Concentrations of conjugated linoleic acids in neonatal blood in relationship to those in maternal blood

Abstract In this study, the proportions of conjugated linoleic acids (CLA) in total lipids of plasma, lipoproteins and erythrocytes from maternal blood and from venous cord blood of 20 pregnant women consuming conventional western diets after delivery were determined. cis-9, trans-11 CLA was the only isomer detected, and its proportions in maternal blood lipids were relatively low. Mean proportions in plasma, lipoproteins and erythrocytes of mothers were between 0.20 and 0.25 mol/100 mol of total fatty acids. Proportions in cord blood lipids were even lower than those of maternal lipids (values in mol/100 mol: plasma, 0.19±0.04; VLDL, 0.20±0.06; LDL, 0.15±0.03; HDL, 0.14±0.06; erythrocytes, 0.12±0.05). There was some significant ( P