Fos expression in tyrosine hydroxylase-containing neurons in rat brainstem after visceral noxious stimulation: an immunohistochemical study

Table 1 The number and distribution of the immunopositive neurons in the brainstem

Nuclei	Nuclei		Fos		TH/Fos
	Visc	Sub	Visc	Sub	Visc	Sub
SOL	203 ± 13	214 ± 17	254 ± 31	99 ± 7	60 ± 5	54 ± 5
LRT and RVL	42 ± 15	252 ± 24	57 ± 7	151 ± 13a	31 ± 4	90 ± 10a
LC	328 ± 26	330 ± 25	42 ± 6	103 ± 12a	26 ± 3	72 ± 9a

Data are shown as (^-x±s)

^aP < 0.05 Sub vs Visc. Visc: Visceral noxious stimulation; Sub: Subcutaneous noxious stimulation; TH: TH-ir neurons; Fos: Fos-ir neurons; TH/Fos: TH/Fos double-labeled neurons.