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PREDICTION OF DRUG-INDUCED CATALEPSY BASED ON DOPAMINE D1, D2, AND MUSCARINIC ACETYLCHOLINE RECEPTOR OCCUPANCIES

Research Project

Project/Area Number 11470510
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 応用薬理学・医療系薬学
Research InstitutionThe University of Tokyo

Principal Investigator

IGA Tatsuji  Faculty of Mecicin, The University of Tokyo, Professor, 医学部・附属病院, 教授 (60012663)

Co-Investigator(Kenkyū-buntansha) 大橋 聖子  東京大学, 医学部・附属病院, 助手 (10292939)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥8,300,000 (Direct Cost: ¥8,300,000)
Fiscal Year 2001: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2000: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1999: ¥6,500,000 (Direct Cost: ¥6,500,000)
KeywordsPREDICTION OF DRUG-EFFECT / DYNAMIC MODEL / RECEPTOR OCCUPANCIES / PARKINSONISM / DOPAMINE RECEPTOR / MUSCARINIC RECEPTOR / PHARMACODYNAMIC / CATALEPSY / 薬剤性パーキンソニズム / P-糖タンパク質 / シクロスポリン / ドンペリドン / L-dopa / パーキンソン病モデルラット / PK / PDモデル
Research Abstract

In this study, the relationship between in vivo dopamine Dl and D2 receptor occupancies and catalepsy was investigated to predict the intensity of catalepsy induced by drugs which bound to Dl and D2 receptors nonselectively. Intensities of catalepsy predicted by using this pharmacodynamic model considering the interaction between Dl and D2 receptors overestimated the observed values, suggesting that these drugs had catalepsy-reducing properties as well. Since muscarinic acetylcholine (mACh) receptor antagonists inhibited the induction of catalepsy, the anticholinergic activities of the drugs were investigated. Relationship between mACh receptor occupancy and change in catalepsy was used as the measure of catalepsy-reducing effects of the drugs.
After coadministration of domperidone and cyclosporin A, intensity of catalepsy was stronger than that predicted after administration of each drug. It is suggested that changes in permeability of the blood-brain barrier (BBB) to domperidone following exposure to cyclosporin A.
In conclusion, the pharmacodynamic model considering Dl , D2, and mACh receptor occupancies and synergism between Dl and D2 receptors may be useful for quantitative prediction of drug-induced catalepsy.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] Yamada Y, Matsuyama K, Iga T, et al.: "Kietic analysis of therapeutic dose of β-blockers for angina pectoris based on receptor occupancy theory"Yakugaku Zasshi. 119(7). 495-501 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yamada Y, Takayanagi R, Iga T, et al.: "Assessment of systemic adverse reactions induced by ophthalmic β-adrenergic receptor antagonists"J. Ocul. Pharmacol. Ther.. 17(3). 235-248 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] YamadaY, Matsuyama K, IgaT, et al.: "Kietic analysis of β-blockers for angina pectoris based onreceptor occupancy theory"Yakugaku Zasshi. 119(7). 495-501 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yamada Y, Takayanagi R, Iga T, et al.: "Assessment of systemic adverse reactions induced by ophthalmic β-adrenergic receptor antagonists"J. Ocul. Pharmacol. Ther.. 12(3). 235-248 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yamada Y, Matsuyama K, Iga T, et al.: "Kietic analysis of therapeutic dose of β-blockers for angina pectoris based onreceptor occupancy theory"Yakugaku Zasshi. 119(7). 495-501 (1999)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yamada Y, Takayanagi R, Iga T, et al.: "Assessment of systemic adverse reactions induced by ophthalmic β-adrenergic receptor antagonists"J. Ocul. Pharmacol. Ther.. 17(3). 235-248 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yamada Y,Matsuyama K,Iga T et al.: "Kinetic analysis of β-blockers for angina pectoris based on receptor occupancy theory"Yakugaku.Zasshi. 119・7. 495-501 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] Yamada Y,Takayanagi R,Iga T, et al: "Assessment of Systemic adverse reactions induced by ophthalmic β-adrenergic receptor antagonists"J,Ocul.Pharmacol.Ther,. (in press). (2001)

    • Related Report
      2000 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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