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The Effect of Combining Fish Oil and Vitamin C on Airway Inflammation and Hyperpnea-Induced Bronchoconstriction in Asthma | OMICS International | Abstract
ISSN: 2155-6121

Journal of Allergy & Therapy
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Research Article

The Effect of Combining Fish Oil and Vitamin C on Airway Inflammation and Hyperpnea-Induced Bronchoconstriction in Asthma

Timothy D Mickleborough1* and Martin R Lindley2

1School of Public Health, Human Performance and Exercise Biochemistry Laboratory, Department of Kinesiology, Indiana University, Bloomington, IN, USA

2Human Cellular and Molecular Biology Research Laboratory, Inflammation, Exercise and Metabolism Research Group, School of Sport Exercise and Health Sciences, Loughborough University, UK

*Corresponding Author:
Timothy D. Mickleborough
FACSM, School of Public Health, Department of Kinesiology
1025 E. 7th St. SPH 112, Bloomington, IN 47404, USA
Tel: 8128550753
Fax: 8128553193
E-mail: [email protected]

Received date: June 04, 2014; Accepted date: July 16 2014; Published date: July 23, 2014

Citation: Mickleborough TD, Lindley MR (2014) The Effect of Combining Fish Oil and Vitamin C on Airway Inflammation and Hyperpnea-Induced Bronchoconstriction in Asthma. J Allergy Ther 5:184. doi: 10.4172/2155-6121.1000184

Copyright: © 2014 Mickleborough TD, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Purpose: To compare the effects of two mono-therapies (fish oil and vitamin C) alone and in combination, on airway inflammation and the bronchoconstrictor response to eucapnic voluntary hyperpnea (EVH) in asthmatics.

Methods: Sixteen asthmatic subjects with hyperpnea-induced bronchoconstriction (HIB) entered the study on their usual diet (pre-treatment, n=16) and then randomly assigned to receive either active vitamin C tablets (1.5 g) and placebo fish oil capsules (n=8) or active fish oil capsules (3.2 g EPA/2.0 g DHA) and placebo vitamin C tablets (n=8) taken for 3 weeks. Thereafter, all subjects (combination treatment; n=16) underwent a further 3-week treatment period consisting of active vitamin C tablets and active fish oil capsules taken daily (NT01057615).

Results: HIB was significantly inhibited (p<0.017) by fish oil, vitamin C and combination treatment compared to pre-treatment (usual diet); percent fall in post-EVH forced expiratory volume in 1-sec was 18.8 + 5.7%, 9.7 + 5.4%, 10.5 ± 10.2% and 10.7 ± 9.3% on the usual diet, fish oil, vitamin C and combination treatment respectively. All three treatments, compared to the usual diet, were associated with a significant reduction (p<0.017) in the fraction of exhaled nitric oxide and bronchodilator use, and improvement in asthma symptom scores and exhaled breath condensate pH. There was no significant difference between treatment groups for any dependent variables.

Conclusion: While fish oil and vitamin C supplementation are both effective in attenuating airway inflammation and HIB, combining these two nutrients does not confer a greater anti-inflammatory effect or suppression of HIB than either intervention alone.

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