Physiological and molecular biochemical mechanisms of bile formation

Figure 8 ³¹P-NMR spectroscopy hepatic (left part of figure) and gallbladder (right part of figure) bile. Signals: 12,31 (standard); inorganic phosphate (P_i); phosphatidilcholine (PCh). PCh signal of gallbladder bile is increased with respect to such signals from hepatic bile. Signal of standard and inorganic phosphate of gallbladder bile are decreased with respect to such signals of hepatic bile. The concentration of lipids is increased by water absorption by gallbladder mucosa.