Impaired feedback inhibition of oxysterol 7A-hydroxylase in mice with homozygous disruption of the sterol carrier protein 2 (SCP2) gene: Christian Muench, Division of Gastroenterology, Medical University of Luebecki, Luebeck Germany; Nadine Katzberg, Division of Gastroenterology, Medical University of Luebeck, Luebeck Germany; Udo Seedorf, Institute for Arteriosclerosis Research, University of Muenster, Muenster Germany; Juergen Scheibner, Eduard F Stange, Michael Fuchs, Division of Gastroenterology, Medical University of Luebeck, Luebeck Germany