Effects of Restraint Stress and Nitric Oxide Synthase Inhibition on Learning and Strategy Preference in Young Adult Male Rats
Objective: The aim of this study was to investigate the effects of restraint stress and nitric oxide synthase (NOS) inhibition by NωNitro-L-Arginine (LNA) on learning and strategy preference. Material and Methods: Rats were randomly divided into four groups (Saline, Saline+Stress, LNA, LNA+Stress)....
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Galenos Publishing House
2012-12-01
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doaj-998b09228bcd4757b4d001d9ee50c7c22020-11-25T01:10:16ZengGalenos Publishing HouseBalkan Medical Journal2146-31232146-31312012-12-01294376380Effects of Restraint Stress and Nitric Oxide Synthase Inhibition on Learning and Strategy Preference in Young Adult Male RatsLütfiye KanıtYusuf Hakan DoğanMelih DağdevirenObjective: The aim of this study was to investigate the effects of restraint stress and nitric oxide synthase (NOS) inhibition by NωNitro-L-Arginine (LNA) on learning and strategy preference. Material and Methods: Rats were randomly divided into four groups (Saline, Saline+Stress, LNA, LNA+Stress). Stress was applied for one hour in glass cylinders during 13 days. One hour after this stress application, water maze experiments were started. Injections (saline 1 ml/kg or 50 mg/kg LNA) were given 10 minutes before each experiment. The platform was kept visible or hidden (on the 4th, 8th, 12th days) at the same position. On the 13th day the platform was located on the opposite quadrant. Results: Saline groups exhibited significantly better performances (F(1.31)=174.038 p<0.05) at the beginning compared to the NOS inhibited groups. For initial hidden platform days; stress was determined as an impairment factor (F(1.31)=5.190 p=0.012). At the end, acquisition occurred on both visible and hidden platform days for all groups. There was no significant strategy preference difference between the groups.Development of the stress and NOS inhibition impairments were seen, particularly at different periods of the acquisition. Conclusion: NOS inhibition did not worsen restraint stress-induced learning impairments in rats. Lack of effect may be explained by the antidepressive consequences of NOS inhibition.http://www.balkanmedicaljournal.org/text.php3?id=905LearningNOS inhibitionrestraint stressstrategy preferencewater maze |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lütfiye Kanıt Yusuf Hakan Doğan Melih Dağdeviren |
spellingShingle |
Lütfiye Kanıt Yusuf Hakan Doğan Melih Dağdeviren Effects of Restraint Stress and Nitric Oxide Synthase Inhibition on Learning and Strategy Preference in Young Adult Male Rats Balkan Medical Journal Learning NOS inhibition restraint stress strategy preference water maze |
author_facet |
Lütfiye Kanıt Yusuf Hakan Doğan Melih Dağdeviren |
author_sort |
Lütfiye Kanıt |
title |
Effects of Restraint Stress and Nitric Oxide Synthase Inhibition on Learning and Strategy Preference in Young Adult Male Rats |
title_short |
Effects of Restraint Stress and Nitric Oxide Synthase Inhibition on Learning and Strategy Preference in Young Adult Male Rats |
title_full |
Effects of Restraint Stress and Nitric Oxide Synthase Inhibition on Learning and Strategy Preference in Young Adult Male Rats |
title_fullStr |
Effects of Restraint Stress and Nitric Oxide Synthase Inhibition on Learning and Strategy Preference in Young Adult Male Rats |
title_full_unstemmed |
Effects of Restraint Stress and Nitric Oxide Synthase Inhibition on Learning and Strategy Preference in Young Adult Male Rats |
title_sort |
effects of restraint stress and nitric oxide synthase inhibition on learning and strategy preference in young adult male rats |
publisher |
Galenos Publishing House |
series |
Balkan Medical Journal |
issn |
2146-3123 2146-3131 |
publishDate |
2012-12-01 |
description |
Objective: The aim of this study was to investigate the effects of restraint stress and nitric oxide synthase (NOS) inhibition by NωNitro-L-Arginine (LNA) on learning and strategy preference. Material and Methods: Rats were randomly divided into four groups (Saline, Saline+Stress, LNA, LNA+Stress). Stress was applied for one hour in glass cylinders during 13 days. One hour after this stress application, water maze experiments were started. Injections (saline 1 ml/kg or 50 mg/kg LNA) were given 10 minutes before each experiment. The platform was kept visible or hidden (on the 4th, 8th, 12th days) at the same position. On the 13th day the platform was located on the opposite quadrant. Results: Saline groups exhibited significantly better performances (F(1.31)=174.038 p<0.05) at the beginning compared to the NOS inhibited groups. For initial hidden platform days; stress was determined as an impairment factor (F(1.31)=5.190 p=0.012). At the end, acquisition occurred on both visible and hidden platform days for all groups. There was no significant strategy preference difference between the groups.Development of the stress and NOS inhibition impairments were seen, particularly at different periods of the acquisition. Conclusion: NOS inhibition did not worsen restraint stress-induced learning impairments in rats. Lack of effect may be explained by the antidepressive consequences of NOS inhibition. |
topic |
Learning NOS inhibition restraint stress strategy preference water maze |
url |
http://www.balkanmedicaljournal.org/text.php3?id=905 |
work_keys_str_mv |
AT lutfiyekanıt effectsofrestraintstressandnitricoxidesynthaseinhibitiononlearningandstrategypreferenceinyoungadultmalerats AT yusufhakandogan effectsofrestraintstressandnitricoxidesynthaseinhibitiononlearningandstrategypreferenceinyoungadultmalerats AT melihdagdeviren effectsofrestraintstressandnitricoxidesynthaseinhibitiononlearningandstrategypreferenceinyoungadultmalerats |
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