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2017 Fiscal Year Annual Research Report

Role of corticotropin-releasing factor on bladder function in rats with psychology stress

Research Project

Project/Area Number 15K15582
Research InstitutionUniversity of Fukui

Principal Investigator

横山 修  福井大学, 学術研究院医学系部門, 教授 (90242552)

Co-Investigator(Kenkyū-buntansha) 伊藤 秀明  福井大学, 学術研究院医学系部門, 准教授 (00345620)
黒川 哲之  福井大学, 医学部, 助教 (70529346) [Withdrawn]
関 雅也  福井大学, 学術研究院医学系部門, 助教 (70572444)
Project Period (FY) 2015-04-01 – 2018-03-31
Keywordsストレス / Corticotropin / 下部尿路機能障害 / ムスカリン受容体 / CRF-R1
Outline of Annual Research Achievements

最終年度ではWKYラットに限定して、心理ストレスによるラットの排尿状態の変化、膀胱でのCRF・CRF受容体発現、およびムスカリン受容体の発現、膀胱切片のムスカリン収縮の変化について検討した。ストレス負荷に伴う排尿パラメーターの変化については、1回排尿量には変化がみられなかったが、1日尿量の増加とともに排尿回数の増加も認められた。膀胱の各種受容体のmRNAをreal-time PCR法で測定したところ、心理ストレス群ではCRF、CRF受容体1、M3受容体のmRNAの発現が増加していた。さらに心理ストレス群の膀胱切片を用いた等尺性収縮実験ではカルバコール収縮が有意に増強し、CRF receptor 1 antagonistのantalarmin 10-6Mを添加しても、等尺性収縮に変化は認められなかった。これまでの報告では、Wister ratsにコルチコステロンを連続投与するとうつ症状と排尿筋過活動を引き起こし、CRF receptor 1 antagonistの同時投与はこの症状を抑制する(Int Urogynecol J. 2016)、あるいは寛解後の潰瘍性大腸炎患者の病状の再燃において、M2/M3受容体及びCRFを発現した好酸球の関与が指摘されている(Gastroenterology. 2)。膀胱におけるCRFとM3受容体の関連性は現時点で不明であるが、心理ストレスが膀胱発現CRFを介して膀胱収縮に関与している可能性が示唆され、さらなる研究を継続する予定である。

  • Research Products

    (16 results)

All 2017

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 9 results,  Invited: 1 results)

  • [Journal Article] Nerve growth factor release from the urothelium increases via activation of bladder C-fiber in rats with cerebral infarction2017

    • Author(s)
      R.Yokokawa, H.Akino, H.Ito, X.Zha, O.Yokoyama
    • Journal Title

      Neurourol Urodyn

      Volume: 36 Pages: 1448-1455

    • DOI

      10.1002/nau.23142

    • Peer Reviewed
  • [Journal Article] Safety and efficacy of the combination of once-daily tadalafil and alpha-1 blocker in Japanese men with lower urinary tract symptoms suggestive of benign prostatic hyperplasia: A randomized, placebo-controlled, cross-over study2017

    • Author(s)
      M.Takeda, O.Yokoyama, M.Yoshida, O.Nishizawa, K.Hirata, R.Nakaoka, Y.Takita, M.Murakami
    • Journal Title

      Int J Urol

      Volume: 24 Pages: 539-547

    • DOI

      10.1111/iju.13357

    • Peer Reviewed / Open Access
  • [Journal Article] Appearance of high endothelial venule-like vessels in benign prostatic hyperplasia is associated with lower urinary tract symptoms2017

    • Author(s)
      S.Inamura, T.Shinagawa, H.Hoshino, Y.Sakai, Y.Imamura, O.Yokoyama, M.Kobayashi
    • Journal Title

      Prostate

      Volume: 77 Pages: 794-802

    • DOI

      10.1002/pros.23319

    • Peer Reviewed
  • [Journal Article] Nocturnal polyuria and hypertension in patients with lifestyle related diseases and overactive bladder2017

    • Author(s)
      O.Yokoyama, O.Nishizawa, Y.Homma, M.Takeda, M.Gotoh, H.Kakizaki, H.Akino, K.Hayashi, K.Yonemoto; OASIS project group.
    • Journal Title

      J Urol

      Volume: 197 Pages: 423-431

    • DOI

      10.1016/j.juro.2016.08.087

    • Peer Reviewed
  • [Journal Article] Clinicopathological implications to micropapillary bladder urothelial carcinoma of the presence of sialyl Lewis X-decorated mucin 1 in stroma-facing membranes.2017

    • Author(s)
      8.Shinagawa T, Hoshino H, Taga M, Sakai Y, Imamura Y, Yokoyama O, Kobayashi M.
    • Journal Title

      Urol Oncol.

      Volume: 17 Pages: 1078-1439

    • DOI

      10.1016/j.urolonc.

    • Peer Reviewed
  • [Journal Article] Cost-Effectiveness Analysis of Long-Term Intermittent Self-Catheterization with Hydrophilic-Coated and Uncoated Catheters in Patients with Spinal Cord Injury in Japan.2017

    • Author(s)
      6.Watanabe T, Yamamoto S, Gotoh M, Saitoh T, Yokoyama O, Murata T, Takeda M.
    • Journal Title

      Low Urin Tract Symptoms

      Volume: 9 Pages: 142-150

    • DOI

      10.1111/luts.12122.

    • Peer Reviewed
  • [Journal Article] Clinical guidelines for male lower urinary tract symptoms and benign prostatic hyperplasia.2017

    • Author(s)
      7.Homma Y, Gotoh M, Kawauchi A, Kojima Y, Masumori N, Nagai A, Saitoh T, Sakai H, Takahashi S, Ukimura O, Yamanishi T, Yokoyama O, Yoshida M, Maeda K.
    • Journal Title

      Int J Urol

      Volume: 24 Pages: 716-729

    • DOI

      10.1111/iju

    • Peer Reviewed
  • [Presentation] Night-time frequency deteriorate sleep and quality of life: an analysis of international prostate symptom score and sleep questionnaire2017

    • Author(s)
      Y.Matsuta, Y.Aoki, H.Ito, O.Yokoyama
    • Organizer
      International Continence Society 47th Annual Meeting(ICS2017)
    • Int'l Joint Research
  • [Presentation] Pharmacological treatment of urinary incontinence in Japan2017

    • Author(s)
      O.Yokoyama
    • Organizer
      2017 TUA Annual Meeting
    • Int'l Joint Research / Invited
  • [Presentation] Night-time frequency deteriorate sleep and quality of life: an analysis of international prostate symptom score and sleep questionnaire2017

    • Author(s)
      S.Inamura, T.Shinagawa, H.Hoshino, Y.Sakai, Y.Imamura, O.Yokoyama, M.Kobayashi
    • Organizer
      International Continence Society 47th Annual Meeting(ICS2017)
    • Int'l Joint Research
  • [Presentation] Effects of imidafenacin on urine production, voided volume, and hours of undisturbed sleep in overactive bladder patients with nocturnal polyuria; post hoc analysis of two clinical trials2017

    • Author(s)
      O.Yokoyama, M.Takeda, M.Gotoh, M.Yoshida, H.Kakizaki, S.Takahashi, N.Masumori
    • Organizer
      EAU2017
    • Int'l Joint Research
  • [Presentation] Relationship between overactive bladder and metabolic syndrome: A cross-sectional study among Japanese men and women2017

    • Author(s)
      Y.Aoki, C.Matsumoto, Y.Matsuta, H.Ito, Y.Kusaka, O.Yokoyama
    • Organizer
      AUA Annual Meeting 2017
    • Int'l Joint Research
  • [Presentation] Overactive bladder is related to sexual well-being in japanese women2017

    • Author(s)
      Y.Aoki, K.Sasaki, Y.Matsuta, H.Ito, C.Matsumoto, Y.Kusaka, O.Yokoyama
    • Organizer
      AUA Annual Meeting 2017
    • Int'l Joint Research
  • [Presentation] Relationship between female overactive bladder and metabolic syndrome2017

    • Author(s)
      Y.Aoki, C.Matsumoto, M.Okada, Y.Matsuta, H.Ito, Y.Kusaka, O.Yokoyama
    • Organizer
      The 12th Pan-Pacific Continence Society (PPCS) Annual Meeting
    • Int'l Joint Research
  • [Presentation] Is overactive bladder another facet of the metabolic syndrome? : a cross-sectional study among japanese men and women2017

    • Author(s)
      Y.Aoki, M.Okada, Y.Matsuta, H.Ito, C.Matsumoto, Y.Kusaka, O.Yokoyama
    • Organizer
      International Continence Society 47th Annual Meeting(ICS2017)
    • Int'l Joint Research
  • [Presentation] Accuracy of bladder volume determination using a new portable handheld ultrasound bladder scanner: a prospective study of 34 consecutive inpatients2017

    • Author(s)
      Y.Aoki, E.Sasamura, C.Kimura, K.Fujita, A.Itoga, Y.Matsuta, H.Ito, O.Yokoyama
    • Organizer
      International Continence Society 47th Annual Meeting(ICS2017)
    • Int'l Joint Research

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Published: 2018-12-17  

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