المؤلفون: |
Jones LR; Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Rivadavia 1917 (C1083ACA), Buenos Aires, Argentina.; Laboratorio de Virología y Genética Molecular, Facultad de Ciencias Naturales sede Trelew, Universidad Nacional de la Patagonia San Juan Bosco, 9 de Julio y Begrano S/N (9100), Trelew, Chubut, Argentina., Sede M; Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Rivadavia 1917 (C1083ACA), Buenos Aires, Argentina.; Instituto de Investigaciones Biomédicas en Retrovirus y Sida (INBIRS), Facultad de Medicina, Universidad de Buenos Aires, Paraguay 2155-Piso 11, C1121ABG, Buenos Aires, Argentina., Manrique JM; Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Rivadavia 1917 (C1083ACA), Buenos Aires, Argentina.; Laboratorio de Virología y Genética Molecular, Facultad de Ciencias Naturales sede Trelew, Universidad Nacional de la Patagonia San Juan Bosco, 9 de Julio y Begrano S/N (9100), Trelew, Chubut, Argentina., Quarleri J; Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Rivadavia 1917 (C1083ACA), Buenos Aires, Argentina. quarleri@fmed.uba.ar.; Instituto de Investigaciones Biomédicas en Retrovirus y Sida (INBIRS), Facultad de Medicina, Universidad de Buenos Aires, Paraguay 2155-Piso 11, C1121ABG, Buenos Aires, Argentina. quarleri@fmed.uba.ar. |
مستخلص: |
HBV phylogenetics and resistance-associated mutations (RAMs) were surveyed by next-generation sequencing of 21 longitudinal samples from seven patients entering antiviral therapy. The virus populations were dominated by a few abundant lineages that coexisted with substantial numbers of low-frequency variants. A few low-frequency RAMs were observed before treatment, but new ones emerged, and their frequencies increased during therapy. Together, these results support the idea that chronic HBV infection is dominated by a few virus lineages and that an accompanying plethora of diverse, low-frequency variants may function as a reservoir that potentially contribute to viral genetic plasticity, potentially affecting patient outcome. |