RRML - Study regarding the use of salivary 8‑hydroxideoxyguanosine and Interleukin-1 gene polymorphism - as potential biomarkers in the diagnosis of aggressive periodontitis

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Nr. 21(1)/2013 DOI:10.2478/rrlm-2013-0020

Study regarding the use of salivary 8‑hydroxideoxyguanosine and Interleukin-1 gene polymorphism - as potential biomarkers in the diagnosis of aggressive periodontitis

Victoria Badea, Mircea Grigorian, Cristina Nucă, Corneliu Amariei, Alina Martinescu, Lavinia Voineagu

Abstract:

The aim of the present study is to explore the use of salivary 8-hydroxideoxyguanosine (8-OHdG) and Interleukin-1 (IL-1) gene polymorphism in the diagnosis of the patients with aggressive periodontitis. The correlation between salivary 8-OHdG level and clinical parameters was analyzed, at the same time as the use of 8-OHdG level and IL-1gene polymorphism in patients with aggressive periodontitis. Eighteen patients suffering from aggressive periodontitis and 18 healthy subjects without any sign of periodontitis were enrolled into the study after clinical examination. The analysis of genetic polymorphism of IL-1 gene was carried out from oral swabs by using the GenoType IL-1 test; the 8-OHdG biomarker was quantified from saliva samples by using an ELISA competition test. The salivary level of 8-OHdG in the control group was 0.70±0.54 ng/mL and in aggressive periodontitis, 6.93±2.90 ng/mL (p<0.001). A positive genotype consisting of allele 2 (Thymine/Thymine) was found with lower prevalence in healthy subjects - 5.56% - when compared to aggressive periodontitis, respectively 72.22 % (p<0.001). Our study demonstrated that the salivary level of the 8-OHdG biomarker and IL-1 gene polymorphism can be used in the evaluation of the oro-dental status at patients with aggressive periodontitis.

Keywords: 8-OHdG,IL-1,saliva,periodontitis

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Badea V, Grigorian M, Nucă C, Amariei C, Martinescu A, Voineagu L. Study regarding the use of salivary 8‑hydroxideoxyguanosine and Interleukin-1 gene polymorphism - as potential biomarkers in the diagnosis of aggressive periodontitis. Rev Romana Med Lab. 2013;21(1):75-82. DOI:10.2478/rrlm-2013-0020