complement system

(redirected from Complement proteins)

com·ple·ment sys·tem

a group of more than 20 serum proteins, some of which can be serially activated and participate in a cascade resulting in cell lysis; the complement system also functions in chemotaxis, opsonization, and phagocytosis.
References in periodicals archive ?
Plasma levels of complement proteins from the alternative pathway in patients with age-related macular degeneration are independent of Complement Factor H Tyr402His polymorphism.
Complement proteins and microglia are known to be active in late-stage Alzheimer's, when the inflamed brain is packed with sticky gobs of A-beta.
In the developing brain, microglia also help refine the brains circuitry by pruning back unneeded neural connections, which are marked for destruction with immune molecules called complement proteins.
coated) with complement proteins, weakening or rupturing (i.
Initial PE can aid by removing activated complement proteins and clearing potential anti-complement antibodies.
Based on findings that humans with OA have an excess of complement proteins in their joint fluid, researchers explored further.
Results from ex-vivo studies using plasma samples from patients with a type of AIHA, known as cold agglutinin disease (CAD), showed that red blood cells exposed to patient samples contained high levels of Complement proteins deposited on the cell surface.
Studies on the interactions between C-reactive protein and complement proteins," Immunology, vol.
Surviving in blood serum despite the presence of active complement proteins is well known as a virulence factor among isolates of Escherichia coli and other members of the Enterobacteriaceae.
The new method will acknowledge that proteins with high levels of EAA can complement proteins with lower levels of EAA, thus ensuring that dietary intake of EAA in mixed diets meets the requirements.
Wiirzner R, Orren A, Potter P, et al Functionally active complement proteins C6 and C7 detected in C6- and C7-deficient individuals.

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