Abstract
To explore corticosteroid-catecholamine interactions in depression, plasma dopamine, norepinephrine, and epinephrine concentrations were studied both before and after dexamethasone in 16 patients during depression and after recovery, and in 28 healthy controls. Dexamethasone had a significant suppressive effect on plasma epinephrine levels in depressed patients and controls, while dopamine and norepinephrine levels were not significantly affected following dexamethasone administration. Levels of norepinephrine, epinephrine, and cortisol were positively correlated, while dopamine showed no correlation with cortisol values. These findings point to differentiated interrealations between certain catecholamines and glucocorticoids which possibly are affected during depressive illness.
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