With the intensification of population aging, aging-related diseases are attracting more and more attention, thus, the study of aging mechanisms and anti-aging drugs is becoming increasingly urgent. Resveratrol is a potential candidate as an anti-aging agent, but its low bioavailability limits its application in vivo. In this work, a 4-hydroxy-3′-trifluoromethoxy-substituted resveratrol derivative (4–6), owing to its superior cell accumulation, could inhibit NO production in an inflammatory cell model, inhibit oxidative cytotoxicity, and reduce ROS accumulation and the population of apoptotic cells in an oxidative stress cell model. In D-galactose (D-gal)-stimulated aging mice, 4–6 could reverse liver and kidney damage; protect the serum, brain, and liver against oxidative stress; and increase the body’s immunity in the spleen. Further D-gal-induced brain aging studies showed that 4–6 could improve the pathological changes in the hippocampus and the dysfunction of the cholinergic system. Moreover, protein expression related to aging, oxidative stress, and apoptosis in the brain tissue homogenate measured via Western blotting also showed that 4–6 could ameliorate brain aging by protecting against oxidative stress and reducing apoptosis. This work revealed that meta-trifluoromethoxy substituted 4–6 deserved to be further investigated as an effective anti-aging candidate drug.
随着人口老龄化的加剧,与衰老相关的疾病越来越受到人们的关注,因此,对衰老机制和抗衰老药物的研究日益迫切。白藜芦醇是一种潜在的候选抗衰老药物,但其较低的生物利用度限制了其在体内的应用。在这项工作中,4-羟基-3′-三氟甲氧基取代的白藜芦醇衍生物(4-6)由于其优异的细胞蓄积性,可以在炎症细胞模型中抑制 NO 的产生,在氧化应激细胞模型中抑制氧化细胞毒性,减少 ROS 的蓄积和凋亡细胞的数量。在 D-半乳糖(D-gal)刺激的衰老小鼠中,4-6 可以逆转肝脏和肾脏损伤,保护血清、大脑和肝脏免受氧化应激,并提高脾脏的机体免疫力。进一步的 D-gal 诱导脑衰老研究表明,4-6 能改善海马的病理变化和胆碱能系统的功能障碍。此外,通过 Western 印迹法测定脑组织匀浆中与衰老、氧化应激和细胞凋亡有关的蛋白质表达也表明,4-6 可通过防止氧化应激和减少细胞凋亡来改善脑衰老。这项工作揭示了元三氟甲氧基取代的 4-6 作为一种有效的抗衰老候选药物值得进一步研究。