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C3GA rare kidney disease caused by overactivation of the complement system, a part of the immune system that helps protect against infections. This disease is characterized by dominant C3 deposits with minimal or no immunoglobulin deposits on staining.C3G (complement 3 glomerulopathy) and Primary IC-MPGN A rare kidney disease caused by overactivation of the complement system, a part of the immune system that helps protect against infections. This disease is characterized by dominant immunoglobulin deposits, or equal amounts of both immunoglobulin and C3 deposits on staining.primary IC-MPGN (immune complex membranoproliferative glomerulonephritis) are rare kidney diseases that can add challenges to the lives of children and adults. C3G and primary IC-MPGN are often misunderstood because they can look different from person to person. However, awareness and research are growing.

We are focused on connecting you to the right information and support to help you on your journey with C3G or primary IC-MPGN.

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