Abstract
PROSTAGLANDINS have a wide distribution in the vertebrate body and have been shown to be pharmacologically active on many types of vertebrate tissues. Evidence that these compounds have a neurohumoral role is suggested by several findings. Prostaglandins are widely distributed in the central nervous system1, and in the rat cerebral cortex they are localized in synaptic vesicles2. They are released from the feline cortex3 and possibly cerebellum and ventricles4,5. In addition, prostaglandins have effects on the central nervous system of cats and chickens6,7. We decided to investigate the effects of prostaglandins on the isolated toad spinal cord because the preparation is convenient for studying direct actions of drugs on a neuronal pool. Furthermore, prostaglandins are released from the frog spinal cord on stimulation of the hind limbs8, suggesting that they are involved in synaptic transmission in amphibians.
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PHILLIS, J., TEBĒCIS, A. Prostaglandins and Toad Spinal Cord Responses. Nature 217, 1076–1077 (1968). https://doi.org/10.1038/2171076a0
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DOI: https://doi.org/10.1038/2171076a0
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