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BMJ 2003;327:1358-1359 (13 December), doi:10.1136/bmj.327.7428.1358
Time to say goodnight
| The first 150 words of the full text of this article appear below. |
With concerns about using topical corticosteroids for atopic dermatitis sometimes reaching phobic proportions,1 the emergence of a natural plant oil extract as a possible alternative treatment was well received in the early 1980s.2 3 Interest was fuelled because evening primrose oil extract (containing 8-10% of gamma linolenic acid (GLA)) appeared to cause few side effects and because there was a very plausible mechanism to explain why supplementation with this essential fatty acid might work in atopic dermatitis.4 The scene was therefore set for a new treatment, and physicians like myself were delighted to have another option to offer patients with this miserable condition.
Since then many studies have evaluated the efficacy of oral gamma linolenic acid supplementation for atopic dermatitis, with conflicting results. Fifteen studies (10 dealing with evening primrose oil, and five with borage oil, which contains even higher concentrations of GLA) were summarised in a systematic review of atopic
Hywel C Williams, professor of dermatoepidemiology
Centre of Evidence-Based Dermatology, University Hospital, Queen's Medical Centre, Nottingham NG7 2UH (hywel.williams@nottingham.ac.uk)
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