21 documents found, page 1 of 3
Distribution of CCR5-Delta32, CCR2-64I, and SDF1-3’A host genetic factors in HI...
Sebastião, Cruz S.; Pimentel, Victor; Jandondo, Domingos; Sebastião, Joana M. K.; Sacomboio, Euclides; Pingarilho, Marta; Brito, MiguelBackground: The HIV/AIDS pandemic remains a public health concern. Studies on host genetic polymorphisms that confer resistance to HIV-1 infection or delay HIV disease progression are scarce in African countries. Herein, we investigate the proportion of the mutated phenotype of the AIDS-related polymorphisms CCR5-Delta32, CCR2-64I, and SDF1-3'A in HIV-infected and uninfected individuals in Luanda, the capital o...
Determinants of HIV-1 Transmission Clusters and Transmitted Drug Resistance in ...
Abrantes, Ricardo; Pimentel, Victor; Sebastião, Cruz; Miranda, Mafalda N S; Seabra, Sofia; Silva, Ana Rita; Diniz, António; Ascenção, BiancaIntroduction: In the EU/EEA, men who have sex with men (MSM) is a priority group for the prevention and control of HIV-1 infection. In Portugal, the 2023 HIV incidence rate was 8.2 per 100,000 inhabitants, with 876 new infections, 41.7% in MSM. We aim to characterize HIV-1 transmission clusters (TC) and transmitted drug resistance (TDR) and its sociodemographic, behavioral, clinical, and viral genomic determina...
Determinants of HIV-1 transmission clusters and transmitted drug resistance in ...
Abrantes, Ricardo; Pimentel, Victor; Sebastião, Cruz; Miranda, Mafalda N. S.; Seabra, Sofia; Silva, Ana Rita; Diniz, António; Ascenção, BiancaIn the EU/EEA, men who have sex with men (MSM) is a priority group for the prevention and control of HIV-1 infection. In Portugal, the 2023 HIV incidence rate was 8.2 per 100,000 inhabitants, with 876 new infections, 41.7% in MSM. We aim to characterize HIV-1 transmission clusters (TC) and transmitted drug resistance (TDR) and its sociodemographic, behavioral, clinical, and viral genomic determinants in MSM new...
Epidemiological, behavioural and molecular profile of individuals newly diagnos...
da Veiga Leal, Silvânia; de Pina Araújo, Isabel Inês; Pimentel, Victor; Parreira, Ricardo; Gonçalves, Paloma; Pingarilho, Marta; Taveira, NunoIntroduction: The diagnosis of HIV with Transmitted Drug Resistance Mutations (TDR) limits therapeutic options and consequently complicates the management of HIV-1 cases. Objective: The aim of this study was to describe the molecular epidemiological profile and TDR in individuals newly diagnosed with HIV-1 from 2018 to 2020. Materials and methods: The HIV-1 pol gene was amplified and sequenced using the Sanger ...
Sociodemographic, Clinical, and Behavioral Factors Associated with Sexual Trans...
Miranda, Mafalda N. S.; Pimentel, Victor; Graça, Jacqueline; Seabra, Sofia G.; Sebastião, Cruz S.; Diniz, António; Faria, Domitília; Teófilo, EugénioIntroduction: Sexually transmitted infections (STIs) continue to occur at high levels. According to the WHO, each year there are an estimated 374 million new infections with syphilis, gonorrhea, chlamydia, and trichomoniasis. STIs are associated with an increased risk of acquiring HIV infection. Migrants are reportedly highly affected by STIs. Objectives: This study aims to characterize factors associated with ...
Determinants of HIV late presentation among men who have sex with men in Portug...
Abrantes, Ricardo; Pimentel, Victor; Miranda, Mafalda N. S.; Silva, Ana Rita; Diniz, António; Ascenção, Bianca; Piñeiro, Carmela; Koch, CarmoIntroduction: HIV late presentation (LP) remains excessive in Europe. We aimed to analyze the factors associated with late presentation in the MSM population newly diagnosed with HIV in Portugal between 2014 and 2019. Methods: We included 391 newly HIV-1 diagnosed Men who have Sex with Men (MSM), from the BESTHOPE project, in 17 countrywide Portuguese hospitals. The data included clinical and socio-behavioral q...
HIV-1 diversity and pre-treatment drug resistance in the era of integrase inhib...
Sebastião, Cruz S.; Abecasis, Ana B.; Jandondo, Domingos; Sebastião, Joana M.; Vigário, João; Comandante, Felícia; Pingarilho, Marta; Pocongo, BárbaraThe surveillance of drug resistance in the HIV-1 naïve population remains critical to optimizing the effectiveness of antiretroviral therapy (ART), mainly in the era of integrase strand transfer inhibitor (INSTI) regimens. Currently, there is no data regarding resistance to INSTI in Angola since Dolutegravir-DTG was included in the first-line ART regimen. Herein, we investigated the HIV-1 genetic diversity and ...
Determinants of HIV late presentation among men who have sex with men in Portug...
Abrantes, Ricardo; Pimentel, Victor; Miranda, Mafalda N. S.; Silva, Ana Rita; Diniz, António; Ascenção, Bianca; Piñeiro, Carmela; Koch, CarmoIntroduction HIV late presentation (LP) remains excessive in Europe. We aimed to analyze the factors associated with late presentation in the MSM population newly diagnosed with HIV in Portugal between 2014 and 2019.Methods We included 391 newly HIV-1 diagnosed Men who have Sex with Men (MSM), from the BESTHOPE project, in 17 countrywide Portuguese hospitals. The data included clinical and socio-behavioral ques...
Sociodemographic, clinical, and behavioral factors associated with sexual trans...
Miranda, Mafalda N. S.; Pimentel, Victor; Graça, Jacqueline; Seabra, Sofia G.; Sebastião, Cruz S.; Diniz, António; Faria, Domitília; Teófilo, EugénioIntroduction: Sexually transmitted infections (STIs) continue to occur at high levels. According to the WHO, each year there are an estimated 374 million new infections with syphilis, gonorrhea, chlamydia, and trichomoniasis. STIs are associated with an increased risk of acquiring HIV infection. Migrants are reportedly highly affected by STIs. Objectives: This study aims to characterize factors associated with ...
HIV-1-Transmitted Drug Resistance and Transmission Clusters in Newly Diagnosed ...
Pingarilho, Marta; Pimentel, Victor; Miranda, Mafalda N. S.; Silva, Ana Rita; Diniz, António; Ascenção, Bianca Branco; Piñeiro, Carmela; Koch, CarmoObjective: To describe and analyze transmitted drug resistance (TDR) between 2014 and 2019 in newly infected patients with HIV-1 in Portugal and to characterize its transmission networks. Methods: Clinical, socioepidemiological, and risk behavior data were collected from 820 newly diagnosed patients in Portugal between September 2014 and December 2019. The sequences obtained from drug resistance testing were us...