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Chronic Post-Ischemia Pain Model for Complex Regional Pain Syndrome Type-I in Rats
Published on: January 21, 2020
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Human pain channelopathies
Maddalena Comini1, Andreas C Themistocleous1, David L H Bennett1
1Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom.
Handbook of Clinical Neurology
|August 22, 2024
Summary
Mutations in ion channels, like voltage-gated sodium channels (VGSCs), cause inherited pain disorders. Understanding these pain channelopathies offers new targets for pain relief and personalized treatment strategies.
Area of Science:
- Neuroscience
- Molecular Biology
- Genetics
Background:
- Nociceptors transmit pain signals via ion channels.
- Mutations in these ion channels are linked to human pain disorders.
Purpose of the Study:
- To explore the role of ion channels in pain transduction and transmission.
- To investigate the link between ion channel mutations and inherited pain conditions.
- To identify potential therapeutic targets for pain management.
Main Methods:
- Analysis of molecular mechanisms of nociception.
- Genetic studies linking ion channel variants to pain phenotypes.
- Biophysical characterization of mutated ion channels.
Main Results:
- Loss-of-function mutations in NaV1.7 cause inability to feel pain; gain-of-function mutations cause neuropathic pain.
- Variants in VGSCs 1.8 and 1.9 are also associated with pain disorders.
- A mutation in TRPA1 causes a familial episodic pain disorder.
- Ion channel variants contribute to common neuropathic pain, like diabetic neuropathy.
Conclusions:
- Ion channels are critical for pain signaling and represent key targets for analgesic development.
- Genotype-based stratification may enhance the efficacy of existing pain medications.
Keywords:
ChannelopathiesCongenital insensitivity to painElectrophysiologyErythromelalgiaFamilial episodic pain syndromeIon channelsNociceptorsPainSmall-fiber neuropathyMore Related Videos
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