The classical pathway is activated by C1q-mediated recognition of the target. Further activation of this pathway causes C4b and its cleavage product iC4b to accumulate in the tissues. C4b binds to C2 ...

The coronavirus disease-2019 (COVID-19) caused by the SARS-CoV-2 virus may vary from asymptomatic to severe infection with multi-organ failure and death. Increased levels of circulating complement ...

The complement system is assembled from a network of proteins that function to bring about the first line of defense of the body against invading pathogens. However, complement deficiencies or ...

Advances in understanding the pathophysiology of facioscapulohumeral dystrophy (FSHD) have led to several therapeutic approaches entering clinical trials and an increased need to develop biomarkers of ...

INTRODUCTION:Increased systemic inflammation plays a significant role in the development of adult cardiometabolic diseases such as insulin resistance, dyslipidemia, atherosclerosis, and hypertension.

Virus neutralization by early antisera usually requires or is enhanced by the presence of complement. The particular components of the complement system which are needed for neutralization of ...

Background Isotypes C4A and C4B of human complement component C4 are innate immunity factors. We found that gel electrophoresis of patient sera in the new diagnostic area of C4 complexes/aggregates ...

The levels of complement C3 and C4 components were determined in non-indigenous (creoles) and indigenous (Warao) populations, the latter with an extremely high tuberculosis (TB) rate. Serum samples ...

Breast milk provides infants with more than just nutrition; it also includes immune system components, some of them better studied than others. “We found the complement in mouse breast milk supports a ...