Evidence map›Paper›PMID 35689551›Full record

ArticleJournal of clinical laboratory analysis2022

Association of perturbation of oral bacterial with incident of Alzheimer's disease: A pilot study.

Majid Taati Moghadam, Nour Amirmozafari, Ali Mojtahedi, Babak Bakhshayesh, Aref Shariati, Faramarz Masjedian Jazi

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical laboratory analysis, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
5.6field-weighted citation impact, top 3% 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

26 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Journal of oral microbiology · 2026
    Article
  6. Review
  7. Review
  8. MedComm · 2025
    Review
  9. Article
  10. Review
  11. Review
  12. Observational
  13. Article
  14. Oral microbiota and central nervous system diseases: A review.Neuroprotection (Chichester, England) · 2025
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. 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

6 authors at 3 institutions in 1 country.

Majid Taati MoghadamStudent Research Committee, Iran University of Medical Sciences, Tehran, Iran.ORCID https://orcid.org/0000-0003-1557-3648
Nour AmirmozafariDepartment of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.ORCID https://orcid.org/0000-0001-5186-8406
Ali MojtahediDepartment of Microbiology, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran.ORCID https://orcid.org/0000-0002-5385-9367
Babak BakhshayeshDepartment of Neurology, Poursina Hospital, Guilan University of Medical Sciences, Rasht, Iran.ORCID https://orcid.org/0000-0002-6134-3440
Aref ShariatiMolecular and medicine research center, Khomein University of Medical Sciences, Khomein, Iran.ORCID https://orcid.org/0000-0003-1680-0427
Faramarz Masjedian JaziDepartment of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.ORCID https://orcid.org/0000-0002-0242-6000
Iran University of Medical Sciences · IRGuilan University of Medical Sciences · IRImam Khomeini Hospital · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis case-control study was designed to compare the composition of the predominant oral bacterial microbiome in Alzheimer's disease (AD) and control group. SUBJECT: A total of 30 adult participants (15 AD and 15 healthy individuals) were entered in this study. The composition of oral bacterial microbiome was examined by quantitative real-time polymerase chain reaction (qPCR) using bacterial 16S rDNA gene. The levels of systemic inflammatory cytokines in both groups were assessed using enzyme-linked immunosorbent assays (ELISA).

resultsThe loads of Porphyromonas gingivalis, Fusobacterium nucleatum, and Prevotella intermedia were significantly more abundant in the AD compared to the control group (p < 0.05). Although Aggregatibacter actinomycetemcomitans and Streptococcus mutans were relatively frequent in the AD group, no significance difference was observed in their copy number between two groups. Although the concentrations of IL-1, IL-6, and TNF-α were higher in the AD group, there was a significant difference in their levels between the two groups (p < 0.05). Finally, there was a significant relationship between increased number of pathogenic bacteria in oral microbiome and higher concentration of cytokines in patient's blood.

conclusionOur knowledge of oral microbiome and its exact association with AD is rather limited; our study showed a significant association between changes in oral microbiome bacteria, increased inflammatory cytokines, and AD.

Indexed as

Alzheimer DiseaseMicrobiotaMouthAdultAggregatibacter actinomycetemcomitansCase-Control StudiesCytokinesHumansPilot ProjectsCytokinesAlzheimer's diseaseinflammatory cytokinesneurological diseaseoral microbiomeperiodontitisqPCR

Identifiers

PMID35689551
PMCPMC9279996
OpenAlexW4282919357

What OpenQuestion holds

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LicenceCC BY
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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 OpenQuestion graph.