Chemical constituents from the stems and leaves of Amomum villosum Lour. and their anti-inflammatory and antioxidant activities.
Bioorganic chemistry(2022)
Abstract
Amomum villosum Lour. is a medicinal and edible plant, whose medicinal parts are dried and mature fruits, and its stems and leaves are always treated as waste. HPLC-MS/MS analysis showed that the chemical components contained in the stems/leaves of A. villosum and those in fruits are quite different. To discover potential active ingredients from the stems/leaves of A. villosum, phytochemical evaluation of the stems/leaves of A. villosum was conducted to isolate and identify-four undescribed compounds (1, 2a, 2b, and 3) along with 41 known ones (4a, 4b, 5a, 5b, and 6-42). All isolated compounds were assessed for their anti-inflammatory and antioxidant activities. Among them, compounds 5b, 33, 34, and 38 exhibited anti-inflammatory activity, and compounds 1, 4a, 4b, 6, 7, 15, 33, 35, 37, and 41 showed antioxidant effects. Among them, the new compound 1 showed a significant antioxidant effect via activation of NRF2/HO-1 pathways. Therefore, the leaves and stems of A. villosum may be served as a potential medicine or dietary supplement for preventing and treating diseases resulting from inflammation and oxidative stress.
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Key words
Amomum villosum Lour,HPLC-MS,MS,Anti-inflammatory,Antioxidant,NRF2,HO-1
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