Non-adherence, discontinuation, and seroconversion among people on daily HIV pre-exposure prophylaxis (PrEP) in Brazil: a nationwide cohort study.

The goal of this study was to evaluate characteristics associated with Pre-exposure Prophylaxis for HIV infection (PrEP) non-adherence or discontinuation in Brazil and assess the association between these outcomes and HIV seroconversion. We used linked national dispensing and pathology data to identify people aged 14+ years initiating PrEP in 2018. We estimated non-adherence using the proportion of days covered (PDC), defining non-adherence as PDC < 60%.

Preclinical efficacy and safety of adeno-associated virus 5 alpha-galactosidase: A gene therapy for Fabry disease.

We developed a novel adeno-associated virus 5 gene therapy (AAV5-GLA) expressing human alpha-galactosidase A (GLA) under the control of a novel, small and strong, liver-restricted promoter. We assessed the preclinical potential of AAV5-GLA for treating Fabry disease, an X-linked hereditary metabolic disorder resulting from mutations in the gene encoding GLA that lead to accumulation of the substrates globotriaosylceramide and globotriaosylsphingosine, causing heart, kidney, and central nervous system dysfunction. Effects of intravenously administered AAV5-GLA were evaluated in (1) GLA-knockout mice aged 7-8 weeks (early in disease) and 20 weeks (nociception phenotype manifestation) and (2) cynomolgus macaques during an 8-week period.

Identifying COVID-19 variant through symptoms profile: Would it be possible? A rapid review.

The first outbreaks of coronavirus CoV, SARS-CoV and MERS-CoV have occurred in China and Saudi Arabia over the past decade, respectively. From the end of 2019, a great battle began by the world scientific community against SARS-CoV-2, the virus that caused COVID-19, a pathology that generated devastating consequences on all existing continents. Several mutations have already been detected in the structure of the virus, which have been responsible for the generation of many types of variants since the detection of the first COVID-19 virus identified in China.

Microplastics are detected in bull epididymal sperm and polystyrene microparticles impair sperm fertilization†.

An increase in global infertility has coincided with the accumulation of microplastics (MPs) in the environment. This trend is particularly troubling because only 10% of male infertility cases can be attributed to identifiable causes, leaving a knowledge gap in our understanding of their underlying factors. To bridge this, it is important to explore the connection between the accumulation of MPs and the observed decline in male fertility.