Relationship between single nucleotide polymorphism in TNF-α gene promoter region and inibitory effects of triptolide on TNF-α production in peripheral blood mononuclear cells of healthy humans

Author(s):  
Tu Shenghao ◽  
Chen Hongbo ◽  
Sheng Dongyun ◽  
Hu Yonghong ◽  
Liu Peilin

2012 ◽  
pp. 655-658 ◽  
Author(s):  
A. V. KOMINA ◽  
K. A. KOROSTILEVA ◽  
S. N. GYRYLOVA ◽  
R. N. BELONOGOV ◽  
T. G. RUKSHA

Catalase is an antioxidant enzyme the activity of which is crucial for the protection against damage caused by reactive oxygen species. The –262C>T polymorphism in the promoter region of catalase gene was found to be associated with altered catalase levels. In this study, peripheral blood mononuclear cells catalase activity was measured after H2O2-induced oxidative stress. C/T and T/T genotypes were associated with the decrease of catalase levels in contrast to C/C donors who had elevated catalase activity in the presence of 0.4 and 0.7 mM H2O2. Genotype-dependent response of catalase activity to oxidative stress might be related to the predisposition of catalase mutant allele carriers to disorders mediated by oxidative stress.







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