in some areas , high densities of ang ir nerve terminals and ang ii receptors ( e.g . paraventricular hypothalamic nucleus , locus coeruleus and nucleus tractus solitarius ) or high densities of ang ii receptors alone ( e.g . medial geniculate body , subthalamic nucleus and superficial layer of the superior collicle ) were often associated with high levels of angiotensinogen mrna , suggesting the existence of an extracellular formation of ang ii , mediating biological responses .
C0003018
ang
C0003017
angiotensinogen