Evidence map›Paper›PMID 40955169›Full record

ReviewAnnals of medicine2025

The origin of circulating microbial DNA in the blood: where does it come from?

Zichen Zhang, Wenbo Ren, Yifei Wang, Taiyu Zhai, Jing Huang

Abstract readReview
In one paragraph

Review in Annals of medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Zichen ZhangDepartment of Clinical Laboratory, The First Hospital of Jilin University, Changchun, China.ORCID 0009-0001-0122-7405
Wenbo RenDepartment of Clinical Laboratory, The First Hospital of Jilin University, Changchun, China.
Yifei WangCollege of Medical Technology, Beihua University, Jilin, China.
Taiyu ZhaiDepartment of Clinical Laboratory, The First Hospital of Jilin University, Changchun, China.
Jing HuangDepartment of Clinical Laboratory, The First Hospital of Jilin University, Changchun, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCirculating microbial DNA (cmDNA) is a significant biomarker involved in normal physiology, immunity, disease diagnosis, and pathogenesis. Its origin in peripheral blood has sparked extensive discussions and generated numerous hypotheses.

aimThis review explores four potential sources of cmDNA in the blood and analyzes research limitations and future prospects.

resultsFour potential sources are collated and analyzed: exogenous microbes or DNA entering the peripheral blood after barrier damage; residual pathogen DNA remaining after infectious diseases; microbial translocation from sites such as the oral and intestinal mucosa into the bloodstream; and the extracellular vesicle delivery system, where microorganisms release vesicles to transfer DNA.

conclusionsThe potential sources of cmDNA in the blood are not mutually exclusive and may be multifaceted, depending on an individual's health condition, sampling time, and contamination control. In-depth study of these sources will open new avenues for early disease detection, precise diagnosis, and prognosis assessment, and encourage further exploration in this promising field.

Indexed as

Cell-Free Nucleic AcidsDNA, BacterialBacterial TranslocationBiomarkersExtracellular VesiclesHumansIntestinal MucosaMouth MucosaBiomarkersCell-Free Nucleic AcidsDNA, BacterialbloodCirculating microbial DNAmembrane vesiclesmicroorganismsorigin

Identifiers

PMID40955169
PMCPMC12444952

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.