13C magnetic resonance spectroscopy detection of changes in serine isotopomers reflects changes in mitochondrial redox status

C. Bryce Johnson, Andrey P. Tikunov, Haakil Lee, Justyna E. Wolak, Peter Pediaditakis, Doug A. Romney, Ekhson Homuhamedov, Michael P. Gamcsik, Jeffrey M. Macdonald University of North Carolina at Chapel Hill Magnetic Resonance in Medicine 68 (3) (2012)