A, images of representative rat venules from three groups of studies. B, results summary showing that transfusion of diabetic plasma into a normal rat caused increased microvessel permeability (top graph) and leukocyte adhesion (lower graph) in the recipient rat (middle image, N = 6), and no significant changes occurred with transfusion of plasma from a normal donor rat (left image, N = 4). Removal of MPs from diabetic plasma abolished its effect on leukocyte adhesion and slightly attenuated the increased permeability (right image, N = 5). *
P < 0.05; **
P ≤ 0.001; NS, P > 0.1.