Table 1.

Selectivity of somatostatin agonists at human somatostatin receptor types 1–5 and the rat somatostatin receptor type 4.

Compound	Mean (±SEM) Ki values (nM)
	H-SST1 receptor	H-SST2 receptor	H-SST3 receptor	H-SST4 receptor	H-SST5 receptor	R-SST4 receptor
Somatostatin 14	0.54 ± 0.02	2.14 ± 0.32	0.07 ± 0.01	0.28 ± 0.04	0.66 ± 0.04	0.38 ± 0.05
Somatostatin 28	0.14 ± 0.10	2.81 ± 0.04	0.06 ± 0.01	0.36 ± 0.09	0.52 ± 0.03	1.48 ± 1.39
Corticostatin 17	4.79 ± 1.12	33.88 ± 0.33	2.45 ± 0.10	2.51 ± 0.35	5.49 ± 0.64	0.91 ± 0.55
J-2156	588.8 ± 266	25, 118.9±4, 781.2	234.4 ± 112.5	0.56 ± 0.10	467.7 ± 155.9	0.89 ± 0.64
Octreotide	211.75 ± 7.55	4.90 ± 0.73	6.63 ± 0.32	84, 969.9±8, 098.88	20.86 ± 2.58	179.4 ± 44.5

H-SST1-5, human somatostatin receptor types 1-5; R-SST4, rat somatostatin receptor type 4. n = 3–6.