[1] Univ Rome, Dept Lab Med & Microbiol, Ctr Integrated Res, I-00128 Rome, Italy
[2] Ctr Microcitemia, I-95123 Catania, Italy
[3] IRMA, I-95024 Acireale, Catania, Italy
[4] Univ London Imperial Coll Sci Technol & Med, Inst Reprod & Dev Biol, Parturit Res Grp, Dept Surg & Canc, London W12 0NN, England
[5] Univ Catania, Dept Chem Sci, I-95125 Catania, Italy
[6] CNR, Inst Biomol Chem, I-95125 Catania, Italy