ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2025
Targeting the insular cortex for neuropathic pain modulation: Insights into synaptic and neuronal mechanisms.
Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Lysophosphatidic acid receptor 5 in insular cortex as a potential analgesic target in neuropathic pain.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025Article
- Targeting the insular cortex for neuropathic pain modulation: Insights into synaptic and neuronal mechanisms.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025Article
- Sex differences in pain perception and modulation in the brain: effects of insular cortex stimulation on chronic pain relief.Brain communications · 2025Article
- Top-down descending modulation of dorsal spinal excitatory transmission from the insular cortex.Molecular painArticle
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Authors and funding
5 authors.
Funding
Abstract
Neuropathic pain, caused by nerve damage, greatly affects quality of life. Recent research proposes modulating brain activity, particularly through electrical stimulation of the insular cortex (IC), as a treatment option. This study aimed to understand how IC stimulation (ICS) affects pain modulation. In a rat neuropathy model, researchers used optogenetic and ICS techniques to evaluate changes in mechanical allodynia and synaptic changes, focusing on glutamate receptors (AMPAR, NR2A, NR2B). Optogenetic inhibition of IC neurons relieved pain without altering synaptic plasticity. However, repetitive ICS combined with optogenetic activation diminished the pain-relieving effects of ICS and increased AMPAR and NR2B receptor levels. Additionally, activating inhibitory neurons also reduced pain, while repetitive activation of excitatory neurons lessened the effectiveness of ICS and was associated with heightened receptor expression. These findings suggest that inhibiting excitatory neurons or activating inhibitory neurons in the IC could help modulate pain in neuropathic conditions, shedding light on how ICS can influence pain management through changes in synaptic plasticity.
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