[Characteristics of growth hormone secretion in the hyperprolactinemia syndrome]

A low basal level of growth hormone (GH) was determined by radioimmunoassay in studying GH basal content, the circadian rhythm and the response to glucose load in patients with hyperprolactinemia. In subjects with hypophyseal adenoma, an anomalous GH response to glucose load and the disturbance of its circadian rhythm are seen. In patients not suffering from hypophyseal adenoma, the circadian curve of GH content is similar to the normal one on a lower level. A pronounced GH response to glucose load is absent in these patients.