Perinatal collagen turnover markers in intrauterine growth restriction

The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians
Demetrios GourgiotisAriadne Malamitsi-Puchner

Abstract

To investigate bone and connective tissue collagen turnover in intrauterine growth restricted (IUGR) pregnancies, by determining circulating markers of type I collagen synthesis (carboxy-terminal propeptide of type I procollagen [PICP], representing bone formation) and degradation (cross-linked telopeptide of type I collagen [ICTP], representing bone resorption) as well as type III collagen synthesis (N-terminal propeptide of type-III procollagen [PIIINP], reflecting growth and tissue maturity). Plasma PICP, ICTP and PIIINP concentrations were measured in 40 mothers and their 20 asymmetric IUGR and 20 appropriate for gestational age (AGA) full-term fetuses and neonates on postnatal day 1-(N1) and 4-(N4). Fetal PICP, fetal and N4 ICTP, as well as fetal, N1 and N4 PIIINP concentrations were higher in the IUGR group (p ≤ 0.038, in all cases). In both groups, maternal PICP, ICTP and PIIINP concentrations were lower than fetal, N1 and N4 ones (p<0.001, in each case). Type I collagen turnover is enhanced in IUGR than AGA fetuses/neonates. Similarly, fetal/neonatal PIIINP concentrations are elevated in IUGR, probably due to stress, responsible for induction of tissue maturation, and/or to impaired excretory renal function, leading to ...Continue Reading

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Citations

Sep 20, 2015·Pathology, Research and Practice·Fernanda Rodrigues HelmoRosana Rosa Miranda Corrêa

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