. 2011 Dec 19;6(12):e29144. doi: 10.1371/journal.pone.0029144

Table 2. Condensed chromatin area and chromatin textural contrast in 0.05 mM VPA- treated HeLa cells.

Treatment		Sc%			AAR
time (h)	Drug	X	S	Md	X	S	Md
1	Untreated control	69.17	10.13	70.77^a	1.27	0.09	1.26^a
	VPA	36.33	25.04	38.22^b	1.40	0.17	1.37^b
2	Untreated control	68.53	14.52	70.65^a	1.25	0.08	1.24^a
	VPA	37.29	22.07	36.85^b	1.44	0.16	1.42^b
4	Untreated control	60.15	13.17	60.86^a	1.36	0.14	1.35^a
	VPA	33.43	20.81	31.25^b	1.40	0.15	1.38^b
24	Untreated control	57.75	14.84	59.91^a	1.35	0.14	1.32^a
	VPA	38.76	18.96	40.84^b	1.40	0.11	1.39^b

^a,b

, The median values of the VPA group and the respective control for each treatment time differ significantly from each other at the P _0.05 level (Mann-Whitney test); AAR, average absorption ratio; Md, median; S, standard deviation; Sc %, relative condensed chromatin area; VPA, valproic acid; X, arithmetic mean; n, 200