Table 3. The correlative results of dehydrosilymarin powders and dehydrosilymarin-loaded proliposomes in vitro and in vivo (Checked the critical value table for r, when the degree of freedom v was 8, critical value r_{8, 0.05}=0.632, which showed the correlation coefficients of regression equations of drugs r>r_{8, 0.05}).

Formulation type	t (h)	0.25	0.5	1	2	3	4	6	8	10	12	r
Powders	Fr (%)	3.67	5.81	9.58	11.73	13.76	15.22	16.31	18.24	19.67	20.17	0.9886
in pH 1.2	Fa (%)	41.59	58.40	63.18	72.34	78.32	83.56	89.04	92.90	94.36	100.0
Proliposomes	Fr (%)	2.30	2.40	2.51	2.67	3.19	3.71	3.85	4.38	4.46	5.22	0.9594
in pH 1.2	Fa (%)	25.33	40.12	40.76	44.57	46.84	51.29	61.89	81.08	91.19	100.0
Powders	Fr (%)	4.81	5.61	7.99	12.46	19.96	26.15	33.00	40.83	44.66	48.04	0.9362
in pH 6.8	Fa (%)	41.59	58.40	63.18	72.34	78.32	83.56	89.04	92.90	94.36	100.0
Proliposomes	Fr (%)	10.75	17.15	20.73	26.68	34.97	39.57	54.02	70.65	80.08	86.41	0.9887
in pH 6.8	Fa (%)	25.33	40.12	40.76	44.57	46.84	51.29	61.89	81.08	91.19	100.0