Evidence map›Paper›PMID 8040277›Full record

ArticleThe Journal of clinical investigation1994

Pathogenesis of periodontitis: a major arginine-specific cysteine proteinase from Porphyromonas gingivalis induces vascular permeability enhancement through activation of the kallikrein/kinin pathway.

T Imamura, R N Pike, J Potempa, J Travis

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
21.7field-weighted citation impact, top 1% 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

49 citing papers in PubMed, 172 citations in OpenAlex.

  1. Proteases in intestinal health and disease.Nature reviews. Gastroenterology & hepatology · 2026
    Review
  2. Review
  3. Review
  4. Article
  5. Review
  6. Throat microbiota alterations in patients with hereditary angioedema.The World Allergy Organization journal · 2022
    Article
  7. Article
  8. Peptidylarginine Deiminase ofInternational journal of molecular sciences · 2020
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Fibrinogen Degradation Products and Periodontitis: Deciphering the Connection.Journal of clinical and diagnostic research : JCDR · 2015
    Article
  16. Glycyrrhetinic acid inhibits Porphyromonas gingivalis lipopolysaccharide-induced vascular permeability via the suppression of interleukin-8.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2013
    Article
  17. Article
  18. Article
  19. Cardiovascular disease and the role of oral bacteria.Journal of oral microbiology · 2010
    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

4 authors at 2 institutions in 3 countries.

T ImamuraDepartment of Biochemistry, University of Georgia, Athens 30602.
R N Pike
J Potempa
J Travis
Kumamoto University · JPUniversity of Georgia · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To elucidate the mechanism of production of an inflammatory exudate, gingival crevicular fluid (GCF), from periodontal pockets in periodontitis, we examined the vascular permeability enhancement (VPE) activity induced by an arginine-specific cysteine proteinase, Arg-gingipain-1 (RGP-1), produced by a major periopathogenic bacterium, Porphyromonas gingivalis. Intradermal injections into guinea pigs of RGP-1 (> 10(-8) M), or human plasma incubated with RGP-1 (> 10(-9) M), induced VPE in a dose- and activity-dependent manner but with different time courses for the two routes of production. VPE activity induced by RGP-1 was augmented by kininase inhibitors, inhibited by a kallikrein inhibitor and unaffected by an antihistamine drug. The VPE activity in human plasma incubated with RGP-1 also correlated closely with generation of bradykinin (BK). RGP-1 induced 30-40% less VPE activity in Hageman factor-deficient plasma and no VPE in plasma deficient in either prekallikrein (PK) or high molecular weight kininogen (HMWK). After incubation with RGP-1, plasma deficient in PK or HMWK, reconstituted with each missing protein, caused VPE, as did a mixture of purified PK and HMWK, but RGP-1 induced no VPE from HMWK. The VPE of extracts of clinically isolated P. gingivalis were reduced to about 10% by anti-RGP-1-IgG, leupeptin, or tosyl-L-lysine chloromethyl ketone, which paralleled effects observed with RGP-1. These results indicate that RGP-1 is the major VPE factor of P. gingivalis, inducing this activity through PK activation and subsequent BK release, resulting in GCF production at sites of periodontitis caused by infection with this organism.

Indexed as

HemagglutininsAdhesins, BacterialAnimalsCapillary PermeabilityCysteine EndopeptidasesGingipain Cysteine EndopeptidasesGuinea PigsHumansImmunizationImmunoglobulin GKallikreinsKininsPeriodontitisPorphyromonas gingivalisRabbitsAdhesins, BacterialCysteine EndopeptidasesGingipain Cysteine EndopeptidasesHemagglutininsImmunoglobulin GKallikreinsKinins

Identifiers

PMID8040277
PMCPMC296317
OpenAlexW1996283967

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.