| 摘要 |
Compounds of the formula: <IMAGE> wherein: X is H, Ala-Gly, Gly-Gly-Gly, Ala-D-Ala, acetyl, or benzoyl; X1 is Arg or His; X2 is Glu or Asp; X3 is Trp or D-Trp; or 6-F-D-Trp; and X4 is Cys- or D-Cys; or a non-toxic pharmaceutically acceptable acid addition salt thereof; inhibit the secretion of growth hormone and glucagon without materially affecting the secretion of insulin.
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