Prostaglandins: members of a new hormonal system. These physiologically very potent compounds of ubiquitous occurrence are formed from essential fatty acids.

Adenine Nucleotides/metabolism Adipose Tissue/metabolism Adrenocorticotropic Hormone/pharmacology Animals Blood Pressure/drug effects Chemical Phenomena Chemistry Epinephrine/pharmacology Fatty Acids, Essential/metabolism Fatty Acids, Nonesterified/blood,metabolism Female Genitalia, Female/drug effects Glucagon/pharmacology Heart Rate/drug effects Humans In Vitro Techniques Lung/metabolism Norepinephrine/pharmacology Prostaglandins/biosynthesis,metabolism Semen/analysis

Adenine Nucleotides Fatty Acids, Essential Fatty Acids, Nonesterified Prostaglandins Adrenocorticotropic Hormone Glucagon Norepinephrine Epinephrine