Core for Advanced Molecular Investigation, Graduate Program in Health Sciences, Center for Biological and Health Sciences, Pontifical Catholic University of Paraná, Imaculada Conceição St 1155 - CCBS/PPGCS, Prado Velho, CEP 80215-901 Curitiba, Paraná, Brazil.
J Dent Res. 2011 Jun;90(6):735-9. doi: 10.1177/0022034510397614. Epub 2011 Mar 1.
Despite recent advances revealing genetic factors influencing caries susceptibility, questions regarding the model of inheritance involved are yet to be addressed. We conducted a Complex Segregation Analysis on decayed teeth in a sample of homogenous, isolated families recruited from the Brazilian Amazon. A dominant, major gene effect controlling resistance to phenotype was detected. The frequency of the resistance allele "A" was 0.63; mean numbers of decayed teeth were 1.53 and 9.53 for genotypes AA/AB and BB, respectively. These results represent a step toward a description of the exact nature of the genetic risk factors controlling human susceptibility to caries.
尽管最近的研究进展揭示了影响龋齿易感性的遗传因素,但涉及的遗传模式仍有待解决。我们对从巴西亚马逊招募的同质、孤立家庭样本中的龋齿进行了复杂分离分析。检测到控制表型抗性的显性主基因效应。抗性等位基因“A”的频率为 0.63;基因型 AA/AB 和 BB 的平均龋齿数分别为 1.53 和 9.53。这些结果是朝着描述控制人类龋齿易感性的遗传风险因素的确切性质迈出的一步。