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.

It was called ‘complement’ because it aided the antibacterial activity of antibodies. However, it is now known that the complement system can be activated early in an infection without the presence of ...

We are studying the role of the complement system in kidneys and brains during health and disease. Traditionally, major complement proteins were shown to be generated by the liver and are functional ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 72, No. 6 (Jun., 1975), pp. 1989-1993 (5 pages) ...

Our immune system is armed with an array of defenses designed to detect and eliminate harmful threats. One of its most powerful defense mechanisms is the complement system-a group of proteins that ...

Complement component 3, often called C3, is an essential protein of the immune system. This protein plays a vital role in the body’s innate immune system, providing: the first line of defense against ...

Medical University of South Carolina scientists have uncovered a link between the innate immune system and cognitive problems ...

University of Pennsylvania researchers have found a promising new treatment for periodontitis using a component of the immune system called complement, according to a new study in the Journal of ...