| Journal: | Annals of hepatology |
| Database: | PERIÓDICA |
| System number: | 000409343 |
| ISSN: | 1665-2681 |
| Authors: | González Aldaco, Karina1 Panduro, Arturo1 Rebello-Pinho, Joao R2 Martínez López, Erika1 Gleyzer, Ketti2 Fierro, Nora A1 Román, Sonia1 |
| Institutions: | 1Hospital Civil de Guadalajara Fray Antonio Alcalde, Departamento de Biología Molecular en Medicina, Guadalajara, Jalisco. México 2Hospital Israelita Albert Einstein, Sao Paulo. Brasil |
| Year: | 2017 |
| Season: | Mar-Abr |
| Volumen: | 16 |
| Number: | 2 |
| Pages: | 221-229 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | The prevalence of two functional polymorphisms (rs1127354 and rs7270101) of the inosine triphosphatase (ITPA) gene associated with ribavirin-induced hemolytic anemia (RIHA) during antiviral therapy for hepatitis C virus (HCV) infection varies by ethnicity. In Mexico, the distribution of these polymorphisms among Native Amerindians (NA) and admixed population (Mestizos) is unknown. This study aimed to determine the prevalence of the ITPA polymorphisms among healthy NA and Mestizos, as well as in HCV patients from West Mexico. Material and methods. Material and methods. In Material and methods. a cross-sectional study, 600 unrelated subjects (322 Mestizos, 100 NA, and 178 treatment-naïve, HCV-infected Mestizos patients) were enrolled. A medical history was registered. ITPA genotype was determined by Real-Time PCR. Fst-values and genetic relatedness between study and reference populations were assessed. Results. The frequency of the risk genotypes rs1127354CC and rs7270101AA was higher among NA (98-100%) than in Mestizos (87-92.9%), (p < 0.05). The NA presented the highest prevalence of the rs1127354CC genotype reported worldwide. The Fst-values revealed a genetic relatedness among Mexican NA, South Americans and African populations (p > 0.05). The frequency of the predicted risk for RIHA was higher among NA (98%) than in Mestizos (80.5%) and HCV-infected patients (81.5%) (p < 0 .01). The CC/AA alleles were associated with lower values of total bilirubin, aspartate/alanine aminotransferases, and aspartate-to-platelet-ratio-index score among HCV-patients. Conclusion. Conclusion. A Conclusion. high prevalence of the ITPA polymorphisms associated with RIHA was found in Mexican NA. These polymorphisms could be a useful tool for evaluating potential adverse effects and the risk or benefit of antiviral therapy in Mexicans and other admixed populations |
| Disciplines: | Medicina |
| Keyword: | Farmacología, Gastroenterología, Genética, Hepatitis C, Terapia antiviral, Efectos adversos, Polimorfismo, Mestizos, México, Amerindios |
| Keyword: | Medicine, Gastroenterology, Pharmacology, Genetics, Antiviral therapy, Hepatitis C, Adverse effects, Polymorphism, Mestizos, Mexico, Amerindians |
| Full text: | Texto completo (Ver PDF) |
