Association between use of sodium-glucose co-transporter-2 inhibitor and the risk of incident dementia: a population-based cohort study.

Objectives: To assess the association between sodium-glucose co-transporter-2 inhibitor (SGLT-2i) use and the risk of incident dementia compared with dipeptidyl peptidase-4 inhibitors (DPP-4i) use among individuals with type 2 diabetes.

Design: A population-based retrospective cohort study.

Setting: The Clinical Practice Research Datalink (CPRD) Aurum database from the UK.

Penalized G-estimation for effect modifier selection in a structural nested mean model for repeated outcomes.

Effect modification occurs when the impact of the treatment on an outcome varies based on the levels of other covariates known as effect modifiers. Modeling these effect differences is important for etiological goals and for purposes of optimizing treatment. Structural nested mean models (SNMMs) are useful causal models for estimating the potentially heterogeneous effect of a time-varying exposure on the mean of an outcome in the presence of time-varying confounding.

Impact of the COVID-19 pandemic on primary care for hypertension in the UK: a population-based cohort study.

Objectives: To describe the impact of the COVID-19 pandemic on hypertension diagnosis and management in UK primary care.

Design: Population-based cohort study.

Setting: Over 2000 general practices across the UK contributing to the Clinical Practice Research Datalink.

Molecular dissection of laboratory contamination between two schistosome populations.

Background: Genomic analysis has revealed extensive contamination among laboratory-maintained microbes including malaria parasites, Mycobacterium tuberculosis, and Salmonella spp. Here, we provide direct evidence for recent contamination of a laboratory schistosome parasite population, and we investigate its genomic consequences. The Brazilian Schistosoma mansoni population SmBRE has several distinctive phenotypes, showing poor infectivity, reduced sporocyst number, low levels of cercarial shedding and low virulence in the intermediate snail host, and low worm burden and low fecundity in the vertebrate rodent host.