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Plasticity and accommodation in the brain mechanism of transmission

Research Project

Project/Area Number 07304055
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section総合
Research Field 生物形態・構造
Research InstitutionTokyo Metropolitan Institute for Neuroscience

Principal Investigator

ICHIKAWA Masumi  Tokyo metropolitan institute for neuroscience, Anatomy & Embryology, Chief of Research Staff, 解剖発生学研究部門, 主任研究員 (20124414)

Co-Investigator(Kenkyū-buntansha) 小林 牧人  東京大学, 大学院・農学部, 助教授 (30183809)
前多 敬一郎  名古屋大学, 農学部, 助教授 (30181580)
MORI Yuji  University of Tokyo Associated Professor, 大学院・農学部, 助教授 (40157871)
MURAKAMI Shizuko  Juntendo Univesity Assistant Professor, 医学部, 助手 (20255649)
OKA Yoshitaka  University of Tokyo Associated Professor, 理学部, 助教授 (70143360)
PARK Min Kyun  University of Tokyo Associated Professor (00228694)
NISHIHARA Masugi  University of Tokyo Associated Professor (90145673)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥10,300,000 (Direct Cost: ¥10,300,000)
Fiscal Year 1996: ¥4,600,000 (Direct Cost: ¥4,600,000)
Fiscal Year 1995: ¥5,700,000 (Direct Cost: ¥5,700,000)
KeywordsNeuron / Terminal nerve / GnRH / Pulse generator / Hormone / Synapse / Neuropeptide / Neuromodulator / 神経系 / 神経伝達物質
Research Abstract

Molecular characteristics of GnRH receptor were analized and expression of mRNA of GnRH studied in situ hybridization.
Development of GnRH neurons was studied. Straying phenomenon of migrating GnRH neurons was found and the presebce of highly polysialated NCAN in the migrating route was identified in chick embryo.
Plasticity of GnRH neurons was studied. The neurons were induced structural changes by pheromonal stimulations.
Characterization of TTX-resistant persistent Na+ current underlying pacemaker potentials wes found in fish gonadotropin-releasing hormone (GnRH) neurons
Hypophyseal portal blood collection for analysis of GnRH neurosecretion was succeeded in Shiba goats
Tumor necrosis factor induced suppression of GnRH pulse generator activity in the rat.
Suppression of GnRH pulses by restriction of glucose avalability is mediated by sensors in the brain stem was elucidated.
Distribution of GnRH neurons was studied immunocytochemicall in doldfish brain. It was demonstrated a marked decrease of GnRH neurons after transection of olfactory tract.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] Ichikawa M: "Neuronal development,differentiation,and plasticity in the mammalian vomeronasal svstem." Zoological Scienc. 13. 627-639 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Oka Y: "Characterization of TTX resistant persistent Na+current underlying pacemaker potentials of fish gonadotropin-releasing hormone(GnRH)" J Neurophysiol. 75. 2397-2404 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Akazome Y,Park,MK,and Mori T: "Highly heterologous region in the N-terminal extracellular of reptilian follitropin receptors" Gen.Comp.Endocrinol.104. 374-381 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Tanaka T.Ohgata N,Kamomae H,Takeuchi Y,Mori Y,and Karsch FJ: "Hypophyseal portal blood collection for analysis of GnRH neurosecretion in Shiba goats" J.Reprod.Develop. 43(in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yoo MJ,Nishihara M,and Takahashi M: "Tumor necrosis factor-a mediates endotoxin induced suppression of gonadotropin-releasing hormone pulse generator activity in the rat" Endocrine J. 44. 141-148 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Maeda K-I and Tsukamura H: "Neuroendocrine mechanism mediating fasting-induced suppression of luteinizing hormone secretion in female rats" Acta Neurobiologiae Experimentalis. 56. 787-796 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Kobayashi M,Amano M,Kim M,Yoahiura Y,Soh, YC,Suetake H,and Aida K: "Gonadotropin-releasing hormone and gonadotropin in goldfish and masu salmon." Fish Physiol. Biochem.(in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Maeda K-I and Tsukamura H: "Neuroendocrine mechanism mediating fasting-induced suppression of luteinizing hormone secretion in female rats." Acta Neurobiologiae Experimentalis. 56. 787-796 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Yoo MJ,Nishihara M,and Takahashi M: "Tumor necrosis factor-a mediates endotoxin induced suppression of gonadotropin-releasing hormone pulse generator activity in the rat." Endocrine J. 44. 141-148 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Tanaka T,Ohgata N,Kamomae H,Takeuchi Y,Mori Y,and Karsch FJ: "Hypophyseal portal blood collection for analysis of GnRH neurosecretion in Shiba goats." J.Reprod. Develop.43 : (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Akazome Y,Par, MK,and Mori T: "Highly heterologous region in the N-terminal extracellular of reptilian follitropin receptors." Gen. Comp. Endocrinol.104. 374-381 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Oka Y: "Characterization of TTX-resistant persistent Na+ current underlying pacemaker potentials of fish gonadotropin-releasing hormone (GnRH) neurons." J Neurophysiol. 75. 2397-2404 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Ichikawa M: "Neuronal development, differentiation, and plasticity in the mammalian vomeronasal system." Zoological Science. 13. 627-639 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Ichikawa M: "Neuronal development,differentiation,and plasticity in the mammalian vomeronasal system." Zoological Science. 13. 627-639. ((1996))

    • Related Report
      1996 Annual Research Report
  • [Publications] Oka Y: "Characterization of TTX-resistant persistent Na+ current underlying pacemaker potentials of fish gonadotropin-releasing hormone neurons." J Neurophysiol. 75. 2397-2404. ((1996))

    • Related Report
      1996 Annual Research Report
  • [Publications] Akazome Y,Par,MK,Mori T: "Highly heterologous region in the N-terminal extracellular of reptilian follitropin receptors." Gen.Comp.Endocrinol.,. 104. 374-381. ((1996))

    • Related Report
      1996 Annual Research Report
  • [Publications] Tanaka T,Ohgata N,Mori Y,Takeuchi Y,Karsch FJ: "Hypophyseal portal blood collection for analysis of GnRH neurosecretion in Shiba goats." J.Reprod.Develop.(in press).

    • Related Report
      1996 Annual Research Report
  • [Publications] Yoo MJ,Nishihara M,Takahashi M: "Tumor necrosis factor-a mediates endotoxin induced suppression of gonadotropin-releasing hormone pulse generator activity in the rat." Endocrine J. 44. 141-148 ((1997))

    • Related Report
      1996 Annual Research Report
  • [Publications] Maeda K-I and Tsukamura H: "Neuroendocrine mechanism mediating fasting-induced suppression of luteinizing hormone secretion in female rats." Acta Neurobiologiae Experimentalis. 56. 787-796. ((1996))

    • Related Report
      1996 Annual Research Report
  • [Publications] Oka Y.: "Tetrdotoxin-resistant Na+current underlying pacemaker potentials of fish gonadotrophin-releasing hormone neurones." J.Physiol.482. 1-6. (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yamamoto N. Oka Y. Amano M. Aida K. Hasegawa Y, Kawashima S.: "Multiple gonadotropin-reeleasing hormone (GnRH) immunoreactive systems in the brain of the dwarf gourami, Colisa lalia: immunohistochemistry and redioimmunoassay." J.Comp. Neurol.355. 354-368 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Kim MH, Oka Y, Amano M, Kobayashi M, Okuzawa K, Hasegawa Y, Kawashima S, Suzuki Y, Aida K.: "Immunocytochemical localozation of sGnRH and cGnRH-II in the brain of goldfish, Carassius auratus." J. Comp. Neurol.,. 356. 72-82 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Kim MH, Kobayashi M, Aida K.: "Changes in brain GnRH after olfactory tract section in female goldfish." Fish. Sci.,. 61. 614-617 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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