Vitamin D Concentration in Maternal and Umbilical Cord Blood by Season
AbstractSummer is generally considered to be the season when the body is well-supplied with vitamin D. The aim of this study was to compare maternal and umbilical cord blood concentrations of vitamin D during two extreme seasons of the year in Poland—winter and summer. A total of 100 pregnant women with no history of chronic diseases before pregnancy were included in the study. Pre-delivery maternal venous blood and neonatal cord blood samples were collected and total 25(OH)D concentration was measured. Data on vitamin D consumption (collected with the use of Food Frequency Questionnaire) and lifestyle factors were taken. Both, maternal and umbilical cord blood concentrations of vitamin D were higher in the summer group as compared to the winter group (mean 22.2 ± 6.5 ng/mL vs. 16.5 ± 8.2 ng/mL (p < 0.001), respectively for the mothers and 31.3 ± 9.4 ng/mL vs. 22.7 ± 11.0 ng/mL (p < 0.0001), respectively for the neonates). However, only 16% of the pregnant women reached the optimal vitamin D concentration during summer. Therefore, summer improves the levels of vitamin D in the body but does not guarantee the recommended concentration and supplementation throughout the whole year is essential. View Full-Text
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Wierzejska, R.; Jarosz, M.; Sawicki, W.; Bachanek, M.; Siuba-Strzelińska, M. Vitamin D Concentration in Maternal and Umbilical Cord Blood by Season. Int. J. Environ. Res. Public Health 2017, 14, 1121.
Wierzejska R, Jarosz M, Sawicki W, Bachanek M, Siuba-Strzelińska M. Vitamin D Concentration in Maternal and Umbilical Cord Blood by Season. International Journal of Environmental Research and Public Health. 2017; 14(10):1121.Chicago/Turabian Style
Wierzejska, Regina; Jarosz, Mirosław; Sawicki, Włodzimierz; Bachanek, Michał; Siuba-Strzelińska, Magdalena. 2017. "Vitamin D Concentration in Maternal and Umbilical Cord Blood by Season." Int. J. Environ. Res. Public Health 14, no. 10: 1121.
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