Evidence map›Paper›PMID 40433667›Full record

SynthesisFrontiers in cellular and infection microbiology2025

Association between oral dysbiosis and Parkinson's disease: a systematic review.

Laura Murcia-Flores, Ana Sánchez-García, María Pilar Pecci-Lloret, Francisco Javier Rodríguez-Lozano

Abstract readSystematic Review
In one paragraph

Synthesis in Frontiers in cellular and infection microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
–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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Observational
  3. Review
  4. Article
  5. Article
  6. Gut Microbiome as a Source of Probiotic Drugs for Parkinson's Disease.International journal of molecular sciences · 2025
    Review
  7. Article
  8. 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

4 authors.

Laura Murcia-FloresDepartment of Health Sciences, Catholic University San Antonio of Murcia, Murcia, Spain.
Ana Sánchez-GarcíaDermatology, Stomatology, Radiology and Physical Medicine, Hospital Morales Meseguer, Medicine School, University of Murcia, Murcia - Biomedical Research Institute (IMIB), Murcia, Spain.
María Pilar Pecci-LloretDermatology, Stomatology, Radiology and Physical Medicine, Hospital Morales Meseguer, Medicine School, University of Murcia, Murcia - Biomedical Research Institute (IMIB), Murcia, Spain.
Francisco Javier Rodríguez-LozanoDermatology, Stomatology, Radiology and Physical Medicine, Hospital Morales Meseguer, Medicine School, University of Murcia, Murcia - Biomedical Research Institute (IMIB), Murcia, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The oral cavity serves as the gateway to the human organism, hosting a diverse community of microorganisms that coexist in a state of symbiosis. Disruption of this balance leads to oral dysbiosis, a condition associated with infections and oral pathologies, which may contribute to the etiopathogenesis of systemic disorders such as Parkinson's disease, a neurodegenerative movement disorder characterized by resting tremor, rigidity, and bradykinesia. While oral dysbiosis is recognized as a risk factor and an aggravating element for Parkinson's disease, it is not regarded as a direct cause. This systematic review aims to synthesize existing research exploring the potential relationship between oral dysbiosis and the development of Parkinson's disease. Following a comprehensive analysis, 12 studies were selected, comprising 11 case-control studies and one observational analytical study. These studies investigated the composition of oral microbiota in different sample groups, revealing a higher abundance of pathogenic oral bacteria in individuals diagnosed with Parkinson's disease. The findings suggest that oral dysbiosis may influence both the onset of Parkinson's disease and the progression of symptoms such as cognitive decline. These results pave the way for future research, particularly regarding alterations in oral microbiota as potential biomarkers for early diagnosis and disease monitoring. Systematic review registration: https://www.crd.york.ac.uk/prospero/, identifier CRD42024540056.

Indexed as

DysbiosisMouthParkinson DiseaseBacteriaCase-Control StudiesHumansMicrobiotaRisk Factorsdiseaseneurodegenerativeoral dysbiosisParkinsonsystematic review

Identifiers

PMID40433667
PMCPMC12106549

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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 Socratic graph.