Parainfluenza Virus Type 1 Induces Epithelial IL-8 Production via p38-MAPK Signalling

Table 1

IL-8 secretion (pg/mL) in HEp-2 and A549 cells infected with live and inactive virus.

Time	HEp-2 live virus	A549 live virus	HEp-2 inactive virus	A549 inactive virus	SD	SEM	Chi square	𝑃	CV
Uninfected cells	0.004^a	0.001^a	0.002^a	0.027^a	0.018	0.005	3.71	0.29	207.49
30′	39.01^b	47.04^a	0.02^c	0.06^c	22.65	6.54	10.38	0.01	105.16
45′	55.03^b	62.11^a	0.03^c	0.03^c	30.69	8.86	9.35	0.02	104.74
60′	104.15^a	92.72^b	0.01^c	0.04^c	51.57	14.89	10.38	0.01	104.74
90′	132.38^a	135.07^a	1.33^b	1.00^b	69.24	19.99	9.46	0.02	102.65
120′	210.08^a	201.72^b	0.02^c	0.01^c	107.56	31.05	9.35	0.02	104.47
12 hours	265.72^a	239.84^b	0.01^c	0.01^c	132.36	38.21	9.43	0.02	104.71
24 hours	145.06^a	129.30^b	2.05^c	2.00^c	70.83	20.45	9.46	0.02	101.74

a,b,cMeans with no common superscript in a row differ (𝑃<0.05). SD: standard deviation; SEM: standard error of the mean; 𝑃: probability value; CV: coefficient of variation.