ArticlePhytotherapy research : PTR2022
Kaempferol exerts a neuroprotective effect to reduce neuropathic pain through TLR4/NF-ĸB signaling pathway.
Article in Phytotherapy research : PTR, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 1 of them a synthesis that pooled it.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
55 citing papers in PubMed, 1 synthesis or guideline pooled it, 104 citations in OpenAlex.
- Bibliometric and visual analysis of global publications on kaempferol.Frontiers in nutrition · 2024Pooled it
- Methyl eugenol increases neural microcirculation to promote nerve repair by regulating endothelial cell and Schwann cell communication via Ptn/Sdc4.Natural products and bioprospecting · 2026Article
- Regulatory Roles of Kaempferol on the PI3K/AKT/mTOR Signaling Pathway and Associated MicroRNAs in Different Cancer Types.International journal of molecular sciences · 2026Review
- From Xenobiotic Exposure to Neuroinflammation: Mechanisms Linking Lipopolysaccharide Signaling to Depressive-like Behavior.Journal of xenobiotics · 2026Review
- Bioactive compounds for neuroinflammation and neuropathic pain management: molecular and cellular mechanisms.Inflammopharmacology · 2026Review
- Flavonoids as Nutraceuticals to Treat Inflammatory Diseases: Focusing on Quercetin, Kaempferol, Luteolin, Apigenin, Epicatechin and Their Effects on Hepatic, Nervous, and Pulmonary Systems.Foods (Basel, Switzerland) · 2026Review
- Article
- Flavonoids in Medicine and Food Homology Substances: Structure-Activity Relationship, Application Challenges, and Cutting-Edge Technological Breakthroughs.Foods (Basel, Switzerland) · 2026Review
- Kaempferol Alleviates Glucocorticoid-Induced Osteonecrosis of the Femoral Head by Modulating Macrophage M1/M2 Polarization Through RhoA/ROCK-Mediated Mitophagy Activation.Biomedicines · 2026Article
- Interactions Between Nutraceuticals and α-Synuclein Conformational States: Molecular Mechanisms and Neuroprotective Implications in Parkinson's Disease.International journal of molecular sciences · 2026Review
- Microglia-derived neuroinflammatory pathways in neuropathic pain.The Korean journal of pain · 2026Review
- Targeting neuroimmune interactions: the therapeutic potential of kaempferol in immune-related central nervous system disorders.Frontiers in immunology · 2026Review
- Gallic acid exerts therapeutic effects on sciatica by reducing inflammatory responses through the regulation of NOX4-mediated oxidative stress.Frontiers in immunology · 2026Article
- Inhibition of Macrophage Activation by Minocycline Attenuates CCI-Induced Neuropathic Pain.Inflammation · 2025Article
- Unraveling the Disease Mechanisms of Neuropathic Pain Through Constructing miRNA-mRNA Networks Based on a Rat Model.Brain and behavior · 2025Article
- Electroacupuncture Attenuates Fibromyalgia Pain Through Increased PD-1 Expression in Female Mice.Brain sciences · 2025Article
- Mechanisms and interventions in aneurysmal subarachnoid hemorrhage: Unraveling the role of inflammatory responses and cell death in early brain injury (Review).Molecular medicine reports · 2025Review
- Exploring the effect and mechanism ofIBRO neuroscience reports · 2025Article
- Inhibition of S100A4 decreases neurotoxic astrocyte reactivity and attenuates neuropathic pain via the TLR4/NF-κB pathway in a rat model of spinal nerve ligation.The journal of headache and pain · 2025Article
- ( +)-Catechin Alleviates CCI-Induced Neuropathic Pain by Modulating Microglia M1 and M2 Polarization via the TLR4/MyD88/NF-κB Signaling Pathway.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2025Article
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
Abstract
Switching microglial polarization from the M1 to M2 phenotype is a promising therapeutic strategy for neuropathic pain (NP). Toll-like receptor 4 (TLR4) is activated by lipopolysaccharide (LPS). Uncontrolled activation of TLR4 has been proven to trigger chronic inflammation. Kaempferol, a dietary flavonoid, is known to have anti-inflammatory properties. This study is aimed to investigate the analgesic and anti-inflammatory effects and the underlying mechanisms of kaempferol, which were explored with an NP model in vivo and LPS-induced injury in microglial BV2 cells in vitro. The levels of proinflammatory cytokines were evaluated. H&E staining and immunohistochemistry were used to assess the sciatic nerve condition after chronic constriction injury surgery. Western blotting and immunofluorescence were used to determine whether TLR4/NF-ĸB signaling pathway plays a major role in kaempferol-mediated alleviation of neuroinflammation. Quantitative real-time polymerase chain reaction and flow cytometry were used to examine the modulator effect of kaempferol on microglial M1/M2 polarization. We found that kaempferol treatment can significantly reduce NP and proinflammatory cytokine production. Kaempferol attenuated the activation of TLR4/NF-κB pathways in LPS-activated BV2 cells. The analgesic effects of kaempferol on NP may be due to inhibition of microglia activation and switching the M1 to M2 phenotype.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.