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Home / Archives for Vandamme AM

Vandamme AM

Development of a cross-European virtual sample repository and HIV resistance database.

  • Autores: Beheydt G, Fanti I, Imbrechts S, Incardona F, Kjaer J, Kristensen DK, Rickenbach M, Vandamme AM
  • Ano de Publicação: 2011
  • Journal: Antiviral Therapy
  • Link: https://apps.webofknowledge.com/full_record.do?product=UA&search_mode=GeneralSearch&qid=39&SID=2CbhBUDoSw8ZkFBEQLW&page=1&doc=1

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HIV-1 transmitted drug resistance in Latin America and the Caribbean: what do we know?

  • Autores: Bello DC, Gomez-Lopez A, Pineda-Peña AC, Sussmann O, Van Laethem K, Vandamme AM, Vercauteren J
  • Ano de Publicação: 2012
  • Journal: Aids Reviews
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/?term=HIV-1+Transmitted+Drug+Resistance+in+Latin+America+and+the+Caribbean%3A+What+Do+We+Know%3F

Latin America and the Caribbean countries have increased the scaling-up of antiretroviral treatment in the last years. The increase of transmitted drug resistance has been feared due to the worrisome indicators associated with the emergence of drug resistance and monitored by the World Health Organization (WHO).
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Superinfection with drug-resistant HIV is rare and does not contribute substantially to therapy failure in a large European cohort

  • Autores: Abecasis AB, Assel M, Bartha I, Luca AD, Müller V, Paredes R, Rosi A, Schülter E, Sloot PMA, Sönner-borg A, Svärd J, Torti C, van de Vijver DC, Van Laethem K, Vandamme AM, Zazzi M
  • Ano de Publicação: 2013
  • Journal: Bmc Infectious Diseases
  • Link: http://www.biomedcentral.com/1471-2334/13/537/

Superinfection with drug resistant HIV strains could potentially contribute to compromised therapy in patients initially infected with drug-sensitive virus and receiving antiretroviral therapy. To investigate the importance of this potential route to drug resistance, we developed a bioinformatics pipeline to detect superinfection from routinely collected genotyping data, and assessed whether superinfection contributed to increased drug resistance in a large European cohort of viremic, drug treated patients.
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Evaluation of the automatic editing tool RECall for HIV-1 pol and V3 loop sequences

  • Autores: Megens S, Schrooten Y, Van Laethem K, Vandamme AM, Vinken L
  • Ano de Publicação: 2013
  • Journal: Journal of Virological Methods
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/23748120

Genotypic drug resistance testing is routine practice in HIV-1 clinical care. The visual interpretation of sequencing electropherograms is labour-intensive and subject to intra- and inter-assay variability because decisions are based on operators’ judgments. In this study the performance of the automatic editing tool RECall was compared to the current standard of editing manually and editing using the tool ViroSeq.
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The demise of multidrug- resistant HIV-1: The national time trend in Portugal

  • Autores: Aguas MJ, Camacho RJ, Carvalho AP, Duque LM, Faria D, Faria T, Mansinho K, Peres S, Teófilo E, Theys K, Valadas E, Vandamme AM, Vera J, Vercauteren J
  • Ano de Publicação: 2013
  • Journal: Journal of Antimicrobial Chemotherapy
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/23228933

Despite a decreasing mortality and morbidity in treated HIV-1 patients, highly active antiretroviral treatment (HAART) can still fail due to the development of drug resistance. Especially, multidrug-resistant viruses pose a threat to efficient therapy. We studied the changing prevalence of multidrug resistance (MDR) over time in a cohort of HIV-1-infected patients in Portugal.
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Clinical Evaluation of Rega 8: An Updated Genotypic Interpretation System That Significantly Predicts HIV-Therapy Response

  • Autores: Beheydt G, Camacho R, Clotet B, De Luca A, Geretti AM, Grossman Z, Imbrechts S, Kaiser R, Libin P, Prosperi M, Schmit JC, Sönnerborg A, Torti C, Van Laethem K, Van Wijngaerden E, Vandamme AM, Vercauteren J, Zazzi M
  • Ano de Publicação: 2013
  • Journal: PLoS One
  • Link: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0061436

Clinically evaluating genotypic interpretation systems is essential to provide optimal guidance in designing potent individualized HIV-regimens. This study aimed at investigating the ability of the latest Rega algorithm to predict virological response on a short and longer period.
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Viral phylogeny in court: The unusual case of the Valencian anesthetist

  • Autores: Pybus OG, Vandamme AM
  • Ano de Publicação: 2013
  • Journal: BMC Biology
  • Link: http://www.biomedcentral.com/1741-7007/11/83

A large and complex outbreak of hepatitis C virus in Valencia, Spain that began 25 years ago led to the prosecution and conviction of an anesthetist who was accused of infecting hundreds of his patients. Evolutionary analyses of viral gene sequences were presented as evidence in the trial, and these are now described in detail by González-Candelas and colleagues in a paper published in BMC Biology. Their study illustrates the challenges and opportunities that arise from the use of phylogenetic inference in criminal trials concerning virus transmission.
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HIV-1 subtype is an independent predictor of reverse transcriptase mutation k65r in HIV-1 patients treated with combination antiretroviral therapy including tenofovir

  • Autores: Abecasis AB, Camacho RJ, Clotet B, De Luca A, Grossman Z, Schülter E, Snoeck J, Sönnerborg A, Struck D, Theys K, Torti C, Vandamme AM, Vercauteren J, Zazzi M
  • Ano de Publicação: 2013
  • Journal: Antimicrobial Agents and Chemotherapy
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/23183438

Subtype-dependent selection of HIV-1 reverse transcriptase resistance mutation K65R was previously observed in cell culture and small clinical investigations. We compared K65R prevalence across subtypes A, B, C, F, G, and CRF02_AG separately in a cohort of 3,076 patients on combination therapy including tenofovir. K65R selection was significantly higher in HIV-1 subtype C. This could not be explained by clinical and demographic factors in multivariate analysis, suggesting subtype sequence-specific K65R pathways.
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Decreasing population selection rates of resistance mutation K65R over time in HIV-1 patients receiving com- bination therapy including tenofovir

  • Autores: Abecasis AB, Abreu R, Aguas MJ, Aldir I, Aleixo MJ, Amaro G, Antunes F, Borges F, Botas J, Branco T, Caixas U, Camacho RJ, Diniz A, Doroana M, Duque L, Faria D, Faria N, Faria T, Fonseca P, Germano I, Gomes F, Guerreiro C, Jesus MB, Mansinho K, Mineiro A, Miranda AC, Narciso J, Neves I, Nina J, Pinheiro S, Pinto IV, Proença P, Reis AP, Roxo F, Sá J, Santos C, Snoeck J, Tavares L, Teófilo E, Theys K, Valadas E, Vandamme AM, Ventura F, Vera J, Vercauteren J
  • Ano de Publicação: 2013
  • Journal: Journal of Antimicrobial Chemotherapy
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/23027713

The use of tenofovir is highly associated with the emergence of mutation K65R, which confers broad resistance to nucleoside/nucleotide analogue reverse transcriptase inhibitors (NRTIs), especially when tenofovir is combined with other NRTIs also selecting for K65R. Although recent HIV-1 treatment guidelines discouraging these combinations resulted in reduced K65R selection with tenofovir, updated information on the impact of currently recommended regimens on the population selection rate of K65R is presently lacking.
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HIV-1 drug resistance: Where do polymorphisms fit in?

  • Autores: Abecasis AB, Theys K, Vandamme AM
  • Ano de Publicação: 2013
  • Journal: Future Microbiology
  • Link: http://www.ncbi.nlm.nih.gov/pubmed/23464368

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