Advanced search
Start date
Betweenand

Ventromedial prefrontal cortex metabolite levels in obsessive-compulsive patients: a proton magnetic resonance spectroscopy study

Grant number: 16/05865-8
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): August 01, 2016
Effective date (End): March 06, 2018
Field of knowledge:Health Sciences - Medicine - Psychiatry
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal researcher:Eurípedes Constantino Miguel Filho
Grantee:Marcelo Camargo Batistuzzo
Home Institution: Instituto de Psiquiatria Doutor Antonio Carlos Pacheco e Silva (IPq). Hospital das Clínicas da Faculdade de Medicina da USP (HCFMUSP). Secretaria da Saúde (São Paulo - Estado). São Paulo , SP, Brazil
Associated research grant:11/21357-9 - Research on neural circuits and biological markers involved in obsessive-compulsive disorder using behavioral paradigms of fear and anxiety, AP.TEM

Abstract

Studies of proton magnetic resonance spectroscopy (¹H MRS) indicate that obsessive-compulsive disorder (OCD) patients, when compared to healthy individuals, may present dysfunctional glutamatergic and GABAergic systems (the two main neurotransmitters in the central nervous system, that plays excitatory and inhibitory roles, respectively) in prefrontal and striatal brain regions. However, the literature remains controversial because there are no studies that have used ¹H MRS technique that allowed dissociating glutamate values (GLU) from glutamine (GLN): the fact that the metabolites appear overlapped (GLX) complicates a more detailed interpretation of the results. At the same time, particularly important for the neurobiology of OCD, the region of the ventral medial prefrontal cortex (CVM) has been characterized as one of the main regions associated with the disorder. Therefore, this project aims to study the amount of metabolites in the CVM of OCD patients and controls, with a new ¹H MRS pulse sequence which enables disentangling glutamate values from glutamine, and also to correlate these values with demographic and clinical data (such as age, sex and symptoms of OCD, depression or anxiety). As a secondary objective, the amount of the metabolites will be analyzed after three types of treatment for OCD: one conventional (serotonin reuptake inhibitor - sertraline) and two non-conventional (transcranial direct-current stimulation and radiosurgery by gamma rays). Finally, we will be able to analyze the responders and no responders to treatment, regardless of the treatment kind which they have been subjected. (AU)

News published in Agência FAPESP Newsletter about the scholarship:
Articles published in other media outlets (0 total):
More itemsLess items
VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)

Scientific publications (7)
(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)
BATISTUZZO, MARCELO C.; SOTTILI, BRUNA A.; SHAVITT, ROSELI G.; LOPES, ANTONIO C.; CAPPI, CAROLINA; DE MATHIS, MARIA ALICE; PASTORELLO, BRUNO; DINIZ, JULIANA B.; SILVA, RENATA M. F.; MIGUEL, EURIPEDES C.; HOEXTER, MARCELO Q.; OTADUY, MARIA C. Lower Ventromedial Prefrontal Cortex Glutamate Levels in Patients With Obsessive-Compulsive Disorder. FRONTIERS IN PSYCHIATRY, v. 12, JUN 8 2021. Web of Science Citations: 0.
BERNARDES, ELISA TEIXEIRA; SARAIVA, LEONARDO CARDOSO; DE MARCO E SOUZA, MARINA; QUEIROZ-HOEXTER, MARCELO; CHACON, PRISCILA; REQUENA, GUARACI; MIGUEL, EURIPEDES CONSTANTINO; SHAVITT, ROSELI GEDANKE; POLANCZYK, GUILHERME VANONI; CAPPI, CAROLINA; BATISTUZZO, MARCELO CAMARGO. Cognitive performance in children and adolescents at high-risk for obsessive-compulsive disorder. BMC Psychiatry, v. 20, n. 1 JUL 20 2020. Web of Science Citations: 0.
SILVEIRA, VITOR PORTELLA; FRYDMAN, ILANA; FONTENELLE, LEONARDO F.; MATTOS, PAULO; DE OLIVEIRA-SOUZA, RICARDO; MOLL, JORGE; HOEXTER, MARCELO QUEIROZ; MIGUEL, EURIPEDES CONSTANTINO; MCLAUGHLIN, NICOLE C. R.; SHEPHARD, ELIZABETH; BATISTUZZO, MARCELO CAMARGO. Exploring response inhibition and error monitoring in obsessive-compulsive disorder. JOURNAL OF PSYCHIATRIC RESEARCH, v. 126, p. 26-33, JUL 2020. Web of Science Citations: 0.
MIOTTO, ELIANE C.; BALARDIN, JOANA B.; MARTIN, MARIA DA GRACA M.; POLANCZYK, V, GUILHERME; SAVAGE, CARY R.; MIGUEL, EURIPEDES C.; BATISTUZZO, MARCELO C. Effects of semantic categorization strategy training on episodic memory in children and adolescents. PLoS One, v. 15, n. 2 FEB 18 2020. Web of Science Citations: 0.
T. SHAVITT; I.N.S. JOHNSON; M.C. BATISTUZZO. Hippocampal formation volume, its subregions, and its specific contributions to visuospatial memory tasks. Brazilian Journal of Medical and Biological Research, v. 53, n. 9, p. -, 2020. Web of Science Citations: 0.
PAIVA, RAQUEL R.; BATISTUZZO, MARCELO C.; MCLAUGHLIN, NICOLE C.; CANTERAS, MIGUEL M.; DE MATHIS, MARIA E.; REQUENA, GUARACI; SHAVITT, ROSELI G.; GREENBERG, BENJAMIN D.; NOREN, GEORG; RASMUSSEN, STEVEN A.; TAVARES, HERMANO; MIGUEL, EURIPEDES C.; LOPES, ANTONIO C.; HOEXTER, MARCELO Q. Personality measures after gamma ventral capsulotomy in intractable OCD. PROGRESS IN NEURO-PSYCHOPHARMACOLOGY & BIOLOGICAL PSYCHIATRY, v. 81, p. 161-168, FEB 2 2018. Web of Science Citations: 3.
HOEXTER, MARCELO Q.; BIAZOLI, JR., CLAUDINEI E.; ALVARENGA, PEDRO G.; BATISTUZZO, MARCELO C.; SALUM, GIOVANNI A.; GADELHA, ARY; PAN, PEDRO M.; ANES, MAURICIO; MANCINI-MARTINS, LETICIA; MOURA, LUCIANA M.; SORIANO-MAS, CARIES; AQUILLA, MARCO A. G. DEL'; ARNARO, JR., EDSON; ROHDE, LUIS A.; JACKOWSKI, ANDREA P.; BRESSAN, RODRIGO A.; MIGUEL, EURIPEDES C.; DO ROSARIO, MARIA C.; SATO, JOAO R. Low frequency fluctuation of brain spontaneous activity and obsessive compulsive symptoms in a large school-age sample. JOURNAL OF PSYCHIATRIC RESEARCH, v. 96, p. 224-230, JAN 2018. Web of Science Citations: 1.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.