The molecular polymorphism and quantitative levels of serum vitamin D-binding protein (DBP) were ascertained in a group of preterm, full-term and hypocalcaemic full-term newborn infants. The serum concentration of DBP is not influenced by phenotype and increases with fetal age from the 32nd-33rd week of gestation until the 35th week of gestation. Neither different DBP allele distribution nor abnormal quantitative levels found among 29 hypocalcaemic full-term newborn infants.
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