Publication details

Apolipoprotein E gene polymorphisms in chronic periodontitis

Authors

BOŘILOVÁ LINHARTOVÁ Petra MÁCHAL Jan BÁRTOVÁ Jiřina POSKEROVÁ Hana VOKURKA Jan FASSMANN Antonín IZAKOVIČOVÁ HOLLÁ Lydie

Year of publication 2013
Type Conference abstract
MU Faculty or unit

Faculty of Medicine

Citation
Description Objective: Periodontal diseases can be related to common systemic conditions, and, as recently described, alterations in blood lipid levels. The aim of this study was to analyze two apolipoprotein E (ApoE) gene polymorphisms in patients with chronic periodontitis (CP) in relation to periodontopathic bacteria and lipid levels. Methods: 469 unrelated subjects were included in this case-control study. Genomic DNA of 294 patients with CP and 175 healthy/non-periodontitis controls were genotyped, using the real-time polymerase chain reaction (RT-PCR) method monitored by SYBR Green, for ApoE (rs429358 and rs7412) gene polymorphisms. Subgingival bacterial colonization was investigated by the DNA-microarray based on a periodontal pathogen detection kit and lipid levels were measured in a subgroup of subjects. Results: There was no evidence for a significant association between ApoE gene polymorphisms and CP (E2/E2 vs. E3/E3: OR=0.63, 95%CI=0.12-3.15; E2/E3 vs. E3/E3: OR=1.61, 95%CI=0.84-3.11; E2/E4 vs. E3/E3: OR=1.25, 95%CI=0.23-6.95; E3/E4 vs. E3/E3: OR=1.11, 95%CI=0.65-1.88; E4/E4 vs. E3/E3: OR=0.63, 95%CI=0.15-2.55; allele E2 vs. allele E3: OR=1.26, 95%CI=0.74-2.14; allele E4 vs. allele E3: OR=0.97, 95%CI=0.63-1.51). Patients with CP had increased total cholesterol and LDL levels compared to controls (P<0.05), however no significant differences were found for triglyceride and HDL levels. Gene variability in the ApoE gene influenced LDL levels marginally (P=0.07) but did not modify total cholesterol, triglyceride and HDL levels or the occurrence of periodontal pathogens in subgingival pockets. Conclusions: In Czech population studied, ApoE genetic variations rs429358 and rs7412 were not associated with susceptibility to and severity of chronic periodontitis or with the presence of periodontopathic bacteria.
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