Maastricht University Medical Center

This study tests whether a natural supplement made from aronia berries can improve attention, memory, and eye health in healthy young adults. Researchers will give the supplement to 44 volunteers aged 18-35 and measure changes in cognitive performance and eye fatigue. The goal is…

This study looks at 3500 people who had their mitral heart valve replaced to see if the original valve problem (narrowing vs. leaking) affects how long the new valve lasts. Researchers will review medical records from routine follow-ups over several years. The goal is to better u…

This study looks at how getting older affects people with rheumatoid arthritis (RA) compared to those without it. Researchers will track disease activity, thinking skills, and physical abilities in 840 adults aged 55-85. The goal is to create age-specific reference charts to help…