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生长抑素是一种环状多肽 ,最初是由下丘脑中分离出来的 ,因能抑制垂体释放生长激素而得名 ,广泛分布于胃肠道及中枢神经系统 ,在胃肠道由Ｄ细胞产生和分泌。生长抑制有二种活性形式 ,即 14肽生长抑素 (ＳＳ -14 )和 2 8肽生长抑素 (ＳＳ-2 8) ,二种形式不仅结构相似 ,其生物学?
Somatostatin is a cyclic peptide originally isolated from the hypothalamus because it inhibits the release of growth hormone from the pituitary gland to name it widely distributed in the gastrointestinal tract and the central nervous system and is produced by D cells in the gastrointestinal tract And secretion. There are two active forms of growth inhibition, namely 14-peptide somatostatin (SS -14) and 28 peptide somatostatin (SS-28). The two forms are not only structurally similar, their biology?