Comparison of Maternal and Umbilical Cord Blood Selenium Levels in Low and Normal Birth Weight Neonates

To compare the maternal and umbilical cord serum selenium concentrations in Low and normal birth weight neonates.A case-control study was carried out in Vali-Asr and Akbarabadi Hospitals (Jan. to Dec. 2013). Two groups; case group; 91 mothers who delivered a low birth weight (LBW) neonate and control group; 86 subjects who delivered a normal birth weight neonate were selected. Immediately after birth, 5 ml of maternal blood and umbilical cord blood were collected, and sent to laboratory to assay Se concentrations. To compare both groups'' blood Se concentration, data were analyzed in SPSS 16.0.Eighty six (48.6%) mothers with normal birth weight neonates and 91 (51.4%) mothers with low birth weight infants entered the study. Mean maternal mothers'' age and mean maternal blood Se were 28.55+5.90 years and 79.3756+26.46915. A significant association was seen between maternal blood and cord blood Se level in control and case group (P value<0.0001, r = 0.69) and(P value<0.001, r = 0.79). On the other hand no differences were seen between 2 groups'' maternal blood Se level (P Value = 0.65). Umbilical Cord blood Se concentration was not also different between case and control group (P value = 0.46).We found that maternal and umbilical cord blood Se concentrations were not different in low and adequate birth weight infants, however; umbilical cord Se concentrations were positively correlated with maternal blood Se concentrations.