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

Study of Chromogranin A in the cow; Physiological roles and practical application

Research Project

Project/Area Number 19K06396
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 42020:Veterinary medical science-related
Research InstitutionIwate University

Principal Investigator

Takahashi Toru  岩手大学, 農学部, 教授 (20355738)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsウシ / クロモグラニン A / 子宮 / クロモグラニンA / クロニグラニンA / 血管新生 / MMP / 組み替え発現 / 妊娠 / 低受胎
Outline of Research at the Start

研究代表者は、ウシの子宮内膜にCHGAが発現しており、3回以上授精しても受胎しないいわゆる低受胎牛では正常牛に比べてCHGAの発現量が低いという知見を報告した。CHGAの発現はプロジェステロンによって制御されていることから、CHGAが着床や妊娠維持に重要な役割を担っていると推察されるが、その実態は不明である。CHGAの複雑な生物学の解明は、着床や妊娠維持機構の解明とともに、低受胎の診断法開発や治癒判定の指標策定に繋がることが期待される。

Outline of Final Research Achievements

This study was conducted on the expression dynamics and physiological role of bovine chromogranin A. We constructed a system for measuring the blood concentration of bovine chromogranin A and examined the blood dynamics in the early stages of pregnancy. In the conception cases, there were no major fluctuations and the values remained low, but in the non-conception cases, there were some that showed irregular fluctuations. The expression of chromogranin A in bovine uterine perfusate was examined by immunoblotting, and the relationship with the conception performance in the cycle immediately after collection of the perfusate was examined. As a result, increased expression was observed in non-conceived cases. When chromogranin A was added to bovine endometrial epithelial cells and changes in gene expression were examined, it was shown that chromogranin A promotes the expression of chemokines in the endometrium.

Academic Significance and Societal Importance of the Research Achievements

乳牛の受胎率は過去数十年にわたって低下の一途を辿っており、その改善が急務になっている。本研究では乳牛の受胎性に関与する可能性のある因子としてクロモグラニン Aというタンパク質に注目して、その発現動態と生理的役割について検討した。クロモグラニン Aの発現は受胎例と不受胎例で異なった血中動態を示し、子宮内におけるタンパク質発現量にも違いが認められた。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2021 2020 2019

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (1 results) Book (1 results)

  • [Journal Article] Follicular dynamics during the pre-ovulatory and subsequent first follicular wave stages affect the pregnancy outcome in Japanese Black cows2021

    • Author(s)
      Yoshiyama T, Kanazawa T, Takahashi T.
    • Journal Title

      Journal of Reproduction and Development

      Volume: 67 Issue: 6 Pages: 345-351

    • DOI

      10.1262/jrd.2021-024

    • NAID

      130008128840

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of enzyme immunoassay for chromogranin A (CgA) and profiling of plasma CgA concentrations in the cow2021

    • Author(s)
      Saito C, Ido-Matsumoto H, Kumazaki H, Kubo T, Kanazawa T, Takahashi T.
    • Journal Title

      Anim Sci J.

      Volume: 92 Issue: 1

    • DOI

      10.1111/asj.13542

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of the Timed Re-Insemination (TRI-synch) program re-inseminating 24 days after the initial service in dairy cows2020

    • Author(s)
      Aizu M, Ido-Matsumoto H, Wada N, Kumazaki H, Kubo T, Kanazawa T, Izaike Y, Takahashi T.
    • Journal Title

      Anim Sci J.

      Volume: 91 Issue: 1

    • DOI

      10.1111/asj.13477

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Secreted protein of Ly6 domain 1 enhanced bovine trophoblastic cell migration activity2020

    • Author(s)
      Awad M, Kizaki K, Ishiguro-Oonuma T, Takahashi T, Hashizume K.
    • Journal Title

      In Vitro Cell Dev Biol Anim.

      Volume: 56 Issue: 10 Pages: 827-831

    • DOI

      10.1007/s11626-020-00521-x

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Newly identified interferon tau-responsive Hes family BHLH transcription factor 4 and cytidine/uridine monophosphate kinase 2 genes in peripheral blood granulocytes during early pregnancy in cows.2019

    • Author(s)
      Kikuchi M, Kizaki K, Shigeno S, Toji N, Ishiguro-Oonuma T, Koshi K, Takahashi T, Hashizume K.
    • Journal Title

      Domest Anim Endocrinol.

      Volume: 68 Pages: 64-72

    • DOI

      10.1016/j.domaniend.2019.01.006

    • Related Report
      2019 Research-status Report
  • [Presentation] 人工授精後5日から19日までのプロゲステロン徐放財の腟内留置が乳牛の受胎性に及ぼす効果2019

    • Author(s)
      岩崎紗也加、水田晴也、栗原雅子、児島珠由、髙橋 透
    • Organizer
      日本繁殖生物学会
    • Related Report
      2019 Research-status Report
  • [Book] 繁殖生物学 改訂版2020

    • Author(s)
      日本繁殖生物学会(編)分担共著
    • Total Pages
      351
    • Publisher
      インターズー
    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi