The Farnesoid X receptor: a molecular link between bile acid and lipid and glucose metabolism.
A little dated (2005), but a great (and free) review on FXR by a well respected group at University Medical Center in the Netherlands. It is worth noting that FXR is known to negatively regulate human apo-AI expression in the liver.
https://www.ncbi.nlm.nih.gov/pubmed/16037564