Table 1.

Average percentage of FB-IR single immunostaining neurons containing the studied substances tested in different experimental groups

		FB+		Number of neurons
		NPY-IR	TH-IR
Control group	Average (%)	64.08*,**	4.25*	1,258
	SEM	1.44	3.67
RTX	Average (%)	82.97*	43.78*	1,300
	SEM	2.62	1.19
TTX	Average (%)	57.45**	77.49*	1,192
	SEM	3.81	1.55

Data are shown as the averages ± standard error of means (SEM) for the three data points per group. The significance of differences was estimated using the Duncan's test. The statistical significance was evaluated between the neuronal group presenting the same neurochemical characteristics

(*p ≤ 0.01; **p ≤ 0.05)