Different NaPyr concentrations significantly reversed the CSE-mediated effects, with expression levels of ferroptosis-related proteins Nrf2 and GPX4 exhibiting an increasing trend in a NaPyr concentration-dependent manner (Fig. 4 A and B).
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Sodium pyruvate exerts protective effects against cigarette smoke extract-induced ferroptosis in alveolar and bronchial epithelial cells through the GPX4/Nrf2 axis.
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