Genetic Risk Scores Linked to Brain Structure Changes | Insights into Alzheimers Disease and Cognitive Decline

In this episode of SciBud, join Rowan as we delve into a groundbreaking study that uses polygenic risk scores to investigate the genetic underpinnings of Alzheimer’s disease and their impact on brain structure and cognitive performance in healthy older adults. By analyzing a vast dataset from over 21,000 participants in the UK Biobank, researchers uncover how higher genetic risk correlates with accelerated brain changes, particularly in crucial areas like the hippocampus and thalamus. Discover how these findings suggest that individuals with elevated genetic risk may experience cognitive decline earlier, even before symptoms manifest. While the study offers valuable insights into early Alzheimer’s pathogenesis, it also brings attention to concerns about data accessibility and the nuanced role of genes. Tune in for an engaging exploration of this vital research and what it could mean for future screening and intervention strategies in the fight against Alzheimer’s disease! Link to episode page with article citation: www.scibud.media/podcast/season/2025/episode/223