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Effects of dietary fat saturation on eicosanoid production, platelet aggregation and blood pressure
Author(s) -
LAHOZ C.,
ALONSO R.,
ORDOVÁS J. M.,
LÓPEZFARRÉ A.,
DE OYA M.,
MATA P.
Publication year - 1997
Publication title -
european journal of clinical investigation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.164
H-Index - 107
eISSN - 1365-2362
pISSN - 0014-2972
DOI - 10.1046/j.1365-2362.1997.1860735.x
Subject(s) - polyunsaturated fatty acid , eicosanoid , medicine , endocrinology , excretion , eicosanoid metabolism , chemistry , blood pressure , polyunsaturated fat , platelet , thromboxane , saturated fat , thromboxane b2 , prostaglandin , fatty acid , biochemistry , arachidonic acid , cholesterol , enzyme
The effects of dietary fat saturation on eicosanoid urinary excretion, platelet aggregation (PA) and blood pressure (BP) were studied in 42 healthy subjects. They consumed four consecutive diets differing in their fat saturation [saturated (SFA); monounsaturated (MUFA); polyunsaturated n ‐6 (PUFA n ‐6); and polyunsaturated n ‐6/ n ‐3, (PUFA n ‐3)]. Each diet period lasted 5 weeks. There were no differences in 24‐h 2,3‐dinor‐6‐keto‐prostaglandin F 1α excretion among dietary periods. A significant effect was noted regarding the excretion of 11‐dehydro‐thromboxane B 2 ( P < 0.0001). During the PUFA n ‐6 phase the excretion was significantly higher than during SFA and MUFA periods. Dietary fatty acid composition had a significant effect on ADP (1 μmol L −1 ) and collagen (2 mg L −1 ) induced PA. Dietary fat also had a significant effect on systolic and diastolic blood pressure ( P < 0.0001). Both were significantly higher during the SFA period than during the other three periods. Our findings suggest that changes in dietary fatty acids may have mild, but significant, effects on eicosanoid production, platelet aggregation and blood pressure.