Please provide your email address to receive an email when new articles are posted on . Low complement levels prior to pregnancy are associated with an increased risk for adverse outcomes, including ...

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 ...

Complement activation contributes to platelet destruction in immune thrombocytopenia (ITP). However, there has been very little data describing serum complement levels in ITP patients, and no data ...

Levels of C4d and C4d/C4 associate with clinical and histopathological treatment response in proliferative lupus nephritis. Complement activation markers, particularly C4d and the C4d/C4 ratio, are ...