Nav1.9

Nav1.9 is a voltage-gated sodium channel encoded by the SCN11A gene in humans. This channel is primarily expressed in peripheral neurons and plays a crucial role in pain perception and nociception.

Function

Nav1.9 channels are involved in the generation and conduction of action potentials in nociceptive neurons. They contribute to the resting membrane potential and influence the excitability of sensory neurons. These channels are particularly important in the context of chronic pain conditions.

Clinical Significance

Mutations in the SCN11A gene have been associated with various pain disorders, including congenital insensitivity to pain and familial episodic pain syndrome. These mutations can lead to either a gain or loss of function of the Nav1.9 channel, affecting the neuronal excitability and pain perception.

Research

Nav1.9 is a target of interest in the development of new analgesic drugs. Understanding the role of Nav1.9 in pain pathways can lead to novel therapeutic strategies for managing neuropathic pain and other pain-related conditions.

See Also

• Voltage-gated sodium channel
• Pain management
• Neuropathic pain

References

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External Links

• SCN11A gene - NCBI
• Nav1.9 - UniProt