Mutaciones de la región precore,promotor basal del core y polimerasa viral en pacientes con hepatitis B crónica |
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Authors: | Ainhoa Gutiérrez Isabel Viciana Francisca Rius Alfonso Pinedo |
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Institution: | 1. Servicio de Microbiología, Hospital Virgen de la Victoria, Málaga, España;2. Unidad Docente de Bioestadística, Departamento de Medicina Preventiva y Salud Pública e Historia de la Ciencia, Facultad de Medicina, Universidad de Málaga, Málaga, España |
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Abstract: | BackgroundVariations of C gene give rise to precore and basal core mutations, which influence HBeAg expression The antiviral treatment failure is due to the presence of variations in the gene P, which cause mutations in the viral polymerase.MethodsWe performed genotyping of HBV P gene by sequencing, and gene C in patients with chronic hepatitis B over a period of five years.ResultsA total of 75 % of the patients had some mutation in precore or in basal core promoter regions, and 37 % demonstrated resistance mutations to antiviral treatment. The most frequent genotypes were A and D.ConclusionsThe presence of mutations in core/precore regions in patients with chronic hepatitis has led to tighter control of these patients. Detecting for resistance should be done as quickly as possible before there is an increase in viral load. |
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Keywords: | Virus hepatitis B Genotipos Mutaciones precore/core |
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