Evidence map›Paper›PMID 19656030›Full record

ArticleJournal of periodontology2009

Ceruloplasmin induces polymorphonuclear leukocyte priming in localized aggressive periodontitis.

Tomoyuki Iwata, Alpdogan Kantarci, Motohiko Yagi, Tina Jackson, Hatice Hasturk, Hidemi Kurihara, Thomas E Van Dyke

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of periodontology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 26% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Inhibition of peripheral blood neutrophil oxidative burst in periodontitis patients with a homeopathic medication Traumeel S.Medical science monitor : international medical journal of experimental and clinical research · 2011
    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 3 institutions in 2 countries.

Tomoyuki IwataDepartment of Periodontology and Oral Biology, Boston University Goldman School of Dental Medicine, Boston, MA, USA.
Alpdogan Kantarci
Motohiko Yagi
Tina Jackson
Hatice Hasturk
Hidemi Kurihara
Thomas E Van Dyke
Boston University · USHiroshima University · JPNihon University · JP

Funding

YOGA INDUCED CHANGES IN BRAIN GABA LEVELSM01RR000533 · NCRR · BOSTON UNIVERSITY MEDICAL CAMPUS · PI HOLICK, MICHAEL F. · 1985 to 2008
$19.4M
Specialized Center for Oral Inflammation and ResolutionP50DE016191 · NIDCR · BRIGHAM AND WOMEN'S HOSPITAL · PI SERHAN, CHARLES NICHOLAS · 2004 to 2010
$13.6M
NCRR NIH HHS M01 RR000533NCRR NIH HHS RR00533NIDCR NIH HHS DE16191NIDCR NIH HHS P50 DE016191
6 · The paper itself

Abstract

backgroundPolymorphonuclear leukocytes (PMNs) from subjects with localized aggressive periodontitis (LAgP) present multiple functional abnormalities associated with a phenotypically primed PMN phenotype. Local inflammation is characterized by hypoxia, which leads to increased production of superoxide (O(2)(-)) by PMNs. Ceruloplasmin (CP) is also induced by hypoxia and inflammation. The aim of this study was to investigate the role of CP in O(2)(-) generation in PMNs from healthy subjects and patients with LAgP.

methodsPMNs were isolated from healthy subjects and those with LAgP (N = 36). Superoxide was measured by cytochrome-C reduction at 550 nm. Intracellular CP expression was analyzed by real-time polymerase chain reaction and Western blotting. Serum levels of CP were measured by enzyme-linked immunosorbent assay. Intracellular iron ion conversion was spectrophotometrically determined by measuring the absorbance of sigma-phenanthroline at 510 nm.

resultsO(2)(-) generation was significantly higher in LAgP PMNs before and after stimulation with formyl-methionyl-leucyl-phenylalanine (100 nM). CP expression in PMNs and CP levels in serum were significantly higher in subjects with LAgP compared to the PMNs and serum samples from matched healthy donors (P <0.05). LAgP PMNs also had significantly higher levels of Fe(3+) and lower levels of Fe(2+) compared to healthy PMNs (P <0.05), suggesting increased iron conversion. Exogenous CP treatment of healthy PMNs resulted in significant increases in O(2)(-) generation and iron ion conversion similar to LAgP PMNs.

conclusionLAgP PMNs are primed to express higher levels of CP, leading to hypoxia-mediated O(2)(-) generation in PMNs and increased oxidative stress and neutrophil-mediated tissue injury in LAgP.

Indexed as

AdolescentAdultAggressive PeriodontitisBlotting, WesternCase-Control StudiesCeruloplasminCytochromes cFemaleFerric CompoundsFerrous CompoundsHumansHypoxiaMaleNeutrophil ActivationNeutrophilsN-Formylmethionine Leucyl-PhenylalanineCeruloplasminCytochromes cFerric CompoundsFerrous CompoundsN-Formylmethionine Leucyl-PhenylalanineOxidantsSuperoxides

Identifiers

PMID19656030
PMCPMC2774796
OpenAlexW1992562437

What OpenQuestion holds

Textmetadata
LicenceTDM
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.