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:: Volume 24, Issue 3 (9-2016) ::
Journal of Ilam University of Medical Sciences 2016, 24(3): 40-48 Back to browse issues page
The Effect of Prenatal Exposures to Chronic Heterogeneous Stress on Anxiety-Like Behaviors in Adult Male Offspring in Rats
Hassan Azhdari zarmehri1 , Beniamin Alimohamadi2 , Hassan Abasian3 , Samad Nazemi4 , Mohammad Mohammadzadeh * 4
1- Dept of Basic sciences, Faculty of Medicine, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
2- Dept of Physiology, Faculty of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
3- Neuroscience Research Center, Kerman University of Medical Sciences, Kerman, Iran
4- .Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
Abstract:   (6071 Views)

Introduction: Prenatal exposure to physical stress could affect the behavioral function of offspring after birth and also in puberty.The aim of this study was to determine the effect of prenatal exposures to chronic heterogeneous stress on anxiety-like behaviors in adult male offspring in rats.

Materials & methods: In this experimental study, 10 pregnant rats were used in control and stress groups (n = 5). The Stress group was exposed to heterogeneous stress from the day of 9 to 19 of pregnancy (10 days). After the end of pregnancy and childbirth, 10 adult male offsprings from each group were selected, using the elevated plus-maze(EPM), the anxiety-like behaviors were studied.

Findings: Exposure to stress during pregnancy significantly increased the time spent (P<0.001) and the number of entries (P<0.01) into open arms of the elevated plus maze in the offspring's of stress group compared with the control group. While the time spent in the closed arms (P<0.05) significantly decreased than that in the control group. Time to stay in the center, the number of entries into closed arm and delayed to the first entry into the open arm showed no significant difference between the two groups.

Discussion & Conclusions: Exposure to stress during pregnancy reduced anxiety-like behaviors in rats. Probably, the impact of stress during pregnancy on the incidence of these behaviors can change depending on sex and age. More research in this area could help clarify the issue.

Keywords: Anxiety, EPM, Male Rat, Prenatal stress, Puberty
Full-Text [PDF 482 kb]   (1880 Downloads)    
Type of Study: Research | Subject: physiology
Received: 2015/01/17 | Accepted: 2015/12/26 | Published: 2016/09/11
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azhdari zarmehri H, Alimohamadi B, Abasian H, Nazemi S, Mohammadzadeh M. The Effect of Prenatal Exposures to Chronic Heterogeneous Stress on Anxiety-Like Behaviors in Adult Male Offspring in Rats. J. Ilam Uni. Med. Sci. 2016; 24 (3) :40-48
URL: http://sjimu.medilam.ac.ir/article-1-2448-en.html


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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 24, Issue 3 (9-2016) Back to browse issues page
مجله دانشگاه علوم پزشکی ایلام Journal of Ilam University of Medical Sciences
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