ABCB4 and diabetes mellitus: PPARα-related genes involved in cholesterol and phospholipid homeostasis such as the ATP-binding cassette transporters Abca1, Abcb4 and Abcd2 were upregulated approximately 1.5-fold, additionally we found a 1.7-fold upregulation of the PPARα marker genes Cyp4a10 and Cyp4a14 and acetyl-Coenzyme A acyltransferase (Acaa1b); all previously identified as being upregulated in models of diabetes.