Table 1. Autoradiographical analysis of [¹²⁵I]KP-14 binding densities in human and rat cardiovascular tissues.

	Tissue	[125I]KP-14 specific binding (amol mm−2)	n
Human	Left atria	59±16	3
	Right atria	36±7	3
	Left ventricle	34±8	3
	Right ventricle	31±7	3
	Interventricular septum	29±10	3
	Apex	27±6	4
	Atrial appendage	51±15	4
	Small resistance vessel	4±3	5
	Aorta	214±46	6
Rat	Heart	29±10	5
	Aorta	21±2	3

Data are expressed as mean ± SEM. n-Values are the number of individuals/animals from which tissue was obtained.