[1] Univ Liverpool, Dept Med, Liverpool L69 3BX, Merseyside, England
[2] Univ Bari, Dept Med Biochem & Biol, I-70121 Bari, Italy
[3] Univ Salamanca, Dept Bioquim & Biol Mol, E-37008 Salamanca, Spain
[4] Royal Free & Univ Coll Med Sch, Dept Biochem & Mol Biol, London WC1E 6BT, England
[5] Univ Oslo, Inst Nutr Res, Oslo, Norway
[6] Inst Food Res, Norwich NR4 7UA, Norfolk, England
[7] Vrije Univ Amsterdam, Dept Med Pharmacol, Amsterdam, Netherlands
[8] Aston Univ, Pharmaceut Sci, Birmingham B4 7ET, W Midlands, England
[9] UCL, Natl Hosp, Dept Clin Biochem, London WC1E 6BT, England
[10] Roche Vitamins Europe Ltd, Basel, Switzerland
[11] CNR Bari, Ctr Study Mitochondria & Energy Metab, Bari, Italy
[12] Inst Physiol Chem I, Dusseldorf, Germany
[13] Univ Valencia, Fac Med, Dept Fisol, E-46003 Valencia, Spain