When you apply the brakes, brake fluid is forced under pressure into the wheel cylinder, which in turn pushes the brake shoes into contact with the machined surface on the inside of the drum. When the pressure is released, return springs pull the shoes back to their rest position.
Normally, protein is not removed when the kidneys filter waste from the blood. However, when the kidneys are damaged, protein leaks through the damaged filters and is removed from the body in the urine, along with the waste products.
There are some problems which are common in all types of kidney disease with protein in the urine:-. 1  High blood pressure - Kidney disease commonly causes high blood pressure. This increases the risk of further kidney disease, and also the risk of heart attack and stroke.