Lithium's NF-kB dependent upregulation of klotho in human cardiac fibroblasts, GLP-1 therapy's sarcopenia problem, and a new retrieval alignment framework for drug design share a single underlying problem: the molecular context the biology operates in determines whether any intervention reaches its intended target.
Muscle derived signals called myokines slow neurodegeneration, but only when the mitochondrial quality control machinery that senses cellular stress is intact. A new senescence paper, a snail scaffold synthesis, and a molecular vision model together reveal why the delivery problem is as hard as the biology.
