Review Article
The Role of Uridine Adenosine Tetraphosphate in the Vascular System
Figure 1
Up4A and vascular tone. Details are shown in the text. Up4A may directly or indirectly activate L-type channel. NO: nitric oxide; eNOS: endothelial nitric oxide synthase; EC: endothelial cell; SMC: smooth muscle cell; SR: sarcoplasmic reticulum; ERK: extracellular signal regulated kinase.