Prostaglandin D2

**Definition:** The principal cyclooxygenase metabolite of arachidonic acid. It is released upon activation of mast cells and is also synthesized by alveolar macrophages. Among its many biological actions, the most important are its bronchoconstrictor, platelet-activating-factor-inhibitory, and cytotoxic effects.

**Tree numbers:** - D10.251.355.255.550.200.200 - D23.469.050.175.725.200.200

**Synonyms:** - 11-Dehydroprostaglandin F2alpha - 11-Dehydroprostaglandin F2 alpha - PGD2