Evidence mapPaperPMID 39833573Full record

ArticleEye (London, England)2025

Multi-cohort analysis identifying core ocular surface microbiome and bacterial alterations in eye diseases.

Xiangtian Ling, Xiu Juan Zhang, Christine H T Bui, Hei Nga Chan, Jennifer Wing Ki Yau, Fang Yao Tang, Ka Wai Kam, Patrick Ip, Alvin L Young, Kam Lun Hon and 4 more

Abstract read
In one paragraph

Article in Eye (London, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

14 authors.

Xiangtian Ling *Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
Xiu Juan Zhang *Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.ORCID http://orcid.org/0000-0002-4197-1423
Christine H T BuiDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
Hei Nga ChanDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
Jennifer Wing Ki YauDepartment of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
Fang Yao TangDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
Ka Wai KamDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.ORCID http://orcid.org/0000-0002-7760-6882
Patrick IpDepartment of Paediatrics and Adolescent Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
Alvin L YoungDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.ORCID http://orcid.org/0000-0002-4365-3218
Kam Lun HonDepartment of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
Clement C ThamDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.ORCID http://orcid.org/0000-0003-4407-6907
Chi Pui PangDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
Li Jia ChenDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China. lijia_chen@cuhk.edu.hk.ORCID http://orcid.org/0000-0003-3500-5840
Jason C YamDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China. yamcheuksing@cuhk.edu.hk.ORCID http://orcid.org/0000-0002-2156-1486

Funding

Chinese University of Hong Kong (CUHK) 178662514Chinese University of Hong Kong (CUHK) 2015.1.056Chinese University of Hong Kong (CUHK) 4054121Chinese University of Hong Kong (CUHK) 4054193Food and Health Bureau of the Government of the Hong Kong Special Administrative Region | Health and Medical Research Fund (HMRF) 07180826Food and Health Bureau of the Government of the Hong Kong Special Administrative Region | Health and Medical Research Fund (HMRF) 21220251Food and Health Bureau of the Government of the Hong Kong Special Administrative Region | Health and Medical Research Fund (HMRF) 5160836
6 · The paper itself

Abstract

purposeInconsistency exists among reported studies on the composition of human ocular surface microbiome (OSM). The roles of OSM in ocular diseases remain uncertain. In this study, we aimed to determine the composition of OSM and to evaluate its potential roles and functions from multiple cohorts.

methodsRaw 16 s sequencing data were obtainable from publicly available repositories, sourced from 17 published studies. Employing a standardized method, we processed the data and conducted a cross-cohort analysis. Through bioinformatics pipelines QIIME2 and PICRUSt2, we processed a total of 1875 ocular surface samples. Core microbiome analyses, genera comparisons, and MetaCyc pathway analyses were performed within each cohort independently. The results were then combined to identify shared patterns across different datasets.

resultsThe core OSM comprised seven genera: Corynebacterium, Staphylococcus, Acinetobacter, Streptococcus, Pseudomonas, Cutibacterium and Bacillus. Corynebacterium and Staphylococcus are the most abundant genera on ocular surface. Most ocular diseases showed OSM alterations and eight genera demonstrated a non-specific, shared response among two or more ocular diseases. Moreover, changes in various metabolic pathways were predicted following OSM alteration, indicating potential roles of OSM in biological processes.

conclusionWe refined the core OSM candidates combining multiple cohorts. The common pattern shared by different cohorts is worth further investigation. Changes in metabolic pathways based on bioinformatic analysis indicated a role of OSM on ocular diseases. Our results help extend the knowledge and encourage further investigations on the associations between OSM and ocular diseases.

Indexed as

BacteriaConjunctivaEye DiseasesEye Infections, BacterialMicrobiotaCohort StudiesComputational BiologyDNA, BacterialFemaleHumansMaleRNA, Ribosomal, 16SDNA, BacterialRNA, Ribosomal, 16S

Identifiers

PMID39833573
PMCPMC12044048

What Socratic holds

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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 Socratic graph.