Phenobarbital regulates nuclear expression of HNF‐4α in mouse and rat hepatocytes independent of CAR and PXR
Aaron W. Bell, George K. Michalopoulos – 23 June 2006 – Phenobarbital is a lipophilic molecule used as a sedative and antiepileptic drug that elicits a multitude of effects in the liver, including gross liver enlargement, hepatocyte hypertrophy, and induced expression of drug‐metabolizing enzymes and other liver‐specific genes. The constitutive androstane receptor (CAR; NR1I3) and to a lesser extent the pregnane X receptor (PXR; NR1I2) are responsible for mediating induction of many phenobarbital‐responsive genes.