[1] UCL, Dept Clin Biochem, Vasc Dis Prevent Clin, Univ Coll London Med Sch, London NW3 2QG, England
[2] Democritus Univ Thrace, Outpatient Clin Obes Diabet & Metab, Dept Internal Med 2, Thrace, Greece
[3] Tulane Univ, Dept Med, Hlth Sci Ctr, New Orleans, LA 70118 USA
[4] Tulane Univ, Hlth Sci Ctr, Dept Pharmacol, New Orleans, LA 70118 USA