Fig. 2From: Modulation of Nucleotide Triphosphate Diphosphohydrolase-1 (NTPDase-1)/cd39 in Xenograft RejectionNTPDase activities in wild-type cardiac xenografts (0–72 hr). (A) Concordant rejection model. ATPase activity (squares) and ADPase activity (diamonds) were measured using graft homogenates. Results are the mean ± SEM for three mice per point. Rejection times varied (58–65 hr). (B) Accommodation and long-term survival model. Squares show ATPase and diamonds show ADPase.Back to article page