Sensory nerve pathways

Sensory nerve pathways are the physiological systems responsible for the transduction, transmission, and processing of sensory information from the periphery to the central nervous system [1]. These pathways involve primary afferent neurons that detect stimuli such as touch, temperature, and pain via specialized receptors and ion channels, including TRPV1 and voltage-gated sodium channels like Nav1.7 [2]. In pathological states like chronic pain or peripheral neuropathy, these pathways may become sensitized, leading to maladaptive signaling such as hyperalgesia or allodynia [3]. Therapeutic strategies often involve modulating these pathways through drugs like sodium channel blockers, calcium channel ligands (e.g., gabapentinoids), and opioids to reduce neuronal excitability and signal propagation [4]. While the term describes an anatomical and functional system, it is considered 'incorrect' as a single therapeutic target because drug discovery focuses on specific molecular components within the pathway rather than the system as a whole [5].

Other names

Somatosensory systemAfferent pathwaysSensory nervous systemNociceptive pathways

Modulation of signal transmission via sodium channel blockade, calcium channel subunit (alpha-2-delta) binding, opioid receptor agonism, or serotonin-norepinephrine reuptake inhibition.