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| Queiroz,Artur Acelino Francisco L.N.; Sousa,Alvaro Francisco Lopes de; Brignol,Sandra; Araújo,Telma Maria Evangelista; Reis,Renata K.. |
| ABSTRACT Introduction: The elderly population is increasingly benefiting from recent technological advances. In this scenario, geolocation-based dating applications provide a viable alternative for finding partners in a practical and timely manner, but may be accompanied by certain risk behaviors for HIV infection. Although there are considerable number of users over 50 on these applications, no studies have addressed this problem. The aim of the present study was to analyze factors of vulnerability to HIV/Aids among the population of men who have sex with men (MSM) age 50 years or older who use dating apps. Methods: This was a cross-sectional, population-survey-based, analytical study, conducted exclusively online with a sample of 412 MSM. The data was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Men who have sex with men; HIV/Aids; Sexually transmitted infections; Mobile phone applications; Middle-aged men. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702019000500298 |
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| Arrym,Mauro Pedromonico; Alves,Paulo César Martins; Castelhano,Mariana Virginello; Mazzola,Taís Nitsch; Lemos,Renata Muller Banzato Pinto de; Zaccariotto,Tânia Regina; Levy,Carlos Emilio; Guimarães,Fernando; Silva,Marcos Tadeu Nolasco da. |
| ABSTRACT Background: HIV infection harms adaptive cellular immunity mechanisms. Long-term virological control by combined antiretroviral therapy (cART) reduces the risk of mycobacterial infections. Thus, we aimed to study cellular responses to mycobacterial antigens in 20 HIV-infected adolescents with at least one year of virological control (HIV-RNA <40 copies/mL) and 20 healthy adolescents. Methods: We evaluated CD8 and γδ T-cell degranulation by measurement of CD107a membrane expression after stimulation with lysates from BCG (10 µg/mL) and H37RA Mycobacterium tuberculosis (Mtb, 10 µg/mL). Immune activation and antigen-presenting ability were also assessed by determination of HLA-DR, CD80, and CD86 markers. Results: TCR γδ T-cell CD107a expression... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HIV/Aids; BCG; Youth; Tuberculosis; Citotoxicity; Immunologic. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702019000300151 |
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