Vibration Sensitivity Recovery after a Second Course of Acrylamide Intoxication. MAURISSEN. J. P. J., WEISS, B., AND COX, C. (1990). Fundam Appl. Toxicol 15, 93-98. Five monkeys were trained to report detection of vibration or an electrical stimulus. Three of them had been dosed previously with acrylamide administered orally until toxic signs appeared, and were then allowed to recover. Approximately 30 weeks after the end of the first dosing course, they were dosed a second time with 10 mg/kg/day of acrylamide, 5 days a week, to mimic the dosage regimen of the first dosing period. Two monkeys received vehicle, as in the first dosing period. Vibration sensitivity was reduced in the exposed monkeys to an extent comparable to the first dosing period. Analysis of covariance showed that the rate of recovery from a second exposure to acrylamide was comparable to the rate of recovery from the first exposure. Vibration sensitivity appears useful as a monitoring tool to follow the time course of acrylamide-induced peripheral nerve dysfunction.
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