The dynamics of changes in behavioral and hormonal manifestations of a pathological state in mature female rats born by mothers exposed to daily restraint stress on days 15-19 of pregnancy were studied in the experimental model of posttraumatic stress disorder (stress–restress paradigm). Experiments demonstrated increased anxiety in control and prenatally stressed female rats after combined stress followed by restress. This parameter remained enhanced until day 10 after restress in control rats and day 30 in prenatally stressed animals. The severity of depression increased on days 1 and 10 after restress in prenatally stressed female rats. Basal activity of the pituitary–adrenocortical axis increased only in prenatally stressed female rats under these conditions. This parameter increased 1 day after restress and decreased after day 30. It was concluded that prenatal stress could increase the predisposition to post-stress mental pathologies in experimental animals, which are manifested in increased severity and duration of behavioral and hormonal impairments.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 157, No. 3, pp. 289-293, March, 2014
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Pivina, S.G., Akulova, V.K., Rakitskaya, V.V. et al. Development of Behavioral and Hormonal Disorders in Prenatally Stressed Female Rats on the Model of Posttraumatic Stress Disorder. Bull Exp Biol Med 157, 316–319 (2014). https://doi.org/10.1007/s10517-014-2554-5
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DOI: https://doi.org/10.1007/s10517-014-2554-5