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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2013; 59(6): 116-123


Effects of the prenatal hypoxia on the hypothalamic-pituitary-adrenal axis function and working memory in rats

Tiul'kova EI, Vataeva LA, Glushchenko TS, Pivina SG

    Pavlov Institute of Physiology RAS, St.Petersburg, Russia


Abstract

A comparative analysis of the effects of severe hypobaric hypoxia in different prenatal periods on expression profiles of glucocorticoid receptors (GR) in dorsal (CA1) and ventral (dental gyrus) hippocampus and neocortex of rats, their stress reactivity and working memory has been performed in the present study for the first time. According to the data obtained, severe hypoxia in the prenatal period induces remarkable disturbances of GR expression in the neurons of neocortex of adult males but not females, that correlates to the disruption of working memory in adult males exposed to hypoxia on the prenatal 14-16th days. Elevation of stress plasma corticosterone levels have been observed only in the females subjected to hypoxia on the prenatal 17-19th days. Hypoxia in the females and males results in the differential changes in functions of hippocampus, as well as of other brain areas involved in learning.

Keywords: prenatal hypoxia, hippocampus, neocortex, glucocorticoidreceptors, hypothalamіс pituitary adrenal axis, working memory

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