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Study M1138

Study name

Carneiro CA 2022

Title

Unpredictable subchronic stress induces depressive-like behavior: behavioral and neurochemical evidences

Overall design

The aim of this study was to evaluate whether unpredictable subchronic stress (USS) model could induce depressive-like behavior and neurochemical changes related to depression, and be prevented by the use of antidepressants. Swiss mice were divided into the following 3 groups: (1) control group (non-stress with vehicle treatment), (2) unpredictable subchronic stress group (stress with vehicle treatment), and (3) unpredictable subchronic stress + imipramine group (stress with imipramine treatment at the dose of 15 mg/kg). The USS stress procedure lasted for 2 weeks, and drugs were administered via intragastric during the last 6 days of the model building period. The levels of neurotransmitters in the hippocampus were measured by GC-MS (n= 7-8 in each group).

Study Type

Type1;

Type2;

Data available

Unavailable

Organism

Mouse; Swiss mouse;

Categories of depression

Animal model; Chronic mild stress model; Chronic mild stress model;

Criteria for depression

Tail suspension test

Sample size

22

Tissue

Central; Brain; Hippocampus;

Platform

MS-based; GC-MS: Shimadzu QP2010 Ultra GC-MS system (Shimadzu Corporation, Kyoto, Japan);

PMID

N/A

DOI

10.1037/pne0000286

Citation

Carneiro CA, Santos AMF, Guedes EC, et al. Unpredictable subchronic stress induces depressive-like behavior: behavioral and neurochemical evidences. Psychology and Neuroscience 2022;15(3):236-250.

Metabolite

Gamma-Aminobutyric acid;

L-Tryptophan;

5-Hydroxyindoleacetic acid;

5-HIAA/5-HT ratio;

Dopamine;

Serotonin/Tryptophan ratio;

Corticosterone;

3,4-Dihydroxybenzeneacetic acid/Dopamine ratio;