GSE69762

Gene expression of human small intestine generated by biopsy specimens

Whole-study status Not suitable

Dataset does not meet the current suitability threshold.

Whole-study downloads — these do not apply your sample requirements.

Selected cohort requirements

Samples meeting selected requirements: 0 cases / 0 controls

View matching samples

16 case / 0 control samples elsewhere in the study have incomplete or conflicting evidence; they are not included above

Patient pairs verified in indexed sample metadata: 0

A case/control comparison meeting these requirements is not confirmed.

Counts describe samples, not independent patients. Pair verification uses explicit subject identifiers in indexed sample metadata. Zero verified pairs does not establish that the study is unpaired; reported matched-normal design alone is insufficient.

Summary

The entire small intestine was obseved by balloon endoscopy. Biopsy specimens were taken from jejunum, ileum and colon, respectively.

Overall design

Four crohn disease patients and four nonIBD controls were compared.

Source Evidence

4 sources
Source Contribution Status
GEO

Original dataset metadata, sample metadata, source links, and GEO data availability flags.

Sample records
30 GSM samples
Primary source
recount3

Planned trusted source for processed count availability.

No match found
Expression Atlas

Curated expression experiment linkage and source URL.

Expression Atlas accession
E-GEOD-69762
Available
PubMed

Primary GEO citations and related PubMed articles that mention this dataset.

2 linked publications 2 DOIs

Primary publication

  1. Reduced Human α-defensin 6 in Noninflamed Jejunal Tissue of Patients with Crohn's Disease. Inflammatory bowel diseases, 2016

Related publications

  1. Identifying the importance of PCK1 in maintaining ileal epithelial barrier integrity in Crohn's disease. Gene, 2024
Available

Metadata Quality Components

Analysis Readiness

Not ready
43% DE readiness

Contrast completeness

10/25 pts

Only one side of the contrast is present; downstream DE needs both groups.

Minimum group size

0/20 pts

Minimum group size cannot be evaluated until a complete contrast exists.

Processed data availability

20/20 pts

Processed data is marked available in the GEO index.

Sample decision clarity

3/15 pts

Unassigned or review-needed samples remain before analysis.

Blocking warnings

0/10 pts

Critical warnings must be resolved before downstream analysis.

Metadata normalization

10/10 pts

Metadata quality is high enough to support downstream handoff.

Blockers

  • No complete case/control contrast is available.
  • 14 samples are still unassigned.
  • Critical dataset warnings must be resolved.

Next Steps

  • Resolve unassigned or review-needed samples in the grouping table.
  • Resolve critical warnings before downstream analysis.

Analysis Preparation Checklist

3/6 ready

Group labels reviewed

Blocked

No complete case/control grouping exists yet.

Review the sample grouping table and assign both case and control groups.

Minimum sample count met

Blocked

At least one group has fewer than 2 samples.

Choose a larger dataset or merge only scientifically valid groups.

Processed counts available

Ready

Processed data availability is marked true in the GEO index.

Verify that downloaded processed files contain usable count or expression identifiers.

Ambiguous samples handled

Needs review

0 review-needed samples and 14 unassigned samples remain.

Resolve ambiguous and unassigned samples before finalizing the contrast.

Exclusion decisions recorded

Ready

No hard-excluded samples were detected by the current rules.

Record any manual exclusions in the downstream analysis notes.

Source traceability preserved

Ready

The dataset and sample accessions can be traced back to GEO.

Keep GEO accessions with exported metadata.

Bioinformatician Review

Bioinformatician review required

Ask a bioinformatician to review grouping, count availability, exclusions, and design before DE.

Analysis readiness has blockers that must be resolved before DE.

Analysis preparation checklist contains blocked items.

No complete case/control or treatment/control contrast is available.

At least one comparison group has fewer than two samples.

One or more samples are unassigned and need manual grouping decisions.

Critical dataset warnings are present.

Assay context may require expert handling before DESeq2-style analysis.

Study design is model-system or unclear and should be reviewed before analysis.

Why This Is Ranked Here

Tumor vs normal
Not suitable Dataset does not meet the current suitability threshold.

Applied Review Decisions

No active review decisions affect this ranking.

Derived Classifications

  • Assay differs from search intent Microarray Search intent expects bulk RNA-seq. Assay came from Normalization rules.
  • Disease context Crohn's disease, inflammatory bowel disease Disease context came from Normalization rules.
  • Likely case group Crohn's disease 16 samples
  • Likely control group No control group detected 0 samples

Intent Interpretation

  • Downgrade or exclusion reason Comparison: Unclear study design. Specimen: Biopsy. Comparison suitability: 0%. Derived from current-intent ranking reasons.

Ranking Facts

Supporting evidence

  • Interpreted disease metadata: Crohn's disease, Inflammatory bowel disease.
  • Processed data is available for downstream review.
  • External evidence: Expression Atlas curated experiment link is available.
  • External evidence: PubMed links 2 publications; 2 DOIs available: PMID 26891258, PMID 39159791.
  • Publication context: Reduced Human α-defensin 6 in Noninflamed Jejunal Tissue of Patients with Crohn's Disease.. Inflammatory bowel diseases, 2016. PMID 26891258. DOI 10.1097/MIB.0000000000000707.
  • Publication context: Identifying the importance of PCK1 in maintaining ileal epithelial barrier integrity in Crohn's disease.. Gene, 2024. PMID 39159791. DOI 10.1016/j.gene.2024.148872.

Cautions

  • Comparison: Unclear study design. Specimen: Biopsy. Comparison suitability: 0%.
  • Downgraded for tissue search because study design or specimen source is unclear.
  • Downgraded assay: microarray cohorts are separated from the RNA-seq intent.
  • Unclear study design downgraded for patient tissue tumor-vs-normal search intent.
  • Missing or unclear metadata. Unclear study design downgraded for patient tissue tumor-vs-normal search intent.
  • Overall score capped because comparison suitability is weak for the selected search intent.
  • Missing or unclear metadata. Comparison - Unclear study design. Specimen - Biopsy. Comparison suitability: 0%.
  • Missing or unclear metadata. Downgraded for tissue search because study design or specimen source is unclear.
  • Publication context: Reduced Human α-defensin 6 in Noninflamed Jejunal Tissue of Patients with Crohn's Disease.. Inflammatory bowel diseases, 2016. PMID 26891258. DOI 10.1097/MIB.0000000000000707.
  • Comparison suitability score is below the Phase 1 recommended threshold.

Dataset Warnings

Normalized Fields

108 fields

Sample Group Preview

30 rows shown
Show Hide
Study totals: Case 16 | Control 0 | Unassigned 14 | Excluded 0 | Ambiguous 0 30 rows shown
Group Role Accession Title Source / characteristics Reason
Crohn's disease Case GSM1708495 IBD_jejunum_upper Biopsy specimen Disease state: Crohn Disease; Tissue: IBD jejunum upper Case marker detected.
Crohn's disease Case GSM1708496 IBD_jejunum_lower Biopsy specimen Disease state: Crohn Disease; Tissue: IBD jejunum lower Case marker detected.
Crohn's disease Case GSM1708497 IBD_ileum_upper Biopsy specimen Disease state: Crohn Disease; Tissue: IBD ileum upper Case marker detected.
Crohn's disease Case GSM1708498 IBD_ileum_middle Biopsy specimen Disease state: Crohn Disease; Tissue: IBD ileum middle Case marker detected.
Crohn's disease Case GSM1708499 IBD_ascending colon Biopsy specimen Disease state: Crohn Disease; Tissue: IBD ascending colon Case marker detected.
Crohn's disease Case GSM1708504 No.9_CD_Jejunum_Upper Biopsy specimen Disease state: Crohn Disease; Tissue: CD Jejunum Upper Case marker detected.
Crohn's disease Case GSM1708505 No.9_CD_Jejunum_Lower Biopsy specimen Disease state: Crohn Disease; Tissue: CD Jejunum Lower Case marker detected.
Crohn's disease Case GSM1708506 No.11_CD_Jejunum_Upper Biopsy specimen Disease state: Crohn Disease; Tissue: CD Jejunum Upper Case marker detected.
Crohn's disease Case GSM1708507 No.11_CD_Jejunum_Lower Biopsy specimen Disease state: Crohn Disease; Tissue: CD Jejunum Lower Case marker detected.
Crohn's disease Case GSM1708514 No.12_CD_Jejunum_Upper_np Biopsy specimen Disease state: Crohn Disease; Tissue: CD Jejunum Upper np Case marker detected.
Crohn's disease Case GSM1708515 No.12_CD_Jejunum_Upper_ulcer Biopsy specimen Disease state: Crohn Disease; Tissue: CD Jejunum Upper ulcer Case marker detected.
Crohn's disease Case GSM1708516 No.12_CD_Jejunum_Middle Biopsy specimen Disease state: Crohn Disease; Tissue: CD Jejunum Middle Case marker detected.
Crohn's disease Case GSM1708517 No.12_CD_Jejunum_ Lower Biopsy specimen Disease state: Crohn Disease; Tissue: CD Jejunum Lower Case marker detected.
Crohn's disease Case GSM1708518 No.12_CD_Ileum_Upper Biopsy specimen Disease state: Crohn Disease; Tissue: CD Ileum Upper Case marker detected.
Crohn's disease Case GSM1708519 No.12_CD_Ileum_ Lower Biopsy specimen Disease state: Crohn Disease; Tissue: CD Ileum Lower Case marker detected.
Crohn's disease Case GSM1708520 No.12_CD_colon Biopsy specimen Disease state: Crohn Disease; Tissue: CD colon Case marker detected.
Unassigned Unassigned GSM1708491 NonIBD_jejunum_upper Biopsy specimen Disease state: NonIBD; Tissue: NonIBD jejunum upper No explicit case or control marker detected.
Unassigned Unassigned GSM1708492 NonIBD_jejunum_lower Biopsy specimen Disease state: NonIBD; Tissue: NonIBD jejunum lower No explicit case or control marker detected.
Unassigned Unassigned GSM1708493 NonIBD_ileum_lower Biopsy specimen Disease state: NonIBD; Tissue: NonIBD ileum lower No explicit case or control marker detected.
Unassigned Unassigned GSM1708494 NonIBD_ascending colon Biopsy specimen Disease state: NonIBD; Tissue: NonIBD ascending colon No explicit case or control marker detected.
Unassigned Unassigned GSM1708500 No.6_nonIBD_Jejunum_Upper Biopsy specimen Disease state: NonIBD; Tissue: NonIBD Jejunum Upper No explicit case or control marker detected.
Unassigned Unassigned GSM1708501 No.6_nonIBD_Jejunum_Lower Biopsy specimen Disease state: NonIBD; Tissue: NonIBD Jejunum Lower No explicit case or control marker detected.
Unassigned Unassigned GSM1708502 No7_nonIBD_Jejunum_Upper Biopsy specimen Disease state: NonIBD; Tissue: NonIBD Jejunum Upper No explicit case or control marker detected.
Unassigned Unassigned GSM1708503 No7_nonIBD_Jejunum_Lower Biopsy specimen Disease state: NonIBD; Tissue: NonIBD Jejunum Lower No explicit case or control marker detected.
Unassigned Unassigned GSM1708508 No.9_nonIBD_Jejunum_Upper Biopsy specimen Disease state: NonIBD; Tissue: NonIBD Jejunum Upper No explicit case or control marker detected.
Unassigned Unassigned GSM1708509 No.9_nonIBD_Jejunum_Middle Biopsy specimen Disease state: NonIBD; Tissue: NonIBD Jejunum Middle No explicit case or control marker detected.
Unassigned Unassigned GSM1708510 No.9_nonIBD_Jejunum_Lower Biopsy specimen Disease state: NonIBD; Tissue: NonIBD Jejunum Lower No explicit case or control marker detected.
Unassigned Unassigned GSM1708511 No.9_nonIBD_Ileum_Upper Biopsy specimen Disease state: NonIBD; Tissue: NonIBD Ileum Upper No explicit case or control marker detected.
Unassigned Unassigned GSM1708512 No.9_nonIBD_Ileum_Middle Biopsy specimen Disease state: NonIBD; Tissue: NonIBD Ileum Middle No explicit case or control marker detected.
Unassigned Unassigned GSM1708513 No.9_nonIBD_colon Biopsy specimen Disease state: NonIBD; Tissue: NonIBD colon No explicit case or control marker detected.

Use as Discovery Cohort

External Validation Finder

Carry Siftome's disease, organism, specimen, assay, data type, and accession into a validation project. Uncertain fields remain Unknown.