PGB2（前列腺素B2）是来自膜磷脂的具有生物活性的脂质家族的一部分。它们由含有环戊烷环的C20-不饱和脂肪酸组成。PGB2是从成骨细胞释放的最丰富的前列腺素。抑制胰高血糖素刺激的肝细胞cAMP积累。PGB2（前列腺素B2）是TXA2R的激活剂。 PGB2 (Prostaglandin B2) is part of a family of biologically potent lipids from membrane phospholipids. They are comprised of a C20-unsaturated fatty acid containing a cyclopentane ring. PGB2 is the most abundant prostaglandin released from osteoblasts. Inhibits Glukagon-stimulated hepatocyte cAMP accumulation. PGB2 (Prostaglandin B2) is an activator of TXA2R.