OBJECTIVES: To describe the course of total and ionized @entity1760 and total @entity460 levels in maternal serum during low-risk pregnancies and to compare @entity1 who developed @entity3152 and delivery with those who delivered at term. METHODS: 209 @entity1 with low-risk pregnancies were enrolled in a prospective trial before the 18th week of gestation. No @entity1 received oral @entity1760 supplementation. The ionized and total @entity1760 and total @entity460 levels in maternal serum were measured every 4-6 weeks. The data were grouped into 3 gestational periods (</=18, 19-27 and >/=28 weeks of gestation) for overall comparison and analyzed with the general linear model for repeated measurements and ANOVA. p values of < 0.05 were considered statistically significant. RESULTS: 145 gestations were available for analysis. 27 @entity1 were hospitalized for @entity3152 and in 16 of these @entity3152 occurred. Ionized and total @entity1760 and @entity460 levels were significantly lower after the 18th week of gestation than before. The cation levels in @entity1 with @entity3152 and delivery did not differ from those with term delivery. CONCLUSION: Ionized and total @entity1760 and @entity460 levels decrease with increasing gestational age. @entity3152 and delivery do not seem to be related to changes in serum cation levels.

Course of maternal serum XXXX levels in low-risk gestations and in @entity3152 and delivery.

@entity1 :: ('9606', 'Species') :: ['women', 'woman'] @entity3152 :: ('MESH:D007752', 'Disease') :: ['preterm delivery', 'preterm labor', 'Preterm labor'] @entity460 :: ('MESH:D002118', 'Chemical') :: ['calcium'] @entity1760 :: ('MESH:D008274', 'Chemical') :: ['magnesium']
@entity1760 :: (MESH:D008274,Chemical) :: ['magnesium']
