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Ginsenoside Rb3 Inhibits Oxidative Stress and Alleviates Experimental Periodontitis in Rats.

Xin Meng1, Huijuan Qu2, Xueying Zhang1

  • 1School of Stomatology, Shandong Second Medical University, Weifang, China.

Oral Diseases
|March 24, 2025
PubMed
Summary
This summary is machine-generated.

Ginsenoside Rb3 effectively reduced inflammation and bone loss in experimental periodontitis by inhibiting oxidative stress and activating the MAPKs pathway.

Keywords:
chronic periodontitisginsenoside Rb3oxidative stress

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Area of Science:

  • Periodontology
  • Pharmacology
  • Molecular Biology

Background:

  • Periodontitis is a common inflammatory disease affecting tooth-supporting structures.
  • Oxidative stress plays a crucial role in the pathogenesis of periodontitis.
  • Ginsenoside Rb3 is a natural compound with potential therapeutic properties.

Purpose of the Study:

  • To investigate the anti-inflammatory and antioxidative effects of ginsenoside Rb3 in a rat model of experimental periodontitis.
  • To elucidate the underlying molecular mechanisms, including the involvement of the MAPKs signaling pathway.

Main Methods:

  • Experimental periodontitis was induced in rats by ligating maxillary first molars.
  • Ginsenoside Rb3 treatment was administered for 21 days.
  • Analyses included micro-CT, H&E staining, serum assays, qPCR, immunofluorescence (IF), and Western blotting (WB).
  • In vitro studies used LPS-induced RAW264.7 cells to assess effects on inflammatory gene expression and reactive oxygen species (ROS) generation.

Main Results:

  • Ginsenoside Rb3 treatment significantly reduced gingivitis and alveolar bone resorption.
  • It decreased oxidative stress markers, including inducible nitric oxide synthase (iNOS) mRNA, and increased serum antioxidant enzyme activities (SOD, GSH-Px).
  • Rb3 inhibited the activation of key MAPKs signaling pathway components (p38, ERK, JNK) in periodontal tissues and RAW264.7 cells.
  • Rb3 pretreatment reduced iNOS and IL-6 mRNA expression and ROS generation in LPS-stimulated cells.

Conclusions:

  • Ginsenoside Rb3 demonstrates significant anti-inflammatory and antioxidative effects in experimental periodontitis.
  • These beneficial effects are mediated through the inhibition of oxidative stress and the modulation of the MAPKs signaling pathway.
  • Rb3 shows potential as a therapeutic agent for periodontitis.