Abstract
The newborn infant is completely dependent on his mother's supply of vitamin D3. In 10 newborn infants after cesarean section we found during late summer time /Sept. through Oct./ 15.1 ng 25-HCC per ml plasma on the 2nd day of life. Compared with 10 newborn infants during winter this level was 4-times higher. During the first 2 weeks of life the summer group did not receive vitamin D3 except 100 I.U. with the daily food. The level of 25-HCC did not change. In the winter group receiving daily 500 I.U. vitamin D3 the level of 25 HCC increased from 3.6 ng/ml to 10.1 ng/ ml within 2 weeks. Elevation of calcium after a single high dose of vitamin D3 /5 mg = 200.000 I.U./was higher than after 500 I.U. per day. The level of 25-HCC increased much more after a single high dose of vitamin D3 than after daily 500 I.U. The risk of the so-called “Frühstoss” will be discussed.
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Wolf, H., Offermann, G. 25-HYDROXYCHOLECALCIFEROL /25-HCC/ IN NEWBORN INFANTS WITH AND WITHOUT VITAMIN D3. Pediatr Res 9, 856 (1975). https://doi.org/10.1203/00006450-197511000-00028
Issue Date:
DOI: https://doi.org/10.1203/00006450-197511000-00028