C3dg Quantification by PEG Precipitation and or TRIFMA.

Detection of complement activation products can be carried out in a number of ways, and different methods are used in different laboratories. No international standard for measuring complement activation in the clinical setting has been agreed upon.Here we describe a modified assay for measuring C3dg. The assay is simple, inexpensive and stable. The estimation of C3dg directly reflects complement turnover independently of activation pathway.