Scientists scan brains to see if PKU drug repairs damage

This study looked at whether Palynziq, a medication that lowers phenylalanine levels in people with PKU, leads to improvements in brain health and thinking skills. Researchers used brain scans and cognitive tests to measure changes in 6 adults with PKU who had been successfully treated with Palynziq for at least 3 months. The goal was to understand how reducing this harmful amino acid affects the brain's structure, function, and a person's ability to think clearly.