[1] Univ Toulouse, Inst Natl Sante & Rech Med U1048, Inst Malad Metab & Cardiovasc, F-31432 Toulouse 4, France
[2] Univ Toulouse, Inst Natl Polytech, Ecole Natl Vet Toulouse, Inst Natl Sante & Rech Med,Unite Mixte Serv 006, F-31076 Toulouse, France
[3] Univ Angers, Inst Natl Sante & Rech Med U1083, Ctr Natl Rech Sci, Unite Mixte Rech 6214, F-49000 Angers, France
[4] Univ Illinois, Dept Chem, Champaign, IL 61820 USA
[5] Univ Paris 11, Inst Natl Sante & Rech Med, F-94270 Le Kremlin Bicetre, France
[6] Univ Strasbourg, Inst Genet & Biol Mol & Cellulaire, Coll France, FR-67404 Illkirch Graffenstaden, France
[7] Univ Texas SW Med Ctr Dallas, Dept Pediat, Dallas, TX 75235 USA