To protect the fragile molecule as it sneaks into cells, they turned to a delivery technology with origins older than the idea of mRNA therapy itself: tiny balls of fat called lipid nanoparticles ...

Mice genetically engineered to lack the amino acid cysteine, and fed a cysteine-free diet, lost 30 percent of their body weight in a week.

Mitochondria play a central role in energy metabolism and overall health. In obesity and its comorbidities, mitochondrial ...