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 ...

The complement proteins that circulate in our blood are an important part of our immune system. They help identify bacteria, viruses and other harmful organisms, making it easier for our white blood ...

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 ...

Left untreated, PNH could cause death in about half of patients within 10 years of diagnosis. The primary cause of PNH-related mortality is thromboembolic events. A host of anti-complement strategies, ...

ARO-C3 treatment led to deep and sustained reductions in alternative pathway complement activity and proteinuria. ARO-C3, an investigational RNA interference-based therapy targeting hepatic expression ...