Table 4. Acetylcholine (ACh) contents, acetylcholine esterase (AChE) activity, and monoamine oxidase-B (MAO-B) activity in brains of mice fed PSW and LPSW

Treatments¹⁾	ACh contents(μM/mg protein)	AChE activity(μM/min/mg protein)	MAO-B activity(μM resorufin/min/mg protein)
CON	15.88±1.361^a	0.46±0.018^b	6.34±0.275^b
SCO	11.28±0.937^c	0.60±0.021^a	12.37±0.440^a
THA10	14.72±0.493^ab	0.47±0.023^b	7.42±2.628^b
PSW10	12.08±1.139^bc	0.53±0.029^ab	10.01±1.354^ab
PSW40	13.21±1.015^abc	0.52±0.046^ab	9.35±0.793^ab
LPSW100	14.16±0.823^abc	0.45±0.031^b	7.68±1.490^b
LPSW400	15.35±0.151^a	0.44±0.030^b	7.18±1.286^b

All values are mean±SE.
Means within same column with different letter differ significantly (p<0.05).
Control (CON); scopolamine (SCO, 1 mg/kg body weight (B.W.), intraperitoneally (i.p.); tetrahydroaminoacridine 10 [THA 10, tacrine; 10 mg/kg B.W. per oral (p.o.) with SCO (i.p.)]; pig skin water extracts [PSW 10, 10 mg/kg B.W. (p.o.) with SCO (i.p.)]; PSW 40 [40 mg/kg B.W. (p.o.) with SCO (i.p.)]; low molecular weight pig skin water extracts [LPSW 100, 100 mg/kg B.W. (p.o.) with SCO (i.p.)]; LPSW 400 [400 mg/kg B.W. (p.o.) with SCO (i.p.)].