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Association of Chlamydia trachomatis, C. pneumoniae, and IL-6 and IL-8 Gene alterations with heart diseases

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2019
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Association of Chlamydia trachomatis, C. pneumoniae, and IL-6 and IL-8 Gene alterations with heart diseases.pdf (1.640xmlui.dri2xhtml.METS-1.0.size-megabytes)
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http://patua.iec.gov.br//handle/iec/3594
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Almeida, Nubia Caroline Costa
Queiroz, Maria Alice Freitas
Lima, Sandra Souza
Costa, Igor Brasil
Fossa, Marco Antonio Ayin
Vallinoto, Antonio Carlos Rosário
Ishak, Marluísa de Oliveira Guimarães
Ishak, Ricardo
xmlui.dri2xhtml.METS-1.0.item-abstract
Atherosclerosis is a progressive disease characterized by chronic inflammation of the arterial walls, associated with genetic and infectious factors. The present study investigated the involvement of Chlamydia trachomatis and Chlamydia pneumoniae infections and immunological markers (C-reactive protein, CRP, TNF-alpha, IL-6, IL-8, and IL-10) in the process of atherosclerosis. The evaluation included 159 patients for surgical revascularization (CAD) and 71 patients for surgical heart valve disease (HVD) at three hospitals in Belem, Brazil. The control group (CG) comprised 300 healthy individuals. Blood samples collected before surgery were used for antibodies detection (enzyme immunoassay), CRP (immunoturbidimetry) and IL-6 levels (enzyme immunoassay). Tissue fragments (atheroma plaque, heart valve and ascending aorta) were collected during surgery and subjected to qPCR for detection of bacterial DNA. Promoter region polymorphisms of eachmarker and relative quantification of TNF-alpha, IL-8, and IL-10 gene expression were performed. Demography and social information were similar to the general population involved with both diseases. Antibody prevalence to C. trachomatis was 30.6, 20.3, and 36.7% (in the CAD, HVD, and CG, respectively) and to C. pneumoniae was 83.6, 84.5, and 80.3% (in the CAD, HVD, and CG, respectively). C. trachomatis cryptic plasmid DNA was detected in 7.4% of the samples. Frequency of IL6-174G > C polymorphism was higher in CAD and HVD than in CG regardless of previous exposure to Chlamydia. Previous C. trachomatis infection showed involvement in HVD and CAD. Significant association between disease and previous C. pneumoniae infection was found only among HVD. GG genotype of IL6-174G > C is apparently a risk factor for heart disease, whereas AT genotype of IL8-251A > T was mainly involved in valvulopathies, including patients with prior exposure to C. pneumoniae.
xmlui.dri2xhtml.METS-1.0.item-citation
ALMEIDA, Nubia Caroline Costa et al. Association of Chlamydia trachomatis, C. pneumoniae, and IL-6 and IL-8 Gene alterations with heart diseases. Frontiers in Immunology, v. 10 n. 87, Feb. 2019.
xmlui.dri2xhtml.METS-1.0.item-decsPrimary
Sistema Cardiovascular
Aterosclerose
Vasos Coronários / anatomia & histologia
Valva Aórtica / anatomia & histologia
Chlamydia trachomatis / patogenicidade
Chlamydophila pneumoniae / patogenicidade
Biomarcadores / análise
Infecções por Chlamydia / patogenicidade
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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br
 

 

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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br