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← Conditions CancersHeart, blood and vessels Genus-level

Blood cancers

Compared within 1 study that had both: 29 people with blood cancers and 30 healthy people. 30 genera are less common in people with blood cancers, and 2 more common.

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

Phylum

Searching opens both lists and shows only matching rows.

Less common in blood cancers · 30

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people
  1. Dorea genus in 1 study Healthy 97% blood cancers 28%
  2. Coprococcus genus in 1 study Healthy 83% blood cancers 10%
  3. Roseburia genus in 1 study Healthy 100% blood cancers 52%
  4. Odoribacter genus in 1 study Healthy 70% blood cancers 6.9%
  5. Fusicatenibacter genus in 1 study Healthy 93% blood cancers 31%

More common in blood cancers · 2

Strongest first, then the biggest gap · Each figure is 10 people Strongest first · Each figure is 10 people
  1. Rothia genus in 1 study Healthy 40% blood cancers 83%
  2. Enterococcus genus in 1 study Healthy 57% blood cancers 93%

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 Belarus.
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 · 65 genera

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

No meaningful difference · 65
PubMed · human studies and reviews first

Recent research

All research on it
  1. European journal of medical research · 2025
    Mucosal barrier injury as an independent risk factor for laboratory-confirmed bloodstream infection in patients with hematological malignancies: a real-world study.
    PubMed ↗
  2. Review International journal of molecular sciences · 2024
    Gut Microbiota Disruption in Hematologic Cancer Therapy: Molecular Insights and Implications for Treatment Efficacy.
    PubMed ↗
  3. Frontiers in cellular and infection microbiology · 2024
    Refining the relationship between gut microbiota and common hematologic malignancies: insights from a bidirectional Mendelian randomization study.
    PubMed ↗
  4. Clinical laboratory · 2021
    Exploring the Characteristics of Intestinal Microbiota in Hematologic Malignancy Patients via 16s rDNA High-Throughput Sequencing.
    PubMed ↗
  5. Randomized trial British journal of haematology · 2019
    Pilot study investigating the effect of enteral and parenteral nutrition on the gastrointestinal microbiome post-allogeneic transplantation.
    PubMed ↗

Source: PubMed, U.S. National Library of Medicine · 5 linked papers, last 10 years