CD46, a regulator of complement activity, promotes T cell activation and differentiation towards a regulatory Tr1 phenotype.
Complement component C3 is an important constituent of the complement system, of which activation and deposition indicate complement activity.
Reconstitution of complement activation with rFicolin-3 allowed full restoration of complement activity.
IVIgG and IgGAM administration significantly reduced systemic complement activity and cerebral C5a and C5a receptor expression.
The complement activity increased 1.6-fold under stress conditions regardless of the diet (p < 0.0001).
Complement activity is low among newborns compared to that of adults [50].
Radioimmunoassay and ELISA were employed to assess the extent of complement activity.
A cross-sectional study was designed to evaluate complement activity at parturition.
The increase in complement activity under heat stress conditions is an unexpected result: generally stress brings about a decrease in complement activity (Boshra et al. 2006; Holland and Lambris 2002).
Complement activity increases with stress while lysozyme activity decreases, but to a lesser extent in supplemented fish.
To assess the effects of IVIg treatment on systemic complement activity and to validate the complement activity inhibiting effect of IVIg, serum total complement activity (CH50), C3, and soluble C5b-9 levels were measured by ELISA kits (Neoscientific, Cambridge, MA, USA), as per the manufacturer's instructions.
