Evidence map›Paper›PMID 32539695›Full record

ArticleBMC genomics2020

Analysis of oral microbiome from fossil human remains revealed the significant differences in virulence factors of modern and ancient Tannerella forsythia.

Anna Philips, Ireneusz Stolarek, Luiza Handschuh, Katarzyna Nowis, Anna Juras, Dawid Trzciński, Wioletta Nowaczewska, Anna Wrzesińska, Jan Potempa, Marek Figlerowicz

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 19 citations in OpenAlex.

  1. The Oral Microbiome of King Richard III of England.American journal of biological anthropology · 2026
    Article
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  5. First reportedFrontiers in medicine · 2025
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  13. Oral Osteomicrobiology: The Role of Oral Microbiota in Alveolar Bone Homeostasis.Frontiers in cellular and infection microbiology · 2021
    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

10 authors at 6 institutions in 2 countries.

Anna PhilipsInstitute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704, Poznan, Poland.
Ireneusz StolarekInstitute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704, Poznan, Poland.
Luiza HandschuhInstitute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704, Poznan, Poland.
Katarzyna NowisInstitute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704, Poznan, Poland.
Anna JurasDepartment of Human Evolutionary Biology, Institute of Anthropology, Faculty of Biology, Adam Mickiewicz University in Poznan, 61-614, Poznan, Poland.
Dawid TrzcińskiDepartment of Human Evolutionary Biology, Institute of Anthropology, Faculty of Biology, Adam Mickiewicz University in Poznan, 61-614, Poznan, Poland.
Wioletta NowaczewskaDepartment of Human Biology, Faculty of Biological Sciences, Wroclaw University, 50-138, Wroclaw, Poland.
Anna WrzesińskaAnthropological Laboratory, Museum of the First Piasts at Lednica, 62-261, Lednogora, Poland.
Jan PotempaFaculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland.
Marek FiglerowiczInstitute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704, Poznan, Poland. marekf@ibch.poznan.pl.
Institute of Bioorganic Chemistry, Polish Academy of Sciences · PLAdam Mickiewicz University in Poznań · PLPoznań University of Technology · PLState Archaeological Museum · PLUniversity of Louisville · USUniversity of Wrocław · PL

Funding

Protease - protease inhibitor system of Tannerella forsythiaR21DE026280 · NIDCR · UNIVERSITY OF LOUISVILLE · PI POTEMPA, JAN S · 2016 to 2017
$424k
NIDCR NIH HHS R21 DE026280NIDCR NIH HHS R21DE026280
6 · The paper itself

Abstract

backgroundRecent advances in the next-generation sequencing (NGS) allowed the metagenomic analyses of DNA from many different environments and sources, including thousands of years old skeletal remains. It has been shown that most of the DNA extracted from ancient samples is microbial. There are several reports demonstrating that the considerable fraction of extracted DNA belonged to the bacteria accompanying the studied individuals before their death.

resultsIn this study we scanned 344 microbiomes from 1000- and 2000- year-old human teeth. The datasets originated from our previous studies on human ancient DNA (aDNA) and on microbial DNA accompanying human remains. We previously noticed that in many samples infection-related species have been identified, among them Tannerella forsythia, one of the most prevalent oral human pathogens. Samples containing sufficient amount of T. forsythia aDNA for a complete genome assembly were selected for thorough analyses. We confirmed that the T. forsythia-containing samples have higher amounts of the periodontitis-associated species than the control samples. Despites, other pathogens-derived aDNA was found in the tested samples it was too fragmented and damaged to allow any reasonable reconstruction of these bacteria genomes. The anthropological examination of ancient skulls from which the T. forsythia-containing samples were obtained revealed the pathogenic alveolar bone loss in tooth areas characteristic for advanced periodontitis. Finally, we analyzed the genetic material of ancient T. forsythia strains. As a result, we assembled four ancient T. forsythia genomes - one 2000- and three 1000- year-old. Their comparison with contemporary T. forsythia genomes revealed a lower genetic diversity within the four ancient strains than within contemporary strains. We also investigated the genes of T. forsythia virulence factors and found that several of them (KLIKK protease and bspA genes) differ significantly between ancient and modern bacteria.

conclusionsIn summary, we showed that NGS screening of the ancient human microbiome is a valid approach for the identification of disease-associated microbes. Following this protocol, we provided a new set of information on the emergence, evolution and virulence factors of T. forsythia, the member of the oral dysbiotic microbiome.

Indexed as

Gastrointestinal MicrobiomeBody RemainsFossilsGenome, BacterialGenomicsHumansMetagenomeMouthPeriodontitisPeriodontiumTannerella forsythiaToothVirulence FactorsVirulence FactorsaDNAAncient genomicsComparative genomicsOral microbiomeT. forsythia

Identifiers

PMID32539695
PMCPMC7296668
OpenAlexW3034623166

What OpenQuestion holds

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LicenceCC BY
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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.