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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Shikonin ameliorates cerulein-induced acute pancreatitis in mice.
Journal of Ethnopharmacology 2013 January 31
ETHNOPHARMACOLOGICAL RELEVANCE: Shikonin, a highly liposoluble naphthoquinone pigment isolated from the traditional medical herbs Lithospermum erythrorhizon (LE), was considered to exhibit an anti-inflammatory property. While the potential of shikonin to ameliorate acute pancreatitis (AP) is unknown. Our aim was to investigate the effects of shikonin in a murine model of cerulein-induced pancreatitis.
MATERIALS AND METHODS: AP was induced in mice by six intraperitoneal injection of cerulein (50 μg/kg) at hourly intervals. Vehicle or shikonin (50 mg/kg) was pretreated 2 h before the first cerulein injection. After 6 h, 9 h and 12 h of the first cerulein injection, the severity of acute pancreatitis was assessed by biochemistry, myeloperoxidase activity, histological grading, proinflammatory cytokines levels and nuclear factor kappa B (NF-κB) activity.
RESULTS: Shikonin administration significantly reduced serum amylase and lipase activities, pancreatic histological scores, TNF-α, IL-1β, IL-6 levels, MPO activity and NF-κB activity.
CONCLUSION: Taken together, these results suggest that shikonin might protect against experimental pancreatitis by reducing release of inflammatory cytokines via inhibition of NF-κB activity. The therapeutic role of shikonin in AP needs further investigation.
MATERIALS AND METHODS: AP was induced in mice by six intraperitoneal injection of cerulein (50 μg/kg) at hourly intervals. Vehicle or shikonin (50 mg/kg) was pretreated 2 h before the first cerulein injection. After 6 h, 9 h and 12 h of the first cerulein injection, the severity of acute pancreatitis was assessed by biochemistry, myeloperoxidase activity, histological grading, proinflammatory cytokines levels and nuclear factor kappa B (NF-κB) activity.
RESULTS: Shikonin administration significantly reduced serum amylase and lipase activities, pancreatic histological scores, TNF-α, IL-1β, IL-6 levels, MPO activity and NF-κB activity.
CONCLUSION: Taken together, these results suggest that shikonin might protect against experimental pancreatitis by reducing release of inflammatory cytokines via inhibition of NF-κB activity. The therapeutic role of shikonin in AP needs further investigation.
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