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Updated: Aug 6, 2026

Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses During Exercise
Published on: February 20, 2017
[Effect of vitamin C on exercise-induced bronchoconstriction]
1Institut za klinicku fiziologiju, Medicinski fakultet, Pristina.
Vitamin C (ascorbic acid) can prevent exercise-induced airway constriction in asthma patients. This suggests vitamin C deficiency worsens airway hyperresponsiveness, and supplementation may help.
Area of Science:
- Respiratory Medicine
- Nutritional Science
- Exercise Physiology
Context:
- Exercise can trigger airway constriction in individuals with asthma.
- The role of vitamin C in modulating exercise-induced bronchoconstriction is not fully understood.
Purpose:
- To investigate the effect of vitamin C (ascorbic acid) pretreatment on exercise-induced airway constriction in asthmatic patients.
- To explore the potential link between vitamin C deficiency and airway hyperresponsiveness.
Summary:
- Pretreatment with vitamin C prevented significant changes in airway geometry caused by exercise in asthma patients.
- These findings indicate that a deficiency in vitamin C may intensify airway responses to exercise and other bronchospasmogenic stimuli.
Impact:
- Vitamin C supplementation may be a viable strategy to decrease airway hyperresponsiveness in asthmatic individuals.
- Understanding the role of micronutrients like vitamin C can inform new therapeutic approaches for managing asthma.
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