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Fish Oil and Asthma in House Dust Mite Allergy

2014-08-27 03:42:21 | BioPortfolio

Summary

Native populations consuming high amounts of fish suffer less from allergic diseases. The purpose of this study is to determine whether polyunsaturated fatty acids (fish oil) might have a disease modifying influence on asthmatics sensitized to house dust mite.

Description

Most asthmatics suffer from mild disease and non pharmacologic intervention would be beneficial for the majority of these subjects. We investigated the anti-inflammatory potential of polyunsaturated fatty acids (PUFA) in allergic asthma.

In our parallel, double-blinded study, 23 patients allergic to house dust mite were randomly assigned to dietary supplementation with a PUFA enriched fat blend or placebo for five weeks. The verum contained eicosapentaenoic acid (EPA) 450 mg/day, docosahexaenoic acid 180 mg/day, stearidonic acid 60mg/day, and gamma-linolenic acid 60 mg/day; the placebo consisted of mainly unsaturated and monosaturated fatty acids. After three weeks, the patients were challenged with low doses of inhalative house dust mite allergen for two weeks.

Following parameters were determined during low-dose allergen exposure in both groups: exhaled NO (eNO) as a marker of bronchial inflammation, clinical symptoms, FEV1, beta-agonist usage, and bronchial hyperreactivity, sputum eosinophils and sulfoleucotrienes. Compliance with the study protocol was controlled by the determination of PUFAs in plasma and erythrocytes.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment

Conditions

Allergic Asthma

Intervention

polyunsatturated fatty acids (fish oil)

Status

Completed

Source

Johann Wolfgang Goethe University Hospitals

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:42:21-0400

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Medical and Biotech [MESH] Definitions

C22-unsaturated fatty acids found predominantly in FISH OILS.

FATTY ACIDS found in the plasma that are complexed with SERUM ALBUMIN for transport. These fatty acids are not in glycerol ester form.

Organic, monobasic acids derived from hydrocarbons by the equivalent of oxidation of a methyl group to an alcohol, aldehyde, and then acid. Fatty acids are saturated and unsaturated (FATTY ACIDS, UNSATURATED). (Grant & Hackh's Chemical Dictionary, 5th ed)

UNSATURATED FATTY ACIDS that contain at least one double bond in the trans configuration, which results in a greater bond angle than the cis configuration. This results in a more extended fatty acid chain similar to SATURATED FATTY ACIDS, with closer packing and reduced fluidity. HYDROGENATION of unsaturated fatty acids increases the trans content.

FATTY ACIDS which have the first unsaturated bond in the sixth position from the omega carbon. A typical American diet tends to contain substantially more omega-6 than OMEGA-3 FATTY ACIDS.

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