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Synergy of the Inhibitory Action of Polyphenols Plus Vitamin C on Amyloid Fibril Formation: Case Study of Human Stefin B
Antioxidants ( IF 6.0 ) Pub Date : 2021-09-15 , DOI: 10.3390/antiox10091471
Alma Jahić Mujkić 1, 2 , Magda Tušek Žnidarič 3 , Selma Berbić 2 , Eva Žerovnik 1, 4
Affiliation  

In order to study how polyphenols and vitamin C (vitC) together affect protein aggregation to amyloid fibrils, we performed similar in vitro studies as before using stefin B as a model and a potentially amyloid-forming protein (it aggregates upon overexpression, under stressful conditions and some progressive myoclonus epilepsy of tape 1—EPM1-missense mutations). In addition to the chosen polyphenol, this time, we added a proven antioxidant concentration of 0.5 mM vitC into the fibrillation mixture and varied concentrations of resveratrol, quercetin, and curcumin. Synergy with vitC was observed with curcumin and quercetin.

中文翻译:


多酚和维生素 C 对淀粉样原纤维形成的抑制作用的协同作用:人 Stefin B 的案例研究



为了研究多酚和维生素 C (vitC) 共同如何影响蛋白质聚集成淀粉样原纤维,我们使用 stefin B 作为模型和潜在的淀粉样蛋白形成蛋白(在压力条件下过度表达时聚集)进行了与之前类似的体外研究和一些磁带1-EPM1-错义突变的进行性肌阵挛癫痫)。除了所选的多酚之外,这次我们还在纤颤混合物中添加了经过验证的抗氧化剂浓度 0.5 mM vitC 以及不同浓度的白藜芦醇、槲皮素和姜黄素。观察到姜黄素和槲皮素与 vitC 的协同作用。
更新日期:2021-09-15
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