| 摘要 |
UROTENSIN PEPTIDES Maggy UI (Urotensin I) or flathead sole urotensin, obtained from Hippoglossides Elassodon has the formula: . Analogs have been synthesized that are at least as potent as Maggy UI, and Maggy UI or such an analog or a biologically active fragment of either or pharmaceutically acceptable salts of any of the foregoing, dispersed in a pharmaceutically acceptable liquid or solid carrier, can be administered to mammals to achieve a substantial elevation of ACTH, .beta.-endorphin, .beta.-lipotropin and corticosterone levels and/or an increase in intestinal blood flow and/or a lowering of systemic blood pressure and/or a changing of regional blood distribution over an extended period of time. In the analogs, one or more of the first three N-terminal residues is deleted and is optionally substituted by a peptide fragment up to 5 amino acids long, and/or an acylating agent containing up to 7 carbon atoms is optionally added at the N-terminus. |
