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Mechanism of Mammalian Fertilization and Treatment of Sterility

Research Project

Project/Area Number 63480371
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Obstetrics and gynecology
Research InstitutionFukushima Medical University

Principal Investigator

HOSHI Kazuhiko  Fukushima Medical College, Department of Obstetrics and Gynecology, Associate Professor, 医学部・産科婦人科, 助教授 (20111289)

Co-Investigator(Kenkyū-buntansha) YANAGIDA Kaoru  Fukushima Medical College, Department of Obstetrics and Gynecology, Assistant Pr, 産科婦人科, 助手 (10182370)
Project Period (FY) 1988 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 1990: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1989: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1988: ¥4,400,000 (Direct Cost: ¥4,400,000)
KeywordsSpermatozoa / Hyperactivation / Acrosome reaction / Capacitation / Fibronectin / Zona pllucida / Cervical mucus / Male pronuclei / マイクロマニピュレ-ション / 体外受精 / 初期胚 / 先体反応 / capacitation / 胚凍結 / hyperactivation / 卵子 / 受精卵凍結 / 胚 / フィブロネクチン
Research Abstract

1. Hyperactivation of human spermatozoa
Suspensions of capacitating human spermatozoa were analyzed for movement characteristics using high-speed videomicrography. Hyperactivation exists human spermatozoa like other mammalian species.
2. Participation of fibronectin in sperm-egg fusion
Spermatozoa treated with anti-human fibronectin rabbit polyclonal antibody and were connected secondary antibody which was labelled with colloidal gold. Spermatozoa were observed with backscattered electron imaging mode of scanning electron microscopy. The localization of fibronectin was recognized in the equatorial segment of the spermatozoa. Sperm-egg fusion has reported to begin from the equatorial segment, and the recognition of the fibronectin localization in that region suggests that fibronectin on the surface of the spermatozoa is possibly related on the fertilization.
3. Mechanism of acrosome reaction of human spermatozoa
Cervical mucus accelerates the capacitation of human spermatozoa. Zona pellucida induces the acrosome reaction, but cumulus oophorus has no ability to induce the acrosome reaction.
4. The developing ability of mammalian sperm nuclei into pronuclei
The mature mammalian sperm nuclei treated with high temperature, acid, alkali or high osmotic pressure are capable of developing into pronuclei.

Report

(4 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • 1988 Annual Research Report
  • Research Products

    (28 results)

All Other

All Publications (28 results)

  • [Publications] Hoshi,K.,et al: "Changes in the motility pattern of human spermatozoa during in vitro incubation" Tohoku J.exp.Med.154. 47-56 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 星 和彦 他: "精子の受精能" 臨床婦人科産科. 42. 881-894 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hoshi,K.,et al: "Variation in the cholesterol I phospholipid ratio in human spermatozoa and its relationship with capacitation" Human Reproduction. 5. 71-74 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 星 和彦 他: "精子の形態的・機能的成熟" 日本受精着床学会雑誌. 8. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 柳田 薫・星 和彦 他: "哺乳類精子核の保存に関する研究" 日本受精着床学会雑誌. 8. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 佐々木 宏子・星 和彦 他: "ヒト精子表面におけるFibronectinの局在観察" 日本受精着床学会雑誌. 8. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 星 和彦: "精子学." 東京大学出版会,

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hoshi, K., et al: "Changes in the motility pattern of human spermatozoa during in vitro incubation." Tohoku J. exp. Med.154. 47-56 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Hoshi, K., et al: "Variation in the cholesterol/phospholipid ratio in human spermatozoa and its relationship with capacitation." Human Reproduction. 5. 71-74 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 星 和彦他: "冷蔵および凍結保存ハムスタ-卵使用によるハムスタ-テスト" 日不妊会誌. 36. 182-187 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Hoshi,K.,et al: "Variation in the cholesterol/phospholipid ratio in human spermatozod and its relationship with capacitation" Hum.Reprod.5. 71-74 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Yanagida,K.,et al: "Automated semen Analysis shows an increase in sperm concentration and motility with time in Makler chambers haring excess sample volume." Hum.Reprod.5. 193-196 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 星 和彦他: "精子の形態的・機能的成熟" 日本受精着床学会雑誌. 8.

    • Related Report
      1990 Annual Research Report
  • [Publications] 柳田 薫他: "哺乳類精子核の保存に関する研究" 日本受精着床学会雑誌. 8.

    • Related Report
      1990 Annual Research Report
  • [Publications] 佐々木 宏子,星 和彦他: "ヒト精子表面におけるFibronectinの局在観察" 日本受精着床学会雑誌. 8.

    • Related Report
      1990 Annual Research Report
  • [Publications] 星 和彦: "精子学" 東京大学出版会,

    • Related Report
      1990 Annual Research Report
  • [Publications] K.Hoshi et al: "Effect of agents used for zona pellucida removal on hamster oocyte penetration by human spermatozoa" Fukushima J.Med.Sci.34. 1-9 (1988)

    • Related Report
      1989 Annual Research Report
  • [Publications] 星和彦 他: "体外受精による妊婦初期の胎児モニタリング" Perinatal Care. 8. 1126-1131 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 会田都美子・星和彦: "ヒト精子のCapacitationに要する時間と精子コレステロ-ル/リン脂質比の関係" 日本不妊学会雑誌. 34. 886-892 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 柳田薫・星和彦 他: "精液分析方法の検討" 日本不妊学会雑誌. 34. 893-901 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 月川奏・星和彦 他: "ヒト精子運動能とPENETRAK test" 日本不妊学会雑誌. 35. 74-79 (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 星和彦 他: "冷蔵および凍結保存ハムスタ-卵使用によるハムスタ-テスト" 日本不妊学会雑誌. 35. 182-187 (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 柳田薫・星和彦 他: 日本受精着床学会雑誌. 4. 70-74 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] K.Hoshi,;K.Yanagida,et al: Tohoku J.Exp.Med.154. 47-56 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 星和彦・柳田薫 他: 日本不妊学会雑誌. 33. 268-278 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 星和彦・柳田薫 他: 臨床婦人科産科. 42. 881-894 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 吉松宣弘・柳田薫・星和彦 他: 哺乳動物卵子研究会誌. 5. 113-118 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 星和彦・柳田薫 他: 日本受精着床学会雑誌. 6. 13-18 (1989)

    • Related Report
      1988 Annual Research Report

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Published: 1988-04-01   Modified: 2016-04-21  

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