Evidence map›Paper›PMID 37204481›Full record

ArticleCellular and molecular life sciences : CMLS2023

Dietary intake of α-ketoglutarate ameliorates α-synuclein pathology in mouse models of Parkinson's disease.

Wenlong Zhang, Liuyan Ding, Mengran Zhang, Shaohui Zheng, Runfang Ma, Junwei Gong, Hengxu Mao, Huaxi Xu, Pingyi Xu, Yunlong Zhang

Open access · greenAbstract read
In one paragraph

Article in Cellular and molecular life sciences : CMLS, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 4% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
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  15. Gut-directed therapy in Parkinson's disease.Frontiers in pharmacology · 2024
    Review
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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

10 authors at 4 institutions in 1 country.

Wenlong Zhang *Department of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China.
Liuyan Ding *Department of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China.
Mengran Zhang *Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
Shaohui ZhengKey Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
Runfang MaKey Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
Junwei GongKey Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
Hengxu MaoDepartment of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China.
Huaxi XuInstitute for Brain Science and Disease, Chongqing Medical University, Chongqing, 400016, China.
Pingyi XuDepartment of Neurology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China. pingyixu@sina.com.
Yunlong ZhangKey Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China. ylzhang@gzhmu.edu.cn.ORCID http://orcid.org/0000-0002-2447-9138
First Affiliated Hospital of Guangzhou Medical University · CNWestlake University · CNChongqing Medical University · CNGuangzhou Medical University · CN

Funding

Central government guiding local science and technology development projects ZYYD2022C17China Postdoctoral Science Foundation 2021M700951Guangdong Basic and Applied Basic Research Foundation 2022B1515230004Guangzhou Medical University JCXKJS2022A09Key Research and Development Program of Guangzhou 2023B03J0631Municipal University (Faculty) joint funding project 202102010010National Natural Science Foundation of China 81870856National Natural Science Foundation of China 81870992National Natural Science Foundation of China 82071416National Natural Science Foundation of China 82101325National Natural Science Foundation of China 82174468Science and Technology Planning Project of Shenzhen Municipality 201904010238
6 · The paper itself

Abstract

Parkinson's disease (PD) is a progressive movement disorder characterized by dopaminergic (DA) neuron degeneration and the existence of Lewy bodies formed by misfolded α-synuclein. Emerging evidence supports the benefits of dietary interventions in PD due to their safety and practicality. Previously, dietary intake of α-ketoglutarate (AKG) was proved to extend the lifespan of various species and protect mice from frailty. However, the mechanism of dietary AKG's effects in PD remains undetermined. In the present study, we report that an AKG-based diet significantly ameliorated α-synuclein pathology, and rescued DA neuron degeneration and impaired DA synapses in adeno-associated virus (AAV)-loaded human α-synuclein mice and transgenic A53T α-synuclein (A53T α-Syn) mice. Moreover, AKG diet increased nigral docosahexaenoic acid (DHA) levels and DHA supplementation reproduced the anti-α-synuclein effects in the PD mouse model. Our study reveals that AKG and DHA induced microglia to phagocytose and degrade α-synuclein via promoting C1q and suppressed pro-inflammatory reactions. Furthermore, results indicate that modulating gut polyunsaturated fatty acid metabolism and microbiota Lachnospiraceae_NK4A136_group in the gut-brain axis may underlie AKG's benefits in treating α-synucleinopathy in mice. Together, our findings propose that dietary intake of AKG is a feasible and promising therapeutic approach for PD.

Indexed as

Parkinson DiseaseSynucleinopathiesAnimalsDisease Models, AnimalDopamineEatingHumansKetoglutaric AcidsMiceMice, TransgenicNerve DegenerationDopamineKetoglutaric AcidsAKGDA neuron degenerationDHAGut-brain axisParkinson’s diseaseα-synuclein

Identifiers

PMID37204481
PMCPMC11073026
OpenAlexW4377093940

What OpenQuestion holds

Textmetadata
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.