Evidence map›Paper›PMID 39923073›Full record

ArticleLipids in health and disease2025

Genetic evidence for the liver-brain axis: lipid metabolism and neurodegenerative disease risk.

Zeyu Wang, Zixiao Yin, Guangyong Sun, Dong Zhang, Jianguo Zhang

Abstract read
In one paragraph

Article in Lipids in health and disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

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

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  12. Integrating causal human genetics andFrontiers in molecular biosciences · 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

5 authors.

Zeyu Wang *Department of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China.
Zixiao Yin *Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Guangyong SunDepartment of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China.
Dong ZhangDepartment of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China. zhangd2010@hotmail.com.
Jianguo ZhangDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China. zjguo73@126.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe liver‒brain axis is critical in neurodegenerative diseases (NDs), with lipid metabolism influencing neuroinflammation and microglial function. A systematic investigation of the genetic relationship between lipid metabolism abnormalities and ND, namely, Alzheimer's disease (AD), Parkinson's disease (PD), multiple sclerosis (MS), and amyotrophic lateral sclerosis (ALS), is lacking. To assess potential causal links between ND and six lipid parameters, two-sample Mendelian randomization (MR) was used.

methodsLarge-scale European ancestry GWAS data for lipid parameters and ND (AD, ALS, PD, and MS) were used. Genetic variants demonstrating significant correlations (P < 5 × 10

resultsMR via the inverse-variance weighted method revealed causal effects of cholesterol (CHOL, OR = 1.10, 95% CI: 1.03-1.18, P = 4.23 × 10⁻

conclusionsHigher CHOL and LDLC levels were associated with increased ALS risk, suggesting a potential causal link, and supporting the liver‒brain axis hypothesis in ND. Current genetic evidence does not support a significant role for lipid metabolism in PD and MS etiology, suggesting the relationship between lipid metabolism and other NDs may be more complex and warrants further investigation.

Indexed as

BrainLipid MetabolismLiverNeurodegenerative DiseasesAlzheimer DiseaseAmyotrophic Lateral SclerosisCholesterolCholesterol, LDLFemaleGenetic Predisposition to DiseaseGenome-Wide Association StudyHumansMaleMendelian Randomization AnalysisMultiple SclerosisParkinson DiseaseCholesterolCholesterol, LDLCausalityGenetic VariationLipid MetabolismMendelian Randomization AnalysisNeurodegenerative Diseases

Identifiers

PMID39923073
PMCPMC11806572

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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.