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Title: Expression profile of neurotransmitter receptor and regulatory genes in the prefrontal cortex of spontaneously hypertensive rats: Relevance to neuropsychiatric disorders
Authors: Santoro, Marcos Leite [UNIFESP]
Santos, Camila Mauricio [UNIFESP]
Ota, Vanessa Kiyomi [UNIFESP]
Gadelha, Ary [UNIFESP]
Stilhano, Roberta Sessa [UNIFESP]
Diana, Mariana Cepollaro [UNIFESP]
Silva, Patricia Natalia [UNIFESP]
Nery Spindola, Leticia Maria [UNIFESP]
Melaragno, Maria Isabel [UNIFESP]
Bressan, Rodrigo Affonseca [UNIFESP]
Han, Sang Won [UNIFESP]
Abilio, Vanessa Costhek [UNIFESP]
Belangero, Sintia Iole [UNIFESP]
Universidade Federal de São Paulo (UNIFESP)
Interdisciplinmy Lab Clin Neurosci LiNC
Keywords: Spontaneously hypertensive rats
Gene expression
DNA methylation
Issue Date: 30-Nov-2014
Publisher: Elsevier B.V.
Citation: Psychiatry Research. Clare: Elsevier B.V., v. 219, n. 3, p. 674-679, 2014.
Abstract: The spontaneously hypertensive rat (SHR) strain was shown to be a useful animal model to study several behavioral, pathophysiological and pharmacological aspects of schizophrenia and attention-deficit/hyperactivity disorder. To further understand the genetic underpinnings of this model, our primary goal in this study was to compare the gene expression profile of neurotransmitter receptors and regulators in the prefrontal cortex (PFC) and nucleus accumbens (NAcc) of SHR and Wistar rats (control group). in addition, we investigated DNA methylation pattern of promoter region of the genes differentially expressed. We performed gene expression analysis using a PCRarray technology, which simultaneously measures the expression of 84 genes related to neurotransmission. Four genes were significantly downregulated in the PFC of SHR compared to Wistar rats (Gad2, Chrnb4, Slc5a7, and Qrfpr) and none in nucleus accumbens. Gad2 and Qrfpr have CpG islands in their promoter region. for both, the promoter region was hypomethylated in SHR group, and probably this mechanism is not related with the downregulation of these genes. in summary, we identified genes that are downregulated in the PFC of SHR, and might be related to the behavioral abnormalities exhibited by this strain. (C) 2014 Elsevier Ireland Ltd. All rights reserved.
ISSN: 0165-1781
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