ALB and cystic fibrosis: Two principal findings were observed: (1) vitamins A and E, β-carotene, lutein and albumin were significantly lowered in the plasma or serum of people with clinically-stable CF versus non-CF control participants, and (2) protein carbonyls, total 8-iso-PG2α and MDA were significantly higher in the plasma or serum of people with clinically-stable CF versus non-CF control participants.