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Neuronal Degeneration Induced Physical Stress

Research Project

Project/Area Number 05680084
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 体育学
Research InstitutionNagoya Institute of Technology

Principal Investigator

FUJITSUKA Noriaki  Nagoya Institute of Technology, Department of Engineering, Professor, 工学部, 教授 (60101268)

Co-Investigator(Kenkyū-buntansha) KAWAKAMI Keisuke  Nagoya University, Collage of Medical Technology, Assistant, 医療技術短期大学部, 助手 (60195047)
MURAKAMI Taro  Nagoya Institute of Technology, Department of Engineering, Assistant, 工学部, 助手 (10252305)
YOSHIMURA Atsushi  Nagoya Institute of Technology, Department of Engineering, Assistant Professor, 工学部, 助教授 (70159234)
Project Period (FY) 1993 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1995: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1994: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1993: ¥600,000 (Direct Cost: ¥600,000)
Keywordsneuro-degeneration / rat hippocampus / swim training / spatial cognitive test / 神経細胞変性 / 細胞内Ca^<2+> / エネル-分散型X線分析 / トレーニング / 低酸素 / 低グルコース / マイクロダイアリシス / X線解析 / ラット海馬 / 持久的水泳運動
Research Abstract

To study the effects of physical stress on the rat brain, four experiments were took-place in adults female and male rats. The title of them were as follows ; 1.Degeneration of rat hippocampal neurons in response to swim training, 2.Difference between left and right hemispheres of rat hippocampus in relation to exercise-induced neuro-degeneration, 3.Leaming and memory abilities of rats subjected to endurance swim training for 6 weeks, and 4. Energy dispersive X-ray analysis of Intracellular Ca^<2+> in the rat hippocampal CA3 subfield after endurance swim.
These experiments revealed that the exercise stress such as endurance swimming induced the serious neuronal damages and functional deterioration. In detail, Numerous dark neurons histochemically stained were found in the subiculum, CA3 subfield and dentate gyrus of rat hippoampus subjected to 2-3 h swim training for 6-12 weeks. The cell density was significantly decreased in the CA3 and subiculum after 12-week training. The profiles of darkly stained neurons were extremely similar to the ischemic and/or hypoglycemic neuro-degenerations previously reported. Also, the intensely degenerated neurons were observed in the amygdaroid, parietal cortex area 1, and piriform cortex of rat brain after 12-week swim training. In the hipocampus, the degenerated neurons induced by swim training were frequently found in the right rather than in the left hemisphere. Furthermore, Energy dispersive X-ray analysis confirmed that a bout of 2-h swimming increased the extracellular Ca^<2+> concentration of CA3 pyramidal neurons. Subjected to a spatial cognitive test, the learning ability of rats with exercise induced neuro-degeneration mentioned above was inferior to that of normal ones.

Report

(4 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • 1993 Annual Research Report
  • Research Products

    (28 results)

All Other

All Publications (28 results)

  • [Publications] Murakami, T.: "Exercise induced degeneration of hippocampus neurons in rats." Abstract in XXXII Congress International Union of Physiological Science. Wed.215- (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujitsuka, N.: "Extracellular Po_2 and glucose in the hippocampal region during endurance exercise." Abstract in the 1st Congress of High Altitude Medicine and Physiology. 123- (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 石黒 寛: "水泳運動負荷後のラット海馬アンモン角CA3野錐体細胞内Ca^<2+>のX線解析" 名古屋工業大学紀要. 46. 265-270 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujitsuka, N.: "Degeneration of rat hippocampal neurons in response to swim training." The Japanese Journal of Physiology. 44. S290- (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujitsuka, N.: "Enhancement of c-fos gene expression in the rat hippocampal neurons stimulated by an acute endurance running." Neuroscience Research,. 20. S95- (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujitsuka, N.: "Argyrophilic neuronal damage in the rat forebrain followed by swin training." The Japanese Journal of Physiplogy. 46. S211- (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 藤墳 規明: "最新運動生理学" 直興交易医書出版、東京, 404 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Murakami, T.: "Exercise induced degeneration of hippocanpus neurons in rats." Abstract in XXXII Congress International Science, Wed.215 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujitsuka, N.: "Extracellullar Po_2 and glucose in the hippocampal region during endurance exercise." Abstract in the 1st Congress High Altitude Medicine and Physiology. 123 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ishiguro, H.: "Energy dispersive X-ray analysis of intracellular Ca^<2+> in the rat hippocampal CA3 region after endurance exercise." Bulletin of Nagoya Institute of Technology. 46. 265-270 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujitsuka, N.: "Degeneration of rat hippocampal neurons in response to swim training." The Japanese Journal of physiology. Vol.44, suppl.1. S290 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujitsuka, N.: "The changes in extracellular oxygen pressure and glucose and intracellular calcium ions in the hippocampal region induced by endurance exercise." The japanese Journal of Physiology. Vol.45, Suppl.1. S255 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujitsuka, N.: "Enhancement of c-fos gene expression in the rat hippocampal neurons stimulated by an acute endurance running." Neuroscience Research. Suppl.20. S95 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujitsuka, N.: "Argyrophilic neuronal damage in the rat forebrain followed by swim training" The Japanese Journal of Physiology. Vol.46. S211 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Fujitsuka, N.: Influences of physical exercise on the learning and memory. In The Current Exercise Physiology, edited by M.Miyamura. Publisher of Shinkou Koueki, Tokyo., 97-101 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 村上太郎: "持久的運動刺激によるラット海馬体でのc-fos遺伝子発現の増大" 第73回日本生理学会大会予稿集. 52- (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 藤墳規明: "持久的水泳トレーニングによる脳神経細胞の変性とその出現部位" 第73回日本生理学会大会予稿集. 101- (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 吉村篤司: "運動強度の違いがラット海馬体領域の酸素分圧に及ぼす影響" 第73回日本生理学会大会予稿集. 101- (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Fujitsuka,N.: "Extracellular Po_2 and glucose in the hippocampal region during endurance exercise" Abstract of 1st World Congress of High Altitude Medicine and Physsiology. 123- (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] 石黒 寛: "水泳運動負荷後のラット海馬アンモン角CA3錘体細胞内Ca^<2+>のX線分析" 名古屋工業大学紀要. 46. 265-270 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] 宮村実晴: "最新運動生理学" 真興交易(株)医書出版, 320 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Fujitsuka,N.: "Recruitment patterns of mouse intrafusal fibers during prolonged swimming" Alpha and Gamma Motor Systems. 1. - (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] Banks,R.: "The sensory and motor innervation of the abductor digiti medius muscle of the cat." Alpha and Camma Motor Systems. 1. - (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] Fujitsuka,N.: "Extracellular P02 and glucose in the hippocampal region during endurance exercise." Abtract of Ist World Congress of High Altitude Medicine and Physiology. 123- (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 石黒,寛: "水泳運動負荷後のラット海馬アンモン角CA3錐体細胞内C_aのX線分析" 名古屋工業大学紀要. 46. 265-270 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Murakami,T.: "Enzymatic and genetic adaptation of soleus muscle mitochondria to physical training" American Journal Physiology. (未). - (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] Murakami,T.: "Differenct adaptation to endurance training between heart and gastrocnemius muscle mitochondria in rats." Bioch.Molec.Biol.Internat.30. 388-392 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] MURAKAMI,T.: "Exercise-induced degeneration of hippocampal neurons in rats." Abst.of‘32th Cong.of Internat.Union of Physiol.Sci.215 (1993)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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