Impact of botanical oils on polyunsaturated fatty acid metabolism and leukotriene generation in mild asthmatics.
Lipids Health Dis
; 12: 141, 2013 Oct 02.
Article
em En
| MEDLINE
| ID: mdl-24088297
ABSTRACT
BACKGROUND:
Dietary supplementation with botanical oils that contain n-6 and n-3 eighteen carbon chain (18C)-PUFA such as γ linolenic acid (GLA, 183n-6), stearidonic acid (SDA, 184n-3) and α linolenic acid (ALA, 183n-3) have been shown to impact PUFA metabolism, alter inflammatory processes including arachidonic acid (AA) metabolism and improve inflammatory disorders.METHODS:
The diet of mild asthmatics patients was supplemented for three weeks with varying doses of two botanical seed oils (borage oil [Borago officinalis, BO] and echium seed oil [Echium plantagineum; EO]) that contain SDA, ALA and GLA. A three week wash out period followed. The impact of these dietary manipulations was evaluated for several biochemical endpoints, including in vivo PUFA metabolism and ex vivo leukotriene generation from stimulated leukocytes.RESULTS:
Supplementation with several EO/BO combinations increased circulating 20-22 carbon (20-22C) PUFAs, including eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA), and dihommo-gammalinolenic acid (DGLA), which have been shown to inhibit AA metabolism and inflammation without impacting circulating AA levels. BO/EO combinations also inhibited ex vivo leukotriene generation with some combinations attenuating cysteinyl leukotriene generation in stimulated basophils by >50% and in stimulated neutrophils by >35%.CONCLUSIONS:
This study shows that dietary supplementation with BO/EO alters 20-22C PUFA levels and attenuates leukotriene production in a manner consistent with a reduction in inflammation.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Asma
/
Óleos de Plantas
/
Leucotrienos
/
Ácido gama-Linolênico
/
Suplementos Nutricionais
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Echium
Limite:
Adolescent
/
Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Lipids Health Dis
Assunto da revista:
BIOQUIMICA
/
METABOLISMO
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Estados Unidos