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  • Title: Effects of neurotrophic stress on maternal metabolism and binding of plasma cortisol in late pregnant guinea-pigs and their fetuses.
    Author: Dauprat P, Dalle M, Delost P.
    Journal: J Dev Physiol; 1990 Jan; 13(1):13-6. PubMed ID: 2391412.
    Abstract:
    The maternal metabolic clearance rate (MCR) and the binding of cortisol in the plasma of fetus and mother were estimated 8 days before term in conscious pregnant guinea-pigs, control or subjected to a neurotrophic stress (they were immobilized for 3 h in a dark room in front of an intermittent luminous flash). The maternal MCR of cortisol dropped during pregnancy related to an increase in corticosteroid binding globulin (CBG) and the stress mimicked these changes with a decrease in MCR and a rise in CBG. The increase in cortisol concentrations occurring in the fetal plasma after maternal stress could be related to the increase in free cortisol in the stressed mother. Nevertheless, although the fetal CBG did not rise after maternal stress, the increase in free cortisol in the fetal plasma remained moderate, due to the numerous free sites of CBG and albumin for cortisol.
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