Prevention of exercise-induced asthma by a natural isomer mixture of beta-carotene.

@article{Neuman1999PreventionOE,
  title={Prevention of exercise-induced asthma by a natural isomer mixture of beta-carotene.},
  author={Ittai Neuman and Hana Nahum and Ami Ben-Amotz},
  journal={Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology},
  year={1999},
  volume={82 6},
  pages={549-53}
}
BACKGROUND The unicellular alga Dunaliella bardawil was previously shown to contain very high concentrations of beta-carotene composed of equal amounts of the all-trans and 9-cis stereoisomers which differ in their physicochemical features and antioxidative activity. Due to the controversy regarding the beneficial effect of antioxidants on asthma, the acute effects of beta-carotene of Dunaliella was assessed on airway hyperreactivity in patients with exercise-induced asthma (EIA). METHODS… CONTINUE READING