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CEREBRAL DAMAGE ON EXPERIMENTAL BRAINISCHEMIA SEQUENTIAL CHANGE OF CELLULAR REACTION

Research Project

Project/Area Number 04454354
Research Category

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

Allocation TypeSingle-year Grants
Research Field Cerebral neurosurgery
Research InstitutionHIROSAKI UNIVERSITY

Principal Investigator

KOYA Goyo (1993)  HIROSAKI UNIVERSITY SCHOOL OF MEDICINE PROFESSOR, 医学部, 教授 (20091605)

吉田 泰二 (1992)  弘前大学, 医学部, 助教授 (70126465)

Co-Investigator(Kenkyū-buntansha) YOSHIDA Yasuji  HIROSAKI UNIVERSITY SCHOOL OF MEDICINE ASSOCIATE PROFESSOR, 医学部, 助教授 (70126465)
MORI Fumiaki  HIROSAKI UNIVERSITY SCHOOL OF MEDICINE RESEARCH ASSOCIATE, 医学部, 助手 (60200383)
高屋 豪塋  弘前大学, 医学部, 教授 (20091605)
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥6,300,000 (Direct Cost: ¥6,300,000)
Fiscal Year 1993: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1992: ¥4,500,000 (Direct Cost: ¥4,500,000)
KeywordsISCHEMIA / GLOBAL AND FOCAL / NO OPENED CRANIUM ON OPERATION / PENUMBRA / SAPINAL ROOT GANGLIA / HEMORRHAGE / SPINAL CORD / PARAPLEGIA / 脳梗塞 / 脊髄後根神経節出血 / 実験動物 / 性 / 年齢 / 麻酔 / 血圧 / 種 / 年令
Research Abstract

Focal brain ischemia induced in rats by occulsion of an intracranial artery is a widewly used paradigm of human brain infarct. Details of the structural changes that develop in either the human or the rat brain at various times after occulsion of an intracranial artery are incompletely characterized. We are studied, in adult rat on inherited controlled for various kind of Wistar- and SHR.SR or SHR.SP and SD rats, structureal alterations involving the cerebral hemisphere ipsilateral to an arterial occulsion, at intervals ranging from 30 min to 7 days. The gross pattern of the brain lesion and the maturation of neu ronal changes typical of a brain infarct have a predictable progression. Focal brain ischemia of up to 6-hour duration does not induce coagulation necrosis.
The photosensitizing agent, such as Photofrin II, cause necrosis of cells(neoplastic as wellas normal), probably by promoting formation of free radical species, on photoactivation, We completed a time-dependent study of the effects that photoactivatig Photofrin II may have on normal rat brain and reported early injury to astrocytes and secondarily, to the microvasculature and the neurons.
Among of the short-term on postoperation of cerebral infarct subtle hemohrrage localized in spinal root ganglion have been involed at level of lummbal and cervical. The ganglia hemohrrage caused by incresed CSF pressure induced after series of increased cranial pressure and after with that few case was involing focal hemohrrge of characteristic in spinal cord itself. Any information of spinal enviromentalinvolved at the time may be clinically given a soluble process for syringomyelia.

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] Garcia J H.: "Progression from ischemic injury to infarct following middle-cerebral-artery occulsion in the rat." Am J Pathol. 142. 623-635 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Mori F.: "Neuronal degeneration in the high-frequency band of the inferior colliculus in rats in experimental thiophene poisoning." J.Toxicol Pathol. 6. 213-222. (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Mori F.: "Difference in susceptivity to experimental thiophene poisoning between spontaneouslu hypertensive and Wistar-Kyoto Rats." J.Toxicol Pathol. 6. 223-232. (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Garcia J H,Yosida Y,Chen H,Li Y,Zang ZG,Lian J,Chen S,Chopp M: "Progression from ischemic injury to infarct following middle-cerebral-artery occulsion in the rat." Am J Pathol. 142. 623-635 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Mori F.Koya G.Yosida Y.Nakamura K.: "Neuronal degeneration in the high-frequency band of the inferior colliculus in rats in experimental thiophene poisoning." J.Toxicol Pathol. 6. 213-222 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Mori F.Koya G.Yosida Y.: "Difference in susceptivity to experimental thiophene poisoning between spontaneouslu hypertensive and Wistar-KyotoRats." J.Toxicol Pathol. 6. 223-232 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Garcia JH Yosida Y,Li CHY: "Progression from ischemic injury to infarct following middle-cerebral-artery occlusion in the rat." Am J Pathol. 142. 623-635 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 森文秋: "実験的チオフェン中毒ラッの易揖性-SHRとWKYの比較-" J Toxicol Pathol. 6. 223-232 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 森文秋: "実験的チオフェン中毒ラットにおける下丘高周波領域の変性病変" J Toxicol Pathol. 6. 213-222 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 森 文秋、高屋 豪塋、吉田 泰二、玉山 公基、西岡 孝浩: "チオフェンによって惹起されたラット小脳血管障害" J Toxicol Pathol. 5. 21-28 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 森 文秋、高屋 豪塋、吉田 泰二、玉山 公基: "高令SHRにチオフェン投与を行った後、小脳顆粒細胞層血管内に出現したオスミウム好性均一物質" J Toxicol Pathol. 5. 167-177 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 森 文秋、高屋 豪塋、吉田 泰二、玉山 公基: "チオフェン中毒急性期ラットの聴性脳幹反応(ABR)異常と下丘PAS変化" J Toxicol Pathol. 5. 179-187 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Yoshida Y,DereskiMO GayciaJH etal: "Photoaetivated photofrin 2;Astrocytic swelling procedes endo thelial in jury in rat brain" J Neuropathol Exp Neurol. 51. 91-100 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Yoshida Y,DereskiMO GayciaJH etal: "Neuronal injury after photoactivation of photofrin 2" Am J Pathol. 141. 989-997 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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