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American Journal of Clinical Nutrition, Vol 44, 816-824, Copyright © 1986 by The American Society for Clinical Nutrition, Inc

ORIGINAL RESEARCH COMMUNICATIONS

The essential fatty acid deficient chicken as a model for cystic fibrosis

MC Craig-Schmidt, SA Faircloth, PA Teer, JD Weete and CY Wu

The essential fatty acid deficient (EFAD) chicken was evaluated as a model for cystic fibrosis (CF). Three semipurified diets--(I) 1% hydrogenated coconut oil (HCO), (II) 10% soybean oil + 1% HCO, and (III) 11% HCO--were fed to chickens from hatching to 5, 8, or 11 wk. Groups I and III exhibited poor weight gain and abnormal serum fatty acid patterns characteristic of EFAD. Production of prostaglandin F2 alpha, thromboxane B2, 6-keto-prostaglandin F1 alpha, and prostaglandin E in lung was significantly reduced at 5, 8, and 11 wk in both EFAD groups. Histopathologic examination revealed increased peribronchiolitis in group I compared with II. Incidence of pulmonary lesions in group III was intermediate. These data support the theory that essential fatty acids are necessary to maintain proper lung function. In this respect, the chicken is a good model for studying the relationship between EFAD and pulmonary disease in CF patients.


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S. D. Freedman, M. H. Katz, E. M. Parker, M. Laposata, M. Y. Urman, and J. G. Alvarez
A membrane lipid imbalance plays a role in the phenotypic expression of cystic fibrosis in cftr-/- mice
PNAS, November 23, 1999; 96(24): 13995 - 14000.
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