pancreatic polypeptide, rat

Pancreatic Polypeptide, rat, is an agonist of the NPY receptor with high affinity at NPYR4. Pancreatic polypeptide (PP) is a 36-amino acid, C-terminally amidated peptide, and a member of the PP-fold peptide family, produced and secreted by the PP cells.

Pancreatic Polypeptide, rat acetate 是 NPY 受体的激动剂，对 NPYR4 具有高亲和力。

Gastrin-releasing peptide (GRP) is a neuropeptide that stimulates gastrin release. It binds to (Ki = 300 nM) and stimulates amylase secretion in rat pancreatic AR42J cells (EC50 = 0.3 nM). GRP increases proliferation of human liver carcinoma HepG2 and MHCC97H cells but does not affect the proliferation of normal HL-7702 liver cells at a concentration of 1 nM. In vivo, GRP (0.35 nmol/kg/h) increases both pancreatic exocrine secretion and pancreatic polypeptide (PP) release in rats. It dose-dependently stimulates gastrin, pancreatic amylase, lipase, bilirubin, and acid output and induces gallbladder contraction in humans when administered at doses ranging from 1 to 27 pmol/kg per hour.

GIP, rat TFA 是一种源自大鼠的生物活性肽。GIP（Glucose-dependent Insulinotropic Polypeptide，又名 Gastric Inhibitory Polypeptide）是由十二指肠与空肠中的K细胞在摄食后释放的一种含42个氨基酸的多肽。作为肠促胰岛素激素肽家族的一部分，GIP和GLP（Glucagon-Like Peptide）共同调控胰岛β细胞的胰岛素分泌，并可能促进β细胞扩增及存活。此外，近期研究显示GIP参与调节脂质平衡，并可能在肥胖的病理生理中扮演角色。

GIP, rat 是一种由十二指肠和空肠 K 细胞在食物摄入后分泌的具有生物活性的肽，由 42 个氨基酸组成。作为肠促胰岛素激素肽家族的一员，GIP 与另一激素 GLP 共同负责刺激胰岛 β 细胞分泌胰岛素，并促进 β 细胞的增殖与存活。近期研究显示GIP 在调控脂质平衡及肥胖发病机制中发挥重要作用。