|
1
|
Govil M, Mukhopadhyay N, Weeks DE, Feingold E, Shaffer JR, Levy SM, Vieira AR, Slayton RL, McNeil DW, Weyant RJ, Crout RJ, Marazita ML. Novel caries loci in children and adults implicated by genome-wide analysis of families. BMC Oral Health 2018; 18:98. [PMID: 29859070 PMCID: PMC5984765 DOI: 10.1186/s12903-018-0559-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 05/22/2018] [Indexed: 11/23/2022] Open
Abstract
Background Dental caries is a common chronic disease among children and adults alike, posing a substantial health burden. Caries is affected by multiple genetic and environmental factors, and prior studies have found that a substantial proportion of caries susceptibility is genetically inherited. Methods To identify such genetic factors, we conducted a genome-wide linkage scan in 464 extended families with 2616 individuals from Iowa, Pennsylvania and West Virginia for three dental caries phenotypes: (1) PRIM: dichotomized as zero versus one or more affected primary teeth, (2) QTOT1: age-adjusted quantitative caries measure for both primary and permanent dentitions including pre-cavitated lesions, and (3) QTOT2: age-adjusted quantitative caries excluding pre-cavitated lesions. Genotyping was conducted for approximately 600,000 SNPs on an Illumina platform, pruned to 127,511 uncorrelated SNPs for the analyses reported here. Results Multipoint non-parametric linkage analyses generated peak LOD scores exceeding 2.0 for eight genomic regions, but no LOD scores above 3.0 were observed. The maximum LOD score for each of the three traits was 2.90 at 1q25.3 for PRIM, 2.38 at 6q25.3 for QTOT1, and 2.76 at 5q23.3 for QTOT2. Some overlap in linkage regions was observed among the phenotypes. Genes with a potential role in dental caries in the eight chromosomal regions include CACNA1E, LAMC2, ALMS1, STAMBP, GXYLT2, SLC12A2, MEGF10, TMEM181, ARID1B, and, as well as genes in several immune gene families. Our results are also concordant with previous findings from association analyses on chromosomes 11 and 19. Conclusions These multipoint linkage results provide evidence in favor of novel chromosomal regions, while also supporting earlier association findings for these data. Understanding the genetic etiology of dental caries will allow designing personalized treatment plans based on an individual’s genetic risk of disease. Electronic supplementary material The online version of this article (10.1186/s12903-018-0559-6) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Manika Govil
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Suite 500 Bridgeside Point, 100 Technology Drive, Pittsburgh, PA, 15219, USA.
| | - Nandita Mukhopadhyay
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Suite 500 Bridgeside Point, 100 Technology Drive, Pittsburgh, PA, 15219, USA
| | - Daniel E Weeks
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Eleanor Feingold
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Suite 500 Bridgeside Point, 100 Technology Drive, Pittsburgh, PA, 15219, USA.,Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - John R Shaffer
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Suite 500 Bridgeside Point, 100 Technology Drive, Pittsburgh, PA, 15219, USA.,Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Steven M Levy
- Department of Preventive and Community Dentistry, University of Iowa College of Dentistry, Iowa City, IA, USA.,Department of Epidemiology, University of Iowa College of Public Health, Iowa City, IA, USA
| | - Alexandre R Vieira
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Suite 500 Bridgeside Point, 100 Technology Drive, Pittsburgh, PA, 15219, USA.,Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rebecca L Slayton
- Department of Pediatric Dentistry, School of Dentistry, University of Washington, Seattle, WA, USA
| | - Daniel W McNeil
- Dental Practice and Rural Health, West Virginia University School of Dentistry, Morgantown, WV, USA.,Department of Psychology, Eberly College of Arts and Sciences, West Virginia University, Morgantown, WV, USA
| | - Robert J Weyant
- Department of Dental Public Health and Information Management, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Richard J Crout
- Department of Periodontics, West Virginia University School of Dentistry, Morgantown, WV, USA
| | - Mary L Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Suite 500 Bridgeside Point, 100 Technology Drive, Pittsburgh, PA, 15219, USA.,Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA.,Clinical and Translational Science Institute, and Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| |
Collapse
|