A series of studies indicated that the pituitary release of gh was regulated by two hypothalamically derived neurohormones ghrf , which stimulated secretion of gh , and somatostatin ( ss ) , which inhibated pituitary secretion of gh . so theoretically , ! 其一是生长激素释放因子( ghrf ) ，它刺激垂体生长激素的释放，其二是生长激素抑制因子( ss ) ，它抑制垂体生长激素的分泌。
2.
Somatostatin is a neurohormone which p1ay mu1tilatera1 physio1ogic function in vertebra animal body ( including human ) , to study ss genetic engineering vaccine is of great significance and have extensive appl ication potent ial 生长抑制因子( somatostatin ， ss )是脊椎动物(包括人)机体中具有多种生理功能的神经激素。研究ss基因工程疫苗既具有理论意义，又有广泛的应用前景。
