Effects of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats

Background: Many studies have shown that prenatal stress affects development of fetal brain. Objective: The aim of this study was to evaluate the effect of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats. Methods: This experimental study was performed...

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Main Authors: Z. Homauni Afshari, M. Sofiabadi, M. Dezfulian, H. Haghdost Yazdy
Format: Article
Language:fas
Published: Qazvin University of Medical Sciences & Health Services 2015-10-01
Series:The Journal of Qazvin University of Medical Sciences
Subjects:
Online Access:http://journal.qums.ac.ir/browse.php?a_id=1974&slc_lang=en&sid=1&ftxt=1
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author Z. Homauni Afshari
M. Sofiabadi
M. Dezfulian
H. Haghdost Yazdy
author_facet Z. Homauni Afshari
M. Sofiabadi
M. Dezfulian
H. Haghdost Yazdy
author_sort Z. Homauni Afshari
collection DOAJ
description Background: Many studies have shown that prenatal stress affects development of fetal brain. Objective: The aim of this study was to evaluate the effect of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats. Methods: This experimental study was performed on 16 male and 16 female Wistar rats in 2014. The rats were divided into four groups: male and female control groups, with natural pregnancy and two male and female treatment groups with exposure to combined stress (electromagnetic field, immobility and social stress) in the second and third weeks of embryonic development. The learning was evaluated using shuttle box setup. Data were analyzed using ANOVA and Tukey test. Findings: The prenatal combined stress caused decrease in the latency time to enter the dark chamber in male and female new born rats in post-training periods especially the second week compared to the control groups. Conclusion: With regards to the results, prenatal exposure to combined stress can reduce the memory retention of passive avoidance learning.
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spelling doaj.art-93532ebc83d348ab8a7bb20a54ec61872022-12-21T19:12:26ZfasQazvin University of Medical Sciences & Health ServicesThe Journal of Qazvin University of Medical Sciences1561-36662228-72132015-10-011941218Effects of prenatal exposure to combined stress on memory retention of passive avoidance learning in ratsZ. Homauni AfshariM. SofiabadiM. DezfulianH. Haghdost YazdyBackground: Many studies have shown that prenatal stress affects development of fetal brain. Objective: The aim of this study was to evaluate the effect of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats. Methods: This experimental study was performed on 16 male and 16 female Wistar rats in 2014. The rats were divided into four groups: male and female control groups, with natural pregnancy and two male and female treatment groups with exposure to combined stress (electromagnetic field, immobility and social stress) in the second and third weeks of embryonic development. The learning was evaluated using shuttle box setup. Data were analyzed using ANOVA and Tukey test. Findings: The prenatal combined stress caused decrease in the latency time to enter the dark chamber in male and female new born rats in post-training periods especially the second week compared to the control groups. Conclusion: With regards to the results, prenatal exposure to combined stress can reduce the memory retention of passive avoidance learning.http://journal.qums.ac.ir/browse.php?a_id=1974&slc_lang=en&sid=1&ftxt=1LearningPregnancyMemoryRats
spellingShingle Z. Homauni Afshari
M. Sofiabadi
M. Dezfulian
H. Haghdost Yazdy
Effects of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats
The Journal of Qazvin University of Medical Sciences
Learning
Pregnancy
Memory
Rats
title Effects of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats
title_full Effects of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats
title_fullStr Effects of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats
title_full_unstemmed Effects of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats
title_short Effects of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats
title_sort effects of prenatal exposure to combined stress on memory retention of passive avoidance learning in rats
topic Learning
Pregnancy
Memory
Rats
url http://journal.qums.ac.ir/browse.php?a_id=1974&slc_lang=en&sid=1&ftxt=1
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AT msofiabadi effectsofprenatalexposuretocombinedstressonmemoryretentionofpassiveavoidancelearninginrats
AT mdezfulian effectsofprenatalexposuretocombinedstressonmemoryretentionofpassiveavoidancelearninginrats
AT hhaghdostyazdy effectsofprenatalexposuretocombinedstressonmemoryretentionofpassiveavoidancelearninginrats