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 ...

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 ...

A new study published in the journal Science Immunology analyzed lung epithelial cells from patients infected with COVID-19 and found the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ...

In this analysis of patients with myeloperoxidase-ANCA-positive AAV, all urinary complement C3 fragment levels were elevated significantly compared with healthy controls (P .01 for all). Specific ...

Nipocalimab might lower the concentration of anti-acetylcholine receptor antibodies in people with generalized myasthenia gravis, a study shows. PHOENIX, Arizona—Nipocalimab might lower the ...

C3G and IC-MPGN can be difficult to diagnose because they are so rare and their symptoms are vague and nonspecific. A kidney biopsy is considered the gold standard and usually needed to confirm the ...

THE use of the complement-fixation test in serologic investigation serves as a frequent reminder to the physician of the existence of the complement system. It is probable that despite the advances ...

Crippling the complement cascade in a mouse model of AD leads to more plaques, but less neurodegeneration and better function, according to a new study from Cynthia Lemere and colleagues at Brigham ...

Omeros’ Narsoplimab Stabilized Kidney Function and Reduced Urinary Complement Proteins in a Patient with IgA Vasculitis -- First Report of Narsoplimab’s Effects on Complement Activation Markers in ...

Traumatic brain injury (TBI) is a major cause of disability and a risk factor for early-onset dementia. The injury is characterized by a physical insult followed acutely by complement driven ...