Latent class and time-to-event analyses of social determinants of health and COVID-19 vaccine uptake among Black women living with HIV.

Existing inequities are exacerbated during the COVID-19 pandemic. Similar to HIV, COVID-19 disproportionately affects Black and other communities of color. Among Black women living with HIV (BWLWH) this study examined the relationship between community level and individual level social determinants of health and time to COVID-19 vaccine uptake.

DTI versus NODDI White Matter Microstructural Biomarkers of Alzheimer's Disease.

Diffusion MRI (dMRI) is a powerful tool to assess white matter (WM) microstructural abnormalities in Alzheimer's disease (AD). The fourth phase of the Alzheimer's Disease Neuroimaging Initiative (ADNI) now includes multiple multishell dMRI protocols, enabling both traditional and advanced dMRI model analyses. There is a need to evaluate whether multishell data offer deeper insights into WM pathology in AD than more widely available single-shell data by overcoming single-shell model limitations.

Comparative Ungulate Diversity and Biomass Change With Human Use and Drought: Implications for Community Stability and Protected Area Prioritization in African Savannas.

Drought and human use may alter ungulate diversity and biomass in contrasting ways. In African savannas, resource-dependent grazers such as wildebeest () and zebra () may decline or disperse as resources decline, opening space for more drought-tolerant species such as gazelles ( and ) and impala (). This shift can increase species richness, evenness, and overall ungulate diversity.

Cytisine Use Vs Nicotine Replacement Therapy in Relapsed Smokers with Heart Disease: Feasibility Results from a Pilot Randomized Trial.

Background: Cytisine use has proven efficacy for smoking cessation. We plan to investigate whether cytisine use is effective for relapse recovery and conducted a pilot randomized trial to assess the feasibility of a definitive trial.

Methods: A 2-group, single-site pilot randomized controlled trial was conducted.

White Matter Tract Vulnerability to Amyloid Pathology on the Alzheimer's Disease Continuum.

Alzheimer's disease (AD) is marked by progressive cognitive decline and memory loss, due to the abnormal accumulation of amyloid-beta () plaques, followed by tau pathology, and a gradually spreading pattern of neuronal loss. Understanding how amyloid positivity affects the brain's neural pathways is critical for understanding how the brain changes with AD pathology. Tractometry offers a powerful approach for the , 3D quantitative assessment of white matter tracts, enabling the localization of microstructural abnormalities in diseased populations and those at risk.