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Ferulic acid alleviates sciatica by inhibiting peripheral sensitization through the RhoA/p38MAPK signalling pathway
Di Zhang1, Bei Jing1, Zhenni Chen1
1College of Traditional Chinese Medicine, Jinan University, Guangzhou, China.
Phytomedicine : International Journal of Phytotherapy and Phytopharmacology
|September 17, 2022
Summary
Ferulic acid effectively alleviates sciatica pain by reducing inflammation and nerve sensitization. This natural compound targets key inflammatory pathways, offering a promising therapeutic option for sciatica relief.
Area of Science:
- Neuroscience
- Pharmacology
- Biochemistry
Background:
- Sciatica pain management often involves nonsteroidal anti-inflammatory drugs (NSAIDs) with limited efficacy.
- Exploring novel therapeutic agents for sciatica is crucial.
Purpose of the Study:
- To investigate the therapeutic potential of ferulic acid in alleviating sciatica.
- To elucidate the underlying mechanisms of ferulic acid's action on sciatica.
Main Methods:
- A rat model of chronic constriction injury (CCI) was established to induce sciatica.
- Behavioral tests, ELISA, PCR, Western blots, and immunofluorescence were employed.
- Cellular experiments utilized specific inhibitors to explore molecular pathways.
Main Results:
- Ferulic acid treatment significantly reduced thermal hyperalgesia in rats with sciatica.
- It decreased pro-inflammatory markers (IL-1β, IL-6, TNF-α, CRP) and nerve sensitization markers (TRPV1, TRPA1) in dorsal root ganglion neurons.
- Ferulic acid modulated microglial polarization (M1 to M2) and inhibited the RhoA/Rock/p38 MAPK pathway.
Conclusions:
- Ferulic acid demonstrates significant therapeutic effects against sciatica.
- It alleviates sciatica by inhibiting peripheral sensitization via the RhoA/p38 MAPK pathway.
- Ferulic acid reduces inflammatory factors and key nerve sensitization markers, offering a novel treatment strategy.
