The complement system is a part of the immune system that enhances (complements) the ability of antibodies and phagocytic cells to clear microbes and damaged cells from an organism, promotes ...

Medically reviewed by Jamin Brahmbhatt, MD Key Takeaways Complement 3 glomerulopathy (C3G) is diagnosed with a combination of ...

Activation of the complement system through the alternative pathway is necessary for the development of anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) in animal models C5a has ...

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

The US Food and Drug Administration (FDA) has granted Fast Track Designation to Complement Therapeutics’ CTx001, the ...

From football fields to military training grounds, head injuries are leaving lasting marks on the brain in ways we're only ...

A complement C4 (also known as a complement component 4, or simply C4) is a test to measure the level of C4 proteins you have in your blood. These proteins play a role in how your immune system ...

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 ...

Changes to serum proteins could be behind the debilitating condition known as long COVID. The findings, published in the journal Science, could pave the way for diagnosing and treating the disease.

Scientists have identified a persistent change in a handful of blood proteins in people with long Covid that indicates that an important part of their immune system remains on high alert for months ...