Taurochenodeoxycholic acid sodium (Sodium taurochenodeoxycholate) is one of the main bioactive substances of animals' bile acid. Taurochenodeoxycholic acid sodium induces apoptosis and shows obvious anti-inflammatory and immune regulation properties. It can increase glucose-induced insulin secretion and stimulate the electrical activity of α2-cells and enhance cytosolic Ca(2+) concentration ([Ca(2+)](c)).

通过使用来自野生型、法尼醇X受体(FXR)敲除(KO)和β细胞ATP依赖性K(+) (K(ATP))通道基因SUR1 (ABCC8) KO小鼠的岛细胞进行实验。Taurochenodeoxycholic acid sodium(TCDC)增加了葡萄糖诱导的胰岛素分泌。这一效应被FXR激动剂GW4064模拟，并被FXR拮抗剂朱砂悬钩子抑制。TCDC和GW4064刺激了β细胞的电活动并增强了细胞质Ca(2+)浓度([Ca(2+)](c))。这些效应被朱砂悬钩子减弱。与TCDC相比，对FXR亲和力较低的钠熊去氧胆酸对[Ca(2+)](c)和胰岛素分泌无影响。通过TCDC激活FXR被认为是通过抑制K(ATP)电流。TCDC对K(ATP)通道活动的下降仅在具有完整代谢的β细胞中观察到，并可被朱砂悬钩子逆转。在SUR1-KO或FXR-KO小鼠的岛细胞中，TCDC不改变胰岛素分泌。TCDC也不改变岛细胞凋亡。