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- W2077560052 abstract "Aim: This work aims to study the regulation of the glutathione peroxidase and catalase activities in myoblasts from the L6 line exposed to 21%, 5% and 1% O2 during the cell differentiation. Material and Methods: Rat L6 myoblasts were grown in 1%, 5% or 21% O2 in the presence or absence of N-acetyl cysteine. The cell proliferation was evaluated by determining the doubling time and kinetics of cultures by counting cells. The cell differentiation was analyzed by determining the myogenic fusion index using antibodies against the myosin heavy chain. The glutathione peroxidase and catalase activities were assayed. The p110-PI3K/Thr308-Akt pathway was studied using western blotting. The oxidative status of the cells was carried out by determining TBARS. Results:5% O2 improves the glutathione peroxidase activity, p110-PI3K/Thr308-Akt pathway and differentiation while 1% O2 alters all these parameters compared to 21% O2. NAC (0.5 mM) can prevent the deleterious effects of hypoxia (1% O2) on the L6 myoblast proliferation and enhances the myoblast differentiation when exposed to 21% O2. TBARS are reduced in 5% O2 compared to both 21% and 1% O2. Conclusion: The glutathione peroxidase activity and p110-PI3K/Thr308-Akt are both modulated in the same way by oxygen." @default.
- W2077560052 created "2016-06-24" @default.
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- W2077560052 date "2014-01-01" @default.
- W2077560052 modified "2023-10-12" @default.
- W2077560052 title "Oxygen Modulates the Glutathione Peroxidase Activity during the L6 Myoblast Early Differentiation Process" @default.
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- W2077560052 doi "https://doi.org/10.1159/000356650" @default.
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