Table 1.

The average number of serotonin-positive cells (per microscopic observation field—0.15 mm²) in the mucosal layer of the porcine small intestine in control animals (C group) and in animals treated with low (Exp I G) and high (Exp II G) doses of bisphenol A.

Part of the Intestine	C Group	Exp I G	Exp II G
Duodenum
Animal 1	13.4	15.26	22.76
Animal 2	13.96	16.34	21.72
Animal 3	11.6	18.42	20.33
Animal 4	12.26	16.94	17.34
Animal 5	11.16	14.34	18.92
Average ± SEM	12.48 ± 0.53	16.26 ± 0.70 *	20.21 ± 0.10 *
Jejunum
Animal 1	7.04	9.76	13.88
Animal 2	6.96	10.34	12.96
Animal 3	7.54	10.18	12.56
Animal 4	7.64	10.52	13.64
Animal 5	8.15	9.6	14.24
Average ± SEM	7.47 ± 0.22	10.08 ± 0.17 *	13.46 ± 0.31 *
Ileum
Animal 1	8.42	13	13.92
Animal 2	8.38	12.14	15.58
Animal 3	9.64	11.16	13.06
Animal 4	7.78	10.42	14.36
Animal 5	8.72	13.84	16.52
Average ± SEM	8.59 ± 0.30	12.11 ± 0.61 *	14.69 ± 0.61 *

Statistically significant differences (p ≤ 0.05) between the C group and Exp I group, as well as between C group and Exp II group in particular segments of the intestine are marked with *.