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Abstract:
Proton magnetic resonance spectroscopy (1H-MRS) was used to test whether patients with major depressive disorder have increased glucose and lactate levels in the pregenual anterior cingulate cortex (PACC) compared to healthy controls. Therefore, forty healthy and depressed participants spectra were acquired from the PACC using a maximum echo JPRESS protocol. Results show significant increases of glucose and lactate in patients, which are also associated with depression severity. These findings indicate impaired brain energy metabolism in MDD with increased fraction of energy utilization via glycolysis and reduced mitochondrial oxidative clearance of lactate.
