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 ...

Proteinuria (protein in urine) is common with complement 3 glomeropathy and is a strong predictor of disease progression and end-stage kidney failure.

Undertaking a study of proteins found in the complement system, an important part of the immune system, of patients with long COVID, researchers have identified a blood protein ‘signature’ that may ...

Medically reviewed by David Hampton, MD C3G is caused by immune system dysfunction that can lead to kidney issues.When the kidneys don't work as they should, people can experience blood or protein in ...

Global understanding of complement has shifted and developed since the 21st century: from our idea of a blood-based antibiotic system to a global regulator of immunity and tissue homeostasis. Recent ...

In a recent study posted to the bioRxiv* preprint server, researchers investigated the expression of complement regulatory proteins (CRPs) in coronavirus disease 2019 (COVID-19) to identify potential ...

Please provide your email address to receive an email when new articles are posted on . A protein known as granzyme K was recently shown to be a driver of inflammation by activating the complement ...

Current treatment methods for C3 glomerulopathy (C3G) help support kidney function and suppress immune system activity. Emerging therapies interrupt the proteins responsible for disease activity. C3G ...

We all forget things, and sometimes it would be better if we did not. Normal forgetting occurs more frequently as we age, but more serious, progressive, retrograde forgetting, which can have severe, ...