Table 1.

Effect of PGE₂ on small DRG neurons of different IB4-binding classes from control animals

	Strongly IB4+	Weakly IB4+	IB4–
Number of cells tested with PGE2	10	14	9
% of neurons responsive to PGE2 [number of responsive cells]	60% [6 cells]	71% [10 cells]	67% [6 cells]
% reduction in rheobase induced by 10 nm PGE2	13 ± 5	12 ± 4	9 ± 4
% reduction in rheobase induced by 100 nm PGE2	23 ± 3	24 ± 4	27 ± 7
Baseline rheobase, pA (including neurons not tested with PGE2)	384 ± 56 (n = 20)	313 ± 45 (n = 23)	294 ± 47 (n = 20)