Table 2.

The comparison of the serum levels between the two groups before and after treatment ($\overline{x}\pm s$).

Group	Number of cases	GDNF (pg.mL−1)		NSE (μg. L−1)		IL-1β (μg. L−1)		MBP (μg. L−1)
		Before treatment	After treatment	Before treatment	After treatment	Before treatment	After treatment	Before treatment	After treatment
The control group	73	354.9 ± 38.6	522.5 ± 57.3	33.4 ± 4.6	22.7 ± 3.6	51.6 ± 6.5	26.3 ± 4.2	2.8 ± 0.5	2.4 ± 0.4
The research group	75	355.2 ± 38.5	592.33 ± 62.5	33.2 ± 4.5	14.3 ± 2.3	51.8 ± 6.7	18.3 ± 2.6	2.8 ± 0.6	2.0 ± 0.3
T	/	1.527	17.628	0.158	15.034	1.985	16.5428	0.854	14.936
P	/	>0.05	<0.05	>0.05	<0.05	>0.05	<0.05	>0.05	<0.05