What are the postaglandins?

Prostaglandins are a group of lipid compounds that are derived from fatty acids and have important roles in various physiological processes. They act as signaling molecules and are involved in functions such as inflammation, pain modulation, regulation of blood flow, and the induction of labor. Prostaglandins are produced in almost all tissues and exert their effects locally, influencing the behavior of nearby cells. Their production can be stimulated by various stimuli, including injury or infection.