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Effects of cromolyn on PCA reactions in vivo. Female rats (a) or male mice (b – d) injected i.d. with vehicle (saline) or anti-DNP IgE (IgE) were challenged i.v. with DNP-HSA with or without cromolyn (injected simultaneously); we then measured Evans blue extravasation (a and b), ear swelling (c) and leukocyte migration (d). N = 4 rats (a), 5 mice (b) and 7 – 8 mice (c and d) per group from at least 2 independent experiments. ** p < 0.01, * p < 0.05; n.s.: p > 0.05.
