Corticosterone -- an anxiogenic or an anxiolytic agent?

J Pharm Pharmacol, 1979/5;31(5):300-5.

File SE, Vellucci SV, Wendlandt S

PMID: 37299

Impact factor: 4.81

Abstract
Corticosterone (3--12 mg kg-1, i.p., giving rise to plasma corticosterone concentrations from 26.7 to 89.0 micrograms/100 ml) failed to have a significant anxiogenic action. Instead, corticosterone (3 mg kg-1) had a significant anxiolytic effect in the social interaction test of anxiety. Adrenalectomized rats had very low levels of social interaction; but adrenalectomized rats that had been given replacement corticosterone therapy did not differ from the sham-operated controls. Thus, corticosterone appears to have the opposite effect to that previously reported for ACTH. Possible mechanisms for the observed results are discussed.
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