Antioxidant and prooxidant roles for beta-carotene, alpha-tocopherol and ascorbic acid in human lung cells.

Abstract

Experiments were conducted to determine the antioxidant and prooxidant effects of beta-carotene, alpha-tocopherol and ascorbic acid on human lung cells at different oxygen (O(2)) tensions. Free radical initiator, 2,2'-azobis (2-amidinopropane) dihydrochloride (AAPH), was used to induce the cellular damage associated with lipid peroxidation, protein… (More)

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