Role of hypothalamic-pituitary-adrenal-axis in affective disorders: Anti-depressant and anxiolytic activity of partial 5-HT1A agonist in adrenalectomised rats

Background: Depression is a neurological disorder characterized by sad mood, loss of pleasure, agitation and retardation. Though most relevant neuronal pathophysiology is characterized by decrease in monoamine namely; serotonin (5-HT), dopamine, noradrenaline level in central areas regulating mood a...

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Main Authors: Deepali Gupta, Mahesh Radhakrishnan, Shvetank Bhatt, Yeshwant Kurhe
Format: Article
Language:English
Published: SAGE Publishing 2013-01-01
Series:Indian Journal of Psychological Medicine
Subjects:
Online Access:http://www.ijpm.info/article.asp?issn=0253-7176;year=2013;volume=35;issue=3;spage=290;epage=298;aulast=Gupta
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author Deepali Gupta
Mahesh Radhakrishnan
Shvetank Bhatt
Yeshwant Kurhe
author_facet Deepali Gupta
Mahesh Radhakrishnan
Shvetank Bhatt
Yeshwant Kurhe
author_sort Deepali Gupta
collection DOAJ
description Background: Depression is a neurological disorder characterized by sad mood, loss of pleasure, agitation and retardation. Though most relevant neuronal pathophysiology is characterized by decrease in monoamine namely; serotonin (5-HT), dopamine, noradrenaline level in central areas regulating mood and behavior, it inadequately explains the exact mechanism involved. Buspirone (BUS), a partial 5-HT 1A receptor agonist has shown promising anti-depressant and anxiolytic properties in various pre-clinical and clinical studies, but the molecular and cellular mechanisms are still unclear. Objective: The aim of this study was to investigate, in vivo, the role of hypothalamic-pituitary-adrenal (HPA) axis dysregulation in pathophysiology of depression-related disorders and the anti-depressant like activity of BUS. To simulate HPA axis dysregulation, rats were subjected to bilateral adrenalectomy (ADX). Materials and Methods: We have analyzed effect of BUS (10 mg/kg, i.p.) in ADX and sham rats using open field, sucrose consumption, elevated plus maze and hyper-emotionality tests. Results: In all animal models tested, ADX rats exhibited significant depressive and anxiogenic states while BUS was effective in reversing the psychological diseased condition developed. Conclusion: Taken together, these data showed a prominent role of HPA axis in depression and neuronal mechanism of BUS as anti-depressant and anxiolytic agent. Moreover, our findings suggest that BUS can be a better candidate for stress related depression and anxiety.
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spelling doaj.art-6e68ef888bc049a791536ba65fda12a12022-12-21T23:36:34ZengSAGE PublishingIndian Journal of Psychological Medicine0253-71762013-01-0135329029810.4103/0253-7176.119501Role of hypothalamic-pituitary-adrenal-axis in affective disorders: Anti-depressant and anxiolytic activity of partial 5-HT1A agonist in adrenalectomised ratsDeepali GuptaMahesh RadhakrishnanShvetank BhattYeshwant KurheBackground: Depression is a neurological disorder characterized by sad mood, loss of pleasure, agitation and retardation. Though most relevant neuronal pathophysiology is characterized by decrease in monoamine namely; serotonin (5-HT), dopamine, noradrenaline level in central areas regulating mood and behavior, it inadequately explains the exact mechanism involved. Buspirone (BUS), a partial 5-HT 1A receptor agonist has shown promising anti-depressant and anxiolytic properties in various pre-clinical and clinical studies, but the molecular and cellular mechanisms are still unclear. Objective: The aim of this study was to investigate, in vivo, the role of hypothalamic-pituitary-adrenal (HPA) axis dysregulation in pathophysiology of depression-related disorders and the anti-depressant like activity of BUS. To simulate HPA axis dysregulation, rats were subjected to bilateral adrenalectomy (ADX). Materials and Methods: We have analyzed effect of BUS (10 mg/kg, i.p.) in ADX and sham rats using open field, sucrose consumption, elevated plus maze and hyper-emotionality tests. Results: In all animal models tested, ADX rats exhibited significant depressive and anxiogenic states while BUS was effective in reversing the psychological diseased condition developed. Conclusion: Taken together, these data showed a prominent role of HPA axis in depression and neuronal mechanism of BUS as anti-depressant and anxiolytic agent. Moreover, our findings suggest that BUS can be a better candidate for stress related depression and anxiety.http://www.ijpm.info/article.asp?issn=0253-7176;year=2013;volume=35;issue=3;spage=290;epage=298;aulast=Gupta5-HT 1A partial agonistadrenalectomydepression
spellingShingle Deepali Gupta
Mahesh Radhakrishnan
Shvetank Bhatt
Yeshwant Kurhe
Role of hypothalamic-pituitary-adrenal-axis in affective disorders: Anti-depressant and anxiolytic activity of partial 5-HT1A agonist in adrenalectomised rats
Indian Journal of Psychological Medicine
5-HT 1A partial agonist
adrenalectomy
depression
title Role of hypothalamic-pituitary-adrenal-axis in affective disorders: Anti-depressant and anxiolytic activity of partial 5-HT1A agonist in adrenalectomised rats
title_full Role of hypothalamic-pituitary-adrenal-axis in affective disorders: Anti-depressant and anxiolytic activity of partial 5-HT1A agonist in adrenalectomised rats
title_fullStr Role of hypothalamic-pituitary-adrenal-axis in affective disorders: Anti-depressant and anxiolytic activity of partial 5-HT1A agonist in adrenalectomised rats
title_full_unstemmed Role of hypothalamic-pituitary-adrenal-axis in affective disorders: Anti-depressant and anxiolytic activity of partial 5-HT1A agonist in adrenalectomised rats
title_short Role of hypothalamic-pituitary-adrenal-axis in affective disorders: Anti-depressant and anxiolytic activity of partial 5-HT1A agonist in adrenalectomised rats
title_sort role of hypothalamic pituitary adrenal axis in affective disorders anti depressant and anxiolytic activity of partial 5 ht1a agonist in adrenalectomised rats
topic 5-HT 1A partial agonist
adrenalectomy
depression
url http://www.ijpm.info/article.asp?issn=0253-7176;year=2013;volume=35;issue=3;spage=290;epage=298;aulast=Gupta
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