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Study M1098

Study name

Zhu YR 2023

Title

Untargeted and targeted mass spectrometry reveal the effects of theanine on the central and peripheral metabolomics of chronic unpredictable mild stress-induced depression in juvenile rats

Overall design

The aim of this study was to explore the antidepressive effect of L-theanine and its related mechanisms in the chronic unpredictable mild stress (CUMS) model of depression. Sprague-Dawley rats were divided into the following 5 groups (n = 6 in each group): (1) control group, (2) CUMS group, (3) L-theanine group (stress with L-theanine treatment at the dose of 10 mg/kg), (4) CUMS + fluoxetine group (stress with fluoxetine treatment at the dose of 2 mg/kg), and (5) CUMS + L-theanine group (stress with L-theanine treatment at the dose of 10 mg/kg). Untargeted reversed-phase liquid chromatography-quadrupole-time-of-flight mass spectrometry and targeted hydrophilic interaction liquid chromatography-triple quadrupole mass spectrometry were developed to analyze the metabolism changes in the serum and hippocampus to screen for potential biomarkers related to L-theanine treatment.

Study Type

Type1;

Type2;

Type3;

Data available

Unavailable

Organism

Rat; Sprague-Dawley rat;

Categories of depression

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

Healthy individuals; Healthy individuals; Healthy individuals;

Criteria for depression

Sucrose preference test, forced swimming test

Sample size

30

Tissue

Peripheral; Blood; Serum;

Central; Brain; Hippocampus;

Platform

MS-based; LC-MS: ACQUITY UPLCI-Class UPLC system with high-resolution Xevo G2 XS Q-Tof-MS/MS (Waters, Milford, MA, USA);

MS-based; LC-MS: Agilent 1260 HPLC system (Agilent, Palo Alto, CA, USA) with SCIEX Triple Quad 4500 liquid chromatography-tandem mass spectrometry system (SCIEX, Framingham, MA, USA);

PMID

36816539

DOI

10.1016/j.jpha.2022.10.001

Citation

Zhu Y, Wang F, Han J, et al. Untargeted and targeted mass spectrometry reveal the effects of theanine on the central and peripheral metabolomics of chronic unpredictable mild stress-induced depression in juvenile rats. J Pharm Anal. 2023 Jan;13(1):73-87.

Metabolite

L-Phenylalanine;

L-Tryptophan;

L-Glutamic acid;

L-Glutamine;

L-Tyrosine;

Uridine;

Threonic acid;

Phenylacetylglycine;

Serotonin;

Hypoxanthine;

Vanylglycol;

Xanthine;

Creatine;

Norepinephrine;

Dopamine;

Glycerophosphocholine;

Cytidine;

Corticosterone;

Sphingosine;

PS(18:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z));

5-Hydroxy-L-tryptophan;

PE(18:3(6Z,9Z,12Z)/22:6(4Z,7Z,10Z,13Z,16Z,19Z));

PI(18:0/20:4(5Z,8Z,11Z,14Z));

LysoPC(P-18:1(9Z));

LysoPC(22:1(13Z)/0:0);

Enkephalin L;

PC(24:1(15Z)/24:1(15Z));

5-Methyltetrahydrofolic acid;

PC(15:0/18:1(11Z));

PE(18:1(11Z)/22:4(7Z,10Z,13Z,16Z));

PC(20:1(11Z)/24:1(15Z));

SM(d18:0/18:1(9Z));

GlcCer(d18:1/24:1);

5b-cyprinol sulfate;