Dorsal Anterior Cingulate Lactate and Glutathione Levels in Euthymic Bipolar I Disorder: H-1-MRS Study

Autor(es)

Soeiro-de-Souza, Marcio Gerhardt ; Pastorello, Bruno F. ; Leite, Claudia da Costa ; Henning, Anke ; Moreno, Ricardo A. ; Garcia Otaduy, Maria Concepcion

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF NEUROPSYCHOPHARMACOLOGY; v. 19, n. 8 AUG 2016.
• Citações Web of Science: 12

Resumo

Oxidative stress and mitochondrial dysfunction are 2 closely integrated processes implicated in the physiopathology of bipolar disorder. Advanced proton magnetic resonance spectroscopy techniques enable the measurement of levels of lactate, the main marker of mitochondrial dysfunction, and glutathione, the predominant brain antioxidant. The objective of this study was to measure brain lactate and glutathione levels in bipolar disorder and healthy controls. Eighty-eight individuals (50 bipolar disorder and 38 healthy controls) underwent 3T proton magnetic resonance spectroscopy in the dorsal anterior cingulate cortex (2x2x4.5cm(3)) using a 2-D JPRESS sequence. Lactate and glutathione were quantified using the ProFit software program. Bipolar disorder patients had higher dorsal anterior cingulate cortex lactate levels compared with controls. Glutathione levels did not differ between euthymic bipolar disorder and controls. There was a positive correlation between lactate and glutathione levels specific to bipolar disorder. No influence of medications on metabolites was observed. This is the most extensive magnetic resonance spectroscopy study of lactate and glutathione in bipolar disorder to date, and results indicated that euthymic bipolar disorder patients had higher levels of lactate, which might be an indication of altered mitochondrial function. Moreover, lactate levels correlated with glutathione levels, indicating a compensatory mechanism regardless of bipolar disorder diagnosis. (AU)

• Processo FAPESP: 10/18672-7 - SPECGENE: estudo de associação de polimorfismos de nucleotídeo único de GAD1 e reelina e espectroscopia por ressonância magnética de glutamato/GABA no transtorno bipolar tipo I
• Beneficiário: Ricardo Alberto Moreno
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/23796-2 - "Estudo genético de associação entre desempenho neurocognitivo, polimorfismos de GAD1 e Reelina e espectroscopia por ressonância magnética 3T de Glutamato/GABA no transtorno bipolar tipo I e controles saudáveis"
• Beneficiário: Márcio Gerhardt Soeiro-de-Souza
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado