.1007/s004180050426] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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: 11/28/2022]
Abstract
A novel "in vivo cryotechnique" with replica immunoelectron microscopy was developed for detecting caveolin localization on replica membranes prepared directly from living smooth muscle cells. After quick-freezing mouse duodenal walls by our "in vivo cryotechnique", the specimens were prepared for freeze-fracture and deep-etch replica membranes. Then they were treated with 5% SDS and 0.5% collagenase to keep some antigens on the replica membranes. The immunogold method could be used to clarify the localization of the caveolin antigen in relation to three-dimensional ultrastructures of living smooth muscle cells. Our new cryotechnique can provide native organization of functional molecules in living cells.
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Affiliation(s)
- I Takayama
- Department of Anatomy, Yamanashi Medical University, Tamaho, Japan
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30
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Abstract
A quick-freezing and deep-etching (QF-DE) method was employed with whole-mount strips of rat duodenal muscle walls to exhibit the cytoskeletons of the myenteric plexus. Nerve fibers in the myenteric plexus, which contained fewer neurofilaments than other types of neurons examined, had many varicosed contours, and were bundled by enteroglial cells. Cytoskeleton arrays were rarely observed in the varicosed regions, where synaptic vesicles were often seen, although other nerve regions contained many neurofilaments running almost in parallel with the nerve fiber bundle. Enteroglial cells had short cytoskeletons predominantly across the cytoplasm, becoming thinner the around varicosed regions of the nerve bundles. Such enteroglial extruded areas were often in close association with neighboring nerve fibers, indicating intercommunications between the nerve fibers. In distal parts of enteric nerve processes, there were numerous synaptic vesicles, but few neurofilaments. Smooth muscle cells were closely associated with the enteric nerve processes. Fine network structures, responsible for the extracellular matrix, were present between the smooth muscle cells and the enteric nerve processes. These specific structures of the myenteric plexus could be important for signalling or for the transportation of neurotransmitters involved in gut motility.
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Affiliation(s)
- I Takayama
- First Department of Medicine, Yamanashi Medical University, Tamaho, Japan
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31
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Pineda L, Harada T, Nakano A, Ohsugi Y, Matsuno A, Nagashima T, Takekoshi S, Osamura R, Watanabe K, Mori H, Nomura T, Sasaki J, HEIJI N, KAMEYA T, KOBAYASHI I, SATO Y, KAWASE T, Kato Y, Baba T, Terada N, Ueda H, Takayama I, Fujii Y, Ohno S, Tamayama T, Watanabe M, Watanabe J, Takamori Y, Mondo H, Kanamura S, IWATSUKI H, SUDA M, KUMANO I, OGAWA C, Inoue S, Naito I, MATSUZAKI T, SUZUKI T, TAKATA K, TAKEYA M, TOMOKIYO RI, JINNOUCHI K, TAKAHASHI K, UDAKA N, ITO T, KITAMURA H, KAGEYAMA R, Nemoto N, Honma T, Murakami H, Lu W, Ushiyama H, Kanai Y, LU W, NEMOTO N, USHIYAMA H, KOSHIKAWA N, MIZUSHIMA H, MIYAZAKI K, Sano M, Umezawa A, Suzuki A, Honda T, Shimoda K, Hata JI, IMAEDA H, TAKAKI A, YAMAMOTO H, HAYASHI N, NAKAMURA T, FUJIMIYA M, MASAKI R, OHTANI-KANEKO R, YAMASHITA K, SAITO T, YAMADA K, YAMAGUCHI S, HIRATA K, CHIKAMORI K, Suzuki K, Nakazato K, Yoshida T, Nakajima K, Kawano JI, Sawaguchi A, Nagaike R, Oinuma T, Suganuma T, TAMAKI H, YAMASHINA S, NAKAZAWA A, USUDA N, SHI Y, LU H, XIE C, KAWATA M, OGAWA H, NISHI M, Yang Y, Ozawa H, Yuri K, Kawata M, OZAWA H, YANG Y, Ishimura K, Suzuki-Yamamoto T, Toida K, Tsuruo Y, Watanabe K, SETO-OHSHIMA A, UEDA S, HAGIWARA Y, ISHIZUYA-OKA A, HAMADA J, YAMAZOE I, TAKEUCHI Y, MATSUSHITA H, SAKAI H, KAWANO H, SAWADA T, KARASAWA N, ARAI R, NAGATSU I, IKEMOTO K, SHIMODA H, TAKAHASHI Y, KATO S, Iino S, Nojyo Y. Abstracts. Acta Histochem Cytochem 1999. [DOI: 10.1267/ahc.32.544] [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: 11/22/2022] Open
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Hideki Mori
- Department of Anatomy, Okayama University Medical School
| | - Takako Nomura
- Department of Anatomy, Okayama University Medical School
| | - Junzo Sasaki
- Department of Anatomy, Okayama University Medical School
| | - Naritaka HEIJI
- Department of Pathology, Kitasato University
- Department of Neurosurgery, Tokyo Dental College
| | - Toru KAMEYA
- Department of Pathology, Kitasato University
- Department of Neurosurgery, Tokyo Dental College
| | - Ikuo KOBAYASHI
- Department of Pathology, Kitasato University
- Department of Neurosurgery, Tokyo Dental College
| | - Yuichi SATO
- Department of Pathology, Kitasato University
- Department of Neurosurgery, Tokyo Dental College
| | - Takeshi KAWASE
- Department of Pathology, Kitasato University
- Department of Neurosurgery, Tokyo Dental College
| | | | | | | | | | | | | | | | | | | | - Jun Watanabe
- Department of Anatomy, Kansai Medical University
| | | | - Hiroko Mondo
- Department of Anatomy, Kansai Medical University
| | | | | | - Masumi SUDA
- Department of Anatomy, Kawasaki Medical School
| | | | | | | | | | - Toshiyuki MATSUZAKI
- Laboratory of Molecular and Cellular Morphology, Institute for Molecular and Cellular Regulation, Gunma University
| | - Takeshi SUZUKI
- Laboratory of Molecular and Cellular Morphology, Institute for Molecular and Cellular Regulation, Gunma University
| | - Kuniaki TAKATA
- Laboratory of Molecular and Cellular Morphology, Institute for Molecular and Cellular Regulation, Gunma University
| | - Motohiro TAKEYA
- Second Department of Pathology, Kumamoto University School of Medicine
| | | | | | - Kiyoshi TAKAHASHI
- Second Department of Pathology, Kumamoto University School of Medicine
| | - Naoko UDAKA
- Department of Pathology, Yokohama City University School of Medicine
| | - Takaaki ITO
- Department of Pathology, Yokohama City University School of Medicine
| | - Hitoshi KITAMURA
- Department of Pathology, Yokohama City University School of Medicine
| | | | | | - Taku Honma
- Departments of Pathology, Kyorin University School of Medicine
| | | | - Wei Lu
- Departments of Pathology, Kyorin University School of Medicine
| | | | - Yoshikatsu Kanai
- Department of Pharmacology, Kyorin University School of Medicine
| | - Wei LU
- Division of Cell Biology, Kihara Institute for Biological Research Yokohama City University
| | - Norimichi NEMOTO
- Division of Cell Biology, Kihara Institute for Biological Research Yokohama City University
| | - Hisashi USHIYAMA
- Division of Cell Biology, Kihara Institute for Biological Research Yokohama City University
| | - Naohiko KOSHIKAWA
- Division of Cell Biology, Kihara Institute for Biological Research Yokohama City University
| | - Hiroto MIZUSHIMA
- Division of Cell Biology, Kihara Institute for Biological Research Yokohama City University
| | - Kaoru MIYAZAKI
- Division of Cell Biology, Kihara Institute for Biological Research Yokohama City University
| | - Makoto Sano
- Department of Pathology, Keio University School of Medicine
| | | | - Atsushi Suzuki
- Department of Pathology, Keio University School of Medicine
- Obstetrics and Gynecology, Keio University School of Medicine
| | - Takahiro Honda
- Department of Pathology, Keio University School of Medicine
- Obstetrics and Gynecology, Keio University School of Medicine
| | - Kouji Shimoda
- Laboratory Animal Center, Keio University School of Medicine
| | - Jun-ichi Hata
- Division of Cell Biology, Kihara Institute for Biological Research Yokohama City University
| | | | - Atsushi TAKAKI
- Depatment of Integrative Physiology, Graduate School of Medical Science
| | | | - Naoki HAYASHI
- Department of Anatomy, Shiga University of Medical Science
| | | | | | - Runa MASAKI
- Departments of Anatomy Graduate School of Science. Tokyo Metropolitan University
- Departments of Surgery, St. Marianna University School of Medicine
| | | | - Kayoko YAMASHITA
- Departments of Anatomy Graduate School of Science. Tokyo Metropolitan University
| | - Tare SAITO
- Department of Biological Sciences, Graduate School of Science. Tokyo Metropolitan University
| | - Kyoji YAMADA
- Departments of Surgery, St. Marianna University School of Medicine
| | - Susumu YAMAGUCHI
- Departments of Surgery, St. Marianna University School of Medicine
| | - Kazuaki HIRATA
- Departments of Anatomy Graduate School of Science. Tokyo Metropolitan University
| | | | | | | | | | | | | | | | | | | | | | - Hideaki TAMAKI
- Department of Anatomy, Kitasato University School of Medicine
| | | | - Ayami NAKAZAWA
- Department of Anatomy and Cell Biology, Shinshu University School of Medicine
| | - Nobuteru USUDA
- Department of Anatomy and Cell Biology, Shinshu University School of Medicine
| | - Yuxiu SHI
- Department of Histology and Embryology, China Medical University
| | - Haiping LU
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine
| | - Cangxia XIE
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine
- Dept. of Anat. and Neurobiol. Kyoto Prefectrual Univ. of Medicine
| | - Mitsuhiro KAWATA
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine
- Dept. of Anat. and Neurobiol. Kyoto Prefectrual Univ. of Medicine
| | - Hiroshi OGAWA
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine
| | - Mayumi NISHI
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine
| | - Yimu Yang
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine
| | - Hitoshi Ozawa
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine
| | | | - Mituhiro Kawata
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine
| | - Hitoshi OZAWA
- Dept. of Anat. and Neurobiol. Kyoto Prefectrual Univ. of Medicine
| | - Yimu YANG
- Dept. of Anat. and Neurobiol. Kyoto Prefectrual Univ. of Medicine
| | | | | | | | | | | | - Akiko SETO-OHSHIMA
- Department of Morphology, Institute for Developmental Research, Aichi Human Service Center
| | - Shuichi UEDA
- Department of Histology and Neurobiology, Dokkyo University School of Medicine
- Department of Histology and Neurobiology, and Orthopedics, Dokkyo University School of Medicine
| | - Yuri HAGIWARA
- Department of Histology and Neurobiology, Dokkyo University School of Medicine
| | - Atsuko ISHIZUYA-OKA
- Department of Histology and Neurobiology, Dokkyo University School of Medicine
- Department of Histology and Neurobiology, and Orthopedics, Dokkyo University School of Medicine
| | - Junichiro HAMADA
- Department of Histology and Neurobiology, and Orthopedics, Dokkyo University School of Medicine
| | - Ichiro YAMAZOE
- Department of Pediatrics, Kyoto Prefectural University of Medicine
| | | | | | - Hisahiro SAKAI
- Department of Pediatrics, Kyoto Prefectural University of Medicine
| | - Hisashi KAWANO
- Department of Pediatrics, Kyoto Prefectural University of Medicine
| | - Tadashi SAWADA
- Department of Pediatrics, Kyoto Prefectural University of Medicine
| | | | - Ryohachi ARAI
- 1St Anatomy, Fujita Health University School of Medicine
- Department of Anatomy, Fujita Heath University, School of Medicine
| | - Ikuko NAGATSU
- Department of 2nd Fujita Health University School of Medicine
- Department of Anatomy, Fujita Heath University, School of Medicine
| | - Keiko IKEMOTO
- Department of Anatomy, Fujita Heath University, School of Medicine
| | | | | | - Seiji KATO
- Department of Anatomy, Oita Medical University
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Nagano M, Fujioka A, Shinoda K, YOSHIDA M, NISHI M, KIZAKI Z, SAWADA T, KAWATA M, KUROKAWA K, MURATA M, YAMADA H, KUDO M, USUDA N, KAMIJO K, NAKAZAWA A, OGIWARA N, YAMADA M, JOHKURA K, ITOH J, KAWAI K, SEARIZAWA A, YASUMURA K, OGAWA K, OSAMURA RY, SUMI Y, ITOH MT, YOSHIDA M, Yokota S, Sawaguchi A, Kawano JI, Nagaike R, Oinuma T, Suganuma T, IWATA T, OZAWA H, INUI E, UKIMURA O, KOJIMA M, MIKI T, YAMAMOTO T, SHIBATA Y, SHIN M, HISHIKAWA Y, YAMAGUCHI A, KOBAYASHI T, KOJI T, FUTAGAWA N, TAKANO H, NAGATA T, NAGATA K, TAKETANI S, ARAKI M, Araki M, Isobe Y, Nakane Y, Tudsuki M, SHIKATA N, TSUBURA A, ARAKI N, Okada T, Zinchuk VS, Kobayashi T, Seguchi H, Ito Y, Otsuki Y, Li X, Yatomi Y, Miura Y, Katoh R, Ozaki Y, Kawaoi A, SENDA T, Matsuta M, Matsuta M, Akasaka T, Suzuki H, Yamazaki N, Yagila K, Okamura H, Ogawa A, Ito K, Maeda M, Ohtaki H, Funahashi H, Shioda S, Ikebe M, Matsumoto H, Ito K, MATSUDA TOMOYUKI, KAKIHARA KENSHI, UEDA MASASHI, TAMADA YOSHITAKA, HAYASHI SEIJI, IIJIMA NORIO, TANAKA MASAKI, IBATA YASUHIKO, NAGATA H, TAKEKOSHI S, OHNISHI T, ITOH J, HASEGAWA H, YAMAMOTO Y, OHNO S, WATANABE K, Kataoka Y, Iijima N, Kakihara K, Tamada Y, Hayashi S, Tanaka M, Hinuma S, Matsumoto H, Kitada C, Onda H, Honjo H, Ibata Y, INOUE K, TAMADA Y, IIJIMA N, HAYASHI S, TANAKA M, ISHIHARA A, IBATA Y, NAGATSU I, KARASAWA N, YAMADA K, Shirasu M, Kimura K, Mizoguchi A, Ide C, Matsumoto N, Kitada M, Chakrabortty S, Ueda H, Baba T, Kato Y, Takayama I, Fujii Y, Terada N, Ohno S. Abstracts. Acta Histochem Cytochem 1999. [DOI: 10.1267/ahc.32.526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Mamoru Nagano
- Department of Anatomy, Kinki University school of Medicine
| | - Atuko Fujioka
- Department of Anatomy, Kinki University school of Medicine
| | - Koh Shinoda
- Department of Anatomy, Yamaguchi University School of Medicine
| | - Maki YOSHIDA
- Department of Anatomy and Neurobiology
- Pediatrics, Kyoto Prefectural University of Medicine
| | | | - Zenro KIZAKI
- Pediatrics, Kyoto Prefectural University of Medicine
| | | | - Mitsuhiro KAWATA
- Department of Anatomy and Neurobiology
- Dept. of Anatomy & Neurobiology Kyoto Pref. Univ. of Med
| | | | - Maki MURATA
- Department of Anatomy, Shiga University of Medical Science
| | - Hisao YAMADA
- Department of Anatomy, Shiga University of Medical Science
| | - Motoi KUDO
- Department of Anatomy, Shiga University of Medical Science
| | - Nobuteru USUDA
- Department Anatomy and Cell Biology
- Department of Anatomy and Cell Biology, Shinshu University School of Medicine
| | - Keiju KAMIJO
- Department of Biochemistry, Shinshu University School of Medicine
| | - Ayami NAKAZAWA
- Department Anatomy and Cell Biology
- Department of Anatomy and Cell Biology, Shinshu University School of Medicine
| | - Naoko OGIWARA
- Department of Anatomy and Cell Biology, Shinshu University School of Medicine
| | | | - Kohei JOHKURA
- Department of Anatomy and Cell Biology, Shinshu University School of Medicine
| | | | | | | | | | | | | | - Yawara SUMI
- Department of Chemistry, St. Marianna University School of Medicine
| | - Masanori T. ITOH
- Department of Chemistry, St. Marianna University School of Medicine
| | - Minoru YOSHIDA
- Department of Chemistry, St. Marianna University School of Medicine
| | | | | | | | | | | | | | - Tsuyoshi IWATA
- Dept. of Anatomy & Neurobiology Kyoto Pref. Univ. of Med
- Dept. of Urology, Kyoto Pref. Univ. of Med
| | - Hitoshi OZAWA
- Dept. of Anatomy & Neurobiology Kyoto Pref. Univ. of Med
| | - Emi INUI
- Dept. of Urology, Kyoto Pref. Univ. of Med
| | | | | | | | - Tomomi YAMAMOTO
- Department of Otolaryngology Nagasaki University School of Medicine
| | - Yasuaki SHIBATA
- Department of Oral Pathology, Nagasaki University School of Dentisitry
| | - Masashi SHIN
- Department of Histology and Cell Biology, Nagasaki University School of Medicine
| | - Yoshitaka HISHIKAWA
- Department of Histology and Cell Biology, Nagasaki University School of Medicine
| | - Akira YAMAGUCHI
- Department of Oral Pathology, Nagasaki University School of Dentisitry
| | | | - Takehiko KOJI
- Department of Histology and Cell Biology, Nagasaki University School of Medicine
| | - Norifumi FUTAGAWA
- Department of Chemical Engineering and Materials Science, Doshisha University
| | - Hiroshi TAKANO
- Department of Chemical Engineering and Materials Science, Doshisha University
| | - Tetsuji NAGATA
- Department of Anatomy & Cell Biology, Shinshu University School of Medicine, Matsumoto and Department of Anatomy and Physiology, Nagano Women's Jr. College
- Department of Anatomy and Cell Biology, Shinshu University School of Medicine, Matsumoto and Department of Anatomy and Physiology, Nagano Women's Jr. College
| | | | | | | | | | | | | | - M. Tudsuki
- Fac. of Agri., Osaka Pref. Univ., Fac. of Appl. Biol. Sci
| | | | - Airo TSUBURA
- Department of Pathology II, Kansai Medical University
| | | | | | | | | | | | - Yuko Ito
- Dept. of Anatomy and Biology, Osaka Medical College
| | | | - Xin Li
- Department of Pathology Yamanashi Medical University
| | - Yutaka Yatomi
- Department of Laboratory Medicine, Yamanashi Medical University
| | - Yoshie Miura
- Department of Laboratory Medicine, Yamanashi Medical University
| | - Ryohei Katoh
- Department of Pathology Yamanashi Medical University
| | - Yukio Ozaki
- Department of Laboratory Medicine, Yamanashi Medical University
| | - Akira Kawaoi
- Department of Pathology Yamanashi Medical University
| | - Takao SENDA
- Department of Anatomy and Cell Biology, Nagoya University School of Medicine
| | - Mayumi Matsuta
- Departments of Dermatology, School of Medicine, lwale Medical University National Cancer Center
| | - Morimasa Matsuta
- Departments of Obstetrics and Gynecology, School of Medicine, lwale Medical University National Cancer Center
| | - Toshihide Akasaka
- Departments of Dermatology, School of Medicine, lwale Medical University National Cancer Center
| | - Hidehiko Suzuki
- Departments of plastic surgery, School of Medicine, lwale Medical University National Cancer Center
| | | | - Kazuhiro Yagila
- Department of Anatomy and Brain Science, Kobe university School of Medicine
- Dcpartmcnt of Anatomy, Kyoto Prefectural University of Medicine
| | - Hitoshi Okamura
- Department of Anatomy and Brain Science, Kobe university School of Medicine
| | | | | | - Masako Maeda
- Showa Univ. Sch. of Pharm. Sci
- Showa Univ. Sch. of Pharmaceutical Sciences
| | | | | | | | | | | | | | - TOMOYUKI MATSUDA
- Department of Anesthesiology, Prefectural University of Medicine
| | - KENSHI KAKIHARA
- Department of Anesthesiology, Prefectural University of Medicine
| | - MASASHI UEDA
- Department of Anesthesiology, Prefectural University of Medicine
| | | | - SEIJI HAYASHI
- Anatomy and neurobiology, Prefectural University of Medicine
| | - NORIO IIJIMA
- Anatomy and neurobiology, Prefectural University of Medicine
| | - MASAKI TANAKA
- Anatomy and neurobiology, Prefectural University of Medicine
| | - YASUHIKO IBATA
- Anatomy and neurobiology, Prefectural University of Medicine
| | | | | | - T. OHNISHI
- Dept. of Molecular Biology, Yokohama City Univ. Sch. of Med
| | - J. ITOH
- Lab. for Struct/Funct. Res., Tokai Univ. Sch. of Med
| | - H. HASEGAWA
- Lab. for Struct/Funct. Res., Tokai Univ. Sch. of Med
| | - Y. YAMAMOTO
- Res. Center for Advanced Sci. and Technol., Univ. of Tokyo
| | - S. OHNO
- Dept. of Molecular Biology, Yokohama City Univ. Sch. of Med
| | | | - Y Kataoka
- Department of Obstetrics and Gynecology, Prefectural University of Medicine
| | - N Iijima
- Department of Anatomy and Neurobiology, Prefectural University of Medicine
| | - K Kakihara
- Department of Anesthesiology, Prefectural University of Medicine
| | - Y Tamada
- Department of Anatomy and Neurobiology, Prefectural University of Medicine
| | - S Hayashi
- Department of Anatomy and Neurobiology, Prefectural University of Medicine
| | - M Tanaka
- Department of Anatomy and Neurobiology, Prefectural University of Medicine
| | - S Hinuma
- Takeda Chemical Industries Ltd. 4
| | | | - C Kitada
- Takeda Chemical Industries Ltd. 4
| | - H Onda
- Takeda Chemical Industries Ltd. 4
| | - H Honjo
- Department of Obstetrics and Gynecology, Prefectural University of Medicine
| | - Y Ibata
- Department of Anatomy and Neurobiology, Prefectural University of Medicine
| | - Keisuke INOUE
- Dept. of Anatomy & Neurobiology, Kyoto Prefectural University of Medicine
| | - Yoshitaka TAMADA
- Dept. of Anatomy & Neurobiology, Kyoto Prefectural University of Medicine
| | - Norio IIJIMA
- Dept. of Anatomy & Neurobiology, Kyoto Prefectural University of Medicine
| | - Seiji HAYASHI
- Dept. of Anatomy & Neurobiology, Kyoto Prefectural University of Medicine
| | - Masaki TANAKA
- Dept. of Anatomy & Neurobiology, Kyoto Prefectural University of Medicine
| | - Akihiko ISHIHARA
- Laboratory of Neurochemistry, Faculty of Integrated Human Study, Kyoto University
| | - Yasuhiko IBATA
- Dept. of Anatomy & Neurobiology, Kyoto Prefectural University of Medicine
| | - Ikuko NAGATSU
- Departrnent of Anatomy, School of Medicine, Fujita Health University
| | - Nobuyuki KARASAWA
- Departrnent of Anatomy, School of Medicine, Fujita Health University
| | - Keiki YAMADA
- Departrnent of Anatomy, School of Health Sciences, Fujita Health University
| | - Mikihiro Shirasu
- Department of Anatomy and Neurobiology, Kyoto University Graduate School of Medicine
| | - Kazushi Kimura
- Department of Anatomy and Neurobiology, Kyoto University Graduate School of Medicine
| | - Akira Mizoguchi
- Department of Anatomy and Neurobiology, Kyoto University Graduate School of Medicine
| | - Chizuka Ide
- Department of Anatomy and Neurobiology, Kyoto University Graduate School of Medicine
| | - Naoya Matsumoto
- Department of Anatomy and Neurobiology, Kyoto University Graduate School of Medicine
| | - Masaaki Kitada
- Department of Anatomy and Neurobiology, Kyoto University Graduate School of Medicine
| | | | - Hideho Ueda
- Department of Anatomy, Yamanashi Medical University
| | - Takeshi Baba
- Department of Anatomy, Yamanashi Medical University
| | - Yasuko Kato
- Department of Anatomy, Yamanashi Medical University
| | | | | | - Nobuo Terada
- Department of Anatomy, Yamanashi Medical University
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Takeda M, Takayama I, Miyazaki Y, Akahane Y, Ohno S, Fujino MA. Ultrastructural study of biopsy specimens of acute fatty liver of pregnancy. Med Mol Morphol 1998. [DOI: 10.1007/bf01547948] [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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34
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Kitahara F, Kashiwagi A, Kanai T, Idesawa T, Takayama I, Yoda Y, Kobayashi K, Ootaka M, Shimazaki R, Sato T, Nakamura T, Kojima Y, Morozumi A, Akahane K, Fujino MA. [An investigation of the factors influencing serum pepsinogen levels--sex, age, smoking, drinking]. Nihon Shokakibyo Gakkai Zasshi 1996; 93:867-75. [PMID: 8986077] [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: 02/03/2023]
Abstract
BACKGROUND Until now, the influence of sex, age, smoking, drinking on serum pepsinogen levels has been assessed by single regression analysis. However, the influence of those factors on pepsinogen levels should be assessed exactly by multiple regression analyses. SUBJECTS AND METHODS 891 subjects were collected from by questionnaire and serum tests. Analyses were done with serum pepsinogen I (PG I), pepsinogen II (PG II) and pepsinogen I/II ratio (PG I/II) as a criterion variable and as categorized explanatory variables, sex, age, current or past smoking habit, and current drinking habit. And analyses are done by Mann-Whitney U test, correlation coefficient, single regression method, multiple regression method. RESULTS PG I level is significantly higher in men than in women by Mann-Whitney U test. But the effect of sex factor is not remarkable by multiple regression analyses. PG II level increased and PG I/II level decreased with progression of age by all analyses methods. Current or past smoking elevates PG I level by Mann-Whitney U test, but current smoking dose and past smoking amount showed no dose-dependent associations with PG I level. Current drinking elevates PG I level by Mann-Whitney U test, but current drinking dose showed no dose-dependent associations with PG I. However, the effects of current smoking and current drinking to serum PG levels is not so large by multiple regression analyses. CONCLUSION The effects of sex, current smoking and current drinking to serum PG levels are not remarkable by multiple regression analyses. Significantly, PG II level increased and PG I/II level decreased with progression of age. Therefore it may not be necessary to consider the effects of sex, smoking habit and drinking habit when serum pepsinogen levels are used as markers for gastric cancer.
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Affiliation(s)
- F Kitahara
- Health Care Center, Yamanashi Prefectural Welfare Federation
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35
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Abstract
Morphological studies using immersion or perfusion fixation methods do not reveal the ultrastructure of functioning kidneys with normal circulation. A simple apparatus was developed for freezing the kidneys in vivo without stopping the blood supply, and the ultrastructure of the glomerular capillary loops was examined under different haemodynamic conditions. Mouse kidneys were frozen under normal blood flow conditions; others were frozen in the same way after ligation of the abdominal aorta at a point caudal to the renal arteries. They were then processed for the freeze-substitution or deep-etching method. Good ultrastructural preservation was obtained within about 5 microM depth from the frozen tissue surface. Functioning glomeruli with normal blood flow possessed open capillary lumens, different shapes of foot processes and atypical basement membranes with low density. Moreover, heterogeneity in width between foot processes was identified on the replica membranes. Under the acute conditions used to increase blood supply into the kidneys, the spaces between the flat foot processes became more widely dilated and the basement membrane was seen to be three-layered. The ultrastructure of glomeruli in functioning kidneys has been demonstrated for the first time by this "in vivo cryotechnique."
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Affiliation(s)
- S Ohno
- Department of Anatomy, Yamanashi Medical University, Japan
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36
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Takayama I, Fujii Y, Ohno S, Fujino MA. Freeze-fracture immunocytochemistry for intracellular localization of serotonin in mast cells stimulated with compound 48/80. Virchows Arch 1995; 426:267-70. [PMID: 7773506 DOI: 10.1007/bf00191364] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [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: 01/27/2023]
Abstract
Changes of intracellular localization of serotonin in rat mast cells were examined by freeze-fracture immunocytochemistry, to prevent the translocation of the serotonin antigen. Rat peritoneal cells including mast cells were stimulated in vitro with compound 48/80, at 17 degrees C for 0, 30 or 60 s for exocytosis to occur. The mast cells were fixed, quickly frozen and freeze-fractured to expose the antigen on the fractured surface. They were immunostained with serotonin antibody, and the immunoreactions on the fractured surface were examined on ultrathin sections by electron microscopy. Unstimulated mast cells exhibited serotonin localization mostly in each intragranular matrix. In contrast, mast cells stimulated for 30 s exhibited increased serotonin in their intergranular cytoplasm. Mast cells showed more distinct immunoreactions in the cytoplasm where degranulation would be promoted after 60 s. It is suggested that intracellular release of serotonin occurred in the stimulated mast cells.
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Affiliation(s)
- I Takayama
- First Department of Internal Medicine, Yamanashi Medical University, Japan
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37
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Takayama I, Fujii Y, Ohno S, Fujino MA. X-ray microanalysis of rat mast cells stimulated with compound 48/80 in combination with quick-freezing method. Virchows Arch 1994; 425:435-8. [PMID: 7820304 DOI: 10.1007/bf00189582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 01/27/2023]
Abstract
X-ray microanalysis was performed on rat mast cells prepared by quick-freezing, cryosectioning and freeze-drying (QF-FD) method, or quick-freezing and freeze-substitution (QF-FS) method. Peritoneal cells including mast cells were stimulated with compound 48/80 for 0, 10 or 30 s at 17 degrees C, and the mast cells stimulated for 30 s started exocytosis. In X-ray spectra of the QF-FD specimen, mast cells stimulated for 10 s increased their levels of phosphorus, sodium and chlorine in the intergranular cytoplasm prior to exocytosis, and kept this increase until 30 s after stimulation. In the QF-FS specimen, where soluble elements were removed, peaks of phosphorus, sulphur and potassium could be detected as elements in X-ray spectra. Phosphorus increased and potassium decreased in intergranular cytoplasm of mast cells stimulated for 10 s, and these changes became more obvious after 30 s. However, supplemental increase of other cations such as sodium could not be detected in the QF-FS specimens.
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Affiliation(s)
- I Takayama
- First Department of Medicine, Yamanashi Medical University, Japan
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38
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Takayama I, Fujii Y, Ohno S, Fujino MA. Morphological study of rat mast cells stimulated with compound 48/80 at different temperatures. Histochemistry 1994; 102:83-7. [PMID: 7822217 DOI: 10.1007/bf00269010] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Changes of mast cells stimulated with compound 48/80 were morphologically investigated at different temperatures. Peritoneal mast cells of male rats were stimulated in vitro at 4 or 17 degrees C. At 17 degrees C, mast cells stimulated for 10 s gave decreased fluorescent reactions for phalloidin. At 30 s stimulation, they showed typical exocytosis initiated by fusions of peripherally located secretory granules to the plasma membrane. In contrast, mast cells stimulated at 4 degrees C exhibited neither decrease of phalloidin reactions nor typical excytosis even after 30 s. It was inferred that the fusions were mediated by cytoplasmic elements, probably the actin filaments previously suggested to prevent release of secretory granules. Furthermore, the space between the perigranular membrane and granular contents was enlarged in some mast cells stimulated at 4 degrees C. The morphological changes suggested that equivocal events occurred also in the cytoplasm of these cells. The mast cells showed no typical exocytosis at 4 degrees C.
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Affiliation(s)
- I Takayama
- First Department of Medicine, Yamanashi Medical University, Japan
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39
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Takayama I, Fujii Y, Ohno S, Fujino MA. Ultrastructural study of mast cells stimulated with compound 48/80 as revealed by quick-freezing method. Virchows Arch 1994; 424:287-94. [PMID: 8186893 DOI: 10.1007/bf00194613] [Citation(s) in RCA: 8] [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: 01/29/2023]
Abstract
The ultrastructure of mast cells stimulated with compound 48/80 was examined by quick-freezing and deep-etching (QF-DE) or freeze-substitution (QF-FS) methods. Peritoneal cells including mast cells of adult male rats were stimulated in vitro with compound 48/80 at 17 degrees C for 0, 10, 30, 60 or 180 s. The QF-DE replicas revealed that the mast cells stimulated with compound 48/80 for 30 s decreased filamentous actin around secretory granules. In the QF-FS specimens, perigranular membranes in mast cells stimulated for 60 s formed pentalaminar structures between adjacent granules in their cytoplasm prior to degranulation. These findings suggest that preparatory states for degranulation occur in the whole cytoplasm of stimulated mast cells at early stages. Moreover, both QF-FS specimens and QF-DE replicas revealed a compact morphological appearance of discharged granules in the extracellular space, indicating the existence of considerable content within the granules. Skeletal structures in the granules were also demonstrated on QF-DE replicas prepared after extracting soluble elements from the cytoplasm. It is suggested that the granular contents associated with the skeletal structures are gradually detached from the discharged granules to ensure local concentration in the tissues.
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Affiliation(s)
- I Takayama
- First Department of Medicine, Yamanashi Medical University, Japan
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Takei M, Nozoe S, Tanaka H, Soejima Y, Manabe Y, Takayama I, Yamanaka T. Clinical features in anorexia nervosa lasting 10 years or more. Psychother Psychosom 1989; 52:140-5. [PMID: 2486392 DOI: 10.1159/000288315] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
To clarify the physical and mental symptoms of long-lasting anorexia nervosa (AN), we chose and examined 16 cases suffering from the disease for 10 years or more, among 138 cases admitted to our hospital with AN from 1972 to 1988. These prolonged cases almost changed into bulimic types and had various forms of abnormal eating behavior and physical symptoms. Frequency of abnormal eating behavior, other forms of abnormal behavior, physical and psychotic symptoms such as fear, were higher in the prolonged cases than in cases suffering for less than 3 years. In these prolonged cases, irreversible and life-threatening symptoms were especially common. Finally most of them experienced social withdrawal.
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Affiliation(s)
- M Takei
- First Department of Internal Medicine, Faculty of Medicine, Kagoshima University, Japan
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Kanehisa T, Kawano M, Takayama I, Sonoda J. [Behavior therapy; a new approach to the treatment of psychosomatic disorders]. Saishin Igaku 1971; 26:1554-63. [PMID: 4936622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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42
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Takayama I, Ando Y, Katsumi Y, Shozu R. [Therapy of malignant tumor of the head and neck region]. Nihon Jibiinkoka Gakkai Kaiho 1971; 74:422-3. [PMID: 5106645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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43
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Tanaka H, Takayama I, Ookubo N, Yoshimuta S, Kono Y. [Evaluation of a new benzodiazepine preparation, S-804, for the treatment of psychoneurotic and psychosomatic disorders by double-blind cross-over test]. Saishin Igaku 1970; 25:1128-36. [PMID: 4912179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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44
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Kimura N, Toshima H, Takayama I, Fukamizu T, Abe K. [Experimental aortic stenosis and insufficiency]. Nihon Rinsho 1966; 24:2376-8. [PMID: 6009062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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