Failure of parathormone to affect insulin and glucagon release from the perfused rat pancreas.

Parathormone (0.15 U/ml) failed to affect the rate of glucagon and insulin release by the perfused rat pancreas exposed to glucose in either low (3.3 mM) or high (8.

Effects of oral contraceptive therapy on the circadian patterns of cortisol and thyrotropin (TSH).

The daily variation of serum cortisol and thyrotropin (TSH) has been simultaneously recorded every 30-min. in 4 women taking the same oral contraceptive containing oestrogens and progestogens and in 4 control women. The circadian rhythm of cortisol persisted under contraceptive therapy with about a 2.

Effects of glucocorticoids on pituitary hormonal responses to hypoglycemia. Inhibition of prolactin release.

The characteristics of pituitary hormonal responses to insulin-induced hypoglycemia were investigated in 16 normal men. In all subjects, levels of blood sugar fell below 35 mg/100 ml. A statistically significant increase in mean plasma levels of prolactin, ACTH, cortisol and growth hormone was observed.