Published online Oct 7, 2013. doi: 10.3748/wjg.v19.i37.6228
Revised: June 12, 2013
Accepted: July 4, 2013
Published online: October 7, 2013
Processing time: 182 Days and 7.6 Hours
Core tip: Bile contains various constituents including cholesterol and phospholipid, mainly phosphatidylcholine with a unique fatty acid composition of 1-palmitoyl 2-linoleyl (16:0-18:2) phosphatidylcholine and 1-palmitoyl 2-oleoyl (16:0-18:1). These biliary lipids are transported in vesicles from a specific intra-hepatic pool and an increase in biliary lipid-carrying vesicles may have implications for hepatic diseases such as gallstone formation. Taurohyodeoxycholic acid (THDC) stimulates the secretion of biliary phospholipids; hence THDC-infused rat livers were subjected to ultracentrifugation in order to isolate these phospholipid-carrying vesicles. The isolation of these biliary lipid-carrying vesicles was not successful; however, vesicles enriched in PDE activity were obtained.
