Protein in blood may predict how seniors react to sedation

This completed early-phase study looked at 128 older adults (60+) having knee replacement surgery. Researchers measured a protein called neurofilament light chain in the blood and checked how sensitive patients were to the sedative remazolam. The goal was to see if higher protein levels—which can indicate nerve damage—relate to needing less sedation or having more side effects. The findings could help doctors personalize anesthesia for elderly patients, but the study is small and only explores a possible link, not a treatment.