SLC7A11 and acute respiratory distress syndrome: The results showed that in the BALF of ARDS patients, Cp was significantly elevated in patients with severe ARDS (p = 0.019), Slc7a11 was significantly elevated in patients with moderate ARDS (p = 0.021), whereas Slc39a14 was not significantly elevated, relative to patients with mild ARDS (Fig. 3).