Seven-day old rats were subjected to unilateral ligation of the common carotid artery followed by 2-h exposure to a gas mixture consisting of 8% oxygen and 92% nitrogen. Locomotor function of rats was monitored weekly. Functional deficit in these animals persisted for at least 3 months. The exercise tests of rotarod, hanging, and narrowing track were most informative. Our results can be used in preclinical studies of new drugs for the therapy of perinatal brain injury.
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