Phospholipids modify substrate binding and enzyme activity of human cytochrome P450 27A1

by Dilyara A. Murtazina, Ulla Andersson, In-Su Hahn, Ingemar Bjorkhem, G.A.S. Ansari, Irina A. Pikuleva
Published 2004-12-01

Oxysterols in the circulation of patients with the Smith-Lemli-Opitz syndrome: abnormal levels of 24S- and 27-hydroxycholesterol

by Ingemar Björkhem, Lena Starck, Ulla Andersson, Dieter Lütjohann, Sara von Bahr, Irina Pikuleva, Amir Babiker, Ulf Diczfalusy
Published 2001-03-01

7α-hydroxy-3-oxo-4-cholestenoic acid in cerebrospinal fluid reflects the integrity of the blood-brain barrier

by Ahmed Saeed, Federico Floris, Ulla Andersson, Irina Pikuleva, Anita Lövgren-Sandblom, Maria Bjerke, Martin Paucar, Anders Wallin, Per Svenningsson, Ingemar Björkhem
Published 2014-02-01

Novel route for elimination of brain oxysterols across the blood-brain barrier: conversion into 7α-hydroxy-3-oxo-4-cholestenoic acid

by Steve Meaney, Maura Heverin, Ute Panzenboeck, Lena Ekström, Magnus Axelsson, Ulla Andersson, Ulf Diczfalusy, Irina Pikuleva, John Wahren, Wolfgang Sattler, Ingemar Björkhem
Published 2007-04-01