... to our lab members, especially to Ute Nonhoff and Josmar Langner, for criti-cal and productive discussions, to Joyce So for critical reading of the man-uscript, to Dan Shenton (University of ... GAPDHactivity is a main regulator of H2O2-induced apoptosis [41].In general, oxidative stress contributes profoundly to thecellular aging process, as well as to a large number of genetic and infectious ... post-column into a ratio of 1:4,resulting in an inlet flow into the tandem mass spectrome-ter of 200 µl/min; 3 µl sample was injected onto thecolumn and the total run time was 20 min.Detection of the...