IMR Press / CEOG / Volume 41 / Issue 5 / DOI: 10.12891/ceog17092014

Clinical and Experimental Obstetrics & Gynecology (CEOG) is published by IMR Press from Volume 47 Issue 1 (2020). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.

Original Research
Craniofacial catch-up growth in intrauterine growth retarded rats following postnatal nutritional rehabilitation
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1 Institute of Veterinary Genetics, National Scientific and Research Council, University of La Plata, La Plata
2 Faculty of Natural Science and Museum, University of La Plata, La Plata
3 Faculty of Odontology, University of La Plata, La Plata
4 Faculty of Veterinaty Science, University of La Plata, La Plata, Buenos Aires (Argentina)
Clin. Exp. Obstet. Gynecol. 2014, 41(5), 530–533; https://doi.org/10.12891/ceog17092014
Published: 10 October 2014
Abstract

Purpose: The aim of the study was to analyze the effect of postnatal nutritional rehabilitation on the craniofacial growth in rats with intrauterine growth retardation (IUGR). Materials and Methods: Wistar rats were assigned to one of the following groups: control, Sham-operated, and IUGR. The IUGR was produced by uterine vessels bending (day 14 of pregnancy). At days 1, 21, 42, 63, and 84 of postnatal life, each animal was X-rayed, and neural and facial length, width and height were measured. Volumetric and morphometric indices were calculated. Results: The decreased maternal-fetal blood flow during the last-third of the gestation period modified cranial size and shape of both sexes at birth. Discussion: Postnatal nutritional rehabilitation is not fully sufficient to reverse the prenatal growth retardation. There are specific responses depending on the sex and the age of the IUGR pups. Regardless of the changes in size, the shape is not modified during all the postnatal period.
Keywords
Intrauterine growth retardation
Postnatal nutritional rehabilitation
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