in Liquamen (BCL), which is extracted from heat-treated fresh bamboo stems, is a traditional herbal medicine widely used in Eastern countries. Recently, it has been reported to have anti-inflammatory and whitening effects. However, the protective effect of BCL on hepatocytes has not yet been elucidated. The present study aimed to determine whether BCL prevents oxidative stress induced by tert-butyl hydroperoxide (t-BHP) and exerts cytoprotective effects on hepatocytes. High-performance liquid chromatography and liquid chromatography with tandem mass spectroscopy were performed to analyze the type of polyphenols present in BCL. The activities of antioxidant enzymes and hepatocyte viability were assessed. The benzoic acid content was the highest among polyphenols present in BCL. Benzoic acid acts as a scavenger of free radicals, including reactive oxygen species. BCL increased the expression of antioxidant enzymes (glutamate-cysteine ligase and NADPH quinone dehydrogenase (1)) by activating nuclear factor erythroid 2-related factor 2 and reduced tBHP-induced cell death by inhibiting oxidative stress. BCL inhibited tBHP-induced phosphorylation of p38 and c-Jun N-terminal kinase but not that of extracellular signal-regulated kinase. In conclusion, BCL is a promising therapeutic candidate for treating oxidative-stress-induced hepatocyte damage.
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| http://dx.doi.org/10.3390/molecules28155862 | DOI Listing |
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