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Study M922

Study name

Yan L 2022

Title

Platycladus orientalis seed extract as a potential triple reuptake MAO inhibitor rescue depression phenotype through restoring monoamine neurotransmitters

Overall design

The aim of this study was to investigate the mechanism of action of the seed extracts of P. orientalis (S4) to rescue depressive behavior in a chronic unpredicted mild stress (CUMS)-induced model in rats. Sprague-Dawley rats were divided into the following 5 groups (n = 10 in each group): (1) control group, (2) CUMS group, (3) CUMS + fluoxetine group (stressor plus fluoxetine treatment at the dose of 10 mg/kg), (4) CUMS + middle dose of P. orientalis group (stressor plus P. orientalis treatment at the dose of 33 mg/kg/d), and (5) CUMS + high dose of P. orientalis group (stressor plus P. orientalis treatment at the dose of 100 mg/kg/d). The CUMS stress procedure lasted for 3 weeks, and drugs were administered via intragastric once per day for 6 weeks (including 3-week pretreatment). The main monoamine neurotransmitters and their metabolite concentrations in the hippocampus, prefrontal cortex and dorsal raphe nucleus were measured by rapid resolution liquid chromatography coupled with triple quadrupole tandem mass spectrometry (n =5/group).

Study Type

Type1;

Type2;

Data available

Unavailable

Organism

Rat; Sprague-Dawley rat;

Categories of depression

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

Criteria for depression

Sucrose preference test, forced swimming test, tail-suspension test

Sample size

25

Tissue

Central; Brain; Hippocampus;

Central; Brain; Prefrontal cortex;

Central; Brain; Dorsal raphe nucleus;

Platform

MS-based; LC-MS: 1200SL RRLC-6410 Triple Quad Mass Spectrometer (Agilent Technology, Santa Clara, CA, USA);

PMID

35489661

DOI

10.1016/j.jep.2022.115302

Citation

Yan L, Wang J, He X, et al. Platycladus orientalis seed extract as a potential triple reuptake MAO inhibitor rescue depression phenotype through restoring monoamine neurotransmitters. J Ethnopharmacol. 2022 Apr 28:115302.

Metabolite

Serotonin;

Norepinephrine;

Dopamine;

3,4-Dihydroxybenzeneacetic acid/Dopamine ratio;

Serotonin/5-Hydroxyindoleacetic acid ratio;

Norepinephrine/Vanylglycol ratio;