Epidermal growth factor stimulates growth hormone secretion from superfused rat adenohypophyseal fragments

Epidermal growth factor (EGF) stimulated GH secretion from superfused rat adenohypophyseal fragments in a dose-related manner (8-50 ng/ml). Secretion of PRL or TSH was not affected by EGF at concentrations up to 50 ng/ml. These results indicate that EGF may be a specific secretagogue for GH in rats.