Presence of nanosilica (E551) in commercial food products: TNF-mediated oxidative stress and altered cell cycle progression in human lung fibroblast cells.
Riyadh, Saudi Arabia. In Cell Biol Toxicol, 14 Mar 2014
The effects of E551 on human lung fibroblast cell viability, intracellular ROS levels, cell cycle phase, and the expression levels of metabolic stress-responsive genes (CAT, GSTA4, TNF, CYP1A, POR, SOD1, GSTM3, GPX1, and GSR1) were studied.
Short-term calorie restriction feminizes the mRNA profiles of drug metabolizing enzymes and transporters in livers of mice.
Kansas City, United States. In Toxicol Appl Pharmacol, Feb 2014
CR up-regulated some phase-I enzymes (fold increase), such as Cyp4a14 (12), Por (2.3), Nqo1 (1.4), Fmo2 (5.4), and Fmo3 (346), and numerous number of phase-II enzymes, such as Sult1a1 (1.2), Sult1d1 (2.0), Sult1e1 (33), Sult3a1 (2.2), Gsta4 (1.3), Gstm2 (1.3), Gstm3 (1.7), and Mgst3 (2.2).
Genetic variants of glutathione S-transferase as possible risk factors for hepatocellular carcinoma: a HuGE systematic review and meta-analysis.
Houston, United States. In Am J Epidemiol, 2008
Fifteen eligible studies were identified: 14 evaluated GSTM1; 13, GSTT1; three, GSTP1; and one each evaluated GSTM2, GSTM3, GSTA1, GSTA4, GSTO1, and GSTO2, respectively.
Dundee, United Kingdom. In Annu Rev Pharmacol Toxicol, 2004
Furthermore, knockout of mouse GSTA4 and GSTZ1 leads to overexpression of transferases in the Alpha, Mu, and Pi classes, an observation suggesting they are part of an adaptive mechanism that responds to endogenous chemical cues such as 4-hydroxynonenal and tyrosine degradation products.