"Genetic association study between cognitive performance, polymorphisms of GAD1/Reelin and 3T magnetic ressonance spectroscopy of GABA/glutamate in bipolar I disorder and healthy controls"

• Grant number: 12/23796-2
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: June 01, 2013
• End date: May 31, 2016
• Field of knowledge: Health Sciences - Medicine - Psychiatry
• Principal Investigator: Homero Pinto Vallada Filho
• Grantee: Márcio Gerhardt Soeiro-de-Souza
• Host Institution: Faculdade de Medicina (FM). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

Background: The pathophysiological mechanisms of bipolar disorder are not completely clarified and several hypothesis have already been formulated including the role of monoamines, gama amino butyric acid (GABA) and glutamate. GABA is the main inhibitory neurotransmitter while glutamate is the main excitatory neurotransmitter. Genes that play a role in GABA metabolism and in the activity of GABA neurons are very important to understand the GABA function, once they affect neurodevelopment and its dysfunctions may predispose to neuropsychiatric diseases. The two genes that are going to be study in this project are glutamic acid descarboxylase (GAD1) and reelin (Reln). The enzyme glutamic acid descarboxylase (GAD67) metabolizes glutamate in GABA in the pre synaptic neuronal regions and is coded by the gene GAD1. Reelin is secretory serine protease with dual roles in mammalian brain: embryologically, it guides neurons and radial glial cells to their corrected positions in the developing brain; in adult brain, Reelin is involved in a signaling pathway which underlies neurotransmission, memory formation and synaptic plasticity. Magnetic resonance spectroscopy (MRS) studies on bipolar disorder show a number of alterations in cerebral level of GABA and glutamate in different cerebral areas when compared to healthy subjects and other mood disorders. Objective: Investigate in bipolar patients and helathy controls the association of GAD1 and Reln single nucleotide polymorphisms(SNP) and cerebral levels of GABA/glutamate on MRS. Methods: 70 euthymic bipolar I patients and 70 healthy controls are going to be genotyped for GAD1 and Reln SNPs and GABA/glutamate MRS.

Scientific publications

(11)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SOEIRO-DE-SOUZA, M. G.; LAFER, B.; MORENO, R. A.; NERY, F. G.; CHILE, T.; CHAIM, K.; DA COSTA LEITE, C.; MACHADO-VIEIRA, R.; OTADUY, M. C. G.; VALLADA, H.. The CACNA1C risk allele rs1006737 is associated with age-related prefrontal cortical thinning in bipolar I disorder. TRANSLATIONAL PSYCHIATRY, v. 7, APR 11 2017. (10/18672-7, 12/23796-2)

SOEIRO-DE-SOUZA, M. G.; SCOTTI-MUZZI, E.; FERNANDES, F.; DE SOUSA, R. T.; LEITE, C. C.; OTADUY, M. C.; MACHADO-VIEIRA, R.. Anterior cingulate cortex neuro-metabolic changes underlying lithium-induced euthymia in bipolar depression: A longitudinal H-1-MRS study. European Neuropsychopharmacology, v. 49, p. 93-100, AUG 2021. (10/12286-8, 12/23796-2)

GERMANN, JUERGEN; GOUVEIA, FLAVIA VENETUCCI; MARTINEZ, RAQUEL C. R.; ZANETTI, MARCUS VINICIUS; DE SOUZA DURAN, FABIO LUIS; CHAIM-AVANCINI, TIFFANY M.; SERPA, MAURICIO H.; CHAKRAVARTY, M. MALLAR; DEVENYI, GABRIEL A.. Fully Automated Habenula Segmentation Provides Robust and Reliable Volume Estimation Across Large Magnetic Resonance Imaging Datasets, Suggesting Intriguing Developmental Trajectories in Psychiatric Disease. BIOLOGICAL PSYCHIATRY-COGNITIVE NEUROSCIENCE AND NEUROIMAGING, v. 5, n. 9, p. 7-pg., 2020-09-01. (09/14891-9, 13/03905-4, 10/18672-7, 12/23796-2)

CHING, CHRISTOPHER R. K.; HIBAR, DERREK P.; GURHOLT, TIRIL P.; NUNES, ABRAHAM; THOMOPOULOS, SOPHIA I.; ABE, CHRISTOPH; AGARTZ, INGRID; BROUWER, RACHEL M.; CANNON, DARA M.; DE ZWARTE, SONJA M. C.; et al. What we learn about bipolar disorder from large-scale neuroimaging: Findings and future directions from theENIGMABipolar Disorder Working Group. Human Brain Mapping, JUL 2020. (10/18672-7, 12/23796-2, 13/03905-4, 09/14891-9)

SCOTTI-MUZZI, ESTEVAO; CHILE, THAIS; VALLADA, HOMERO; OTADUY, MARIA CONCEPCION GARCIA; SOEIRO-DE-SOUZA, MARCIO GERHARDT. BDNF rs6265 differentially influences neurometabolites in the anterior cingulate of healthy and bipolar disorder subjects. BRAIN IMAGING AND BEHAVIOR, v. N/A, p. 12-pg., 2023-01-11. (10/12286-8, 12/23796-2)

CHING, CHRISTOPHER R. K.; HIBAR, DERREK P.; GURHOLT, TIRIL P.; NUNES, ABRAHAM; THOMOPOULOS, SOPHIA I.; ABE, CHRISTOPH; AGARTZ, INGRID; BROUWER, RACHEL M.; CANNON, DARA M.; DE ZWARTE, SONJA M. C.; et al. What we learn about bipolar disorder from large-scale neuroimaging: Findings and future directions from theENIGMABipolar Disorder Working Group. Human Brain Mapping, v. 43, n. 1, SI, p. 56-82, JAN 2022. (10/18672-7, 13/03905-4, 09/14891-9, 12/23796-2)

HIBAR, D. P.; WESTLYE, L. T.; DOAN, N. T.; JAHANSHAD, N.; CHEUNG, J. W.; CHING, C. R. K.; VERSACE, A.; BILDERBECK, A. C.; UHLMANN, A.; MWANGI, B.; et al. Cortical abnormalities in bipolar disorder: an MRI analysis of 6503 individuals from the ENIGMA Bipolar Disorder Working Group. MOLECULAR PSYCHIATRY, v. 23, n. 4, p. 932-942, APR 2018. (12/23796-2, 10/18672-7, 13/03905-4, 09/14891-9)

SOEIRO-DE-SOUZA, MARCIO GERHARDT; GARCIA OTADUY, MARIA CONCEPCION; MACHADO-VIEIRA, RODRIGO; MORENO, RICARDO ALBERTO; NERY, FABIANO G.; LEITE, CLAUDIA; LAFER, BENY. Lithium-associated anterior cingulate neurometabolic profile in euthymic Bipolar I disorder: A H-1-MRS study. Journal of Affective Disorders, v. 241, p. 192-199, DEC 1 2018. (12/23796-2)

SOEIRO-DE-SOUZA, MARCIO GERHARDT; PASTORELLO, BRUNO F.; LEITE, CLAUDIA DA COSTA; HENNING, ANKE; MORENO, RICARDO A.; GARCIA OTADUY, MARIA CONCEPCION. Dorsal Anterior Cingulate Lactate and Glutathione Levels in Euthymic Bipolar I Disorder: H-1-MRS Study. INTERNATIONAL JOURNAL OF NEUROPSYCHOPHARMACOLOGY, v. 19, n. 8, AUG 2016. (10/18672-7, 12/23796-2)

SCOTTI-MUZZI, ESTEVAO; CHILE, THAIS; MORENO, RICARDO; PASTORELLO, BRUNO FRACCINI; LEITE, CLAUDIA DA COSTA; HENNING, ANKE; GARCIA OTADUY, MARIA CONCEPCION; VALLADA, HOMERO; SOEIRO-DE-SOUZA, MARCIO GERHARDT. ACC Glu/GABA ratio is decreased in euthymic bipolar disorder I patients: possible in vivo neurometabolite explanation for mood stabilization. EUROPEAN ARCHIVES OF PSYCHIATRY AND CLINICAL NEUROSCIENCE, v. 271, n. 3, JAN 2020. (12/23796-2, 10/12286-8)

FAVRE, PAULINE; PAULING, MELISSA; STOUT, JACQUES; HOZER, FRANZ; SARRAZIN, SAMUEL; ABE, CHRISTOPH; ALDA, MARTIN; ALLOZA, CLARA; ALONSO-LANA, SILVIA; ANDREASSEN, OLE A.; et al. Widespread white matter microstructural abnormalities in bipolar disorder: evidence from mega- and meta-analyses across 3033 individuals. NEUROPSYCHOPHARMACOLOGY, v. 44, n. 13, p. 2285-2293, DEC 2019. (10/18672-7, 12/23796-2, 13/03905-4, 09/14891-9)