Alterations of ocular surface microbiome in glaucoma and its association with dry eye/Experiment 1
From BugSigDB
Reviewed Marked as Reviewed by KateRasheed on 2025-8-28
Subjects
- Location of subjects
- Tunisia
- Host species Species from which microbiome was sampled. Contact us to have more species added.
- Homo sapiens
- Body site Anatomical site where microbial samples were extracted from according to the Uber Anatomy Ontology
- Conjunctiva Conjunctiva,conjunctiva,Conjunctivae,Conjunctivas,Tunica conjunctiva,Wall of conjunctival sac
- Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
- Glaucoma glaucoma,glaucoma (disease),Glaucoma (disorder),Glaucoma associated with other ocular disorders,Glaucoma associated with other ocular disorders (disorder),Glaucoma associated with other ocular disorders NOS,Glaucoma associated with other ocular disorders NOS (disorder),GLAUCOMA NEC,Glaucoma NOS,Glaucoma NOS (disorder),Glaucoma, NOS,Glaucomas,Other specified forms of glaucoma,Other specified forms of glaucoma (disorder),Other specified glaucoma,Other specified glaucoma NOS,Other specified glaucoma NOS (disorder),Unspecified glaucoma,Glaucoma
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- HC (Healthy Controls)
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- G-only (Glaucomatous patients without dry eye syndrome)
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- Glaucomatous patients without dry eye syndrome
- Group 0 sample size Number of subjects in the control (unexposed) group
- 60
- Group 1 sample size Number of subjects in the case (exposed) group
- 24
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 1 month
Lab analysis
- Sequencing type
- 16S
- 16S variable region One or more hypervariable region(s) of the bacterial 16S gene
- V1-V3
- Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
- Illumina
Statistical Analysis
- Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
- raw counts
- Statistical test
- DESeq2
- Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
- 0.05
- MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?
- Yes
- Matched on Factors on which subjects have been matched on in a case-control study
- age
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
- Chao1 Abundance-based estimator of species richness
- unchanged
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- unchanged
Signature 1
Reviewed Marked as Reviewed by KateRasheed on 2025-8-28
Source: Figure 2A, Supplementary table 2
Description: Most differentially abundant genera and phyla between groups, identified by DESeq2.
Abundance in Group 1: increased abundance in G-only (Glaucomatous patients without dry eye syndrome)
Revision editor(s): Anne-mariesharp
