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2005 Fiscal Year Final Research Report Summary

Mechanism of Dilatory Action of Volatile Anesthetics on Hyperreactive Airway in Chronic Obstructive Pulmonary Disease Model

Research Project

Project/Area Number 15591648
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Anesthesiology/Resuscitation studies
Research InstitutionSapporo Medical University

Principal Investigator

YAMAKAGE Michiaki  Sapporo Medical University, School of Medicine, Assistance Professor, 医学部, 講師 (70285005)

Project Period (FY) 2003 – 2005
KeywordsSmoking / Guinea Pig / Airway Resistance / Asthma / Ovalbamin
Research Abstract

Background : Little is known about the inhibitory effects of volatile anesthetics on various hyperreactive airway models and the different effects of volatile anesthetics on airway tone. Methods : The effects of sevoflurane (0〜2.0 MAC), the most widely used volatile anesthetic, on hyperreactive airways in ovalbumin-sensitized and chronic cigarette-smoking guinea pigs were investigated by measuring 1)total lung resistance (R_L), 2)muscle tension and intracellular concentration of free Ca^<2+> ([Ca^<2+>]_i) using tracheal ring preparations, 3)voltage-dependent Ca^<2+> channel (VDCC) activity of tracheal smooth muscle cells, and 4)cyclic AMP levels in tracheal smooth muscles. Results : Ovalbumin and muscarinic airway hyperreactivity was seen in ovalbumin-sensitized animals (acute asthmatic model). Muscarinic hyperreactivity and enlarged alveolar ducts/alveoli were observed in chronic cigarette-smoke animals [a chronic obstructive pulmonary disease (COPD), emphysema, model]. Although sevoflurane inhibited the acetylcholine-induced increase in R_L in the control and asthmatic models, the COPD model showed resistance to sevoflurane. Similarly, in the COPD model, carbachol-induced muscle contraction and increased [Ca^<2+>]_i showed resistance to sevoflurane. Sevoflurane had a smaller inhibitory effect on VDCC activity in the COPD group than in the other two groups. The sevoflurane-induced increase in cyclic AMP that was seen in the control and acute-asthmatic groups was significantly suppressed in the COPD group, resulting in an increase in [Ca^<2+>]_i. Conclusions : The COPD model showed resistance to the effects of sevoflurane. The in vitro mechanism of this resistance seemed to be, at least in part, due to the remodeled airway in which sevoflurane-induced cyclic AMP production was suppressed.

  • Research Products

    (16 results)

All 2006 2005 2004 2003 Other

All Journal Article (15 results) Book (1 results)

  • [Journal Article] 吸入麻酔薬セボフルランの呼吸器に及ぼす影響2006

    • Author(s)
      山蔭 道明
    • Journal Title

      臨床麻酔 30・2

      Pages: 163-179

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 麻酔薬と気道過敏症2005

    • Author(s)
      山蔭 道明
    • Journal Title

      Aneschesia 21 Century 7・2

      Pages: 18-26

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 吸入麻酔薬の作用機序に関する最近の知見2005

    • Author(s)
      山蔭 道明
    • Journal Title

      臨床麻酔 29・8

      Pages: 1353-1356

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] ラット心筋よりクローニングされたβ_<2c>サブユニットを用いて再構築されたL型Ca^<2+>チャネルの単一チャネル活動2004

    • Author(s)
      山蔭 道明
    • Journal Title

      臨床薬理の進歩 25

      Pages: 143-151

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Single-channel activity of L-type Ca^<2+> channel reconstituted with the beta_<2C> subunit cloned from the rat heart2004

    • Author(s)
      Kamada Y
    • Journal Title

      Eur J Pharmacol 487(1-3)

      Pages: 37-45

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] The type of carbon dioxide absorbents has no relation to the concentration of carbon monoxide in the breathing circuit during low-flow isoflurane anaesthesia either in smoking or non-smoking subjects2004

    • Author(s)
      Yamakage M
    • Journal Title

      Anaesth Intensive Care 32(2)

      Pages: 230-235

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Effects of oral atenolol on volatile anesthetic induction with sevoflurane in adults2004

    • Author(s)
      Yamakage M
    • Journal Title

      J Anesth 18(2)

      Pages: 185-189

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Inhibitory effects of the anesthetics propofol and sevoflurane on spontaneous lymphatic vessel activity in rats2004

    • Author(s)
      Hattori J-I
    • Journal Title

      Anesthesiology 101(1)

      Pages: 687-694

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 肺気腫患者の麻酔2003

    • Author(s)
      山蔭 道明
    • Journal Title

      LiSA 10・3

      Pages: 216-220

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Cellular mechanisms of airway smooth muscle relaxant effects of anesthetic agents2003

    • Author(s)
      Yamakage M
    • Journal Title

      J Anesth 17(4)

      Pages: 251-258

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Repeated or prolonged isoflurane exposure reduces mitochondrial oxidizing effects2003

    • Author(s)
      Kohro S
    • Journal Title

      Anesthesiology 98(1)

      Pages: 275-278

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Comparative study of the efficiency of four kinds of oxygen delivery system2003

    • Author(s)
      Sasaki H
    • Journal Title

      Can J Anesth 50(10)

      Pages: 1052-1055

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Different inhibitory effects of the volatile anesthetic sevoflurane on airway smooth muscle contractility in acute asthmatic and chronic obstructive pulmonary disease models.

    • Author(s)
      Iwasaki S
    • Journal Title

      Anesthesiology (in press)(accepted pending major revision)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Effects of the Chinese herbal medicines Bupleuri radix, Ginseng radix, and Zingiberis rhizoma on lymphatic vessel activity in rats

    • Author(s)
      Yamakage M
    • Journal Title

      Am J Chinese Med (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Preferable inotropic action of procaterol, a potent bronchodilator, on impaired diaphragmatic contractility in an intra-abdominal septic model.

    • Author(s)
      Uzuki M
    • Journal Title

      J Anesth (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 今日から実践できるVIMA2003

    • Author(s)
      山蔭道明
    • Total Pages
      162
    • Publisher
      真興交易株式会社医書出版部
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2007-12-13  

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