[Effect of diphenylhydantoin administered during gestation and lactation on the motor development and cerebellar histology of the young rat].
Didier Desor, R Royer, Patrick Netter, Guedenet Jc, Gilbert Charles Faure, Bertrand Krafft, Georges Grignon
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Abstract
Rattus norvegicus females were treated by diphenylhydantoin (D.P.H.), all along pregnancy and lactation. 4 groups were constituted: a 100 mg DPH/kg/day group, a 50 mg DPH/kg/day group; a placebo group (treated with pure water), and control group. D.P.H. was given twice a day by a gastric tube. The cerebellar Purkinje cells studied through light microscopy and transmission electron microscopy in young rats (25 days old) showed no visible alteration. 2 motorcoordination tests were applied to the young rats, during their 2nd and 3rd weeks of post-natal life. Young rats of DPH 100, DPH 50 and placebo groups showed a backwardness relatively to control. This backwardness may be attributed to the maternal forced feeding stress, but not to a specific action of the DPH.