Abstract
Objectives The etiology of conotruncal heart defects (CHD) remains unknown; however relation between homocysteine, folate levels, and congenital heart disease was found. With this perspective in mind, the aim of the study was to investigate biomarkers of homosyteine metabolism pathway in mothers and their neonates with CHD. Material and Methods Forty-three pairs of mothers and their neonates with CHD and forty pairs of mothers and neonates with nonconotruncal heart defects (non-CHD) were enrolled. The control group (CG) consisted of fifty-nine pairs of mothers and their healthy neonates. For estimating the plasma total homocysteine (tHcy), serum folates, and cobalamin levels, mothers' venous blood samples and umbilical cord blood were taken in all groups. Results We observed higher tHcy levels in newborns with CHD in comparison to their mothers and to neonates with non-CHD. Cobalamin levels were significantly lower in neonates with CHD compared to other children. Folates and cobalamin levels were lower in CHD mothers compared to their children. Conclusions Elevated homocysteine levels in neonates with CHD and folate metabolism disturbances in their mothers were noticed. The observed differences in homocysteine and cobalamin levels between neonates with CHD suggest the influence of various agents disturbing homocysteine metabolic pathways.
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