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2023 Fiscal Year Annual Research Report

roteomic, metagenomic and genome-wide analyses of oral cavity of ovariectomized rats with psychological stress

Research Project

Project/Area Number 21K21094
Research InstitutionHealth Sciences University of Hokkaido

Principal Investigator

PAUDEL Durga  北海道医療大学, 先端研究推進センター, 助教 (20910590)

Project Period (FY) 2021-08-30 – 2024-03-31
Keywordspsychological stress / salivary gland / trancriptome / RNA-seq
Outline of Annual Research Achievements

The research plan was to identify proteomic, metagenomic, and genome-wide alteration in the oral cavity under psychological stress and post-menopausal condition using an animal model. Various experiments were conducted to meet the research goal. One of the most important findings was from the genome-wide analysis of the salivary glands under psychological stress condition. The study identified some important genes that were altered in the salivary glands of rats due to psychological stress conditions. The findings have been published in an international journal (J Oral Pathol Med. 2024;53(2):150-158. doi:10.1111/jop.13512). The results showed differentially expressed genes between the stress group and the control. Among the differentially expressed genes, FosB, the most downregulated gene may hint that the submandibular gland could be involved in stress response. The downregulation of FosB in the submandibular gland may be a novel mechanism in psychological stress. The genesets for gene ontology cellular component, molecular function, and KEGG showed that pathways related to ribosome biosynthesis and function were downregulated in the stress group compared to the control.The findings of the present study are important in understanding the effect of psychological stress on the oral cavity. The altered gene expression and molecular pathways in the submandibular gland under psychological stress may affect salivary flow, alter the salivary proteins, or change the physical properties of saliva.

  • Research Products

    (3 results)

All 2024 2023

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (2 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Transcriptomic analysis of the submandibular gland under psychological stress condition2024

    • Author(s)
      Paudel Durga、Uehara Osamu、Giri Sarita、Morikawa Tetsuro、Yoshida Koki、Kitagawa Takao、Ariwansa Dedy、Acharya Nisha、Ninomiya Kazunori、Kuramitsu Yasuhiro、Ohta Tohru、Kobayashi Masanobu、Abiko Yoshihiro
    • Journal Title

      Journal of Oral Pathology & Medicine

      Volume: 53 Pages: 150~158

    • DOI

      10.1111/jop.13512

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Research trends in Psychosomatic Dentistry: Proteomic, metagenomic and transcriptomic analysis of saliva and submandibular gland in psychological stress2023

    • Author(s)
      Durga Paudel
    • Organizer
      Indonesia Dental Exhibition & Conference, Indonesia
    • Int'l Joint Research / Invited
  • [Presentation] Effect of psychological stress on transcriptome of submandibular gland2023

    • Author(s)
      Durga Paudel, Osamu Uehara, Tetsuro Morikawa, Koki Yoshida and Yoshihiro Abiko
    • Organizer
      2023 AADOCR/CADR Annual Meeting & Exhibition, USA
    • Int'l Joint Research

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Published: 2024-12-25  

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