Evidence map›Paper›PMID 41081949›Full record

ArticleBiogerontology2025

Genetically predicted causal links between gut microbiota and biological aging phenotypes in age-related macular degeneration.

Yifan Zhou, Zhenyu Wang, Chen Huang, Xiaotong Yu, Xueyao Cai, Di Zhao, Yuchen Cai

Abstract read
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In one paragraph

Article in Biogerontology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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

2 citing papers in PubMed.

  1. Article
  2. Article
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.

Yifan Zhou *Department of Ophthalmology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
Zhenyu Wang *Beijing Tongren Eye Center, Beijing Tongren Hospital, Beijing Ophthalmology and Visual Science Key Lab, Capital Medical University, Beijing, China.
Chen Huang *Center of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China.
Xiaotong YuCenter of Basic Medical Research, Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing, China.
Xueyao CaiDepartment of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. kevin89459@alumni.sjtu.edu.cn.
Di ZhaoDepartment of Functional Intestinal Diseases, General Surgery of Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China. dizhaomd@vip.163.com.
Yuchen CaiDepartment of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. 1917@sjtu.edu.cn.

Funding

China Postdoctoral Science Foundation 2025M771943Postdoctoral Initiative Fund of Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine 202401056Shanghai Postdoctoral Excellence Program 2024409
6 · The paper itself

Abstract

Current knowledge regarding the role of gut microbiota (GM) dysbiosis and biological aging in the pathogenesis of age-related macular degeneration (AMD) remains limited. This study aims to explore the causal relationships among these factors in AMD development. Utilizing two-sample bidirectional mendelian randomization (MR), we analyzed genome-wide association study (GWAS) data from 105,248 individuals, including 14,034 early AMD cases, to assess causality between AMD, GM taxa, and biological aging phenotypes such as epigenetic clocks, telomere length, mitochondrial DNA copy number, immune cell traits, and inflammatory proteins. Multivariable MR (MVMR) was employed to evaluate mediation pathways, complemented by sensitivity analyses to ensure robustness. We identified 8 causal GM taxa (including one phylum, one class, one order, one family, and four species) along with 8 GM functional pathways. Additionally, 78 immune cell traits, 3 circulating inflammatory proteins, and DNA methylation PhenoAge acceleration were identified as causal biological aging phenotypes linked to AMD. Mediation analysis revealed three pathways connecting GM functional pathways, immune cell traits, and AMD. Reverse MR analysis highlighted the modifying effects of AMD on GM and other aging phenotypes. This study represents a pioneering effort to identify causal GM taxa associated with the onset of AMD and to unravel potential mechanisms from the perspective of biological aging, providing genetic insights into the connections among gut microbiota, immune cell traits, and AMD.

Indexed as

AgingGastrointestinal MicrobiomeMacular DegenerationAgedGenome-Wide Association StudyHumansMaleMendelian Randomization AnalysisPhenotypeAge-related macular degenerationBiological agingGut microbiotaImmune cellsMendelian randomization

Identifiers

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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.