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Somatostatin/Cortistatin family Members of this family are hormones. Somatostatin inhibits the release of somatotropin. Cortistatin is a peptide that is related to the Somatostatins that is found to depresses neuronal electrical activity but, unlike somatostatin, induces low-frequency waves in the cerebral cortex and antagonizes the effects of acetylcholine on hippocampal and cortical measures of excitability.
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