Abstract
To investigate the chemical constituents of fruits of wild species of Crataegus scabrifolia and their lipid-lowering activities. The compounds were isolated and purified by various column chromatography, and their structures were identified based on the comprehensive analyses of the physicochemical properties and spectroscopic data. The lipid-lowering activities of isolated compounds were evaluated by a cellular model of HepG2 in vitro. Ten triterpenoids were obtained from the 95% ethanol extract of the fruits of wild species of C. scabrifolia and identified as α-amyrin (I), ursolic acid (II), pomolic acid (III), tormentic acid (IV), euscaphic acid (V), 2α,19α-dihydroxy-3-oxo-urs-12-en-28-oic acid (VI), fupenzic acid (VII), oleanolic acid (VIII), β-amyrin (IX), and 3-epifriedelinol (X). Compounds (I), (IX), and (X) were isolated from the genus Crataegus for the first time, and compounds (III−VIII) were isolated from the C. scabrifolia for the first time. Compounds (V‒VII) showed significant lipid-lowering activities in vitro with lipid-lowering rates of 8.9 ± 4.3%, 12.0 ± 4.6%, and 6.5 ± 5.5% at a concentration of 200 μmol/L. Molecular docking results suggested that the ACC may be a target of lipid-lowering activity for Crataegus triterpenoids.
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Funding
The work was financially supported by the Special Basic Cooperative Research Programs of Yunnan Provincial Undergraduate Universities’ Association (grant no. 2019FH001-050), the Yunnan Key Laboratory of Screening and Research on Anti-pathogenic Plant Resources from Western Yunnan (grant no. 202105AG070003), the Yunnan Fundamental Research Projects (grant no. 202201AT070005), and the Scientific Research Initiation Fund of Dali University for Doctor (grant no. KYBS201734).
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Chao-Jiang Xiao and Bei Jiang conceptualized the work. Material preparation, extraction and isolation were performed by Qi-Jie Zhu, Ying Wang, and De-Quan Zhang. Biological activity assay was performed by Li-Juan Lang. Molecular docking and the draft of the manuscript were done by Chao-Jiang Xiao.
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Qi-Jie Zhu, Lang, LJ., Wang, Y. et al. Triterpenoids from the Fruits of Wild Species of Crataegus scabrifolia and Their Lipid-Lowering Activities. Russ J Bioorg Chem 48, 1291–1298 (2022). https://doi.org/10.1134/S1068162022060292
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DOI: https://doi.org/10.1134/S1068162022060292