Viewing Study NCT00944996



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Last Modification Date: 2024-10-26 @ 10:08 AM
Study NCT ID: NCT00944996
Status: COMPLETED
Last Update Posted: 2012-07-26
First Post: 2009-07-19

Brief Title: Assessment of Pituitary Adenylate Cyclase Activating Polypeptide-Brain Derived Neurotrophic Factor PACAP-BDNF Signaling System Involvement in Etiology and Treatment of Major Depression
Sponsor: Tirat Carmel Mental Health Center
Organization: Tirat Carmel Mental Health Center

Study Overview

Official Title: Assessment of PACAP-BDNF Signaling System Involvement in Etiology and Treatment of Major Depression
Status: COMPLETED
Status Verified Date: 2012-07
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: The neuropeptide Pituitary Adenylate Cyclase Activating Polypeptide PACAP and its receptors PAC1 and VPAC2 are widely expressed in the nervous system The investigators found that PACAP treatment of neuronal cell cultures increases expression of Brain Derived Neurotrophic Factor BDNF that plays an important role in the etiology of psychiatric disorders and action of antidepressants For the first time the investigators demonstrated that treatment by Paroxetine and Citalopram significantly decreases PAC1 and VPAC2 and upregulates PACAP mRNA expression whereas Imipramine shows an opposite effect Moreover PACAP PAC1 and VPAC2 expression is highly correlated with BDNF expression Their in vivo studies show that Imipramine reduces BDNF and increases PAC1 mRNA expression in murine hippocampus suggesting that antidepressants may affect neuronal plasticity through PACAP-BDNF interactions Based on their observations in experimental systems the investigators hypothesize that PACAP signaling system may be involved in the etiology of depression and mechanism of antidepressant action The investigators will evaluate this hypothesis by examining serum PACAP levels effect of antidepressants on PACAP levels and gene polymorphisms of PACAP and its receptors in major depressive disorder patients This study will enhance the investigators understanding of PACAPs role in the etiology of depression and antidepressant treatment and will provide a basis to evaluate PACAP pathway as a potential target for diagnostics and novel antidepressants drug discovery
Detailed Description: None

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None
Secondary IDs
Secondary ID Type Domain Link
040-2008 None None None
920080174 None None None