Evidence map›Paper›PMID 39849144›Full record

ArticleNature neuroscience2025

Propagation of pathologic α-synuclein from kidney to brain may contribute to Parkinson's disease.

Xin Yuan, Shuke Nie, Yingxu Yang, Congcong Liu, Danhao Xia, Lanxia Meng, Yue Xia, Hua Su, Chun Zhang, Lihong Bu and 5 more

Abstract read
PubMed Publisher
In one paragraph

Article in Nature neuroscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

41 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  16. The brain and heart-axis in neurodegeneration and cardiovascular disease.Journal of neural transmission (Vienna, Austria : 1996) · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors.

Xin Yuan *Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China.
Shuke Nie *Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China.
Yingxu Yang *Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, China.
Congcong LiuDepartment of Neurology, Renmin Hospital of Wuhan University, Wuhan, China.ORCID http://orcid.org/0000-0002-9942-3024
Danhao XiaDepartment of Neurology, Renmin Hospital of Wuhan University, Wuhan, China.ORCID http://orcid.org/0000-0001-9505-2521
Lanxia MengDepartment of Neurology, Renmin Hospital of Wuhan University, Wuhan, China.
Yue XiaDepartment of Urology, Renmin Hospital of Wuhan University, Wuhan, China.
Hua SuDepartment of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Chun ZhangDepartment of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.ORCID http://orcid.org/0000-0003-3565-8024
Lihong BuPET-CT/MRI Center, Faculty of Radiology and Nuclear Medicine, Renmin Hospital of Wuhan University, Wuhan, China.
Min DengDepartment of Neurology, Renmin Hospital of Wuhan University, Wuhan, China.
Keqiang YeFaculty of Life and Health Sciences, Shenzhen Institute of Advanced Technology, Shenzhen, China.
Jing XiongDepartment of Neurology, Renmin Hospital of Wuhan University, Wuhan, China.
Liam ChenDepartment of Laboratory Medicine and Pathology, University of Minnesota Medical School, Minneapolis, MN, USA.
Zhentao ZhangDepartment of Neurology, Renmin Hospital of Wuhan University, Wuhan, China. zhentaozhang@whu.edu.cn.ORCID http://orcid.org/0000-0001-6708-1472

Funding

National Natural Science Foundation of China (National Science Foundation of China) 82271447National Natural Science Foundation of China (National Science Foundation of China) 82301430Natural Science Foundation of Hubei Province (Hubei Provincial Natural Science Foundation) 2021CFB451
6 · The paper itself

Abstract

The pathogenesis of Lewy body diseases (LBDs), including Parkinson's disease (PD), involves α-synuclein (α-Syn) aggregation that originates in peripheral organs and spreads to the brain. PD incidence is increased in individuals with chronic renal failure, but the underlying mechanisms remain unknown. Here we observed α-Syn deposits in the kidneys of patients with LBDs and in the kidney and central nervous system of individuals with end-stage renal disease without documented LBDs. In male mice, we found that the kidney removes α-Syn from the blood, which is reduced in renal failure, causing α-Syn deposition in the kidney and subsequent spread into the brain. Intrarenal injection of α-Syn fibrils induces the propagation of α-Syn pathology from the kidney to the brain, which is blocked by renal denervation. Deletion of α-Syn in blood cells alleviates pathology in α-Syn A53T transgenic mice. Thus, the kidney may act as an initiation site for pathogenic α-Syn spread, and compromised renal function may contribute to the onset of LBDs.

Indexed as

alpha-SynucleinBrainKidneyParkinson DiseaseAgedAnimalsDisease Models, AnimalFemaleHumansKidney Failure, ChronicLewy Body DiseaseMaleMiceMice, Inbred C57BLMice, Transgenicalpha-Synuclein

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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.