The impact of a medical food containing gammalinolenic and eicosapentaenoic acids on asthma management and quality of life of adult asthma patients

Department of Chemistry and Biochemistry, University of Moncton, Moncton, NB, Canada.
Current Medical Research and Opinion (Impact Factor: 2.65). 02/2008; 24(2):559-67. DOI: 10.1185/030079908X273011
Source: PubMed


Leukotriene synthesis inhibitors and receptor antagonists are efficacious for the treatment of asthma. Diets containing the fatty acids gammalinolenic acid (GLA) and eicosapentaenoic acid (EPA) decrease leukotriene synthesis; however, their impact on asthma management and quality of life (QOL) has not been evaluated in asthmatic subjects.
To evaluate asthma management and the QOL of asthmatic adult subjects consuming a medical food emulsion containing GLA and EPA.
Trial 1 was a randomized, prospective, double-blind, placebo-controlled, parallel group trial in atopic subjects with mild-to-moderate asthma (n = 35 evaluable) consuming a low dose (0.75 g GLA + 0.5 g EPA), high dose (1.13 g GLA + 0.75 g EPA) or placebo emulsion daily. Subjects were questioned about their asthma management using a non-validated questionnaire after 2 and 4 weeks. Blood leukotrienes were measured at baseline and after 4 weeks. Trial 2 was an open-label study (n = 65 evaluable) where subjects consumed the low-dose medical food emulsion, EFF1009, daily. QOL and asthma management were measured using the validated Mini Asthma Quality of Life (MiniAQLQ) and the Asthma Control (ACQ) questionnaires, respectively, administered at baseline and after 4 weeks.
In Trial 1, leukotriene biosynthesis decreased (p < 0.05). Self-reported asthma status and bronchodilator use improved in subjects consuming low- and high-dose emulsion between week 2 and week 4 (p < 0.01), but not compared to placebo (p > 0.1). In Trial 2, mean +/- standard error total MiniAQLQ and ACQ scores improved by 1.5 +/- 0.2 and 1.0 +/- 0.1, respectively (p < 0.001). Subdomain scores from MiniAQLQ improved and rescue bronchodilator use decreased (p < 0.001).
The inclusion of the medical food EFF1009 in asthma management regimens can improve patient quality of life and decrease reliance on rescue medication.

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    • "Health Insurance coverage of Medical foods is a debatable issue. Lindemann J, et al [20] , Surette ME, et al [21] USA, Canada 2009, 2008 Clinical study and a randomized, prospective, doubleblind , placebocontrolled parallel group trial in atopic subjects with mildto-moderate asthma Clinical study of the effects on asthmarelated QOL and asthma management of a medical food in adult asthma patients. The impact of a medical food containing gammalinolenic and eicosapentaenoic acids on asthma management and the quality of life of adult asthma patients. "
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    ABSTRACT: Background: Currently medical foods for sick and healthy persons are gaining momentum globally from its nascent stage; so it is useful to study this area, not only for patients and clinicians, but also for public health experts across the globe. Methods: Systematic review as per PRISMA (2009) guidelines on key search word: " Medical Foods " was done from all major search engines; where any kind of full text article and abstract was available till 30th September 2014 from last 40 years, later on Scientometric analysis till this search date, across developed and developing world was done. Only published data on medical foods role in any kind of disease and health physiology and health pathology available globally from both developed and developing countries was included and analyzed in our study. All sort of unpublished data as well as medical foods biochemical studies were excluded from our study. Results: Analysis of 50 articles out of 150 articles searched revealed that; Medical foods research is concentrated mainly in developed countries (e.g. USA), with very few research in context of developing countries such as India (86% Vs 04%).The highest number of publications were from year 2012(26%) and belonged to English language(98%). The Scientific research publication papers (60%) with maximum citations between (5-10/reference) were found to be 54%. Conclusions: Medical foods strict regulations and monitoring processes need to remain active globally, otherwise its real potential can be lost in future. Medical foods research area needs promotion in developing countries, as there is a lot of scope of its development in these nations.
    International Journal of Food Sciences and Nutrition 07/2015; 4(4 4):420-430. DOI:10.11648/j.ijnfs.20150404.12 · 1.21 Impact Factor
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    • "Al ingerir un ácido graso omega 3, éste se incorpora a la membrana celular (principalmente de ojos y cerebro), cambiando de este modo su composición. Los metabolitos secundarios derivados de los omega 3 de cadena larga (EPA y DHA) son sintetizados a partir del ALA (Surette et al., 2008). Sin embargo, la transformación de ALA a ácidos de cadena larga es muy pobre en humanos (Rueda et al., 2011), por lo que es recomendable consumir fuentes que contengan EPA y DHA. "
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    • "This sample size will also allow us to detect a minimal important difference of .5 on the AQLQ [113,142], using the Mini-AQLQ a difference as large as 0.97 (SD .61) was found to be clinically meaningful and significant [114,143-145]. "
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