human Rh proteins

Thousands of people with liver and kidney disease die every year from too much ammonia in their blood.......
a possible solution....
By targeting human Rh proteins, new treatments will help people with damaged livers and kidneys remove toxic ammonia from their bloodstream.
For people with kidney and liver damage, the need to remove naturally occurring ammonia from the bloodstream is critical. Brain cells are particularly susceptible to ammonia, and at low levels, ammonia toxicity can cause mild to severe confusion, drowsiness, or tremors. At high levels, ammonia toxicity leads to coma and eventually death. Rh blood proteins are most commonly recognized as being used to help define blood type. For instance, people who are type A, B, AB, or O positive have Rh blood proteins on the surface of their red blood cells. People who are type A, B, AB, or O negative do not have Rh proteins on the surface of their red blood cells.