Evidence map›Paper›PMID 33907041›Full record

ArticleNeural regeneration research2021

P2X4 receptor participates in autophagy regulation in Parkinson's disease.

Xue Zhang, Jing Wang, Jin-Zhao Gao, Xiao-Na Zhang, Kai-Xin Dou, Wan-Da Shi, An-Mu Xie

Open access · goldAbstract read
In one paragraph

Article in Neural regeneration research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

14 citing papers in PubMed, 27 citations in OpenAlex.

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  6. Species Differences of P2X4 Receptor Modulators.ACS pharmacology & translational science · 2025
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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.

Xue ZhangDepartment of Neurology, Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
Jing WangDepartment of Neurology, Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
Jin-Zhao GaoDepartment of Neurology, Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
Xiao-Na ZhangDepartment of Neurology, Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
Kai-Xin DouDepartment of Neurology, Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
Wan-Da ShiDepartment of Neurology, Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
An-Mu XieDepartment of Neurology, Affiliated Hospital of Qingdao University; Neurological Regulation Institute of Qingdao University, Qingdao, Shandong Province, China.
Qingdao University · CNAffiliated Hospital of Qingdao University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Dysfunctional autophagy often occurs during the development of neurodegenerative diseases, such as Parkinson's disease, Huntington's disease, and Alzheimer's disease. The purinergic P2X4 receptor is an ATP-gated ion channel that is widely expressed in the microglia, astrocytes, and neurons of the central and peripheral nervous systems. P2X4R is involved in the regulation of cellular excitability, synaptic transmission, and neuroinflammation. However, the role played by P2X4R in Parkinson's disease remains poorly understood. Rat models of Parkinson's disease were established by injecting 6-hydroxydopamine into the substantia nigra pars compacta. P2X4R-targeted small interfering RNA (siRNA) was injected into the same area 1 week before injury induction to inhibit the expression of the P2X4 receptor. The results showed that the inhibition of P2X4 receptor expression in Parkinson's disease model rats reduced the rotation behavior induced by apomorphine treatment, increased the latency on the rotarod test, and upregulated the expression of tyrosine hydroxylase, brain-derived neurotrophic factor, LC3-II/LC3-I, Beclin-1, and phosphorylated tropomyosin receptor kinase B (TrkB) in brain tissue, while simultaneously reducing p62 levels. These findings suggest that P2X4 receptor activation might inhibit neuronal autophagy through the regulation of the brain-derived neurotrophic factor/TrkB signaling pathway, leading to dopaminergic neuron damage in the substantia nigra and the further inhibition of P2X4 receptor-mediated autophagy. These results indicate that P2X4 receptor might serve as a potential novel target for the treatment of Parkinson's disease. This study was approved by the Animal Ethics Committee of Affiliated Hospital of Qingdao University (approval No. QYFYWZLL26119) on April 12, 2016.

Indexed as

6-hydroxydopamineapomorphineautophagybrain-derived neurotrophic factordopaminergic neuronsneuron degenerationP2X4RParkinson's diseaseTrkB

Identifiers

PMID33907041
PMCPMC8374561
OpenAlexW3158366518

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

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.