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← Conditions Heart, blood and vessels Genus-level

Atrial fibrillation

Compared within 2 studies that had both: 68 people with atrial fibrillation and 22 healthy people. No genera less common in people with atrial fibrillation, and none more common.

A difference is an association: it doesn’t mean these genera cause, prevent or treat atrial fibrillation. GMrepo reports this group at the genus level only, so these are genera, not species.

Searching opens both lists and shows only matching rows.

Less common in atrial fibrillation · 0

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people

None compared.

More common in atrial fibrillation · 0

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people

None compared.

Where these numbers come from

Studies
Only GMrepo projects that had people with the condition and healthy people, 10 or more of each. Numbers come from those studies, never from pooling.Sampled in China.
How common
The share of people whose sample has any of it, in the people with the condition and in the healthy people of those same studies. Tested within studies (Cochran–Mantel–Haenszel, corrected for testing many microbes); a difference counts when it is clear and meaningful (Cohen’s h of 0.2 or more).
Strength word
Counted by code from how many studies point the same way: Seen again and again (3 or more, none clearly the other way), Seen more than once (2, the majority), Seen once (1, listed last). Where studies disagree, a row isn’t listed.
Each study
Tap a row for every study’s own numbers, and for how much carriers have.
Analysis
Our analysis of GMrepo data. GMrepo on Data sources · Read the rules

Also compared · 43 genera

Compared within studies that had both, but not listed above.

No meaningful difference · 43
PubMed · human studies and reviews first

Recent research

All research on it
  1. Medicine · 2026
    Bidirectional Mendelian randomization study on the association between gut microbiota and atrial fibrillation.
    PubMed ↗
  2. Cell metabolism · 2026
    Gut microbiota-derived isovaleric acid alleviates atrial fibrillation by suppressing GSDME-dependent pyroptosis.
    PubMed ↗
  3. Observational Cardiovascular diabetology · 2023
    Roles of gut microbiota in atrial fibrillation: insights from Mendelian randomization analysis and genetic data from over 430,000 cohort study participants.
    PubMed ↗
  4. Observational EBioMedicine · 2022
    Akkermansia muciniphila prevents cold-related atrial fibrillation in rats by modulation of TMAO induced cardiac pyroptosis.
    PubMed ↗
  5. Observational Zhonghua xin xue guan bing za zhi · 2022
    [Metagenomic data-analysis reveals enrichment of lipopolysaccharide synthesis in the gut microbiota of atrial fibrillation patients].
    PubMed ↗

Source: PubMed, U.S. National Library of Medicine · 11 linked papers, last 10 years