Abstract
Summary
Mortality of rats from parabiosis intoxication in non-littermate pairs was 64%, signs of intoxication followed by recovery were shown by 28% and 8% remained asymptomatic. Treatment of non-littermate pairs with an antihistaminic or cortisone had no effect on the incidence or severity of the intoxication. Littermate pairs showed less tendency toward intoxication, but those which were affected died as readily as non-litter-mates.
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