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  • Title: Modulation of histamine release by fatty acids. A new in vitro model investigating adverse drug reactions in various species.
    Author: Ennis M, Lorenz W.
    Journal: Ann Fr Anesth Reanim; 1985; 4(2):124-8. PubMed ID: 2408508.
    Abstract:
    Histamine release caused by drugs and/or their solvents is a well known phenomenon. In this study, both in vivo (anaesthetized and conscious dogs) and in vitro (isolated rat peritoneal, human and guinea-pig lung mast cells) models were used. Cremophor E1 and six derivatives of 12-hydroxystearic acid were compared for their histamine releasing abilities. Although the three types of isolated mast cells responded similarly, histamine release being observed with DH (the diester of 12-hydroxystearic acid with polyethylene glycol), TN (12-hydroxystearic acid polymerized with ethylene oxide) and ME (the monoester of 12-hydroxystearic acid esterified with polyethylene glycol), the anaesthetized dog exhibited elevated blood histamine levels and clinical symptoms after administration of all the solubilizing agents, except TN and ME. The reasons for this discrepancy are not known. The addition of the drugs (Althesin or propanidid) to their solubilizing agents caused histamine release, which was not observed with the solubilizing agent alone. This is the first demonstration of an in vitro model, which copies the clinical situation, i.e. solvent does nothing but the solvent plus drug combination causes histamine release and hence adverse reactions.
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