Oxygen toxicity
[Ref: TF8-p182]
retrolental fibroplasia
bronchopulmonary dysplasia in neonates
loss of hypoxic drive in COPD
tracheobronchial irritation
thickening of alveolar-capillary membrane with proliferation of type I pneumocytes
Mechanism: superoxide anions and hydroxyl free radicals
Defence: superoxide dismutase (SOD) for superoxide anions
catalase (CAT) for H2O2