1 Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece. Electronic address: madalamaga@med.uoa.gr.
2 Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, Athens, Greece; Second Department of Critical Care, Attikon General University Hospital, Medical School, National and Kapodistrian University of Athens, Haidari, Greece.