an enzyme that are right involved in the early development of Alzheimer's disease infection. Beta-secretase is a protease (an enzyme that catalyses the splitting of interior peptide bonds in a protein). Beta-secretase acts by cutting down a protein protruding from a brain cell. This little snip is believed become step one in the buildup of microscopic balls of dirt called amyloid being poisonous to brain cells. The mind cells (neurons) gradually die along with them gradually go the person's memory also emotional traits.