%0 Journal Article %A Santos, Cristina %A García-Fuentes, Eduardo %A Callejón-Leblic, Belén %A García-Barrera, Tamara %A Gómez-Ariza, José Luis %A Rayman, Margaret P %A Velasco, Inés %T Selenium, selenoproteins and selenometabolites in mothers and babies at the time of birth. %D 2017 %U http://hdl.handle.net/10668/11221 %X The deficiency of Se, an essential micronutrient, has been implicated in adverse pregnancy outcomes. Our study was designed to determine total serum Se, selenoproteins (extracellular glutathione peroxidase (GPx-3), selenoprotein P (SeP)), selenoalbumin (SeAlb) and selenometabolites in healthy women and their newborns at delivery. This cross-sectional study included eighty-three healthy mother-baby couples. Total Se and Se species concentrations were measured in maternal and umbilical cord sera by an in-series coupling of two-dimensional size-exclusion and affinity HPLC. Additional measurements of serum SeP concentration and of serum GPx-3 enzyme activity were carried out using ELISA. Total Se concentration was significantly higher in maternal serum than in cord serum (68·9 (sd 15·2) and 56·1 (sd 14·6) µg/l, respectively; P %K 2D/SE-AF-HPLC two-dimensional size-exclusion and affinity HPLC %K GPx-3 extracellular glutathione peroxidase %K SeAlb selenoalbumin %K SeMetab selenometabolites %K SeP selenoprotein P %K Gestation %K Selenium %K Selenoprotein P %K Selenoproteins %~