The aim of this study was to analyze the association between BMP2 (rs1884302) and DLX3 (rs2278163) gene polymorphisms and dental caries in primary and permanent dentitions. A total of 914 subjects were genotyped by the TaqMan methods: 176 caries-free children (with Decayed/Missing/Filled Teeth, DMFT = 0), 542 patients with dental caries in permanent dentition (DMFT ≥1), 83 caries-free children with primary teeth (with decayed/missing/filled teeth, dmft = 0), and 113 children with early childhood caries (ECC, dmft ≥1). There were no significant differences in allele/genotype frequencies between patients with caries in permanent dentition/ECC and caries-free children or between patients with very low (DMFT = 0-2), low (DMFT = 3-5), moderate (DMFT = 6-8), or high (DMFT ≥9) caries experience. Variability in BMP2 and DLX3 was not associated with caries in the Czech population.
- MeSH
- alely MeSH
- dentice trvalá MeSH
- dítě MeSH
- DMF Index MeSH
- genetická predispozice k nemoci MeSH
- genotyp MeSH
- homeodoménové proteiny genetika MeSH
- jednonukleotidový polymorfismus * MeSH
- kostní morfogenetický protein 2 genetika MeSH
- lidé MeSH
- mladiství MeSH
- předškolní dítě MeSH
- stupeň závažnosti nemoci MeSH
- transkripční faktory genetika MeSH
- zubní kaz genetika MeSH
- zuby mléčné MeSH
- Check Tag
- dítě MeSH
- lidé MeSH
- mladiství MeSH
- mužské pohlaví MeSH
- předškolní dítě MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Česká republika MeSH
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.
- MeSH
- alely MeSH
- DMF Index MeSH
- genetická predispozice k nemoci genetika MeSH
- genetické asociační studie MeSH
- genotyp MeSH
- gingivitida epidemiologie genetika MeSH
- jednonukleotidový polymorfismus * MeSH
- lidé MeSH
- mladiství MeSH
- odds ratio MeSH
- receptory kalcitriolu genetika MeSH
- restrikční endonukleasy typu II MeSH
- studie případů a kontrol MeSH
- zubní kaz epidemiologie genetika MeSH
- Check Tag
- lidé MeSH
- mladiství MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Česká republika epidemiologie MeSH
The aim of this study was to analyze the association between BMP2 (rs1884302) and DLX3 (rs2278163) gene polymorphisms and dental caries in primary and permanent dentitions. A total of 914 subjects were genotyped by the TaqMan methods: 176 caries-free children (with Decayed/Missing/Filled Teeth, DMFT = 0), 542 patients with dental caries in permanent dentition (DMFT ≥1), 83 caries-free children with primary teeth (with decayed/missing/filled teeth, dmft = 0), and 113 children with early childhood caries (ECC, dmft ≥1). There were no significant differences in allele/genotype frequencies between patients with caries in permanent dentition/ECC and caries-free children or between patients with very low (DMFT = 0-2), low (DMFT = 3-5), moderate (DMFT = 6-8), or high (DMFT ≥9) caries experience. Variability in BMP2 and DLX3 was not associated with caries in the Czech population.
- MeSH
- alely MeSH
- dentice trvalá MeSH
- dítě MeSH
- DMF Index MeSH
- genetická predispozice k nemoci MeSH
- genotyp MeSH
- homeodoménové proteiny genetika MeSH
- jednonukleotidový polymorfismus * MeSH
- kostní morfogenetický protein 2 genetika MeSH
- lidé MeSH
- mladiství MeSH
- předškolní dítě MeSH
- stupeň závažnosti nemoci MeSH
- transkripční faktory genetika MeSH
- zubní kaz genetika MeSH
- zuby mléčné MeSH
- Check Tag
- dítě MeSH
- lidé MeSH
- mladiství MeSH
- mužské pohlaví MeSH
- předškolní dítě MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Česká republika MeSH
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.
- MeSH
- alely MeSH
- angiotensin konvertující enzym genetika MeSH
- dentice trvalá * MeSH
- DMF Index MeSH
- genetická predispozice k nemoci genetika MeSH
- genetické asociační studie MeSH
- genotyp MeSH
- introny MeSH
- lidé MeSH
- mladiství MeSH
- mutace INDEL * MeSH
- polymorfismus genetický * MeSH
- předškolní dítě MeSH
- sexuální faktory MeSH
- studie případů a kontrol MeSH
- zubní kaz epidemiologie genetika MeSH
- zuby mléčné * imunologie mikrobiologie MeSH
- Check Tag
- lidé MeSH
- mladiství MeSH
- mužské pohlaví MeSH
- předškolní dítě MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Česká republika epidemiologie MeSH
Interleukin-17 contributes to the pathogenesis of type 1 diabetes mellitus (T1DM) and chronic periodontitis (CP). We analyzed IL-17A -197A/G and IL-17F +7488C/T polymorphisms in T1DM and CP and determined their associations with IL-17 production and occurrence of periopathogens. Totally 154 controls, 125 T1DM, and 244 CP patients were genotyped using 5' nuclease TaqMan(®) assays. Bacterial colonization was investigated by a DNA-microarray kit. Production of IL-17 after in vitro stimulation of mononuclear cells by mitogens and bacteria was examined by the Luminex system. Although no differences in the allele/genotype frequencies between patients with CP and T1DM + CP were found, the IL-17A -197 A allele increased the risk of T1DM (P < 0.05). Levels of HbA1c were significantly elevated in carriers of the A allele in T1DM patients (P < 0.05). Production of IL-17 by mononuclear cells of CP patients (unstimulated/stimulated by Porphyromonas gingivalis) was associated with IL-17A A allele (P < 0.05). IL-17A polymorphism increased the number of Tannerella forsythia and Treponema denticola in patients with CP and T1DM + CP, respectively (P < 0.05). IL-17A gene variability may influence control of T1DM and the "red complex" bacteria occurrence in patients with CP and T1DM + CP. Our findings demonstrated the functional relevance of the IL-17A polymorphism with higher IL-17 secretion in individuals with A allele.
- MeSH
- alely MeSH
- chronická parodontitida krev genetika mikrobiologie MeSH
- diabetes mellitus 1. typu krev genetika MeSH
- dospělí MeSH
- frekvence genu genetika MeSH
- genotyp MeSH
- interleukin-17 krev genetika MeSH
- jednonukleotidový polymorfismus genetika MeSH
- leukocyty mononukleární metabolismus MeSH
- lidé středního věku MeSH
- lidé MeSH
- studie případů a kontrol MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
Úvod a cíl studie: Genetické predispozice hrají významnou roli v etiopatogenezi jak chronické parodontitidy (CP), tak i diabetes mellitus (DM), mezi kterými existuje reciproční vztah. U obou chorob jsou za kandidátní považovány geny pro imunoregulační faktory, k nimž se řadí signální peptidy zvané cytokiny. Cílem naší studie bylo analyzovat polymorfismy ve vybraných cytokinech, konkrétně v interleukin-1 (IL-1) genovém klasteru a v IL-6 genu, u pacientů s CP s/bez DM a porovnat je se zdravou populací. Metodika: Do studie případů a kontrol (tzv. case-control study) jsme zařadili celkem 590 osob: 226 zdravých; 248 pacientů pouze s CP, 36 pacientů s CP i DM 1. typu (T1DM), 80 pacientů s CP a DM 2. typu (T2DM). Pro genotypizaci jsme využili postupů založených na polymerázové řetězové reakci (PCR) a následné restrikční analýze. Výsledky: Frekvence alel a genotypů sledovaných polymorfismů ve vybraných cytokinech, kromě varianty v IL-1B genu se mezi skupinami pacientů a zdravými jedinci statisticky významně nelišily. V IL-1 genovém klastru jsme však nalezli protektivní haplotyp u CP a haplotypy zvyšující riziko rozvoje CP u pacientů s T2DM i s T1DM. Rovněž v genu pro IL-6 jsme prokázali signifikantní rozdíl ve frekvenci haplotypu GGG mezi pacienty s CP a zdravými jedinci. Závěr: Naše výsledky naznačují, že na rozdíl od analýz jednotlivých polymorfismů různé haplotypy v IL-1 genovém klasteru i v promotoru genu pro IL-6 mohou ovlivňovat riziko rozvoje CP u pacientů s/bez DM v české populaci. Domníváme se, že stanovení haplotypů má, oproti sledování jednotlivých alelických a genotypových frekvencí, lepší výpovědní hodnotu a měla by mu být dána při genetické analýze komplexních nemocí přednost.
Introduction and aim of study: Genetic predispositions play an important role in the etiopathogenesis of periodontal diseases (CP) and diabetes mellitus (DM). Recent studies have also proven a bidirectional interrelationship between these conditions. The immunoregulatory factors, including signal peptides, so called cytokines, are considered as candidate genes for both of these diseases. The aim of our study was to analyse polymorphisms in selected cytokines, namely in the interleukin-1 (IL-1) gene cluster and IL-6 gene, in patients with CP and with/without DM and compare them with the healthy population. Methods: 590 subjects were enrolled in this case-control study: 226 healthy/non-periodontitis subjects, 248 patients only with CP, 36 patients with CP and type 1 DM (T1DM), 80 patients with CP and type 2 DM (T2DM). For genotyping methods based on polymerase chain reaction (PCR) and subsequent restriction analysis were used. Results: The allele and genotype frequencies of the studied polymorphisms, except for a variant in the IL-1B gene, did not differ significantly between the groups of patients and healthy controls. However, in the IL-1 gene cluster, a protective haplotype in CP and risk haplotypes for CP in patients with T2DM or with T1DM were found. In addition, in the IL-6 gene, a significant difference in GGG haplotype frequencies between the groups of patients with CP and healthy controls was identified. Conclusion: Our results suggest, that contrary to analyses of individual polymorphisms, different haplotypes in the IL-1 gene cluster and IL-6 gene promoter may affect the risk for CP development in patients with/without DM in Czech population. We assume that the determination of haplotypes may have a better predictive value than study of individual allele and genotype frequencies and it should be preferred in genetic analysis of complex diseases.
- MeSH
- chronická nemoc MeSH
- cytokiny MeSH
- diabetes mellitus 1. typu genetika imunologie metabolismus MeSH
- diabetes mellitus 2. typu genetika imunologie metabolismus MeSH
- dospělí MeSH
- frekvence genu MeSH
- genetická predispozice k nemoci * MeSH
- genotypizační techniky MeSH
- haplotypy MeSH
- interleukin-1 fyziologie genetika MeSH
- interleukin-6 fyziologie genetika MeSH
- komplikace diabetu * MeSH
- lidé středního věku MeSH
- lidé MeSH
- parodontitida * genetika imunologie MeSH
- polymorfismus genetický genetika MeSH
- senioři MeSH
- statistika jako téma MeSH
- studie případů a kontrol MeSH
- ztráta parodontálního úponu diagnóza MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- práce podpořená grantem MeSH
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.
- MeSH
- dítě MeSH
- DMF Index MeSH
- extrakce zubů statistika a číselné údaje MeSH
- frekvence genu genetika MeSH
- genetická variace genetika MeSH
- genotyp MeSH
- guanin MeSH
- indexy plaku MeSH
- isoleucin genetika MeSH
- jednonukleotidový polymorfismus genetika MeSH
- lidé MeSH
- mladiství MeSH
- náchylnost k zubnímu kazu genetika MeSH
- parodontální index MeSH
- polymorfismus genetický genetika MeSH
- přenašeč glukosy typ 2 genetika MeSH
- receptory spřažené s G-proteiny genetika MeSH
- studie případů a kontrol MeSH
- threonin genetika MeSH
- thymin MeSH
- trvalá zubní náhrada statistika a číselné údaje MeSH
- valin genetika MeSH
- zubní kaz genetika MeSH
- Check Tag
- dítě MeSH
- lidé MeSH
- mladiství MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- srovnávací studie MeSH
- Geografické názvy
- Česká republika MeSH
- Publikační typ
- abstrakt z konference MeSH
