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Abstract
Objective: The aim of the current study was to determine any relationship between the timing of clamping of the umbilical cord and the lipid levels circulating in umbilical artery and vein.
Methods: We studied a clinical trial with systematic assignment in 229 single-fetus full-term deliveries with normal gestational course and spontaneous delivery; out of these, 111 were subjected to early clamping (EC, within 10 s of delivery) and 118 to late clamping (LC, at 2 min). In all cases, total cholesterol (TC), triglycerides (TG), and phospholipids were measured in sera from umbilical artery and vein.
Results: TC and TG values were significantly higher in the EC group than in the LC group in both umbilical artery and vein. Comparing values between umbilical artery and vein in the two clamping groups, in the EC group, all studied lipids TC, TG and phospholipids were significantly higher in vein than in artery. In the LC group, only TC was higher in vein.
Conclusion: Umbilical cord lipid levels are related to the timing of umbilical cord clamping, finding which is noteworthy, because they are essential component of postnatal development. Our study confirms that delivery acts as an important modifier of fetal lipid levels.
Declaration of interest
This study was funded by the Spanish Health Ministry (PI030780). The authors declare that they have no conflicts of interest.