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Maternal Undernutrition during Late Gestation Induces Fetal Overexposure to Glucocorticoids and Intrauterine Growth Retardation, and Disturbs the Hypothalamo-Pituitary Adrenal Axis in the Newborn Rat1

Lesage, J., Blondeau, B., Grino, M., Bréant, B., Dupouy, J. P.·2001·Endocrinology

Abstract

As fetal overexposure to glucocorticoids has been postulated to induce intrauterine growth retardation (IUGR) in humans, we investigated the effects of maternal 50% food restriction (FR50) in rats during the last week of gestation on the hypothalamo-pituitary adrenal (HPA) axis activity in both mothers and their fetuses. In mothers, FR50 increased both the plasma corticosterone (B) level from embryonic days 19-21 and the relative adrenal weight at term. FR50 decreased at term both the maternal plasma corticosteroid-binding globulin level and placental 11beta-hydroxysteroid dehydrogenase type 2 expression. In newborns, maternal FR50 reduced body and adrenal weights, glucocorticoid and mineralocorticoid receptor expressions in the hippocampus, corticoliberin expression in the hypothalamic paraventricular nucleus, and plasma ACTH. In FR50 newborns, the plasma B level was increased at birth and decreased 2 h later. When maternal circulating B was maintained at the basal level by adrenalectomy and B supply, FR50 induced IUGR in pups and decreased placental 11beta- hydroxysteroid dehydrogenase type 2 expression at term, but did not disturb the offspring's HPA axis. These results suggest that maternal undernutrition during late gestation induces both IUGR and an overexposure of fetuses to maternal B, which disturb the development of the HPA axis.

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Metadata

Authors
Lesage, J., Blondeau, B., Grino, M., Bréant, B., & Dupouy, J. P.
Venue
Endocrinology
Published
2001-05
Volume
142
Issue
5
Pages
1692-1702
ISSN
  • 0013-7227 (ISSN-L)
  • 1945-7170
OpenAlex
W2041277193
Cited by
379
References
47
FWCI
14.44
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Maternal Undernutrition during Late Gestation Induces Fetal Overexposure to Glucocorticoids and Intrauterine Growth Retardation, and Disturbs the Hypothalamo-Pituitary Adrenal Axis in the Newborn Rat1. https://app.cochat.ai/papers/10.1210/endo.142.5.8139
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Lesage, J., Blondeau, B., Grino, M., Bréant, B., & Dupouy, J. P. (2001). Maternal Undernutrition during Late Gestation Induces Fetal Overexposure to Glucocorticoids and Intrauterine Growth Retardation, and Disturbs the Hypothalamo-Pituitary Adrenal Axis in the Newborn Rat1. Endocrinology. https://doi.org/10.1210/endo.142.5.8139

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