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Platelet activating-factor (PAF) production was measured in tryptase (20 ng/ml)-stimulated HSAEC at 10 and 30 min with or without pretreatment with BEL (2 μM, 10 min). Results represent means ± SE of 4 independent experiments. *P < 0.05 compared with unstimulated cells, +P < 0.05 compared with tryptase-stimulated cells.
