Abstract
Impacts of berberine, a major isoquinoline alkaloid in herbal plants, on beta-naphthoflavone (BNF)-induced CYP1A expression were determined both in primary mouse hepatocytes and in vivo. Berberine concentration-dependently suppressed BNF-induced CYP1A expression in mouse hepatocyte and it significantly down-regulated BNF-induced CYP1A in mouse liver via suppression of mRNA and protein expression, and decreases of EROD and MROD activities. Moreover, berberine showed significant potential on suppression of BNF-induced lipid peroxidation in mouse hepatic microsome. Therefore, using berberine as a health supplement or an alternative medication might provide extra-benefit due to its inhibitory regulation on CYP1A expression and anti-lipid peroxidation activity.
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