[1] Univ Turin, Dept Internal Med, Div Endocrinol, I-10126 Turin, Italy
[2] Univ Turin, Dept Anat Pharmacol & Forens Med, I-10126 Turin, Italy
[3] Univ Milano Bicocca, Dept Expt & Environm Med & Biotechnol, Milan, Italy
[4] Europeptides, Argenteuil, France
[5] Univ Montpellier, Lab Aminoacides Peptides & Prot, Montpellier, France