Okay kiddo, let me explain what beta-secretase 1 (BACE1) is in a way that you can understand.
Do you know what our brain is made of? It's made up of tiny cells called neurons, which help us think, feel and do everything that we do. These neurons need to communicate with each other to work properly, and they do that by sending tiny electrical signals through chemical messengers called neurotransmitters.
Now, in the brain there is a protein called amyloid precursor protein (APP) that helps make these neurotransmitters. But sometimes, APP gets broken down in a way that's not good for our brain. This is where BACE1 comes in.
BACE1 is an enzyme, which means it's like a tiny cutter that can snip At APP into smaller pieces. When BACE1 cuts APP, it creates a protein called beta-amyloid.
Now, here's where things get tricky. Too much beta-amyloid can clump together and form plaques in the brain. These plaques can start to damage neurons and affect how the brain works. This is bad news because it can cause memory problems, confusion, and even dementia.
Scientists are trying to figure out ways to stop BACE1 from making too much beta-amyloid. They hope that by doing this, they can prevent or treat brain diseases like Alzheimer's.
So in short, beta-secretase 1 is a protein that helps break down amyloid precursor protein in the brain, but too much of it can cause problems. Scientists are trying to find ways to stop it from making too much beta-amyloid.