title: The effect of coumarin and 7-hydroxycoumarin on in vitro macrophage phagocytosis of latex particles.
abstract: The influence of various concentrations of coumarin (C) and 7-Hydroxycoumarin (7HC) upon in vitro macrophage phagocytosis of latex particles was investigated. A C dose of 20 micrograms/ml was indicated to have the greatest stimulating effect of all doses used with a percent effect of 25.6. A C dose of 80 micrograms/ml showed no apparent activity. C doses of 40, 10 and 1 microgram/ml had only a slight positive effect on phagocytosis compared to the control. 7HC concentrations of 80, 40, 20, 10 and 1 microgram/ml did not show any influence on the phagocytotic activity compared to the control. These preliminary data indicate a direct effect of C on macrophage function as has been suggested and refutes the hypothesis that 7HC is the pharmacologically active agent in reduction of high protein edemas.
mesh_terms: D000818:Animals; D003374:Coumarins / Q000494:pharmacology*; D066298:In Vitro Techniques; D007840:Latex; D008264:Macrophages / Q000187:drug effects*; D051379:Mice; D010587:Phagocytosis / Q000187:drug effects*; D014468:Umbelliferones / Q000494:pharmacology*
chemical_list: D003374:Coumarins; D007840:Latex; D014468:Umbelliferones; C031477:7-hydroxycoumarin; C030123:coumarin