Evidence map›Paper›PMID 36570533›Full record

ArticleFrontiers in aging neuroscience2022

High resolution 16S rRNA gene Next Generation Sequencing study of brain areas associated with Alzheimer's and Parkinson's disease.

David C Emery, Maria Davies, Tanya L Cerajewska, Jelena Taylor, Mae Hazell, Alex Paterson, Shelley J Allen-Birt, Nicola X West

Open access · goldAbstract read
In one paragraph

Article in Frontiers in aging neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.8field-weighted citation impact, top 9% of its field
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

16 citing papers in PubMed, 19 citations in OpenAlex.

  1. Review
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  7. Article
  8. Alzheimer's Disease andLife (Basel, Switzerland) · 2025
    Review
  9. Article
  10. The brain pathobiome in Alzheimer's disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
    Review
  11. Article
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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

8 authors at 3 institutions in 1 country.

David C EmeryBristol Dental School, Bristol, United Kingdom.
Maria DaviesBristol Dental School, Bristol, United Kingdom.
Tanya L CerajewskaBristol Dental School, Bristol, United Kingdom.
Jelena TaylorBristol Dental School, Bristol, United Kingdom.
Mae HazellTranslational Health Sciences, Learning and Research, Bristol Medical School, Southmead Hospital, Bristol, United Kingdom.
Alex PatersonSchool of Biological Sciences, University of Bristol Genomics Facility, Bristol, United Kingdom.
Shelley J Allen-BirtTranslational Health Sciences, Learning and Research, Bristol Medical School, Southmead Hospital, Bristol, United Kingdom.
Nicola X WestBristol Dental School, Bristol, United Kingdom.
University Of Bristol Dental Hospital · GBSouthmead Hospital · GBGenomics (United Kingdom) · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Alzheimer's (AD) and Parkinson's disease (PD) are neurodegenerative conditions characterized by incremental deposition of β-amyloid (Aβ) and α-synuclein in AD and PD brain, respectively, in relatively conserved patterns. Both are associated with neuroinflammation, with a proposed microbial component for disease initiation and/or progression. Notably, Aβ and α-synuclein have been shown to possess antimicrobial properties. There is evidence for bacterial presence within the brain, including the oral pathobiont Methods: Here, we use high resolution 16S rRNA PCR-based Next Generation Sequencing (16SNGS) to characterize bacterial composition in brain areas associated with the early, intermediate and late-stage of the diseases. Results and discussion: This study reveals the widespread presence of bacteria in areas of the brain associated with AD and PD pathology, with distinctly different bacterial profiles in blood and brain. Brain area profiles were overall somewhat similar, predominantly oral, with some bacteria subgingival and oronasal in origin, and relatively comparable profiles in AD and PD brain. However, brain areas associated with early disease development, such as the locus coeruleus, were substantially different in bacterial DNA content compared to areas affected later in disease etiology.

Indexed as

16S rRNA NGSAlzheimer’sbrainoral bacteriaParkinson’s

Identifiers

PMID36570533
PMCPMC9780557
OpenAlexW4311956787

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.