Evidence map›Paper›PMID 19453571›Full record

ArticleJournal of clinical periodontology2009

Aggressive periodontitis is likely influenced by a few small effect genes.

Flavia M de Carvalho, Eduardo M B Tinoco, Manika Govil, Mary L Marazita, Alexandre R Vieira

Abstract readComparative Study
In one paragraph

Article in Journal of clinical periodontology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

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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

5 authors.

Flavia M de CarvalhoDepartment of Periodontology, Rio de Janeiro State University, Rio de Janeiro, Brazil.
Eduardo M B Tinoco
Manika Govil
Mary L Marazita
Alexandre R Vieira

Funding

X-LINKED EXTENSION OF THE REVISED HASEMAN-ELSTON ALGORITHM FOR LINKAGE ANALYSISP41RR003655 · NCRR · LOUISIANA STATE UNIV HSC NEW ORLEANS · PI ELSTON, ROBERT C. · 1987 to 2011
$11.5M
Statistical Genetic Analysis of Complex Craniofacial and Dental Genetic DisordersR00DE018085 · NIDCR · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GOVIL, MANIKA · 2011 to 2013
$709k
Statistical Genetic Analysis of Complex Craniofacial and Dental Genetic DisordersK99DE018085 · NIDCR · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GOVIL, MANIKA · 2009 to 2010
$308k
NCRR NIH HHS P41 RR003655NIDCR NIH HHS K99 DE018085NIDCR NIH HHS R00 DE018085
6 · The paper itself

Abstract

aimTo evaluate the inheritance mode of aggressive periodontitis in a collection of families with a similar geographic origin. MATERIALS AND

methodsSegregation analysis was performed in pedigree data from 74 families by the use of the SEGREG program of SAGE v.5.4.2. Homogeneous no transmission, homogeneous Mendelian transmission, homogeneous general transmission, semi-general transmission and heterogeneous general transmission models were tested assuming the prevalence of aggressive periodontitis as 1% and no deviations from Hardy-Weinberg equilibrium. The parameters of the model were estimated by the method of maximum likelihood, which provides the overall ln (likelihood), -2ln and the AIC (Akaike's score) for each model. The likelihood ratio test (LRT) was used to compare each model against a fully general model (p>0.05).

resultsThe most parsimonious mode of inheritance was the semi-general transmission model that allows the heterozygote transmission probability to vary.

conclusionThis result provides strong support for the hypothesis that genetic factors play a role in aggressive periodontitis and that a few loci, each with relatively small effects, contribute to aggressive periodontitis, with or without interaction with environmental factors.

Indexed as

Aggressive PeriodontitisAllelesBrazilChromosome SegregationFemaleGene FrequencyGenetic HeterogeneityGenetic Predisposition to DiseaseGenetic VariationGenotypeHeterozygoteHumansLikelihood FunctionsMaleModels, GeneticPedigree

Identifiers

PMID19453571
PMCPMC2731969

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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.