Fig. 2From: The assessment of xenogeneic bone immunotoxicity and risk management studyDetection of immunoglobin and complement in xenograft mice. Xenogeneic bone (bone 1) was implanted into Balb/c mice, the levels of IgG (a), IgM (b) and C3 (c) in the serum were measured by ELISAs on day 7, 14 and 28. The sham operation was used as control. Statistical significance was defined as **p < 0.01 and *p < 0.05 compared with controlBack to article page