Abstract
Summary
The susceptibility of the chick embryo to endotoxin is confirmed. Embryos tolerate up to 20 μg of Isoproterenol when injected intravenously. Isoproterenol in amounts of only 0.1 μg significantly protect embryos against 0.05 μg of endotoxin, which is greater than an LD50 dose. The mechanism of the protective action of Isoproterenol is not known.
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