Table 1.

In neuropathic animals, a larger proportion of DHNs generate plateau potentials

	Mechanical threshold		Plateau neurones in superficial laminae		Plateau neurones in deep laminae
	Force (g)	%	n	%	n	%
Control	67.1 ± 3.9	100 ± 6.6†	0/7	0	7/25	28.0*
SNL	31.9 ± 1.8	47.6 ± 2.6†	0/4	0	5/6	83.3*
	†P < 0.0001		*P = 0.02

^*P = 0.02 versus naive rats.

The expression of plateaus appears specific to DHNs in deep laminae (deeper than 350 μm of the spinal cord surface). Recordings were obtained from allodynic rats presenting a clear decrease in the threshold force required to trigger withdrawal of the paw

^†P < 0.0001.