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New Therapeutic Method for Hot Flushes in Menopausal Women

Research Project

Project/Area Number 15590475
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied pharmacology
Research InstitutionFukuoka University

Principal Investigator

KAI Mamiko  Fukuoka University, Faculty of Pharmaceutical Sciences, Assistant Professor, 薬学部, 助手 (50289550)

Co-Investigator(Kenkyū-buntansha) KATAOKA Yasufumi  Fukuoka University, Faculty of Pharmaceutical Sciences, Professor, 薬学部, 教授 (70136513)
KAI Hisashi  Kurume University, School of Medicine, Associate Professor, 医学部, 助教授 (60281531)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2004: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2003: ¥1,500,000 (Direct Cost: ¥1,500,000)
KeywordsCa^<2+> channel antagonist / nifedipine / ovariectomy / hot flushes / menopause / tail skin temperature / soybean isoflavones / estradiol replacement
Research Abstract

Hot flushes are the most frequent symptoms in menopausal women. Flushing, vasodilation-related adverse effect associated with Ca^<2+> channel antagonist treatment, occurs more frequently in women than men. We investigated effect of ovariectomy on nifedipine-induced flushing in mice. Ovariectomy markedly increased the tail skin temperature, a parameter of skin flushing, induced by nifedipine at a dose showing no influence on blood pressure. This event was blocked by estradiol replacement. Estrogen withdrawal is, therefore, included in the risk factors for nifedipine-induced flushing and this risk is lessened by estrogen replacement.
Next, we investigated effect of soybean isoflavones (Soyaflavone HG) on nifedipine-induced flushing in ovariectomized mice. Ovariectomy markedly aggravated nifedipine-induced increase in tail skin temperature. Soyaflavone HG (10 mg/kg, p.o., once a day for 5 days) inhibited nifedipine-induced flushing in ovariectomized mice. The inhibitory effect of Soyaflavone HG was significantly reversed by an estrogen-receptor antagonist, ICI 182,780, suggesting that Soyaflavone HG prevents nifedipine-induced flushing partially through estrogen receptors. We presented the experimental evidence suggesting that soybean isoflavones including Soyaflavone HG have the benefits for menopausal hot flushes.

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (6 results)

All 2004 2003 Other

All Journal Article (5 results) Publications (1 results)

  • [Journal Article] Soybean isoflavones eliminate nifedipine-induced flushing of tail skin in ovariectomized mice.2004

    • Author(s)
      M.Kai, A.Yamauchi, K.Tominaga, A.Koga, H.Kai, Y.Kataoka
    • Journal Title

      Journal of Pharmacological Sciences 95

      Pages: 476-478

    • NAID

      10014165988

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Soybean isoflavones eliminate nifedipine-induced flushing of tail skin in ovariectomized mice2004

    • Author(s)
      Mamiko Kai, Atsushi Yamauchi, Koji Tominaga, Ayako Koga, Hisashi Kai, Yasufumi Kataoka
    • Journal Title

      Journal of Pharmacological Sciences 95

      Pages: 476-478

    • NAID

      10014165988

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Soybean isoflavones eliminate nifedipine-induced flushing of tail skin in ovariectomized mice.2004

    • Author(s)
      M.Kai, A.Yamauchi, K.Tominaga, A.Koga, H.Kai.Y.Kataoka
    • Journal Title

      Journal of Pharmacological Sciences 95

      Pages: 476-478

    • NAID

      10014165988

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Ovariectomy aggravates nifedipine-induced flushing of tail skin in mice.2003

    • Author(s)
      M.Kai, K.Tominaga, K.Okimoto, A.Yamauchi, H.Kai, Y.Kataoka
    • Journal Title

      European Journal of Pharmacology 481

      Pages: 79-82

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Ovariectomy aggravates nifedipine-induced flushing of tail skin in mice2003

    • Author(s)
      Mamiko Kai, Koji Tominaga, Kisaragi Okimoto, Atsushi Yamauchi, Hisashi Kai, Yasufumi Kataoka
    • Journal Title

      European Journal of Pharmacology 481

      Pages: 79-82

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] M.Kai, K.Tominaga, K.Okimoto, A.Yamauchi, H.Kai, Y.Kataoka: "Ovariectomy aggravates nifedipine-induced flushing of tail skin in mice"European Journal of Pharmacology. 481. 79-82 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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