The inhibition of liver ornithine decarboxylase expression in neonatal rats by maternal separation or CNS β-endorphin is independent of the pituitary

Previously we have shown, in rat pups, that either short-term maternal separation (MS) or central (but not peripheral) administration of β-endorphin (BE) markedly decrease basal levels of ornithine decarboxylase (ODC) activity throughout the body and suppresses liver ODC reponsiveness to injected gr...

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