Changes in Enterohepatic Circulation after Duodenal-Jejunal Bypass and Reabsorption of Bile Acids in the Bilio-Pancreatic Limb.

Shortening of the "enterohepatic circulation" by early reabsorption of BAs in the BP-limb, not by the early influx of bile juice into the ileum, was the main cause of BA elevation after DJB. Thus, glycemic improvement and elevation of BA concentration after DJB depend on the BP-limb length.