Abstract
The fatty acid composition of serum phospholipids (PL) and cholesteryl esters (CE) in 26 healthy pregnant women at the end of term and 1 and 3 days after delivery was analysed in order to determine whether the maternal serum fatty acid composition changes in the early puerperium. The composition of the saturated fatty acids significantly changes in the PL fraction: 16:0 decreased and 18:0 increased. Both 20:4n-6 and 20:5n-3 significantly increased after parturition in serum PL while 22:6n-3 remained constant at the three sampling time points. The sum of HUFA was slightly higher 3 days postpartum compared to the prepartum data. The essential fatty acid index significantly increased after delivery. In the CE fraction too differences occurred during puerperium: 18:2n-6 and 20:4n-6 increased and 18:1n-9 decreased after parturition. The sum of the n-3 fatty acids in CE remained unaltered. The EFA index significantly improved both in PL as in CE after delivery. In conclusion, the previously reported changes in the fatty acid composition of PL and CE during normal pregnancy diminish shortly after delivery. In fact, very soon after delivery the maternal fatty acid composition returns to more normal values.
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