Studies on the circadian rhythm of phosphoenolpyruvate carboxykinase activity in rats. I. Mechanism of circadian increase in liver enzyme with special reference to hormonal and dietary effects.

Adrenal Glands/physiology Adrenalectomy Animals Carboxy-Lyases/metabolism Circadian Rhythm/drug effects Cycloheximide/pharmacology Dactinomycin/pharmacology Diet Enzyme Activation Female Glucose/pharmacology Hormones/pharmacology Insulin/pharmacology Liver/enzymology Male Phosphoenolpyruvate Carboxykinase (GTP)/metabolism Rats Seasons Thyroid Gland/physiology Thyroidectomy

Hormones Insulin Dactinomycin Cycloheximide Carboxy-Lyases Phosphoenolpyruvate Carboxykinase (GTP) Glucose