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  • Title: Induction of locomotion in spinal tadpoles by excitatory amino acids and their agonists.
    Author: Harrison PH.
    Journal: J Exp Zool; 1990 Apr; 254(1):13-7. PubMed ID: 1971849.
    Abstract:
    Bath application of the excitatory amino acids L-aspartate and/or L-glutamate or their agonists N-methyl-D,L-aspartate and/or kainate elicited swimming movements in spinal tadpoles. Swimming cycles induced by the amino acids were in the frequency range of natural movements, and could be evoked after sectioning all dorsal roots in the exposed spinal segments. Locomotion was only elicited by L-aspartate or L-glutamate at low concentrations when the bath medium was rapidly circulated over the exposed surface of the spinal cord, and was of much shorter duration than the agonist-induced movements. These results indicate some differences between the actions of L-aspartate and L-glutamate and their agonists on the tadpole spinal cord.
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