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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2008-5-20
pubmed:abstractText
Periodontitis and coronary artery disease (CAD) are inflammatory diseases and associated with each other. The major histocompatibility complex (MHC) region carries genes involved in immune response and inflammation. We investigated whether the MHC genes correlate with the presence of periodontitis or with the occurrence of periodontal pathogens in patients with CAD. Blood and saliva samples from CAD patients (n = 106) were collected at the time of hospitalization. Nine MHC genetic markers [human leukocyte antigen (HLA)-A, HLA-B, HLA-DRB1, lymphotoxin alpha (LTA) +253(a/g), +496(C/T), +633(c/g), +724(C/A), C4A and C4B)] were typed. Based on panoramic tomography, patients were categorized into nonperiodontitis and periodontitis groups. Two major periodontal pathogens, Aggregatibacter (Actinobacillus) actinomycetemcomitans and Porphyromonas gingivalis, were cultivated and polymerase chain reaction-amplified from salivary samples. Serum immunoglobulin (Ig)A and IgG antibody levels to these pathogens were measured. In the univariate analysis, LTA+496C allele (OR = 5.29; 95% CI = 2.07-13.51, P = 0.00027), and the occurrence of P. gingivalis in saliva (OR = 4.74; 95% CI = 1.64-13.70; P = 0.002) were more frequent in periodontitis when compared with nonperiodontitis. Similarly, serum IgA antibody level against the pathogen was increased in periodontitis (P = 0.048). In the multiple logistic regression analysis, when a wide range of covariates was included, the LTA+496C allele (OR = 10.87; 95% CI = 3.23-36.60; P = 0.00012) and the elevated serum IgA antibody level against P. gingivalis (OR = 1.56; 95% CI = 1.05-2.30; P = 0.026) remained as significant risk factors for periodontitis. In conclusion, the major finding of this study is that the LTA+496C allele is associated with periodontitis in patients with CAD.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0001-2815
pubmed:author
pubmed:issnType
Print
pubmed:volume
71
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
530-7
pubmed:meshHeading
pubmed-meshheading:18384488-Actinobacillus actinomycetemcomitans, pubmed-meshheading:18384488-Alleles, pubmed-meshheading:18384488-Antibodies, Bacterial, pubmed-meshheading:18384488-Coronary Artery Disease, pubmed-meshheading:18384488-Female, pubmed-meshheading:18384488-Genetic Markers, pubmed-meshheading:18384488-Genetic Predisposition to Disease, pubmed-meshheading:18384488-HLA Antigens, pubmed-meshheading:18384488-Humans, pubmed-meshheading:18384488-Immunoglobulin A, pubmed-meshheading:18384488-Immunoglobulin G, pubmed-meshheading:18384488-Inflammation, pubmed-meshheading:18384488-Lymphotoxin-alpha, pubmed-meshheading:18384488-Male, pubmed-meshheading:18384488-Middle Aged, pubmed-meshheading:18384488-Periodontitis, pubmed-meshheading:18384488-Porphyromonas gingivalis, pubmed-meshheading:18384488-Risk Factors, pubmed-meshheading:18384488-Saliva
pubmed:year
2008
pubmed:articleTitle
Lymphotoxin alpha LTA+496C allele is a risk factor for periodontitis in patients with coronary artery disease.
pubmed:affiliation
Department of Medicine, Helsinki University Central Hospital, Helsinki, Finland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Multicenter Study