Abstract
Platelet lipid composition is important to normal platelet morphology and function, and is influenced by dietary fatty acids and cholesterol. The fatty acid composition and cholesterol content of infant formulas differs from those of human milk, but the possible effects on platelet lipids in young infants is not known. This was studied in piglets fed from birth to 18 d of age with one of eight formulas differing in saturated fatty acid chain length, or content of 18∶1, 20∶5n−3 plus 22∶6n−3, or cholesterol. A reference group of piglets fed sow milk was also studied. Sow milk has a fatty acid composition and cholesterol content similar to that of human milk. Piglets fed formulas high in 18∶1 (34.9–40.8% wt fatty acids) and low in 16.0 (≤6.5% wt fatty acids) had lower platelet counts and greater platelet size than piglets fed sow milk (40.4% 18∶1, 30.7% 16∶0). Piglets fed formulas high in 16∶0 (27–29.6%) and 18∶1 (40–40.6%), or low in both 16∶0 (5.9–6.1%) and 18∶1 (10.8–11.2%), had similar platelet counts and size to piglets fed sow milk. Platelet phospholipid % 20∶4n−6 was lower in all the groups of piglets fed formula than in the group fed sow milk. Addition of fish oil with 20∶5n−3 plus 22∶6n−3 to the formula further decreased platelet phospholipid 20∶4n−6. Addition of cholesterol to the formula increased the platelet phospholipid % 20∶4n−6 and platelet volume.
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Abbreviations
- APTT:
-
activated partial thromboplastin time
- GLC:
-
gas-liquid chromatography
- MCT:
-
medium-chain triglycerides
- PDW:
-
platelet distribution width
- PT:
-
prothrombin time
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Innis, S.M., Dyer, R., Wadsworth, L. et al. Dietary saturated, monounsaturated, n−6 and n−3 fatty acids, and cholesterol influence platelet fatty acids in the exclusively formula-fed piglet. Lipids 28, 645–650 (1993). https://doi.org/10.1007/BF02536060
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DOI: https://doi.org/10.1007/BF02536060