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Characterization of NS5A and NS5B resistance-associated substitutions from genotype 1 Hepatitis C Virus infected patients in a Portuguese cohort

dc.contributor.authorBrandão, Ruben
dc.contributor.authorMarcelino, Rute
dc.contributor.authorGonçalves, Fátima
dc.contributor.authorDiogo, Isabel
dc.contributor.authorCarvalho, Ana
dc.contributor.authorCabanas, Joaquim
dc.contributor.authorCosta, Inês
dc.contributor.authorBrogueira, Pedro
dc.contributor.authorVentura, Fernando
dc.contributor.authorMiranda, Ana
dc.contributor.authorMansinho, Kamal
dc.contributor.authorGomes, Perpétua
dc.date.accessioned2019-12-20T16:14:10Z
dc.date.available2019-12-20T16:14:10Z
dc.date.issued2018-04
dc.descriptionThis is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.pt_PT
dc.description.abstractThis study is focused on the prevalent NS5 coding region resistance-associated substitutions (RASs) in DAA-naive genotype (GT)1 HCV-infected patients and their potential impact on success rates. Plasma RNA from 81 GT1 HCV-infected patients was extracted prior to an in-house nested RT-PCR of the NS5 coding region, which is followed by Sanger population sequencing. NS5A RASs were present in 28.4% (23/81) of all GT1-infected patients with 9.9% (8/81) having the Y93C/H mutation. NS5B RASs showed a prevalence of 14.8% (12/81) and were only detected in GT1b. Overall 38.3% (31/81) of all GT1 HCV-infected patients presented baseline RASs. The obtained data supports the usefulness of resistance testing prior to treatment since a statistically significant association was found between treatment failure and the baseline presence of specific NS5 RASs known as Y93C/H (p = 0.04).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBrandão, R.; Marcelino, R.; Gonçalves, F.; Diogo, I.; Carvalho, A.; Cabanas, J.; Costa, I.; Brogueira, P.; Ventura, F.; Miranda, A.; Mansinho, K.; Gomes, P. Characterization of NS5A and NS5B Resistance-Associated Substitutions from Genotype 1 Hepatitis C Virus Infected Patients in a Portuguese Cohort. Viruses 2018, 10, 223.pt_PT
dc.identifier.doi10.3390/v10050223pt_PT
dc.identifier.issn1999-4915
dc.identifier.urihttp://hdl.handle.net/10400.26/30657
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relation.publisherversionhttps://doi.org/10.3390/v10050223pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectHepatitis C viruspt_PT
dc.subjectDirect-acting antiviralspt_PT
dc.subjectResistance-associated substitutionspt_PT
dc.subjectNS5Apt_PT
dc.subjectNS5Bpt_PT
dc.titleCharacterization of NS5A and NS5B resistance-associated substitutions from genotype 1 Hepatitis C Virus infected patients in a Portuguese cohortpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPageE223pt_PT
oaire.citation.titleVirusespt_PT
oaire.citation.volume10(5)pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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