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2007 Fiscal Year Final Research Report Summary

Visualization of Localization of 14C-labeled Lidocaine in Oral Tissue

Research Project

Project/Area Number 18592204
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Surgical dentistry
Research InstitutionTokyo Dental College

Principal Investigator

MAMIYA Hideki  Tokyo Dental College, Dental Anesthesiology, Assistant Professor (30266572)

Co-Investigator(Kenkyū-buntansha) ICHINOHE Tatsuya  Tokyo Dental College, Dental Anesthesiolog, Professor (40184626)
KANEKO Yuzuru  Tokyo Dental College, Dental Anesthesiology, Professor (00085747)
ANZAI Kazunori  National Institute of Radiological Sciences, 放射線安全研究センター, Team Leader (70128643)
Project Period (FY) 2006 – 2007
KeywordsAutoradiography / Radioisotope / Local Anesthetics / Drug Distribution
Research Abstract

Localization of lidocaine in oral mucosa of the rabbit was visualized using imaging plate autoradiography. Under general anesthesia, 14C-labeled 2% lidocaine solution with or without epinephrine was injected into oral mucosa or periodontal ligament of rabbits. Five minutes after injection, animals were killed and frozen. Slices of animals' head were obtained using a cryomicrotome. Bio-Imaging Analyzer System was used to visualize the accumulation of 14C in samples. To determine localization of 14C-labeled lidocaine in oral tissue, we scanned the same sliced sample and superimposed the two obtained images. Injected 14C-labeled lidocaine was clearly visualized. Localization of lidocaine with epinephrine around the root apex was more apparent than that without epinephrine. Labeled lidocaine injected into the periodontal ligament was observed along the root surface. This method thus appears to be useful for visualizing the localization of lidocaine in tissue.

  • Research Products

    (4 results)

All 2007 0

All Presentation (4 results)

  • [Presentation] 局所麻酔薬投与方法による組織内浸透経路の差異-14Cを用いた歯根膜内麻酔法と骨膜上麻酔法の比較2007

    • Author(s)
      間宮 秀樹, 山崎 貴希, 中村 公英, 安西 和紀, 一戸 達也, 金子 譲
    • Organizer
      第35回 日本歯科麻酔学会総会
    • Place of Presentation
      北九州国際会議場
    • Year and Date
      2007-10-04
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] 投与後の経過時間が兎の口腔組織内14C標識リドカインの局在性に与える影響2007

    • Author(s)
      山崎 貴希, 間宮 秀樹, 中村 公英, 安西 和紀, 一戸 達也, 金子 譲
    • Organizer
      第35回 日本歯科麻酔学会総会
    • Place of Presentation
      北九州国際会議場
    • Year and Date
      2007-10-04
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Comparison of drug distribution of local anesthetics administered by parastermal or periodontal ligament injection using 14C0

    • Author(s)
      Hideki, Mamiya, Takaki, Yamazaki, Kimihide, Nakamura, Kazunori, Anzai, Tatsuya, Ichinohe, Yuzuru, Kaneko
    • Organizer
      35th Japanese Dental Society of Anesthesiology
    • Place of Presentation
      Kita-Kyusyu city
    • Year and Date
      00001004
    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] The effect of the time course to drug distribution of local anesthetics administered in oral tissue of rabbit using 14C0

    • Author(s)
      Takaki, Yamazaki, Hideki, Mamiya, Kimihide, Nakamura, Tatsuya, Ichinohe, Kazunori, Anzai, Yuzuru, Kaneko
    • Organizer
      35th Japanese Dental Society of Anesthesiology
    • Place of Presentation
      Kita-Kyusyu city
    • Year and Date
      00001004
    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2010-02-04  

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