The human brain utilizes lactate via the tricarboxylic acid cycle: a C-labelled microdialysis and high-resolution nuclear magnetic resonance study

1 Division of Neurosurgery, Department of Clinical Neurosciences, University of Calgary, 1403, 29th Street NW, Calgary, Alberta T2N 2T9, Canada 2 Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Box 167, Addenbrooke’s Hospital, Hills Road, Cambridge CB2 0QQ, UK 3 Wolfson Brain Imaging Centre, Department of Clinical Neurosciences, University of Cambridge, Box 65, Addenbrooke’s Hospital, Hills Road, Cambridge CB2 0QQ, UK 4 Department of Chemistry, University of Cambridge, University Chemical Laboratory, Lensfield Road, Cambridge CB2 1EW, UK 5 Division of Anaesthesia, Department of Medicine, University of Cambridge, Box 93, Addenbrooke’s Hospital, Hills Road, Cambridge CB2 0QQ, UK