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Anti-platelet aggregation and plasma fibrinolysis-accelerating activities in oyster fungus (Pleurotus ostreatus)

Research Project

Project/Area Number 10680156
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 食生活
Research InstitutionKurashiki University of Science and the Atrs

Principal Investigator

SUMI Hiroyuki  Kurashiki University of Science and the Atrs, College of Science and Industrial Technology, Professor, 産業科学技術学部, 教授 (00107814)

Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1998: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywordsmushroom / Pleurotus ostreatus / platelet aggregation / ADP / fibrinolytic enzyme
Research Abstract

Oyster fungus (Pleurotus ostreatus) had strong activity for blocking of the aggregation of human platelets (220 × 10^6/ml) caused by ADP, collagen or thrombin. Active substance (named ASK-1) treated with Aspergillus/Rhizopus enzyme for 24 hrs at pH 4.5 could be easely extracted with water. After stopping the reaction by heating at 100 ℃ for 5 min, and then membrane filtering and lyophilizing, approximately 27 g of dark yellow powder were obtained from 1.7 kg mushroom. The IC_<50> value calculated with human PRP and ADP for the inducer was about 11.6-27.1 mg/ml.
By oral administration, ASK-1 showed strong inhibition for platelet aggregation in blood of both rats and humans. When administerd 500 mg/kg body in 6 healthy volunteers of 18-37 years, the platelet aggregation was decreased from 65±8% to 50± 13% using 10 μ M ADP for the inducer. Whereas the fibrinolytic activity determined by EFA and tPA were increased. By using zymography coupled with fibrinolysis accelerating substance (FAS), the activated fibrinolytic enzyme released from human cell was found to be tPA type plasminogen activator with molecular weight of about 70,000.
Oyster fungus had strong SOD and anti-oxidative activities. Values of 958±402 CU SOD activity/g (dry weight) determined by nitrite method was higher than that of Natto reported previously. The concentrated fraction using Celite 545 column had also anti-oxidative activity against 2-deoxylibose. After ingestion of this fraction in healthy human volunteers, both strong inhibitions for apetite and loss of weight were proved.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] 須見洋行: "薬に代わるこれからの新しい機能性食品の開発"食品加工技術. 20. 57-63 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 須見洋行,佐々木智広,矢田貝智恵子,小崎泰宣: "納豆中に含まれる線溶賦活物質とその性質"日本農芸化学会誌. 74. 1259-1264 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 須見洋行: "シメジには食欲を抑え脂肪を燃やす成分が豊富"開花. 4. 176-177 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 須見洋行: "血の巡り、血液凝固-線溶系に関する食品及びアロマエッセンスの分析"食品加工技術. 20. 64-70 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 須見洋行,矢田貝智恵子,須見敦: "納豆中に見出された強力な活性酸素消去酵素"日本醸造協会誌. 94. 1016-1018 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hiroyuki Sumi: "Strong anti-platelet aggregation and plasma fibrinolysis-accelerating activities in oyster fungus (Pleurotus ostreatus)"J.Home Econ.,Japan. 50. 683-688 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 須見洋行: "循環系に係わる効能食品-新しく見出された凝固、線溶関連成分-"第11回福山大学薬学部卒後研修会要旨集. 12-18 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 須見洋行: "続・血液、血管が若返る"マキノ出版. 236 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Sumi: "Progress of the functional food"J.Jpn.Soc.Food Engineering. 20-2. 57-63 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Sumi, T.Sasaki, C.Yatagai and Y.Kozaki: "Determination and properties of the fibrinolysis accelerating substance (FAS) in Japanese fermented soybean "natto""Nippon Nougei Kagaku Kaishi, Japan. 74-11. 1259-1264 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Sumi: "Effect on the loss of apetite and body weight in Shimeji mushroom"Kaika, Japan. 4-11. 176-177 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Sumi: "Food and aromaessence, relating circulation blood clotting, and fibrinolysis"J.Jpn.Soc.Food Engineering. 20-2. 64-70 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Sumi, C.Yatagai and A.Sumi: "Superoxide radical scavenging enzymes detected in the fermented soybean Natto"J.Brew.Soc.Japan. 94-12. 1016-1018 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Sumi: "Strong anti-platelet aggregation and plasma fibrinolysis-accelerating activities in oyster fungus (Pleurotus ostreatus)"J.Home Econ., Japan. 50-7. 683-688 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Sumi: "Novel clotting and fibrinolysis relating substances in food"11th Study of Fukuyama University, Faculty of Pharmacy and Pharmaceutical Sciences for Graduater. 12-18 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Sumi (ed.K.Kondoho): "Foods for the prevention of blood and vessel diseases (part 2)"Makino Shuppan, Tokyo. 236 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 須見洋行: "薬に代わるこれからの新しい機能性食品の開発"食品加工技術. 20・2. 57-63 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 須見洋行,佐々木智広,矢田貝智恵子,小崎泰宣: "納豆中に含まれる線溶賦活物質とその性質"日本農芸化学会誌. 74・11. 1259-1264 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 須見洋行: "シメジには食欲を抑え脂肪を燃やす成分が豊富"開花. 4・11. 176-177 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 須見洋行: "血の巡り、血液凝固-線溶系に関する食品及びアロマエッセンスの分析"食品加工技術. 20・2. 64-70 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 須見洋行,矢田貝智恵子,須見敦: "納豆中に見出された強力な活性酸素消去酵素"日本醸造協会誌. 94・12. 1016-1018 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] 須見洋行: "続・血液、血管が若返る"マキノ出版. 236 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Sumi: "Strong anti-platelet aggregation and plasma fibrinolysis-accelerating activities in oyster fungus(Pleurotus ostreatus)"J.Home Econ.Jpn. 50・7. 683-688 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 須見洋行: "循環系に係わる効能食品-新しく見出された凝固,線溶関連成分-" 第11回福山大学薬学部卒後研修会要旨集. 12-18 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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