Table 3.

Intracellular acetylcholine (ACh) and choline (Ch) level in PC12 cells (ng/mg) ^a

Group	Control	NGF (50 ng/ml)	ROEO (10 μg/ml)
Total choline (Ch)	2156.21 ± 237.73	2660.6 ± 178.16 *	2645.49 ± 244.18*
Acetylcholine (ACh)	9.51 ± 1.13	11.99 ± 2.78*	11.88 ± 2.26*

^aData represent the mean ± .SD. *P ≤ 0.05, **P ≤ 0.01 vs. control