[1] Karolinska Hosp, Ctr Mol Med, Karolinska Inst, Dept Med, SE-17176 Stockholm, Sweden
[2] Huddinge Univ Hosp, Karolinska Inst, Ctr Metab & Endocrinol, Dept Med, Stockholm, Sweden
[3] Huddinge Univ Hosp, Karolinska Inst, Novum, Mol Nutr Unit,Ctr Nutr & Toxicol, Stockholm, Sweden
[4] Biogen Inc, Cambridge, MA USA
[5] Yale Univ, Sch Med, Sect Immunobiol, New Haven, CT USA
[6] Yale Univ, Sch Med, Howard Hughes Med Inst, New Haven, CT 06510 USA