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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, Bianca

Introduction: 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, Bianca

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 determinants in MSM new...


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, Carmo

Introduction: 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...


The unseen ingredients: a systematic review of the prevalence of microplastics ...

Mota, Carolina; Martins, Zita E.; Ramos, Helena; M. P. L. V. O. Ferreira , Isabel; Carvalho, Márcia; Araújo, Ana Margarida

Background: Plastics have revolutionized every aspect of modern life [1, 2], offering convenience but also bringing forth environmental and health hazards. Their exponential production and improper disposal have led to the global burden of microplastics (MPs) and nanoplastics (NPs) in the environment [3, 4]. These tiny particles possess the alarming ability to infiltrate the food chain, thereby posing a potenti...

Date: 2024   |   Origin: Scientific Letters

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, Carmo

Introduction 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...


A Shared Perspective on in Vitro and in Vivo Models to Assay Intestinal Transep...

Hevia, Arancha; Ruas-Madiedo, Patricia; Faria, Miguel Angelo; Petit, Valérie; Alves, Bruna; Alvito, Paula; Arranz, Elena; Bastiaan-Net, Shanna

Assessing nutrient bioavailability is complex, as the process involves multiple digestion steps, several cellular environments, and regulatory-metabolic mechanisms. Several in vitro models of different physiological relevance are used to study nutrient absorption, providing significant challenges in data evaluation. However, such in vitro models are needed for mechanistic studies as well as to screen for biolog...


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, Carmo

Objective: 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...


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, Carmo

Objective: 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...


A selective p53 activator and anticancer agent to improve colorectal cancer the...

Ramos, Helena; Soares, Maria I. L.; Silva, Joana; Raimundo, Liliana; Calheiros, Juliana; Gomes, Célia; Reis, Flávio; Monteiro, Filipe A.; Nunes, Cláudia

Impairment of the p53 pathway is a critical event in cancer. Therefore, reestablishing p53 activity has become one of the most appealing anticancer therapeutic strategies. Here, we disclose the p53-activating anticancer drug (3S)-6,7-bis(hydroxymethyl)-5-methyl-3-phenyl-1H,3H-pyrrolo[1,2-c]thiazole (MANIO). MANIO demonstrates a notable selectivity to the p53 pathway, activating wild-type (WT)p53 and restoring W...


A selective p53 activator and anticancer agent to improve colorectal cancer the...

Ramos, Helena; Soares, Maria I. L.; Silva, Joana; Raimundo, Liliana; Calheiros, Juliana; Gomes, Célia; Reis, Flávio; Monteiro, Filipe A; Nunes, Cláudia

Impairment of the p53 pathway is a critical event in cancer. Therefore, reestablishing p53 activity has become one of the most appealing anticancer therapeutic strategies. Here, we disclose the p53-activating anticancer drug (3S)-6,7-bis(hydroxymethyl)-5-methyl-3-phenyl-1H,3H-pyrrolo[1,2-c]thiazole (MANIO). MANIO demonstrates a notable selectivity to the p53 pathway, activating wild-type (WT)p53 and restoring W...


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