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  • Title: The effect of acute and repeated electroconvulsive treatment on plasma beta-endorphin, growth hormone, prolactin and cortisol secretion in depressed patients.
    Author: Weizman A, Gil-Ad I, Grupper D, Tyano S, Laron Z.
    Journal: Psychopharmacology (Berl); 1987; 93(1):122-6. PubMed ID: 2957720.
    Abstract:
    The effects of single and repeated electroconvulsive treatment (ECT) on beta-endorphin (beta-EP), cortisol, growth hormone (GH) and prolactin (Prl) plasma levels were investigated in nine depressed patients. Blood samples were monitored a day before ECT, the day of the first and sixth ECT (0, 30, 60 and 90 min after seizures), the day afterwards and 4 weeks after termination of the ECT course. A significant elevation of beta-EP levels was achieved immediately with and 24 h after the first and the sixth ECT. A transient increase in basal beta-EP was observed 1 day following the sixth ECT in comparison with pre-treatment level. Peak and 30 min levels of cortisol were increased compared with baseline by the first ECT. The former (peak) but not the latter (30 min) were increased also at the sixth treatment. GH levels were decreased the day after the first ECT in comparison with the pre-treatment levels and immediately following each ECT in comparison with baseline. A trend toward elevation of Prl was observed immediately after the first and sixth ECT, although the rise did not reach significant levels. ECT administration stimulated beta-EP and cortisol secretion and suppressed human GH release, possibly by activation of endorphinergic and/or serotonergic systems. These mechanisms might be involved in the beneficial effect of ECT in depression.
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