Substance use during pregnancy and postpartum among individuals with perinatally-acquired HIV in the United States.

Use of cannabis and alcohol were common during pregnancy and the first year postpartum among people with HIV in the United States (2007-2019), but there were no major differences in substance use during pregnancy based on mode of HIV acquisition. The relatively high prevalence of substance use in this population, particularly postpartum alcohol and cannabis use, warrants further attention.

Infectious Morbidity and All-cause Mortality of Infants HIV-exposed Uninfected Compared to Infants HIV-unexposed Uninfected in Botswana.

Some studies have reported increased infectious morbidity and all-cause mortality risk among infants HIV-exposed uninfected compared with infants HIV-unexposed uninfected. In a retrospective analysis of infants enrolled in the Botswana-based Tshilo Dikotla study, we found no difference in the prevalence of infectious hospitalizations or deaths from any cause in the first year of life by perinatal HIV exposure.

Subclinical Myocardial Fibrosis in South African Youth With HIV: Results From the CTAAC-Heart Study.

Background: Few data exist on myocardial fibrosis and inflammation in youth with HIV.

Methods: We performed cardiovascular magnetic resonance (CMR) on a cross section of South African youth: youth with perinatally acquired HIV (YPHIV) undergoing antiretroviral therapy (ART), youth with nonperinatally acquired HIV (YNPHIV) receiving ART, and youth without HIV. Quantile regression models were fit to assess the association between HIV status and CMR outcomes: subclinical fibrosis (late gadolinium enhancement [LGE] mass and fraction, native T1, extracellular volume) and inflammation (native T1, T2 mapping).

Repeated LPS induces training and tolerance of microglial responses across brain regions.

Background: Neuroinflammation is involved in the pathogenesis of almost every central nervous system disorder. As the brain's innate immune cells, microglia fine tune their activity to a dynamic brain environment. Previous studies have shown that repeated bouts of peripheral inflammation can trigger long-term changes in microglial gene expression and function, a form of innate immune memory.