Histamine liberation and membrane fluidisation of mast cells exposed to the beta-adrenoceptor blocking drug propranolol |
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| Authors: | Dr. R. Nosál K. Ondriaš J. Pečivová K. Drábiková |
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| Affiliation: | (1) Institute of Experimental Pharmacology, Centre of Physiological Sciences, Slovak Academy of Sciences, Dúbravská 9, 842 16 Bratislava, Czechoslovakia |
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| Abstract: | Propranolol liberates histamine from isolated mast cells and decreases the uptake of extracellular histamine in a dose-dependent way. Histamine liberation due to propranolol is accompanied by calcium displacement from intracellular storage sites. The significant increase in membrane fluidity due to propranolol is temperature dependent. The perturbation of membranes is most probably the explanation of propranolol's interaction with isolated rat mast cells which results in altered histamine transportation. |
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