Deep brain stimulation of the orbitofrontal cortex reduces perseverative behavior induced by quinpirole in rats



Document title: Deep brain stimulation of the orbitofrontal cortex reduces perseverative behavior induced by quinpirole in rats
Journal: Revista médica del Hospital General de México
Database: PERIÓDICA
System number: 000439484
ISSN: 0185-1063
Authors: 1
2
3
Institutions: 1Hospital General de México, Departamento de Anestesiología, Ciudad de México. México
2Hospital General de México, Departamento de Cirugía Experimental, Ciudad de México. México
3Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Ciudad de México. México
Year:
Season: Ene-Mar
Volumen: 82
Number: 1
Pages: 15-21
Country: México
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract Different rodent models of obsessive-compulsive disorder (OCD) have been used with the purpose for understanding this mental disease; in a previous article, we described quinpirole (QP) as a dopaminergic inductor of perseverative behavior. Objective: The objective of this study was to evaluate the decrease of QP-induced perseverative behavior observed in an open field after unilateral deep brain stimulation-low frequency (DBS-LF) into the orbitofrontal cortex (OFC) in Wistar rats. Materials and Methods: A total of 40 adult male Wistar rats were divided into three groups, each group underwent pharmacological treatment: sodium chloride (NaCl), QP, and clomipramine (CMP), these groups were not implanted with an electrode. An additional group was implanted into OFC Sham (SH), and after behavior evaluation, unilateral DBS-LF (6 Hz) was applied during night time for 5 min each side; first left side and after right side. Results: Distance traveled significantly decreased in the 5 min observed between QP and NaCl (p = 0.016), and a significant difference was found between NaCl and SH (p = 0.020). There was no significant difference between NaCl and CMP (p = 0.582) or NaCl and DBS-LF (p = 0.829). No significant difference between DBS left side and right side was found (p = 1.00). Conclusions: Unilateral DBS of the OFC prevents perseverative behavior in an open field, induced by QP
Disciplines: Medicina
Keyword: Neurología,
Farmacología,
Estimulación cerebral profunda,
Corteza orbitofrontal,
Quinpirola,
Clomipramina,
Modelos animales
Keyword: Neurology,
Pharmacology,
Deep brain stimulation,
Orbitofrontal cortex,
Quinpirole,
Clomipramine,
Animal models
Full text: https://www.hospitalgeneral.mx/frame_esp.php?id=16