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EFFECTS OF VOLATILE ANESTHETICS ON THE EXTRANEURONAL ACCUMULATION OF CATECHOLAMINE IN PERFUSED RAT HEART.

Research Project

Project/Area Number 62570701
Research Category

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

Allocation TypeSingle-year Grants
Research Field 麻酔学
Research InstitutionKyoto University

Principal Investigator

MAGARIBUCHI Tatsuo  INSTRUCTOR, FACULTY OF MEDICINE, KYOTO UNIVERSITY, 医学部, 助手 (60190328)

Co-Investigator(Kenkyū-buntansha) MORI Kenjiro  PROFESSOR, FACULTY OF MEDICINE, KYOTO UNIVERSITY, 医学部, 教授 (20025620)
Project Period (FY) 1987 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1988: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1987: ¥1,000,000 (Direct Cost: ¥1,000,000)
KeywordsVolatile anesthetics / Halothane / Ether / Isoproterenol / Arrythmia / Extraneuronal accumulation / エンフルレン / 不整脈
Research Abstract

It has been well known that halothane induces arrythmia especially in the patient being administered catecholamines. The aim of this study was to clarify the mechanism of halothaneinduced arrythmia in the presence of catecholamines.
Experiments were carried out in isolated perfused rat hearts. After heart rate was stabilized, halothane (2 MAC) or ether (2 MAC) was added to the bubbling gas containing 95% O_2 and 5% CO_2. 15 min later, isoproterenol (0.1 M) and tropolone (0.1mM) was added to the perfusion medium for 30 min. Electrocardiogram was monitored throughout the experiments.
The accumulation of isoproterenol in the heart during halothane bubbling was significantly higher than that without any anesthetics. However, ether did not show any increase nor decrease in the accumulation of isoproterenol in the heart. Arrythmia was observed in every case with halothane group after the addition of isoproterenol but not with ether group. These results show that halothane increases in the extraneuronal accumulation of isoproterenol in perfused rat heart and induces arrythmia in the pressence of catecholamines in perfused rat heart. This suggests that the possibility that halothane-induced arrythmia may be caused by the extraneuronally accumulated catecholamines.

Report

(3 results)
  • 1988 Annual Research Report   Final Research Report Summary
  • 1987 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Magaribuchi,T.: Naunyn-Schmiedeberg's Archives of Pharmacology. 335. 123-128 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Magaribuchi,T.: Life Sciences. 42. 753-757 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Magaribuchi,T.: Naunyn-Schiniedeberg's Archives of Pharmacology. 337. 531-538 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Magaribuchi,T.: Anesthediology.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] MAGARIBUCHI T: "EFFECTS OF EXTRANEURONAL UPTAKE INHIBITORS ON THE POSITIVE CHRONOTROPIC RESPONSE TO ISOPRENALINE AND ON THE ACCUMULATION OF ISOPRENALINE IN PERFUSED RAT HEART AFTER INHIBITION OF CATECHOL-O-METHYL TRANSFERASE." NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY. 335. 123-128 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] MAGARIBUCHI T: "EXTRANEURONAL ACCUMULATION OF ISOPROTERENOL IN ATRIA AND VENTRICLE OF PERFUSED RAT HEART." LIFE SCIENCES. 42. 753-757 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] MAGARIBUCHI T: "POSSIBLE ACTIVATION OF INTRACELLULAR -ADRENOCEPTORS BY EXTRANEURONALLY ACCUMULATED ISOPRENALINE IN PERFUSED RAT HEART." NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY. 337. 531-538 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] MAGARIBUCHI T: "EFFECTS OF HALOTHANE AND ETHER ON THE EXTRANEURONAL ACCUMULATION OF ISOPRENALINE IN PERFUSED RAT HEART." ANESTHESIOLOGY.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Magaribuchi,T.: Naunyu-Schmiedeberg's Archives of Pharmacology. 337. 531-538 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Magaribuchi,T.: Anesthesiology.

    • Related Report
      1988 Annual Research Report
  • [Publications] Magaribuchi, T: Life Sciences. 42. 753-757 (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] Magaribuchi, T: Naunyn-Schmiedeberg's Archives of Pharmacology.

    • Related Report
      1987 Annual Research Report

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Published: 1987-04-01   Modified: 2016-04-21  

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