Recent references emphasizing the role of selenium in metabolic syndrome:

Dietary selenium intake is negatively associated with sialic acid and metabolic syndrome features in healthy young adults — ZULET M. A. et al. — 2009 — Nutr. Res., vol. 21, n°1, pp. 41-48

Mitochondrial H2O2 emission and cellular redox state link excess fat intake to insulin resistance in both rodents and humans — ANDERSON E.J. et al. — 2009 — J. Clin. Invest., vol. 119, n°3, pp. 573-581

Selenium intake reduces serum C3, an early marker of metabolic syndrome manifestations, in healthy young adults — PUCHAU B. et al. — 2008 — Eur. J. Clin. Nutr., doi: 10.1038/ejcn.2008.48

Serum selenium and glutathione peroxidase in patients with obesity and metabolic syndrome — GHAYOUR-MOBARHAN M. et al. — 2008 — Pakistan J. Nutr., vol. 7, n°1, pp. 112-117