Anxious–Retarded Depression: Relation with Plasma Vasopressin and Cortisol
Recently, we published a report on the effects of repetitive transcranial magnetic stimulation (rTMS) on plasma levels of neuroactive steroids in major depression (Padberg et al, 2002). We meanwhile noticed that the progesterone levels reported in Figure 2 in this paper were above those usually found in human plasma. We therefore have reanalyzed our GC/MS data. By doing so we found that, when switching from steroid analysis by GC/MS from the electron impact (EI) mode that was employed in our previous study in depression (Romeo et al, 1998) to the negative chemical ionization (NCI) mode, we made a mistake with the calculation of progesterone concentrations. In our paper (Padberg et al, 2002) we reported on calculations based on Neuropsychopharmacology (2003) 28, 610–611 & 2003 Nature Publishing Group All rights reserved 0893-133X/03 $25.00