LAURA ALEXANDRA NUSSBAUM, LAVINIA MARIA HOGEA, ROXANA FOLESCU, MIRELA LOREDANA GRIGORAS, CARMEN LACRAMIOARA ZAMFIR, MIHAELA BOANCA, DRAGOS ERDELEAN, ELENA CECILIA ILDIKO ROSCA, LILIANA NUSSBAUM, MIHAELA ADRIANA SIMU, VIOREL LUPU BIOCHEMICAL MODIFICATIONS STUDY OF CEREBRAL METABOLITES BY SPECTROSCOPY IN EPILEPSY TREATMENT Through this research, our main focus was: to investigate the biochemical brain metabolites (NAA-N-acetylaspartate, GABA-Gama-Aminobutyric Acid, Asp-Aspartate, CR-Creatine, Gln-Glutamine, GPC-Glicerophosphocholine, PC-Phosphocholine, PCr-Phosphocreatine, Tau-Taurine, N-MDA-N-Metyl-D-Aspartate, Serine, Glicine, Cho-Choline); the neuroimagistic, the brain biochemical and metabolic abnormalities in children and adolescents with epilepsy before and after treatment; to review the main antiepileptic medication administered to these patients; and to make some correlations with the results obtained through Magnetic Resonance (MR) Spectroscopy, for further proper early detection and intervention in children and adolescents with epilepsy. Our research was performed between 2010-2017, involving 45 children and adolescents with epilepsy. Also, the patients were evaluated through MR Spectroscopy at baseline and after pharmacotherapy. Through the MR Spectroscopy, we investigated key aspects of the brain function and metabolism. The antiepileptic medication was chosen according to the guides and the type of epileptic seizures. The efficacy of the chosen therapy was evaluated through the change of the relevant MR spectroscopy biochemical brain metabolites. Our results, showed statistically significant modified values and concentrations of the biochemical cerebral metabolites. Our research was a proof, which the evaluation of the biochemical brain metabolites through MR Spectroscopy is of high clinical utility in prevention, early detection and intervention in epilepsy in children and adolescents.