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1.
Article in Chinese | WPRIM | ID: wpr-492724

ABSTRACT

Objective To study the in situ intestinal absorption behaviors of 3,29-dibenzoyl-karounitriol(DK)in Gualou-Xiebai(GX)extract in rats. Methods A rat in situ single-pass perfusion model was used and the concentrations of the perfusate were determined by HPLC-PDAD to investigate the intestinal absorption site and mechanism. Results The main absorption site of DK in GX extract was jejunum,ileum and colon,and the absorption had no significant difference in the three different segments of rat intes?tine(P>0.05),but was significantly higher than that in duodenum(P0.05). Conclusion DK in GX extract could be absorbed in whole intestinal segment,with the best intestinal absorption site of jejunum,ileum and colon. Its absorbing mechanism may be related to passive diffusion.

2.
Article in Chinese | WPRIM | ID: wpr-845558

ABSTRACT

Objective To study the in situ intestinal absorption behaviors of 3, 29- dibenzoyl- karounitriol (DK) in Gualou- Xiebai (GX) extract in rats. Methods A rat in situ single-pass perfusion model was used and the concentrations of the perfusate were determined by HPLC-PDAD to investigate the intestinal absorption site and mechanism. Results The main absorption site of DK in GX extract was jejunum, ileum and colon, and the absorption had no significant difference in the three different segments of rat intestine (P>0.05), but was significantly higher than that in duodenum (P0.05). Conclusion DK in GX extract could be absorbed in whole intestinal segment, with the best intestinal absorption site of jejunum, ileum and colon. Its absorbing mechanism may be related to passive diffusion.

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