Derivatives of 6-Nitrobenzimidazole Inhibit Fructose-Mediated Protein Glycation and Intracellular Reactive Oxygen Species Production

2017 ◽  
Vol 13 (6) ◽  
Author(s):  
Humera Jahan ◽  
Muhammad I. Choudhary ◽  
Zarbad Shah ◽  
Khalid M. Khan ◽  
Atta-ur-Rahman
2012 ◽  
Vol 74 (2) ◽  
pp. 221-225 ◽  
Author(s):  
Fernando Nogueira de SOUZA ◽  
Maiara Garcia BLAGITZ ◽  
Andréia Oliveira LATORRE ◽  
Eduardo Milton RAMOS SANCHEZ ◽  
Camila Freitas BATISTA ◽  
...  

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Chong Zhao ◽  
Takenori Sakaguchi ◽  
Kosuke Fujita ◽  
Hideyuki Ito ◽  
Norihisa Nishida ◽  
...  

Pomegranate-derived polyphenols are expected to prevent life-style related diseases. In this study, we evaluated the ability of 8 pomegranate-derived polyphenols, along with other polyphenols, to augment SIRT3, a mammalian SIR2 homolog localized in mitochondria. We established a system for screening foods/food ingredients that augment the SIRT3 promoter in Caco-2 cells and identified 3 SIRT3-augmenting pomegranate-derived polyphenols (eucalbanin B, pomegraniin A, and eucarpanin T1). Among them, pomegraniin A activated superoxide dismutase 2 (SOD2) through SIRT3-mediated deacetylation, thereby reducing intracellular reactive oxygen species. The other SIRT3-augmenting polyphenols tested also activated SOD2, suggesting antioxidant activity. Our findings clarify the underlying mechanisms involved in the antioxidant activity of pomegraniin A.


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