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Suazo J, Salamanca C, González-Hormazábal P, Cáceres-Rojas G, Pantoja R, Leiva N, Pardo R. PEMT variants are associated with nonsyndromic cleft lip with or without cleft palate in Chile. Epigenomics 2022; 14:987-993. [PMID: 36154674 DOI: 10.2217/epi-2022-0180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To assess the association between PEMT variants and nonsyndromic cleft lip with or without cleft palate in Chile and the effects of these variants on global DNA methylation. Subjects & methods: The authors obtained genotypes for nine variants from 247 cases and 453 controls for genotype-phenotype associations. The effect of significant polymorphisms on global DNA methylation (percentage of long interspersed element-1 methylation) was evaluated in a subsample of 95 controls. Results: After multiple comparison corrections, variants rs7649 and rs4646409 were associated with nonsyndromic cleft lip with or without cleft palate. Carriers of risk alleles presented lower DNA methylation levels than noncarriers. Conclusion: According to functional analysis for risk variants from previous reports, the authors infer that a decrease of methyl group availability is occurring in affected subjects.
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Affiliation(s)
- José Suazo
- Institute for Research in Dental Sciences, School of Dentistry, Universidad de Chile, Santiago, Chile
| | - Carlos Salamanca
- Institute for Research in Dental Sciences, School of Dentistry, Universidad de Chile, Santiago, Chile.,Research Center in Dental Sciences (CICO), Dental School, Universidad de La Frontera, Temuco, Chile.,Universidad Adventista de Chile, Chillán, Chile
| | - Patricio González-Hormazábal
- Human Genetics Program, Institute of Biomedical Sciences, School of Medicine, Universidad de Chile, Santiago, Chile
| | - Gabriela Cáceres-Rojas
- Institute for Research in Dental Sciences, School of Dentistry, Universidad de Chile, Santiago, Chile
| | - Roberto Pantoja
- Unit of Oral & Maxillofacial Surgery, Hospital Clínico San Borja-Arriaran, Santiago, Chile.,Department of Oral & Maxillofacial Surgery, School of Dentistry, Universidad de Chile, Santiago, Chile
| | - Noemi Leiva
- Unit of Maxillofacial Malformations, School of Dentistry, Universidad de Chile, Santiago, Chile
| | - Rosa Pardo
- Section of Genetics, Hospital Clínico Universidad de Chile, Santiago, Chile.,Unit of Neonatology, Hospital Clínico Universidad de Chile, Santiago, Chile
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