Target intelligence / Profile preview

Nociceptor Nerve Ending

Molecular classification
Sensory neuron, Nerve ending
01

Overview

Nociceptor nerve endings are specialized sensory structures that detect potentially harmful or damaging stimuli and initiate the sensation of pain. These unencapsulated nerve endings are crucial for the body's protective warning system, found in various tissues like skin, muscle, and viscera. They are classified based on conduction velocity into Aδ (sharp pain) and C (prolonged pain) fibers, and their activation leads to pain perception, protective reflexes, and neurogenic inflammation. Targeting nociceptors can alleviate pain, but also carries risks of sensitization and drug-related side effects.

Other names
Free nerve endingPain receptorNociceptive neuronAδ fiber nociceptorC fiber nociceptor
02

Mechanism of action

N/A

03

Biological functions

Pain perceptionDetection of noxious stimuliSignal transductionNeurogenic inflammationProtective reflexesTissue monitoring
04

Disease associations

InflammationChronic painNeuropathic painHyperalgesiaAllodynia
05

Safety considerations

Potential for sensitization leading to chronic painSide effects of drugs targeting nociceptors (e.g., opioid addiction)
06

Interacting drugs

Opioids

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