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Voltage-gated sodium (Nay) channels play key roles in induction, transmission,transduction of pathological pain.Nay channels are composed of a pore-forming α subunit and associated β subunits.Each of β subunit (β1-β4)isa single membrane-spanning glycoprotein with one Ig-like motif in their extracellular domains, which may bind to Chondroitin sulfate proteoglycans (CSPGs).