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Association between COX-2 rs 6681231 Genotype and Interleukin-6 in Periodontal Connective Tissue. A Pilot Study

[PDF] Mesa_Periodontal.pdf (762.0Kb)
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URI: http://hdl.handle.net/10481/30970
ISSN: 1932-6203
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Autor
Mesa Aguado, Francisco Luis; O'Valle Ravassa, Francisco Javier; Rizzo, Manfredi; Cappello, Francesco; Donos, Nikos; Parkar, Mohamed; Chaudhary, Navidah; Carini, Francesco; Muñoz, Ricardo; Nibali, Luigi
Editorial
Public Library of Science (PLOS)
Materia
Biopsy
 
Connective tissue
 
Epithelium
 
Hemorrhage
 
Inflammation
 
Monocytes
 
Periodontitis
 
Plasma cells
 
Fecha
2014
Referencia bibliográfica
Mesa, F.; et al. Association between COX-2 rs 6681231 Genotype and Interleukin-6 in Periodontal Connective Tissue. A Pilot Study. Plos One, 9(2): e87023 (2014). [http://hdl.handle.net/10481/30970]
Patrocinador
This study was partially undertaken at the UCL Eastman Dental Institute, which received a proportion of funding from the Department of Health’s National Institute of Health Research (NIHR) Biomedical Research Centres funding scheme.
Resumen
[Objectives] The aim of this pilot study was to investigate associations between IL-6 and COX-2 expression in gingival biopsies and both clinical diagnosis and genotypes in the IL-6 and COX-2 genes. [Design] A case-control study included 41 gingival biopsies obtained from Caucasian patients grouped according to clinical diagnosis of gingival health (n = 10), gingivitis (n = 15) or chronic periodontitis (n = 16). Immunohistochemistry analyses were performed to determine COX-2 expression in lamina propria, IL-6 expression in lamina propria and gingival epithelium and level of inflammatory cell infiltrate. Individual DNA was extracted and genotyped by real-time PCR for IL6 SNPs rs 2069827 and rs 2069825 and for COX-2 rs 6681231. [Results] The percentage of cellular COX-2 expression was associated with the extent of periodontal disease (Arbes index p = 0.026) and inflammatory infiltrate (p<0.0001). No association was observed between IL6 haplotypes and cells positive to IL-6 or COX-2 in gingival tissues. The COX-2 rs 6681231 was associated with cells positive to IL-6 in the connective tissue (p = 0.032). [Conclusions] COX-2 expression in gingival tissues may be a marker of periodontal disease severity. COX-2 rs 6681231 may be associated with IL-6 local production in gingival tissues.
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