Lack of Association between Lactotransferrin Polymorphism and Dental Caries

Aim: We analyzed the VDR TaqI (rs731236) gene polymorphism in children with and those without dental caries. Methods: A total of 388 subjects, 153 caries-free (with decayed/missing/filled teeth [DMFT] = 0) and 235 children with dental caries (DMFT ≥1), were genotyped by the TaqMan method. Results: Although no significant differences in VDR TaqI allele and genotype frequencies between caries-free and caries-affected children were detected, a significant association between this polymorphism and gingivitis was found (p < 0.05). Conclusions: In contrast to previous studies from China and Turkey, the VDR TaqI gene variant cannot be used as a marker for identification of Czech children with increased dental caries risk.

Section: Subjectsmentioning

confidence: 99%

Vitamin D Receptor TaqI Gene Polymorphism and Dental Caries in Czech Children

Hollá¹,

Linhartová²,

Kaštovský³

et al. 2016

“…The children underwent dental examination at the Clinic of Stomatology at St. Anne's University Hospital and the Faculty of Medicine, Masaryk University in Brno, as described previously [Volckova et al, 2014]. The study group comprised caries-affected subjects (with DMFT ≥ 1; n = 561; 297 boys and 264 girls) and caries-free children (with DMFT = 0; n = 182; 99 boys and 83 girls).…”

Section: Subjectsmentioning

confidence: 99%

ACE Insertion/Deletion Polymorphism Associated with Caries in Permanent but Not Primary Dentition in Czech Children

Linhartová

Kaštovský²,

Bartošová³

et al. 2016

Objective: Dental caries is a multifactorial, infectious disease where genetic predisposition plays an important role. Insertion/deletion (I/D) polymorphism of angiotensin-converting enzyme (ACE) has very recently been associated with caries in Polish children. The aim of this study was to analyze ACE I/D polymorphism in a group of caries-free children versus subjects affected by dental caries in the Czech population. Materials and Methods: In this case-control study, 182 caries-free children (with decayed/missing/filled teeth, DMFT = 0), 561 subjects with dental caries (DMFT ≥1) aged 13-15 years and 220 children aged 2-6 years with early childhood caries (ECC, dmft ≥1) were included. Genotype determination of ACE I/D polymorphism in intron 16 was based on the TaqMan method. Results: Although no significant differences in the allele or genotype frequencies between the caries-free children and those affected by dental caries were observed, statistically significant differences between the children with DMFT = 0 and the subgroup of 179 patients with high caries experience (DMFT ≥4; p < 0.01 and p < 0.05, respectively) were detected. The comparison of DD versus II+ID genotype frequencies between the patients with DMFT ≥1 or DMFT ≥4 and healthy children also showed significant differences (31.5% or 35.6% vs. 23.6%, p < 0.05 or p < 0.01, respectively). A gender-based analysis identified a significant difference in the DD versus II+ID genotype frequencies only in girls (p < 0.05). In contrast, no significant association of ACE I/D polymorphism with ECC in young children was found (p > 0.05). Conclusions:ACE I/D polymorphism may be associated with caries in permanent but not primary dentition, especially in girls in the Czech population.

“…Children underwent dental examination at the Clinic of Stomatology at St. Anne's University Hospital and the Faculty of Medicine, Masaryk University, as described previously [Volckova et al, 2014]. The study group (n = 482; 242 boys and 240 girls) comprised caries-affected children.…”

Section: Subjectsmentioning

confidence: 99%

GLUT2 and TAS1R2 Polymorphisms and Susceptibility to Dental Caries

Hollá¹,

Linhartová²,

Lučanová³

et al. 2015

Objective: Dental caries is one of the most frequent multifactorial diseases. Among the numerous factors influencing the risk of caries, genetics plays a substantial role, with heritability ranging from 40 to 60%. Gene variants affecting taste preference and glucose transport were recently associated with caries risk. The aim of this study was to analyze two common polymorphisms in the sweet taste receptor (TAS1R2) and glucose transporter (GLUT2) genes in children with dental caries and healthy controls in the Czech population. Methods: A total of 637 unrelated Caucasian children, aged 11-13 years, were included in this case-control study. One hundred and fifty-five subjects were caries-free (with decayed/missing/filled teeth, DMFT = 0) and 482 children were caries-affected (DMFT ≥ 1). The TAS1R2 (Ile191Val, rs35874116) and GLUT2 (Thr110Ile, rs5400) genotypes were determined using the 5′ nuclease TaqMan® assay for allelic discrimination. Results: Compared with subjects with the common Thr allele, carriers of the Ile allele of GLUT2 had significantly more frequently dental caries (p < 0.05, OR = 1.639, 95% CI: 1.089-2.466). Similarly, children with the Val allele for the TAS1R2 Ile191Val polymorphism were more frequently affected by caries than children who carried the Ile allele (p < 0.05, OR = 1.413, 95% CI: 1.014-1.969). In contrast, no significant associations between GLUT2 and/or TAS1R2 polymorphisms and fillings were found, but allele frequencies of the TAS1R2 variant were marginally significantly different between children with DMFT = 0 and DMFT ≥1 (p = 0.053, OR = 1.339, 95% CI: 0.996-1.799). However, no significant interaction between both genes and risk of dental caries was found. Conclusions: In conclusion, GLUT2 and TASR1 polymorphisms may influence the risk of caries in the Czech population.