245 recruiting studies matching your filters
Two hallmarks of both healthy aging and age-related disease are 1) memory and navigational deficits, particularly in orienting towards goal locations and plann…
The purpose of this investigation is to develop improved magnetic resonance imaging (MRI) techniques and hardware for studying brain function. MRI is a diagnos…
There are over one million Veterans who identify as lesbian, gay, bisexual, (LGB) or a related identity. Older LGB Veterans face unique hurdles as they age, in…
The goal of this clinical trial is to learn if Quercefit® or Ubiqsome™ can improve markers of healthy aging, blood sugar control, and heart health in older adu…
The purpose of this study is to test whether young-donor fecal microbiome transplantation (FMT) and a fermented, plant-rich high-fiber, microbiome rejuvenating…
To study the safety and possible side effects of using the imaging agent 4-\[18F\]Fluoro-1-Naphthol (also called \[18F\]4FN) in PET/CT scans for participants w…
Loss of control eating in children and adolescents is associated with a host of negative physical and psychological health outcomes and a prognostic marker for…
Brain blood flow will be measured during a simulated postural change test and while breathing increased levels of carbon dioxide using magnetic resonance imagi…
A growing body of research has highlighted the importance of frontal regions, at both the functional and structural levels, in age-related declines in attentio…
This study will examine the relationship of airways resistance measured by oscillometry with ventilation defects measured by Phase Resolved Functional Lung (PR…
The purpose of this study is to examine hypoxic vasodilation and the role of beta-adrenergic receptors in younger premenopausal, perimenopausal, and older post…
To determine if vascular beta3 adrenergic receptors are present and functional in aging women and can be targeted to attenuate sympathetic vasoconstriction and…