Evidence map›Paper›PMID 37948105›Full record

ArticleBrain and behavior2023

Electroacupuncture promotes synaptic plasticity in rats with chronic inflammatory pain-related depression by upregulating BDNF/TrkB/CREB signaling pathway.

Pu Yang, Haiyan Chen, Tian Wang, Hong Su, Jing Li, Yujun He, Shengyong Su

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 8 pooled it
10.5field-weighted citation impact, top 1% 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

50 citing papers in PubMed, 8 syntheses or guidelines pooled it, 60 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Pu YangThe First School of Clinical Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, China.ORCID 0000-0002-6231-4721
Haiyan ChenDepartment of Nursing, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.
Tian WangThe First School of Clinical Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, China.
Hong SuThe First School of Clinical Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, China.ORCID 0009-0001-7316-970X
Jing LiThe First School of Clinical Medicine, Guangxi University of Chinese Medicine, Nanning, Guangxi, China.
Yujun HeFaculty of Acupuncture, Moxibustion and Tuina, Guangxi University of Chinese Medicine, Nanning, Guangxi, China.
Shengyong SuDepartment of Acupuncture and Moxibustion, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi, China.
Guangxi University · CNThe First Affiliated Hospital of Guangxi University of Traditional Chinese Medicine · CN

Funding

National Natural Science Foundation of China 81960895National Natural Science Foundation of China 82160934The Innovation Project of Guangxi Graduate Education YCBXJ2023023
6 · The paper itself

Abstract

backgroundChronic inflammatory pain (CIP) frequently coincides with depression among patients. The onset and development of pain and depression are associated with altered neural synaptic plasticity. Electroacupuncture (EA) can effectively relieve CIP and depression. However, the underlying mechanisms have not been fully illustrated.

objectiveTo explore whether EA can relieve CIP and depression by regulating hippocampal synaptic plasticity, and the present study offers foundational evidence for the efficacy of EA in treating CIP-related depression (CIPD).

methodsRats were divided into four groups: 0.9% normal saline group, complete Freund's adjuvant (CFA) group, CFA + duloxetine group, and CFA + EA group. Pain hypersensitivity was detected by mechanical withdrawal threshold and thermal paw withdrawal latency, and the depression level was gauged using the open field test, the sucrose preference test, and the forced swimming test. The morphology of the hippocampal neurons was observed using Nissl staining. The protein expression levels of synuclein (Syn), postsynaptic density protein-95 (PSD-95), brain-derived neurotrophic factors (BDNFs), tyrosine-protein kinase B (TrKB), p-TrkB, cAMP response element binding protein (CREB), and p-CREB were measured by western blotting and immunofluorescence staining. BDNF and TrkB mRNA expression were detected using quantitative real-time polymerase chain reaction (PCR) (qRT-PCR). The content of 5-hydroxytryptamine (5-HT) and γ-aminobutyric acid (GABA) was detected using enzyme-linked immunosorbent assay, and the glutamic acid (Glu) content was determined using the ultraviolet colorimetry method. The hippocampal neuron ultrastructure was observed using transmission electron microscopy.

resultsEA could alleviate CIP and related depressive behaviors as well as protect the hippocampal neuronal structure from damage and regulate 5-HT/GABA/Glu levels in the hippocampus. Additionally, EA could significantly increase the expression of synapse-associated proteins such as PSD-95 and Syn by activating the BDNF/TrKB/CREB signaling pathway.

conclusionEA improves pain and depressive behaviors in CIPD rats, and the mechanism may be related to synaptic plasticity mediated by the BDNF/TrKB/CREB signaling pathway.

Indexed as

Chronic PainElectroacupunctureAnimalsBrain-Derived Neurotrophic FactorCyclic AMP Response Element-Binding ProteinDepressiongamma-Aminobutyric AcidHippocampusHumansNeuronal PlasticityRatsSerotoninSignal TransductionBrain-Derived Neurotrophic FactorCyclic AMP Response Element-Binding Proteingamma-Aminobutyric AcidSerotoninBDNF/TrKB/CREB-signaling pathwaychronic inflammatory paindepressionelectroacupuncturehippocampussynaptic plasticity

Identifiers

PMID37948105
PMCPMC10726860
OpenAlexW4388576108

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.