05 Jun 2014 Blackmores Institute Vitamin E isoforms have opposing effects on lung function 05 Jun 2014 Share Share on LinkedIn Share on Facebook Share on Twitter Share on Google+ Share on Pinterest News Two forms of vitamin E have opposing effects on respiratory function, recent research shows, with one being protective and the other promoting lung inflammation and airway hyperresponsiveness. The Coronary Artery Risk Development in Young Adults (CARDIA) study, published in the journal Respiratory Research found that the vitamin E isoform α-tocopherol is positively linked to spirometric parameters (1) × To continue reading this article, please Log In or Sign Up for access.