Figure 4.
Physiological and pathophysiological implications of endothelin-1 in circulation and on various cell types and adrenergic neurons. ECE: Endothelin converting ezyme; ET-1: Endothelin-1; NE: Norepinephrine; NO: Nitric oxide; PGI2: Prostacyclin (prostaglandin I2); VSMCs: Vascular smooth muscle cells.