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Effect of intrathecal down-regulation of 5-HT_(5A) receptors by RNA interference in rats with chemotherapy-evoked hyperalgesia / 重庆医科大学学报
Journal of Chongqing Medical University ; (12)2003.
Article in Chinese | WPRIM | ID: wpr-580982
ABSTRACT

Objective:

To investigate the role of 5-HT5A receptors in rats with chemo the rapy-evoked hyperalgesia by intra the calinjection of adenovirus-mediated small-interference RNA.

Methods:

Adult male SD rats were randomly divided into 2 groupsmodel group(n=10,intraperitoneal injection of vincristine)and control group(n=10,intraperitoneal injection of normal saline).The mechanical hyperalgesia were measured as the paw withdrawal thresholds(PWT)and the expression of 5-HT5AR mRNA in L4、5 spinal cord were determined by RT-PCR.Thirty rats with chemotherapy-evoked hyperalgesia were randomly divided into 3 groups after the formation of chemotherapy pain modelexperimental group,negative control group and blank control group,which respectively were treated with intrathecal injection of Ad-5-HT5AR-siRNA,Ad-X-HK and normal saline.Expressions of 5-HT5AR mRNA and PWT after intrathecal injection were assessed respectively.

Results:

Compared with control group,PWT of rats in model group were significantly decreased(P

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Journal of Chongqing Medical University Year: 2003 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Journal of Chongqing Medical University Year: 2003 Type: Article