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Investigation of Factors Affecting Expression of Antimicrobial Peptide Defensin on Oral Mucosal Epithelium

Research Project

Project/Area Number 25870753
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Prosthodontics/ Dental materials science and
Pathobiological dentistry/Dental radiology
Research InstitutionTokyo Dental College

Principal Investigator

OGAMI Koichiro  東京歯科大学, 歯学部, 講師 (40366175)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
KeywordsDefensin / 抗菌ペプチド / 唾液 / ディフェンシン
Outline of Final Research Achievements

Some denture wearers with poor oral hygiene do not exhibit these inflammation. It is considered that expression of antimicrobial peptide defensin is related though the factors involved in the level of expression of defensin. The purpose of this study was to clarify the associated factors of beta-defensin level in healthy subjects.
Healthy 22 dentulous subjects who were not affected by systemic disease or medication were enrolled in the study. Salivary beta-defensin level was measured using an enzyme-linked immunosorbent assay. The number of total anaerobic bacteria in saliva, flow rate of resting whole saliva and tongue coating status were measured. Subjects were asked to answer the questionnaire. Stepwise logistic regression analysis was used to identify which factors were associated with beta-defensin levels.The stepwise logistic regression analysis showed that total anaerobic bacterial count in saliva was significantly associated with beta-defensin level.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (2 results)

All 2014

All Presentation (2 results)

  • [Presentation] Investigation of Factors Affecting Expression of Antimicrobal Peptide Defensin on Oral Mucosal Epithelium2014

    • Author(s)
      Ogami, K., Ryu, M., Uchiyama, H., Koike, T., Tomura, K., Ueda, T., Sakurai, K.
    • Organizer
      Indonesian prosthodontic society and Japan Prosthodontic Society Joint Meeting
    • Place of Presentation
      Bali, Indonesia
    • Year and Date
      2014-10-30 – 2014-11-01
    • Related Report
      2014 Annual Research Report
  • [Presentation] 口腔粘膜上皮の抗菌ペプチドディフェンシンの発現に影響を与える因子の検討2014

    • Author(s)
      大神 浩一郎,竜 正大,内山 宙,古池崇志,戸村恭子,上田貴之,櫻井 薫
    • Organizer
      日本老年歯科医学会
    • Place of Presentation
      福岡市 電気ビルみらいホール
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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