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Probucol attenuates gentamicin-induced cochlear hair cell loss by inhibition of apoptosis.

Research Project

Project/Area Number 23592474
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Otorhinolaryngology
Research InstitutionThe University of Tokyo

Principal Investigator

SAKAMOTO Takashi  東京大学, 医学部附属病院, 講師 (50323548)

Co-Investigator(Kenkyū-buntansha) KAKIGI Akinobu  東京大学, 医学部附属病院耳鼻咽喉科, 講師 (60243820)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Keywords内耳有毛細胞 / 抗脂血症薬 / アポトーシス / プロブコール / 高脂血症薬 / 高脂血症治療薬
Research Abstract

Probucol is one of the representative lipid-lowering agent with anti-inflammatory and antioxidant properties that has a long history of clinical application for the treatment and prevention of cardiovascular diseases. Recently, several studies have revealed its neuroprotective property. However, to date, protective effect of probucol for cochlear hair cell remains to be elucidated. In the present using cochlear explant culture for 24 h, probucol attenuated hair cell loss and apoptosis induced by 0.3 micro M of gentamicin. Moreover, 100 micro M of probucol was most effective, suggesting that there is an optimal concentration for protective effect. These results revealed the neuroprotective effect of probucol in cochlear hair cells.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (5 results)

All 2013 2011

All Journal Article (4 results) Presentation (1 results)

  • [Journal Article] Evaluation of the internal structure of normal and pathological Guinea pig cochleae using optical coherence tomography2013

    • Author(s)
      Kakigi A, Takubo Y, Egami N, Kashio A, Ushio M, Sakamoto T, Yamashita S, Yamasoba T
    • Journal Title

      Audiol Neurootol

      Volume: 18(5) Pages: 335-43

    • Related Report
      2013 Final Research Report
  • [Journal Article] Age-related hearing loss in Mn-SOD heterozygous knockout mice2013

    • Author(s)
      Kinoshita M, Sakamoto T, Kashio A, Shimizu T, Yamasoba T
    • Journal Title

      Oxid Med Cell Longev

      Volume: 2013 Pages: 325702-325702

    • Related Report
      2013 Final Research Report
  • [Journal Article] Morphological and functional changes in a new animal model of Meniere's disease2013

    • Author(s)
      Egami N, Kakigi A, Sakamoto T, Takeda T, Hyodo M, Yamasoba T
    • Journal Title

      Lab Invest

      Volume: 93(9) Pages: 1001-11

    • Related Report
      2013 Final Research Report
  • [Journal Article] Current concepts in age-related hearing loss : epidemiology and mechanistic pathways2013

    • Author(s)
      Yamasoba T, Lin FR, Someya S, Kashio A, Sakamoto T, Kondo K
    • Journal Title

      Hear Res

      Pages: 30-8

    • Related Report
      2013 Final Research Report
  • [Presentation] 外耳道閉鎖症の術後聴力に影響を及ぼす因子に関する多重ロジスティック回帰分析による検討2011

    • Author(s)
      坂本幸士、樫尾明憲、安井拓也、狩野章太郎、柿木章伸、山岨達也
    • Organizer
      第21回日本耳科学会
    • Place of Presentation
      宜野湾市沖縄県
    • Related Report
      2013 Final Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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