Journal
CELL BIOLOGY INTERNATIONAL
Volume 28, Issue 3, Pages 217-222Publisher
WILEY
DOI: 10.1016/j.cellbi.2003.12.002
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In previous experiments, treatment at weaning or adult age with endorphin, serotonin or an antihistamine (late hormonal imprinting) durably influenced the serotonin content of white blood cells and mast cells of rat. In the present experiments, five molecule (approved imprinters in other indexes) were studied for imprinting effect of immune cells, 3 weeks after a single treatment at weaning. Three steroid hormone-like molecule (vitamin D-3, mifepristone and dexamethasone) were ineffective (except dexamethasone in 1/4 indexes), while benzpyrene (aromatic hydrocarbon) and chlorpheniramine (H,-receptor blocker antihistamine) were highly effective (5/6 and 4/4 respectively). The results indicate: (1) a prolonged (late imprinting) effect of a single treatment with certain molecules acting at receptor level; (2) non-generality of late imprinting, and (3) the very extensive effects of benzpyrene, which in earlier experiments was one of the strongest imprinter at receptorial and behavioral level at any periods of life studied. (C) 2004 Elsevier Ltd. All rights reserved.
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