Using hydrophilic ligand [3H]NMS and lipophilic ligand [3H]QNB, two stages of response of mAChR in CCL137 cells to the prolonged treatment with carbachol (GCh) have been demonstrated.

• 使用亲水性配基[~3H]NMS和亲脂性、膜通透性配基[~3H]QNB,证实氨甲酰胆碱(CCh)所致CCL137细胞中mAChR的减少,可分为两个不同的阶段。