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Phytochemical and Biological Investigation of Helianthemum nummularium, a High-Altitude Growing Alpine Plant Overrepresented in Ungulates Diets
Planta Medica ( IF 2.1 ) Pub Date : 2020-07-09 , DOI: 10.1055/a-1197-2898
Mathieu Agostini 1 , Isabelle Hininger-Favier 2, 3 , Laurence Marcourt 4 , Benjamin Boucherle 1 , Bifeng Gao 3, 5 , Brooks M Hybertson 5 , Swapan K Bose 5 , Joe M McCord 5 , Annie Millery 6 , Maxime Rome 7 , Emerson Ferreira Queiroz 4 , Jean-Luc Wolfender 4 , Christiane Gallet 6 , Ahcène Boumendjel 1
Affiliation  

Helianthemum nummularium is a European shrub growing at high altitude where it copes with a high level of stress. It was found to be overexpressed in ungulates diets compared to more abundant surrounding plants. These elements combined with the fact that H. nummularium from the Alps has never been investigated prompted us to study the phytochemical composition of its aerial parts. The analysis of the polar extract allowed for the isolation of eight compounds: p-hydroxybenzoic acid, tiliroside, kaempferol, astragalin, quercetin, plantainoside B, quercetin-3-O-glucoside, and quercetin-3-O-glucuronide. We investigated the effect of the polar extract and isolated compounds on nuclear factor erythroid 2-related factor 2 transcription factor, which regulates the expression of a wide variety of cytoprotective genes. We found that the ethanolic extract activates the expression of nuclear factor erythroid 2-related factor 2 in a dose-dependent manner, whereas the pure compounds were much less active. The activation of the nuclear factor erythroid 2-related factor 2 pathway by the plant extract could pave the way for studies to promote healthy aging through protection of cells against oxidative stress. Moreover, the isolated compounds could be investigated alone or in combination in the perspective of making the link between the ungulate's preference for this plant and possible use of it for self-medication.

中文翻译:

Helianthemum nummularium 的植物化学和生物学研究,一种高海拔生长的高山植物,在有蹄类食物中含量过高

Helianthemum nummularium 是一种生长在高海拔地区的欧洲灌木,可以应对高水平的压力。发现与更丰富的周围植物相比,它在有蹄类动物的饮食中过度表达。这些元素与来自阿尔卑斯山的 H. nummularium 从未被研究过的事实相结合,促使我们研究其地上部分的植物化学成分。极性提取物的分析允许分离八种化合物:对羟基苯甲酸、tiliroside、山奈酚、黄芪甲苷、槲皮素、大蕉苷 B、槲皮素-3-O-葡萄糖苷和槲皮素-3-O-葡萄糖醛酸。我们研究了极性提取物和分离的化合物对核因子红细胞 2 相关因子 2 转录因子的影响,该因子调节多种细胞保护基因的表达。我们发现乙醇提取物以剂量依赖性方式激活核因子红细胞 2 相关因子 2 的表达,而纯化合物的活性要低得多。植物提取物激活核因子红细胞 2 相关因子 2 通路可以为通过保护细胞免受氧化应激促进健康衰老的研究铺平道路。此外,从有蹄类动物对这种植物的偏好与可能将其用于自我治疗之间建立联系的角度来看,可以单独或组合研究分离的化合物。植物提取物激活核因子红细胞 2 相关因子 2 通路可以为通过保护细胞免受氧化应激促进健康衰老的研究铺平道路。此外,从有蹄类动物对这种植物的偏好与可能将其用于自我治疗之间建立联系的角度来看,可以单独或组合研究分离的化合物。植物提取物激活核因子红细胞 2 相关因子 2 通路可以为通过保护细胞免受氧化应激促进健康衰老的研究铺平道路。此外,从有蹄类动物对这种植物的偏好与可能将其用于自我治疗之间建立联系的角度来看,可以单独或组合研究分离的化合物。
更新日期:2020-07-09
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