https://www.sciencedaily.com/releases/2 ... 120626.htm
I quite liked these paragraphs that explained the concept at the end:
" He added: "So if you imagine the bricks in the walls of a room as the permanent part, the paint on the walls could be seen as the sacrificial part which needs to be replenished every so often.
"And just like you need to oil a car and keep its radiator topped up with water, these thin fibrils help maintain the body's matrix." "