Abstract:
ETHNOPHARMACOLOGICAL RELEVANCE:Chinese herbal preparation of Liu-He-Dan ointment has been adapted for acute pancreatitis in external application for many years in West China. AIM OF THE STUDY:To investigate the effect of acute pancreatitis on the pharmacokinetics of Liu-He-Dan ointment in rats while it was used externally on belly. MATERIALS AND METHODS:Twelve male Sprague-Dawley rats were randomly divided into acute pancreatitis model group (n=6) and normal group as a control (n=6). Chinese herbal Liu-He-Dan ointment was used externally on belly. Emodin, rhein, aloe emodin, physcion and chrysophanol in plasma and pancreas (at 48 h) were detected and quantified by liquid chromatography-tandem mass spectrometry. Amylase in plasma were determined with iodide process. RESULTS:Among the five components, only emodin, aloe emodin and physcion from Liu-He-Dan were detected in plasma and pancreas. The absorption of each component was tended to decrease in acute pancreatitis group after topically management with Liu-He-Dan ointment on rats' abdomen. The T(max), C(max) and area under curve (AUC) of each component were distinctly lower in AP group than those in normal group (p<0.05). However, the T(1/2α) and mean retention time (MRT) of emodin lasted longer in acute pancreatitis group than those in normal group (p<0.05). There was no statistical difference in the MRT of aloe emodin and physcion between the two groups. Emodin could be detected in all rats' pancreas at 48 h in both groups, while its mean pancreatic concentration was higher in acute pancreatitis model group than in normal group (0.91 ± 0.68, 0.41 ± 0.36, respectively). Physcion could be detected in pancreas of most acute pancreatitis models, but not in normal rats. Aloe emodin was found in all pancreas from acute pancreatitis models while only one in normal group. The level of amylase in Liu-He-Dan group was obviously lower than that in the AP model group (p=0.0055). CONCLUSION:We concluded that acute pancreatitis may significantly affect the pharmacokinetics of Liu-He-Dan while external applied on belly, which indicated the dosage modification in AP. However, acute pancreatitis seems to promote the distribution of the detected components into pancreas. The ointment could help relieve the disease of pancreatitis.
journal_name
J Ethnopharmacoljournal_title
Journal of ethnopharmacologyauthors
Zhao XL,Xiang J,Wan MH,Yu Q,Chen WW,Chen GY,Tang WFdoi
10.1016/j.jep.2012.10.036subject
Has Abstractpub_date
2013-01-09 00:00:00pages
94-9issue
1eissn
0378-8741issn
1872-7573pii
S0378-8741(12)00733-7journal_volume
145pub_type
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