The absorption kinetics of silymarin microemulsion in rat intestine / 药学学报
Acta Pharmaceutica Sinica
;
(12): 631-634, 2004.
Article
in Chinese
| WPRIM
| ID: wpr-302747
ABSTRACT
<p><b>AIM</b>To survey the morphology and size distribution of silymarin microemulsion, to investigate the absorption of silymarin microemulsion in rat intestine compared with the absorption of silymarin micelle in rat Jejunum.</p><p><b>METHODS</b>The intestine in rats was canulated for in situ recirculation.</p><p><b>RESULTS</b>The absorption rate constants (Ka) of silymarin microemulsion at the entire intestine, ileum jejunum, duodenum and colon were 6.22 x 10(-2), 2.27 x 10(-2), 1.9 x 10(-2), 1.9 x 10(-2), 1.05 x 10(-2) and 0.43 x 10(-2) h(-1), respectively. The absorption rate constants of two kinds of silymarin micelle at jejunum were 0.36 x 10(-2), 0.65 x 10(-2) h(-1).</p><p><b>CONCLUSION</b>Silymarin microemulsion was well absorbed at the middle and lower segments of intestine in rats. The absorption was a first-order process with the passive diffusion mechanism.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Particle Size
/
Silymarin
/
Pharmacokinetics
/
Rats, Sprague-Dawley
/
Colon
/
Duodenum
/
Emulsions
/
Ileum
/
Intestinal Absorption
/
Jejunum
Limits:
Animals
Language:
Chinese
Journal:
Acta Pharmaceutica Sinica
Year:
2004
Type:
Article
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