Your complement system consists of a group of important proteins in your bloodstream. These proteins help your immune system fight off harmful invaders, such as bacteria, and other foreign substances.

A man who had been born in 1967 was essentially healthy until 1980, when he received a diagnosis of ulcerative colitis. The condition was successfully treated with topical prednisolone. In 1996 ...

There is a growing body of evidence implicating complement and, in particular, the terminal pathway (membrane attack complex; MAC) in inducing demyelination in multiple sclerosis and experimental ...