gip, rat

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。

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。

High affinity rat GIP receptor partial agonist (Kd = 13 nM). Increases cAMP accumulation in COS-7 cells transfected with rat GIP receptor, while also acting as a competitive antagonist of GIP.

This GIP fragment has potent insulinotropic activity in the isolated, perfused rat pancreas but greatly reduced somatostatinotropic activity in the isolated perfused rat stomach. The site responsible for insulinotropic activity apparently lies between residues 19 and 30 of GIP.

Endogenous truncated form of the incretin hormone GIP. More potent at stimulating glucose-dependent insulin secretion from rat pancreatic β-cells than GIP.