New tool identifies proteins that control gene activity
Peer-Reviewed Publication
Updates every hour. Last Updated: 23-Nov-2025 18:11 ET (23-Nov-2025 23:11 GMT/UTC)
A new tool greatly improves scientists’ ability to identify and study proteins that regulate gene activity in cells, according to research led by Weill Cornell Medicine investigators. The technology should enable and enhance investigations in both fundamental biology and disease research.
Some of the first animals on Earth were likely ancestors of the modern sea sponge, according to MIT geochemists who unearthed new evidence in very old rocks.
Monitoring amyloid plaques in animal models is essential for testing Alzheimer’s therapies, but most methods rely on post-mortem analysis. Researchers from the University of Strathclyde and the Italian Institute of Technology have developed a fiber photometry technique that tracks amyloid plaque signals in the brains of freely moving Alzheimer’s model mice. By combining a plaque-binding fluorescent dye with flat and tapered optical fibers, the team demonstrated that in vivo fluorescence signals correlate with post-mortem histology and can distinguish diseased from healthy animals. The tapered fiber approach enabled depth-resolved monitoring across brain regions during natural behavior, offering a minimally invasive way to study disease progression and therapeutic effects in real time.