Used in immunological research to quantitatively measure complement component C1q in rat samples, this ELISA kit helps assess activation of the classical complement pathway. It is commonly applied in studies related to autoimmune diseases, inflammation, and immune complex-mediated conditions in preclinical models. The assay enables researchers to monitor changes in C1q levels in serum, plasma, or tissue homogenates, supporting investigations into disease progression and therapeutic interventions targeting the complement system.