Preemptive Analgesia with Acupuncture Monitored by c-Fos Expression in Rats

Pain behavior and awareness are characterized by heightened alertness and anxiety, which begin to disappear as soon as the curative process starts. The present study aimed to quantify c-fos expression in rat spinal cords and brains after a surgical stimulus and with preoperative or postoperative acu...

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Detalles Bibliográficos
Autores: Gonçalves de Freitas, André T.A. [UNESP], Lemonica, Lino [UNESP], De Faveri, Julio [UNESP], Pereira, Sergio [UNESP], Bedoya Henao, Maria D. [UNESP]
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/172530
Acceso en línea:http://dx.doi.org/10.1016/j.jams.2015.08.002
http://hdl.handle.net/11449/172530
Access Level:acceso abierto
Palabra clave:Acupuncture
Analgesia
C-fos protein
Pain
Descripción
Sumario:Pain behavior and awareness are characterized by heightened alertness and anxiety, which begin to disappear as soon as the curative process starts. The present study aimed to quantify c-fos expression in rat spinal cords and brains after a surgical stimulus and with preoperative or postoperative acupuncture. Animals were randomly divided into preoperative and postoperative groups and were then further divided into control, manual acupuncture (MA), or electroacupuncture (EA) groups. Expression of c-fos was quantified using immunohistochemistry. The collected data were analyzed using the t test at a 5% probability level. Presurgery and postsurgery spinal cord c-fos expressions were similar in all of the treatment groups. In the control rats, c-fos expression was higher before surgery than after surgery, contradicting the expected outcome of acupuncture and preemptive analgesia. After treatment, the expression of c-fos in the brains of the rats in the MA and the EA groups was reduced compared with that of the rats in the control group. These findings suggest that acupuncture used as preemptive analgesia in rats is a useful model for studying its application in human treatment.