Oral diseases · 2025
Ginsenoside Rb3 Inhibits Oxidative Stress and Alleviates Experimental Periodontitis in Rats.
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Meng Xin, Qu Huijuan, Zhang Xueying, Ji Honghai, Sun Minmin
Аннотация
OBJECTIVE: This study investigated the anti-inflammatory and antioxidative effects of ginsenoside Rb3 on experimental periodontitis.
METHODS: Experimental periodontitis was established by ligating the maxillary first molars. After 21 days of Rb3 treatment, rats were sacrificed for micro-CT and H&E staining analysis and serum assay. qPCR detected the expression of inflammatory genes. IF detected MAPKs pathway activation in periodontal tissues. The effects were determined using LPS-induced RAW264.7 cells. Gene expression levels were determined by qPCR. Intracellular ROS generation was detected by DCFH-DA staining and flow cytometry. WB detected the activation of signaling pathways.
RESULTS: Rb3 inhibited oxidative stress in experimental periodontitis, showing reduced gingivitis and alveolar bone resorption on H&E staining and micro-CT, and reduced iNOS mRNA in rats. Colorimetric results showed that Rb3 increased serum SOD and GSH-Px activities and decreased MDA levels in rats. IF analysis showed that Rb3 inhibited P38, ERK, and JNK activation. Rb3 pretreatment significantly decreased iNOS and IL-6 mRNA expression and ROS in Raw264.7 cells. WB analysis demonstrated that Rb3 blocked the activation of P38 and ERK.
CONCLUSION: Rb3 inhibits the level of oxidative stress and attenuates gingivitis and alveolar bone resorption in rats via the MAPKs signaling pathway.
METHODS: Experimental periodontitis was established by ligating the maxillary first molars. After 21 days of Rb3 treatment, rats were sacrificed for micro-CT and H&E staining analysis and serum assay. qPCR detected the expression of inflammatory genes. IF detected MAPKs pathway activation in periodontal tissues. The effects were determined using LPS-induced RAW264.7 cells. Gene expression levels were determined by qPCR. Intracellular ROS generation was detected by DCFH-DA staining and flow cytometry. WB detected the activation of signaling pathways.
RESULTS: Rb3 inhibited oxidative stress in experimental periodontitis, showing reduced gingivitis and alveolar bone resorption on H&E staining and micro-CT, and reduced iNOS mRNA in rats. Colorimetric results showed that Rb3 increased serum SOD and GSH-Px activities and decreased MDA levels in rats. IF analysis showed that Rb3 inhibited P38, ERK, and JNK activation. Rb3 pretreatment significantly decreased iNOS and IL-6 mRNA expression and ROS in Raw264.7 cells. WB analysis demonstrated that Rb3 blocked the activation of P38 and ERK.
CONCLUSION: Rb3 inhibits the level of oxidative stress and attenuates gingivitis and alveolar bone resorption in rats via the MAPKs signaling pathway.