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Sanchez-Dominguez CN, Reyes-Lopez MA, Bustamante A, Cerda-Flores RM, Villalobos-Torres MDC, Gallardo-Blanco HL, Rojas-Martinez A, Martinez-Rodriguez HG, Barrera-Saldaña HA, Ortiz-Lopez R. The tumor necrosis factor α (-308 A/G) polymorphism is associated with cystic fibrosis in Mexican patients. PLoS One 2014; 9:e90945. [PMID: 24603877 PMCID: PMC3946307 DOI: 10.1371/journal.pone.0090945] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 02/05/2014] [Indexed: 11/18/2022] Open
Abstract
UNLABELLED Environmental and genetic factors may modify or contribute to the phenotypic differences observed in multigenic and monogenic diseases, such as cystic fibrosis (CF). An analysis of modifier genes can be helpful for estimating patient prognosis and directing preventive care. The aim of this study is to determine the association between seven genetic variants of four modifier genes and CF by comparing their corresponding allelic and genotypic frequencies in CF patients (n = 81) and control subjects (n = 104). Genetic variants of MBL2 exon 1 (A, B, C and D), the IL-8 promoter (-251 A/T), the TNFα promoter (TNF1/TNF2), and SERPINA1 (PI*Z and PI*S) were tested in CF patients and control subjects from northeastern Mexico by PCR-RFLP. RESULTS The TNF2 allele (P = 0.012, OR 3.43, 95% CI 1.25-9.38) was significantly associated with CF under the dominant and additive models but was not associated with CF under the recessive model. This association remained statistically significant after adjusting for multiple tests using the Bonferroni correction (P = 0.0482). The other tested variants and genotypes did not show any association with the disease. CONCLUSION An analysis of seven genetic variants of four modifier genes showed that one variant, the TNF2 allele, appears to be significantly associated with CF in Mexican patients.
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Affiliation(s)
- Celia N. Sanchez-Dominguez
- Departamento de Bioquimica y Medicina Molecular, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | - Miguel A. Reyes-Lopez
- Laboratorio de Medicina de Conservacion, Centro de Biotecnologia Genomica, Instituto Politecnico Nacional, Reynosa, Tamaulipas, Mexico
| | - Adriana Bustamante
- Clinica de Fibrosis Quistica, Centro de Prevencion y Rehabilitacion de Enfermedades Pulmonares Cronicas (CEPREP), Facultad de Medicina y Hospital Universitario “Dr. Jose Eleuterio Gonzalez”, Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | | | - Maria del C. Villalobos-Torres
- Departamento de Bioquimica y Medicina Molecular, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | - Hugo L. Gallardo-Blanco
- Departamento de Genetica, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | - Augusto Rojas-Martinez
- Departamento de Bioquimica y Medicina Molecular, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
- Centro de Investigacion y Desarrollo en Ciencias de la Salud, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | - Herminia G. Martinez-Rodriguez
- Departamento de Bioquimica y Medicina Molecular, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | - Hugo A. Barrera-Saldaña
- Departamento de Bioquimica y Medicina Molecular, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
| | - Rocio Ortiz-Lopez
- Departamento de Bioquimica y Medicina Molecular, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
- Centro de Investigacion y Desarrollo en Ciencias de la Salud, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico
- * E-mail:
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