• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Effect of long-term treatment with antihypertensive drugs on periarterial nerve function

Research Project

Project/Area Number 09672326
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 応用薬理学・医療系薬学
Research InstitutionOKAYAMA UNIVERSITY

Principal Investigator

KAWASAKI Hiromu  Okayama University Faculty of Pharmaceutical Science Professor, 薬学部, 教授 (60125151)

Co-Investigator(Kenkyū-buntansha) GOMITA Yutaka  Okayama University Hospital Pharmacy Professor, 医学部附属病院, 教授 (00088709)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 1998: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1997: ¥3,000,000 (Direct Cost: ¥3,000,000)
KeywordsANTIHYPERTENSIVE DRUGS / LONG-TERM TREATMENT / PERIARTERIAL NERVE FUNCTION / SPONTANEOUSLY HYPERTENSIVE RATS / CALCITONIN GENE-RELATED PEPTIDE / MESENTERIC RESISTANCE ARTERY / VASCULAR ENDOTHELIUM / 交感神経 / 抵抗血管
Research Abstract

We have previously demonstrated innervation of calcitonin gene-related peptide (CGRP) containing vasodilator nerves (CGRP nerves) in the rat mesenteric artery and age-related decrease in CGRP nerve function in spontaneously hypertensive rats (SHR). The present study investigated the effects of long-term treatment with various antihypertensive drugs including angiotensin converting enzyme (ACE) inhibitors (captopril, temocapril), angiotensin 11 receptor (AT1-R) (TCV-116) antagonist, calcium (Ca) antagonist (amlodipine, nicardipine) , hydralazine on periarterial nerve function (adrenergic and CGRP nerves) in mesenteric resistance blood vessels of SHR.8-week old SHR were treated for 7 weeks with 0.1% captopril, 0.01% temocapril, 0.005% TCV-116, 0.01% amlodipine, 0.1% nicardipine or 0.005% hydralazine in drinking water. Isolated mesenteric vascular beds were perfused and perfusion pressure measured. In the preparation with resting tension, periarterial nerve stimulation (PNS ; 4, 8, 12 Hz) … More caused vasoconstriction induced by adrenergic stimulation. In precontracted preparations, PNS (0.5 to 8 Hz) produced frequency-dependent vasodilations, which were abolished by CGRP receptor antagonist (CGRP8-37) and significantly smaller in SHR than in normotensive Wistar Kyoto rats (WKY). In SHR CGRPmRNA level was significantly smaller than in WKY.Long-term treatment of SHR with each antihypertensive drug lowered systemic blood pressure. The treatment with captopril, temocapril, TCV-116, amlodipine but not with hydralazine resulted in significantly smaller PNS-induced vasoconstriction, and ACE inhibitor and TCV-l 16 treatment caused greater PNS-induced vasodilation than in non-treated SHR.However, direct perfusion of ACE inhibitors and AT1-R antagonist did not affect the PNS-induced vasoconstrictor and vasodilation. In ACE inhibitor-treated SHR preparations, PNS evoked significantly larger CGRP-like immunoreactive release than in non-treated SHR.The Ca antagonist, amlodipine inhibited the PNS-induced noradrenaline release but nicardipine increased the release. These results suggest that ACE inhibitors and AT1-R antagonist prevent or reverse CGRP nerve function reduction in SHR.The Ca antagonist inhibit adrenergic nerve function without affecting CGRP nerve function in SHR. Less

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] H.Kawasaki 他4名: "Angiotensin inhibits neurotransmission of CGRP-containiy vasodilator nerves in mesenteric artery of SHR" J.Pharmacol.Exp.Ther.284. 508-515 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Kawasaki 他5名: "Long-term treatment with anjiotensin convertry enzyme inhibitor restores reduced CGRP-Containing vasodilatcer nerve function in SHR" Jpn.J.Pharmacol.79. 221-229 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takenaga, M, Kawasaki, H.: "Endogenous CGRP suppresses vaso constriction mediated of adoneys nerves in rat mesenteric resistance blood vessels" Eur.J.Pharmacol.367. 239-245 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Saijo Y. Kawasaki, H 他2名: "Effect of windrawing after long-term treatment with ACE inhibitor on periarterial nerve function of resistance blood vessels in SHR" Jpn.J.Clin.Pharmacol.Ther.30(1). 121-122 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Nakatuma A, Kawasaki H.: "Effect of long-term treatment with calcium antagonist on periarterial nerve function of resistance blood vessels in SHR" Jpn.J.Clin.Pharmacol.Ther.30(1). 125-126 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kawasaki H,Takenaga M,Araki H,Futagami K,Gomita Y.: "Angiotensin inhibits neurotransmission of calcitonin gene-related peptide-containing vasodilator nerves in mesenteric artery of spontaneously hypertensive rats." J Pharmacol Exp Ther. 284. 508-515 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kawasaki H,Okazaki M,Nakatsuma A,Mimaki Y,Araki H,Gomita Y.: "Long-termtreatment with angiotensin converting enzyme inhibitor restores reduced calcitonin gene-related peptide-containing vasodilator nerve function in mesenteric artery of spontaneously hypertensive rats." Jpn J Pharmacol. 79. 221-229 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takenaga M,Kawasaki H.: "Endogenous calcitonin gene-related peptide suppresses vasconstriction mediated by adrenergic nerves in rat mesenteric resistance blood vessels." Eur J Pharmacol. 367. 239-245 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Saijyo Y,Kawasaki H,Takahasi T,Kurosaki Y.: "Effect of withdrawing after long-term treatment with angiotensin convertingenzymeinhibitors on periarterial nerve function of resistance blood vessel in SHR" Jpn J Clin Pharmacol Ther. 30 (1). 121-122 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Nakatsuma A,Kawasaki H,Araki H,Okazaki M,Mimaki Y,Kurosaki Y,Gomita Y.: "Effect of long-term treatment with calcium antagonist on periarterial nerve function of resistance blood vessels in SHR" Jpn J Clin Pharmacol Ther. 30 (1). 125-126 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Hiromu Kawasaki 他 4名: "Angiotensin inhidits neurotransmission of calcitonine gene-related peptidecontaing vasodilator newes in mesenteic artery of sponta reously hypertendive rats" Journal of Pharmacology and Experimental Therapeutics. 284. 508-515 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Hiromu Kawasaki 他 5名: "Long-term treatment with angiotensin convertiny engyme inhibitor restores reduced calatonin gene-related peptide-containg vascdilator fuuction in" Japanese Journal of Pharmacology. 印刷中. (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Makoto Takenaga & H. Kawasaki: "Endogenous colatonin gene-related peptide suppresses vasoconstriction mediated by adreneyic nerves in rat mesenteic resistance blood resselo" European Journal of Pharmacology. 印刷中. (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 西条芳恵、川崎博巳 他 2名: "SHRの抵抗血管周囲神経機能に対するアンジオテンシン(A)変換酵素(ACE)阻害薬長期投与の影響と休薬による変化" 臨床薬理. 30(1). 121-122 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 中妻章、川崎博巳 他5名: "SHRの抵抗血管周囲神経機能に及ぼすカルシウム抵抗薬長期投与の影響" 臨床薬理. 30(1). 125-126 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Hiromu Kawasaki: "Angiotensin inhibits neurotransmission of calcitorin gene-related peptide-containing vasodilator nerues in mesenteric artery of SHR" Journal of Dharmacology and Experimental Therapeutics. (印刷中). (1998)

    • Related Report
      1997 Annual Research Report

URL: 

Published: 1997-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi