Figure 4From: The role of interleukin-12 in the heavy metal-elicited immunomodulation: relevance of various evaluation methods Serum cytokine levels as evaluated by cytometric bead array (CBA). Representative plots show serum cytokine levels of control mice injected every other day for 3 weeks with isotonic saline solution (A) and following 3-week (B) or 5-week (C) exposure to cadmium acetate. Animals were sacrificed and blood samples were collected by heart puncture. Following separation of sera, cytokine content was evaluated by CBA as described in Materials and Methods.Back to article page