. 2014 May 9;9(5):e96780. doi: 10.1371/journal.pone.0096780

Table 2. The effect of different active extracts on cell viability, cellular antioxidant enzymes (Cu/Zn-SOD, Mn-SOD, GSH-Px and CAT) activities and MDA content in MRC-5 cells subjected to H₂O₂-induced oxidative stress.

	Cell viability (%)	Cu/Zn-SOD (U/mL)	Mn-SOD (U/mL)	GSH-Px (U/mL)	CAT (U/mL)	MDA (µM)
Control	100.00±0.552^a	16.138±0.074^a	6.703±1.411^a	17.143±1.276^a	5.199±0.077^a	1.667±0.112^f
H₂O₂	57.247±0.288^g	7.469±0.222^g	0.999±0.428^d	3.158±0.638^d	0.248±0.032^e	8.889±0.224^a
V_E+H₂O₂	68.726±0.521^e	8.826±0.369^f	4.706±0.652^bc	9.925±1.276^c	2.010±0.160^d	5.316±0.112^c
CF-AME+H₂O₂	67.058±0.185^f	9.558±2.221^e	5.014±0.521^b	5.414±1.276^d	1.852±0.064^d	7.222±0.114^b
A₁+H₂O₂	83.509±0.236^b	12.691±0.074^b	3.259±0.019^c	13.083±0.638^b	3.568±0.064^b	3.730±0.112^e
E₁+H₂O₂	77.669±0.352^c	12.012±0.148^c	4.998±0.316^b	10.827±1.276^bc	3.500±0.032^b	4.841±0.337^d
TS^#(A₁+CF-AME+H₂O₂)	75.283±0.173^d	11.124±0.148^d	4.136±0.270^bc	9.248±0.318^c	2.710±0.001^c	5.476±0.116^c

Data were means ± standard deviation (n = 3).

^a-g

Different letters within the same column indicated that means were statistically different at P<0.05.

TS: the theoretical sum of the antioxidant enzyme activity or MDA content of respective constituent extract with their proportion being 1:1 in the combinations.

Table 2. The effect of different active extracts on cell viability, cellular antioxidant enzymes (Cu/Zn-SOD, Mn-SOD, GSH-Px and CAT) activities and MDA content in MRC-5 cells subjected to H2O2-induced oxidative stress.

Table 2. The effect of different active extracts on cell viability, cellular antioxidant enzymes (Cu/Zn-SOD, Mn-SOD, GSH-Px and CAT) activities and MDA content in MRC-5 cells subjected to H₂O₂-induced oxidative stress.