Home Research Feeds A comparison of the gut microbiota among adult patients with drug-responsive and drug-resistant epilepsy: An exploratory study

A comparison of the gut microbiota among adult patients with drug-responsive and drug-resistant epilepsy: An exploratory studyOriginal paper

Researched by:

  • Karen Pendergrass

Last Updated: 2026-07-04

Karen Pendergrass
Karen Pendergrass

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.

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Location
South Korea
Sample Site
Feces
Species
Homo sapiens

What was studied?

Researchers compared gut microbiota composition between adult epilepsy patients whose seizures responded to medication and those with drug-resistant epilepsy.

How was it studied?

Forty-four adult epilepsy patients were prospectively classified as drug-responsive or drug-resistant. Fecal samples underwent next-generation sequencing, with statistical comparison of bacterial taxa and alpha and beta diversity between groups.

What did they find?

Demographic factors did not differ between groups, but gut microbiota composition did. Bacteroides finegoldii and Ruminococcus_g2 were relatively more abundant in the drug-responsive group, while Negativicutes, a Firmicutes class, was more abundant in the drug-resistant group. Bifidobacterium was relatively abundant in patients with a normal electroencephalogram. Alpha and beta diversity did not differ significantly between groups.

Why it matters

The authors propose gut microbiota differences could serve as a biomarker for predicting epilepsy prognosis and treatment response, and that modifying the gut microbiome may help treat drug-resistant epilepsy.

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