Persistence of essential fatty acid deficiency in cystic fibrosis despite nutritional therapy.
To study the evolution of plasma fatty acid composition of patients with cystic fibrosis (CF) in relation to nutritional status, pancreatic function, and development of CF-related liver disease (CFRLD) and diabetes mellitus, 24 CF pediatric patients with stable pulmonary disease were studied before and after an approximate period of 8 y. Nutritional status, pulmonary function, pancreatic function, and presence of CFRLD or diabetes mellitus were recorded. Results were compared with data obtained in 83 healthy children. Patients with CF have significantly lower linoleic acid (LA), docosahexaenoic acid (DHA), lignoceric acid, and LA x DHA product and higher oleic acid, mead acid, dihomo-gamma-linoleic acid, and docosapentaenoic acid (DPA). Comparison of samples taken at first and second studies revealed a significant decrease in LA levels and lignoceric acid associated with a significant increase in dihomo-gamma-linoleic acid levels. Patients with CFRLD showed significantly higher mead acid/arachidonic acid ratio and lower total omega6 polyunsaturated fatty acids content. There was no relation of plasma fatty acids composition with pancreatic function, pulmonary function, or diabetes mellitus. Follow-up of patients with CF shows that essential fatty acids deficiency, particularly in LA and DHA content, persisted unmodified along time despite an adequate nutritional therapy. Future studies after supplementation with omega3 polyunsaturated fatty acids should be undertaken.
Department of Pediatrics, Cruces Hospital and Basque University School of Medicine, Basque Country, Spain. luisjose.aldamiz-echevarazuara@osakidetza.net
Luis
L
Aldámiz-Echevarría
José Angel
JA
Prieto
Fernando
F
Andrade
Javier
J
Elorz
Amaia
A
Sojo
Sergio
S
Lage
Pablo
P
Sanjurjo
Carlos
C
Vázquez
Juan
J
Rodríguez-Soriano
D000367:Age Factors; D000886:Anthropometry; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D003550:Cystic Fibrosis / Q000178:diet therapy* / Q000628:therapy*; D005227:Fatty Acids / Q000097:blood; D005228:Fatty Acids, Essential / Q000097:blood / Q000172:deficiency*; D005231:Fatty Acids, Unsaturated / Q000097:blood / Q000378:metabolism; D005260:Female; D006801:Humans; D008107:Liver Diseases / Q000150:complications* / Q000503:physiopathology; D008297:Male; D044623:Nutrition Therapy / Q000379:methods; D010179:Pancreas / Q000503:physiopathology; D013997:Time Factors
D005227:Fatty Acids; D005228:Fatty Acids, Essential; D005231:Fatty Acids, Unsaturated