Journal of VolgSMU
Quarterly scientific-practical journal

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COMPARATIVE ANALYSIS OF VITAMIN D LEVELS IN THE UMBILICAL CORD BLOOD IN NEONATES OF DIFFERENT GESTATIONAL AGE IN THE VOLGOGRAD REGION

T.E. Zayachnikova1, A.S. Krasilnikova1, O.V. Ostrovskij2, V.E. Verovsky2, I.N. Shishimorov1, O.V. Magnitskaya1

ФГБОУ ВО «Волгоградский государственный медицинский университет» Министерства здравоохранения Российской Федерации, 1кафедра педиатрии и неонатологии института непрерывного медицинского и фармацевтического образования; 2кафедра теоретической биохимии с ку

Abstract

Vitamin D is an important prehormone which deficiency is recognized as a pandemic with many adverse effects on human health at the beginning of intrauterine development period. Vitamin D deficiency is associated with placental insufficiency, fetal growth retardation syndrome, miscarriage, preeclampsia, gestational diabetes, low birth weight, increasing of autoimmune diseases. A study of pretenatal provision of vitamin D in newborns in the Volgograd region has not been carried out yet. Materials and methods: the 25(OH)D levels in the umbilical cord blood serum of 118 newborns was performed, then babies were randomized to 2 groups depending on their gestational age: the 1st group included preterm infants of gestational age from 24 to 36 weeks (n = 52); the 2nd group contained full-term newborns born from 37 to 41 weeks (n = 66). The analysis of socio-demographic and medical indicators characterizing the course of the prenatal period of a child’s life was carried out. Pathomorphological features of the placenta and umbilical cord were compared according to pathological and morphometric data in the studied groups. Results: the proportion of premature babies with a 25(OH)D deficit is significantly higher than that of full-term babies (69,2 and 38,2 %, respectively, p < 0,001). Significant differences were found in the group of preterm infants in compare to full-term ones due to: gestational age, low Apgar score; low birth weight and body length, fetus-placental insufficiency and umbilical cord abnormalities (p < 0,05). Conclusions: the study showed the dependence of 25(OH)D deficiency on umbilical cord blood on gestational age, low birth weight and body length, low Apgar score, fetus-placental insufficiency, umbilical cord disease, maternal arterial hypertension during pregnancy. Further study of the predisposition to low prenatal provision of vitamin D in newborns babies in the Volgograd region is necessary.

Keywords

newborns, premature infants, umbilical cord blood, vitamin D deficiency, prenatal provision of vitamin D, 25-hydroxycholecalciferol (25(OH)D).

Contacts

Заячникова Татьяна Евгеньевна – к. м. н., профессор кафедры педиатрии и неонатологии ИНМФО, Волгоградский государственный медицинский университет, e-mail: pedneonatalfuv@mail.ru