Page 58 - 《广西植物》2025年第10期
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1 7 8 8 广 西 植 物 45 卷
1ꎬ2 2ꎬ3 2ꎬ4 2 2 2
LI Jing ꎬ ZOU Biqun ꎬ ZENG Siwen ꎬ WANG Yafeng ꎬ YANG Bingyuan ꎬ LI Guiqin ꎬ
2 2 2 1 2∗ 1ꎬ4∗
LIU Zhangbin ꎬ HUANG Yonglin ꎬ GUO Lunfa ꎬ GE Li ꎬ HE Ruijie ꎬ YANG Kedi
( 1. Medical Collegeꎬ Guangxi Universityꎬ Nanning 530004ꎬ Chinaꎻ 2. Guangxi Key Laboratory of Functional Phytochemicals and Continuous
Utilization of Resourcesꎬ Guangxi Institute of Botanyꎬ Guangxi Zhuang Autonomous Region and Chinese Academy of Sciencesꎬ Guilin 541006ꎬ
Guangxiꎬ Chinaꎻ 3. Department of Chemistry and Pharmaceutical Scienceꎬ Guilin Normal Collegeꎬ Guilin 541199ꎬ Guangxiꎬ Chinaꎻ
4. School of Chemistry & Chemical Engineeringꎬ Guangxi Universityꎬ Nanning 530004ꎬ China )
Abstract: To investigate the chemical constituents of Melastoma normale roots and their ant ̄inflammatory activitiesꎬ the
ethanol extracts of M. normale roots were isolated using techniques such as Sephadex LH ̄20 column chromatography and
RP ̄HPLC. The structures of obtained compounds were determined using a comprehensive analysis of NMR and
HRESIMS data. Additionallyꎬ the anti ̄inflammatory activity of the compound was evaluated by inducing the release of
nitric oxide in RAW 264.7 cells using lipopolysaccharide ( LPS). The results were as follows: (1) A total of 19
compounds were isolated and identified as 1ꎬ6 ̄di ̄O ̄galloyl ̄β ̄D ̄glucose (1)ꎬ syringylglycerol ̄9 ̄O ̄β ̄D ̄glucopyranoside
(2)ꎬ epicatechin gallate (3)ꎬ gentisic acid 5 ̄O ̄β ̄D ̄glucoside (4)ꎬ myricetin 3 ̄O ̄β ̄D ̄glucopyranoside (5)ꎬ 6 ̄O ̄
galloylglucose (6)ꎬ 3 ̄O ̄methylellagic acid 4′ ̄O ̄rhamnopyranoside (7)ꎬ ellagic acid 3ꎬ3′ꎬ4 ̄trimethoxy 4′ ̄O ̄α ̄L ̄
rhamnopyranoside ( 8 )ꎬ 3ꎬ 3′ꎬ 4 ̄tri ̄O ̄methyl ̄4′ ̄O ̄rutinosylellagicacid ( 9 )ꎬ 3ꎬ 3′ ̄di ̄O ̄methylellagic acid ̄4′ ̄O ̄
glucoside ( 10 )ꎬ 3ꎬ 4 ̄dihydroxybenzoicacid ( 11 )ꎬ 3ꎬ 4 ̄dihydroxybenzaldehyde ( 12 )ꎬ β ̄D ̄
glucopyranosyloxyphenylacetoniwile (13)ꎬ 1 ̄O ̄benzoyl ̄myo ̄inositol (14)ꎬ 2α ̄hydroxyursolic acid (15)ꎬ ursolic acid
(16)ꎬ friedelin (17)ꎬ α ̄amyrin (18)ꎬ and harprogenin ̄28 ̄β ̄D ̄glucopyranosylester (19). Except for compounds 6ꎬ
10ꎬ 18ꎬ all others were obtained from this plant for the first time. (2) Compound 12 exhibited a significant inhibitory
 ̄1
effect on LPS inducing NO release in RAW 264.7 cells with an IC value of 18.2 μmol L . This finding provides a
50
scientific basis for further research on the anti ̄inflammatory effect of M. normale.
Key words: Melastoma normale rootsꎬ Melastoma L.ꎬ nitric oxide inhibitory activitiesꎬ chemical constituentsꎬ
structural identification
炎症是组织对感染或损伤的保护性反应ꎬ在 等 地 ( 中 国 科 学 院 中 国 植 物 志 编 辑 委 员 会ꎬ
这个过程中ꎬ一氧化氮( NO) 被认为是一个关键的 1984)ꎬ其干燥的根即为瑶药“羊开口”ꎮ 该药材性
调节因子ꎬ其过量的产生会导致关节炎、肿瘤、心 温ꎬ味甘、酸、涩ꎬ具有收敛、止血、解毒的功效ꎬ在
脑血管疾病等诸多疾病的发生( Shi et al.ꎬ2024)ꎮ 民间常用于治疗淋症、痈肿、疮疡溃烂等病症( 广
目前ꎬ临床上常用的抗炎药物主要包括非甾体抗 西壮族自治区食品药品监督管理局ꎬ 2014ꎻ黄瑞
炎药(NSAIDs) 和糖皮质激素ꎬ但这些药物长期使 松ꎬ 2015)ꎬ在临床上主要用于急性胃肠炎、子宫
用会带来严重的副作用ꎬ如胃肠道损伤、免疫抑制 颈炎、肾盂肾炎、泌尿系统感染等疾病的治疗( 蒋
等ꎮ 因此ꎬ开发新型、高效、低毒的抗炎药物具有 受军等ꎬ2010)ꎮ 目前关于羊开口化学成分的研究
重要的临床意义ꎮ 植物代谢产物由于其结构的多 报道较少ꎬ报道的化学成分主要包括萜类、甾醇
样性和药理活性的广泛性ꎬ是诞生药物或发现先 类、鞣花酸类、没食子酸类等 ( 邹节明等ꎬ2011ꎻ唐
导化合物的重要来源ꎮ 铁鑫等ꎬ2016ꎻ王春姑ꎬ2018ꎻZheng et al.ꎬ2021)ꎬ
野牡丹科( Melastomaceae) 野牡丹属植物在全 这些成分通常显示出良好的抗炎、抗肿瘤、抗菌等
世界约有 100 种ꎬ主要分布在亚洲南部至大洋洲 药理活性(王春姑ꎬ 2018ꎻZheng et al.ꎬ 2021)ꎮ 基
北部以及太平洋诸岛ꎮ 该属植物的化学成分主要 于羊开口被广泛应用于炎症相关疾病的治疗ꎬ本
包括黄酮、单宁、有机酸( 酯)、萜类等ꎬ具有抗炎、 文在前期研究基础上( He et al.ꎬ 2021)ꎬ采用现代
抗菌、抗氧化、保肝、降血糖等活性( Zheng et al.ꎬ 分离技术和波谱学方法对羊开口乙醇提取物中的
2021)ꎮ 展毛野牡丹(Melastoma normale)为该属植 化学成分进行分离鉴定ꎬ并用脂多糖( LPS) 诱导
物之一ꎬ广泛分布于广西、广东、云南、四川、台湾 RAW 264.7 细胞释放 NO 模型评价化合物的抗炎

