Evidence map›Paper›PMID 28629384›Full record

ArticleBMC complementary and alternative medicine2017

Involvement of the glutamate/glutamine cycle and glutamate transporter GLT-1 in antidepressant-like effects of Xiao Yao san on chronically stressed mice.

Xiu-Fang Ding, Yue-Hua Li, Jia-Xu Chen, Long-Ji Sun, Hai-Yan Jiao, Xin-Xin Wang, Yan Zhou

RetractedOpen access · hybridAbstract readRetracted Publication
In one paragraph

Article in BMC complementary and alternative medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.3field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 42 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Xiu-Fang DingSchool of Basic Medical Science, Beijing University of Chinese Medicine, Beijing, 100029, China.
Yue-Hua LiBeijing Chaoyang Hospital, Capital Medical University, Beijing, 100043, China.
Jia-Xu ChenSchool of Basic Medical Science, Beijing University of Chinese Medicine, Beijing, 100029, China. chenjiaxu@hotmail.com.ORCID http://orcid.org/0000-0002-5570-6233
Long-Ji SunSchool of Basic Medical Science, Beijing University of Chinese Medicine, Beijing, 100029, China.
Hai-Yan JiaoSchool of Basic Medical Science, Beijing University of Chinese Medicine, Beijing, 100029, China.
Xin-Xin WangSchool of Basic Medicine, Henan University of TCM, Henan, 450046, Henan, China.
Yan ZhouSchool of Basic Medical Science, Beijing University of Chinese Medicine, Beijing, 100029, China.
Beijing University of Chinese Medicine · CNCapital Medical University · CNHenan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundXiao Yao San (XYS) is an herbal prescription which is used in the treatment of depression for thousands of years from Song dynasty in China (960-1127 A.D.), and is the bestselling and most popular herb formula for treating major depression. This study aimed to assess the chronic antidepressant effects of XYS and fluoxetine in depressed mice induced by chronic unpredictable mild stress (CUMS) and its association with  alterations in glutamate/glutamine cycle and glutamate transporters.

methodsMice in the control and model group were given 0.5 ml physiological saline by intragastric administration. Mice in two treatment groups were given XYS (0.25 g/kg/d) and fluoxetine (2.6 mg/kg/d), respectively. The depressive-like behaviors such as forced swim test (FST), sucrose preference test (SPT) and novelty-suppressed feeding (NSF) test were measured after mice exposed to CUMS for 21 days. Body weight, contents of glutamate and glutamine, glutamine/glutamate ratio that is usually thought to reflect glutamate/glutamine cycle, and the protein and mRNA expressions of glutamate transporters (excitatory amino acid transporter 1-2,GLAST/EAAT1 and GLT-1/EAAT2) were measured. The immunoreactivities of GLAST and GLT-1 in the hippocampus were also investigated.

resultsAfter CUMS exposure, mice exhibited depressive-like behaviors, body weight loss, increased glutamate level, decreased glutamine level, elevated glutamine/glutamate ratio, decreased GLT-1 protein expression and mRNA level, and decreased average optical density (AOD) of GLT-1 in the CA1, CA3 and DG in the hippocampus. These abnormalities could be effectively reversed by XYS or fluoxetine treatment. In addition, the study also found that GLAST expression in the hippocampus could not be altered by 21-d CUMS.

conclusionThe studies indicated that XYS may have therapeutic actions on depression -like behavior s induced by CUMS in mice possibly mediated by modulation of glutamate/glutamine cycle and glutamate transporter GLT-1 in the hippocampus.

Indexed as

AnimalsAntidepressive AgentsChinaDrugs, Chinese HerbalExcitatory Amino Acid Transporter 1Excitatory Amino Acid Transporter 2Glutamic AcidGlutamineHumansMajor Depressive DisorderMaleMiceAntidepressive AgentsDrugs, Chinese HerbalExcitatory Amino Acid Transporter 1Excitatory Amino Acid Transporter 2Glutamic AcidGlutamineSlc1a2 protein, mouseSlc1a3 protein, mousexiaoyaoAnimal researchDepressionHerbal medicine

Identifiers

PMID28629384
PMCPMC5477120
OpenAlexW2666299810

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.