| Depressive and cardiovascular disease comorbidity in a rat model of social stress: a putative role for corticotropin-releasing factor. | |
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MedLine Citation:
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PMID: 22322324 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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RATIONALE: Depression is associated with medical comorbidities, particularly cardiovascular disease. However, mechanisms linking depression and cardiovascular disease remain unclear. OBJECTIVES: This study investigated whether the rat resident-intruder model of social stress would elicit behavioral dysfunctions and autonomic changes characteristic of psychiatric/cardiovascular comorbidity. Furthermore, the efficacy of the corticotropin-releasing factor-1 (CRF(1)) receptor antagonist, NBI-30775 (NBI), or the tricyclic antidepressant, desipramine (DMI), to prevent social stress-induced behavioral, neuroendocrine, and cardiovascular changes were evaluated. METHODS: Adult male rats were exposed to resident-intruder stress (seven consecutive days) and systemically administered NBI (10 mg/kg/7 days), DMI (10 mg/kg/14 days), or vehicle. The efficacy of NBI and DMI to alter the behavioral and neuroendocrine responses to social stress was assessed. Furthermore, their effects on stress-induced forced swim behavior (FST), bladder and adrenal weight, and heart rate variability (HRV) were examined. RESULTS: NBI, but not DMI, increased time spent in an upright, defensive posture and the latency to submit to the resident. Additionally, only NBI reduced social stress-induced adrenocorticotropic hormone and corticosterone release. Social stress increased FST immobility, caused bladder and adrenal hypertrophy, and decreased HRV. Both NBI and DMI blocked stress-induced increases in immobility during the FST. However, only NBI inhibited social stress-induced adrenal and bladder hypertrophy and decreases in heart rate variability. CONCLUSIONS: Rat resident-intruder stress paradigm models aspects of psychiatric/medical comorbidity. Furthermore, the CRF system may contribute to both the behavioral response during social stress and its behavioral and autonomic consequences, offering insight into potential therapy to treat these comorbid conditions. |
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Authors:
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Susan K Wood; Kile V McFadden; Dimitri Grigoriadis; Seema Bhatnagar; Rita J Valentino |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2012-02-10 |
Journal Detail:
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Title: Psychopharmacology Volume: 222 ISSN: 1432-2072 ISO Abbreviation: Psychopharmacology (Berl.) Publication Date: 2012 Jul |
Date Detail:
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Created Date: 2012-06-26 Completed Date: 2012-11-16 Revised Date: 2013-04-16 |
Medline Journal Info:
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Nlm Unique ID: 7608025 Medline TA: Psychopharmacology (Berl) Country: Germany |
Other Details:
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Languages: eng Pagination: 325-36 Citation Subset: IM |
Affiliation:
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Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA. susankwood2@gmail.com |
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Antidepressive Agents, Tricyclic / pharmacology Cardiovascular Diseases / complications, physiopathology* Corticotropin-Releasing Hormone / metabolism* Depression / complications, physiopathology* Desipramine / pharmacology Disease Models, Animal Male Pyrimidines / pharmacology Rats Rats, Sprague-Dawley Receptors, Corticotropin-Releasing Hormone / antagonists & inhibitors Social Behavior Stress, Psychological / complications, physiopathology* |
| Grant Support | |
ID/Acronym/Agency:
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MH06751/MH/NIMH NIH HHS; MH40008/MH/NIMH NIH HHS; MH58250/MH/NIMH NIH HHS; R01 MH040008/MH/NIMH NIH HHS; R01 MH058250/MH/NIMH NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Antidepressive Agents, Tricyclic; 0/CRF receptor type 1; 0/Pyrimidines; 0/R 121919; 0/Receptors, Corticotropin-Releasing Hormone; 50-47-5/Desipramine; 9015-71-8/Corticotropin-Releasing Hormone |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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