Researchers slow neurodegeneration in mice by barring T cells from the brain

Get your daily dose of health and medicine every weekday with STAT’s free newsletter Morning Rounds. Sign up here. Good morning! To start, a postscript on Anthropic’s biological breakthrough. Last week, the AI company said Claude had discovered a new enzyme system with a series of repeats in DNA “reminiscent of CRISPR.” It turns out University of Copenhagen professor Mario Rodríguez Mestre has been studying the same set of enzymes, using Anthropic’s AI to write code and draft manuscripts as he p...