← Issue №15/ week of Oct 11, 2026/Colorectal

Gut microbiome signatures in colorectal neoplasia: a cross-sectional study across neoplasia stages and subtypes.

From GI Signals issue №15: what this paper found, what it changes, and where it sits against the current standard of care, reviewed by Simon Mathews, MD.

Colorectal prospective cohort · n=1,762 · Oct 7, 2026 · Gut · IF 24.6

Gut microbiome signatures in colorectal neoplasia: a cross-sectional study across neoplasia stages and subtypes.

New evidencemicrobiomebiomarkerepidemiology
Clinical takeawayNo clinical action yet: weak associations in a cross-sectional study do not support microbiome-based screening or interventions for colorectal neoplasia.
What it foundGut microbiome differences between individuals with and without neoplasia were minimal (R2=0.0008, p=0.03), with weak associations for specific species and pathways (q value <0.05).
ContextChallenges prior hypotheses of strong microbial signatures in early colorectal neoplasia, suggesting microbial shifts may emerge later in disease progression.
No standard claimed for this paper

Every paper is compared to the standard governing its question. This one is not: either no standard in the corpus matches it, or the comparison did not hold up on review and was withdrawn rather than published unverified. Both are logged.

Louca P … Rees CJ · Gut · IF 24.6 · PubMed ↗Permalink
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