1 Ocak 2016 Dergi makalesi Açık Erişim

Groeger, Nicole; Bock, Joerg; Goehler, Daniela; Blume, Nicole; Lisson, Nicole; Poeggel, Gerd; Braun, Katharina

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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Groeger, Nicole</dc:creator>
  <dc:creator>Bock, Joerg</dc:creator>
  <dc:creator>Goehler, Daniela</dc:creator>
  <dc:creator>Blume, Nicole</dc:creator>
  <dc:creator>Lisson, Nicole</dc:creator>
  <dc:creator>Poeggel, Gerd</dc:creator>
  <dc:creator>Braun, Katharina</dc:creator>
  <dc:date>2016-01-01</dc:date>
  <dc:description>The present study in juvenile rats investigated a "two-hit model" to test the impact of prenatal stress exposure ("first hit") on the regulation of the synaptic plasticity immediate early genes Arc and Egr1 in response to a second neonatal stressor ("second hit") in a sex-specific manner. Three stress-exposed animal groups were compared at the age of 21 days in relation to unstressed controls (CON): preS animals were exposed to various unpredictable stressors during the last gestational trimester; postS animals were exposed to 45 min restraint stress at postnatal day 21, pre/postS animals were exposed to a combination of pre- and postnatal stress as described for the two previous groups. The postS and pre/postS groups were killed 2 h after exposure to the postnatal stressor, males and females were separately analyzed. In line with our hypothesis we detected sex-specific stress sensitivity for both analyzed proteins. Males did not show any significant changes in Arc expression irrespective of the stress condition. In contrast, females, which had been pre-exposed to prenatal stress, displayed an "amplified" Arc upregulation in response to postnatal stress (pre/postS group) compared to unstressed controls, which may reflect a "sensitization" effect of prenatal stress. For Egr1, the females did not show any stress-induced regulation irrespective of the stress condition, whereas in males, which were pre-exposed to prenatal stress, we observed a "protective" effect of prenatal stress on postnatal stress-induced downregulation of Egr1 expression (pre/postS group), which may indicate that prenatal stress exposure may induce "resilience".</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/54537</dc:identifier>
  <dc:identifier>oai:zenodo.org:54537</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>BRAIN STRUCTURE &amp; FUNCTION 221(1) 679-685</dc:source>
  <dc:title>Stress in utero alters neonatal stress-induced regulation of the synaptic plasticity proteins Arc and Egr1 in a sex-specific manner</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>