Antioxidant enzymatic activities.

<p>Comparison between <i>Cftr</i>^+/+ and <i>Cftr</i>^−/− mice of SOD (A), GPx (B) and CAT (C) activities in lung homogenates. Enzymatic activities were measured by standard spectrophotometric methods. Lung homogenates from <i>Cftr</i>^−/− mice displayed significantly higher SOD and GPx activities than those from <i>Cftr</i>^+/+ mice. Both <i>Cftr</i>^+/+ and <i>Cftr</i>^−/− mice displayed a similar level of CAT activity. Values are presented as specific activity (mean±S.E., n = 5, in duplicate). * P≤0.05