Evidence map›Paper›PMID 32851571›Full record

ArticleGeroScience2021

Contribution of Porphyromonas gingivalis lipopolysaccharide to experimental periodontitis in relation to aging.

Juliet Akkaoui, Chiaki Yamada, Carolina Duarte, Anny Ho, Saynur Vardar-Sengul, Toshihisa Kawai, Alexandru Movila

Open access · greenAbstract read
In one paragraph

Article in GeroScience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

29 citing papers in PubMed, 44 citations in OpenAlex.

  1. The Role ofAntibiotics (Basel, Switzerland) · 2026
    Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Cells · 2025
    Article
  7. Article
  8. Article
  9. [Research Advances in the Replication of Animal Models for Periodontal Diseases].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2025
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. [The Relationship Between Oral Microbiota and Chronic Obstructive Pulmonary Disease].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2023
    Review
  18. Article
  19. Nutrients · 2022
    Article
  20. Article
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

7 authors at 1 institution in 2 countries.

Juliet AkkaouiCollege of Dental Medicine, Nova Southeastern University, 3200 S University Dr.,, Ft. Lauderdale, FL, 33324, USA.
Chiaki YamadaCollege of Dental Medicine, Nova Southeastern University, 3200 S University Dr.,, Ft. Lauderdale, FL, 33324, USA.
Carolina DuarteCollege of Dental Medicine, Nova Southeastern University, 3200 S University Dr.,, Ft. Lauderdale, FL, 33324, USA.
Anny HoCollege of Dental Medicine, Nova Southeastern University, 3200 S University Dr.,, Ft. Lauderdale, FL, 33324, USA.
Saynur Vardar-SengulCollege of Dental Medicine, Nova Southeastern University, 3200 S University Dr.,, Ft. Lauderdale, FL, 33324, USA.
Toshihisa KawaiCollege of Dental Medicine, Nova Southeastern University, 3200 S University Dr.,, Ft. Lauderdale, FL, 33324, USA.
Alexandru MovilaCollege of Dental Medicine, Nova Southeastern University, 3200 S University Dr.,, Ft. Lauderdale, FL, 33324, USA. amovila@nova.edu.ORCID http://orcid.org/0000-0001-9827-7347
Nova Southeastern University · US

Funding

Impact of Acid Ceramidase Activity on MIF-mediated migration of circulating osteoclast precursors to periodontal bone lesions in relation to agingR01AG064003 · NIA · NOVA SOUTHEASTERN UNIVERSITY · PI MOVILA, ALEXANDRU · 2019 to 2022
$1.8M
Impact of aging on intracellular ceramide-mediated periodontal bone lesionsR15DE028699 · NIDCR · NOVA SOUTHEASTERN UNIVERSITY · PI MOVILA, ALEXANDRU · 2019 to 2020
$665k
Role of platelets in periodontal bone remodeling.R15DE027851 · NIDCR · NOVA SOUTHEASTERN UNIVERSITY · PI KAWAI, TOSHIHISA · 2019 to 2020
$596k
Ceramide-mediated pathology in periodontitisR03DE027153 · NIDCR · NOVA SOUTHEASTERN UNIVERSITY · PI MOVILA, ALEXANDRU · 2019 to 2020
$528k
Effects of aging on MIF-mediated migration of circulating osteoclast precursors to particle-induced osteolysis lesionsR03AG053615 · NIA · NOVA SOUTHEASTERN UNIVERSITY · PI MOVILA, ALEXANDRU · 2017 to 2018
$173k
NIA NIH HHS 053615NIA NIH HHS R01 AG064003NIDCR NIH HHS R03 DE027153NIDCR NIH HHS R15 DE027851NIDCR NIH HHS R15 DE028699
6 · The paper itself

Abstract

Aging is associated with increased prevalence and severity of pathogenic outcomes of periodontal disease, including soft tissue degeneration and bone loss around the teeth. Although lipopolysaccharide (LPS) derived from the key periodontal pathogen Porphyromonas gingivalis (Pg) plays an important role in the promotion of inflammation and osteoclastogenesis via toll-like receptor (TLR)4 signaling, its pathophysiological role in age-associated periodontitis remains unclear. This study investigated the possible effects of Pg-LPS on RANKL-primed osteoclastogenesis and ligature-induced periodontitis in relation to aging using young (2 months old) and aged (24 months old) mice. To the best of our knowledge, our results indicated that expression of TLR4 was significantly diminished on the surface of osteoclast precursors isolated from aged mice compared with that of young mice. Furthermore, our data demonstrated that the TLR4 antagonist (TAK242) dramatically decreased the numbers of tartrate-resistant acid phosphatase positive (TRAP+) osteoclasts differentiated from RANKL-primed young osteoclast precursors (OCPs) compared with those isolated from aged mice in response to Pg-LPS. In addition, using a ligature-induced periodontitis mouse model, we demonstrated that Pg-LPS elevated (1) secretion of senescence-associated secretory phenotype (SASP) markers, including the pro-inflammatory cytokines TNF-α, IL-6, and IL-1β, as well as osteoclastogenic RANKL, and (2) the number of OCPs and TRAP+ osteoclasts in the periodontal lesion induced in young mice. In contrast, Pg-LPS had little, or no, effect on the promotion of periodontitis inflammation induced in aged mice. Altogether, these results indicated that periodontal disease in older mice occurs in a manner independent of canonical signaling elicited by the Pg-LPS/TLR4 axis.

Indexed as

PeriodontitisPorphyromonas gingivalisAgingAnimalsLipopolysaccharidesMiceOsteoclastsLipopolysaccharidesAgingBone lossOsteoclastogenesisPeriodontitisPorphyromonas gingivalis lipopolysaccharide

Identifiers

PMID32851571
PMCPMC8050187
OpenAlexW3080223897

What OpenQuestion holds

Textmetadata
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 OpenQuestion graph.