Identification of robust associations between admission microbiome profiles and complications of acute pancreatitisOriginal paper
Karen Pendergrass is a microbiome researcher specializing in microbiome-targeted interventions (MBTIs). She systematically analyzes scientific literature to identify microbial patterns, develop hypotheses, and validate interventions. As the founder of the Microbiome Signatures Database, she bridges microbiome research with clinical practice. In 2012, based on her own investigative research, she became the first documented case of FMT for Celiac Disease, four years before the first published case study.
Read MoreWhat was studied?
Researchers asked whether gut and oral microbiome profiles taken at hospital admission reliably predict severity and complications of acute pancreatitis. They tested this across 276 prospectively enrolled patients from 20 Dutch hospitals.
How was it studied?
Admission saliva and rectal samples underwent 16S rDNA sequencing. Genus abundance and diversity were compared across severity subgroups, and each association was scored as moderately robust (significant in 2 models) or highly robust (significant in 3 or more models).
What did they find?
Rectal alpha diversity was lower in necrotising (Shannon Index 3.55, n=49) than oedematous pancreatitis (3.63, n=218, p=0.026). Of 270 rectal and 138 saliva genera linked to severity or complications, only 3 (Anaeroglobus and Finegoldia in saliva, Lachnospiraceae_FE2018_group in rectal samples) reached high robustness, and 10 of 14 previously reported associations pointed the opposite direction here.
Why it matters
The scarcity of replicable admission microbiome signals, despite hundreds of tested genera, suggests single-timepoint profiling is an unreliable severity marker. The authors call for longitudinal studies to clarify whether microbiome shifts drive or merely follow disease progression.