Table 4. Validation of NA inhibition ability for small molecules.

	Concentration (μg/ml)	Mean CPE ± S.D.	ER(%)	Mean fluorescence intensity (A.U ± S.D.)
Chlorogenic acid	50	2.00 ± 0.00***	52.7***	2.25 ± 0.39***
	25	2.25 ± 0.50***	43.8***	3.31 ± 0.25***
	12.5	3.00 ± 0.50**	25.6**	4.11 ± 0.32***
	6.25	3.33 ± 0.50*	17.8*	4.43 ± 0.38***
	3.125	3.67 ± 0.58	10.2	4.75 ± 0.45**
	1.563	4.00 ± 0.00	5.3	5.67 ± 0.57
Quercetin	50	1.67 ± 0.00***	59.3***	1.74 ± 0.16***
	25	2.00 ± 0.00***	50.6***	2.67 ± 0.20***
	12.5	2.33 ± 0.58***	41.5**	3.50 ± 0.26***
	6.25	3.00 ± 0.00**	26.3**	4.34 ± 0.31***
	3.125	3.33 ± 0.58*	19.4*	4.63 ± 0.41***
	1.563	3.33 ± 0.58*	17.7*	5.48 ± 0.52*
Zanamvir	50	0.00 ± 0.00***	87.3***	1.24 ± 0.11***
	25	0.00 ± 0.00***	84.1***	1.73 ± 0.15***
	12.5	0.67 ± 0.58***	79.6***	2.20 ± 0.25***
	6.25	1.25 ± 0.50***	68.8***	3.27 ± 0.29***
	3.125	2.67 ± 0.58***	35.3**	3.34 ± 0.40***
	1.563	2.75 ± 0.50**	31.7**	5.35 ± 0.48**
Placebo	–	4.00 ± 0.00	–	7.54 ± 0.61
Normal	–	0.00 ± 0.00	–	1.71 ± 0.14

*p < 0.05, **p < 0.01, ***p < 0.001, the values were compared with placebo controls.