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Evaluation of the paw withdrawal latency for the comparison between tramadol and butorphanol administered locally, in the plantar surface of rat, preliminary study.
PLOS ONE ( IF 2.9 ) Pub Date : 2021-07-26 , DOI: 10.1371/journal.pone.0254497
Claudia Interlandi 1 , Fabio Leonardi 2 , Filippo Spadola 1 , Giovanna Lucrezia Costa 1
Affiliation  

The aim of the study was to evaluate the analgesic efficacy of tramadol compared to butorphanol administered locally in ventral surface of the hind paw of rats. Prospective, randomized experimental study; twenty-one adult male Wistar rats were selected. Heart rate (beats minute-1), respiratory rate (breaths minute-1), and paw withdrawal latency (onset of radiant heat until paw withdrawal/seconds) were measured prior (T0) and after (T5, T10, T15, T20) intraplantar injection with saline solution 0,9% (group S), butorphanol 1 mg kg-1 (group B), and tramadol 1 mg kg-1 (group T). Shapiro-Wilk normality test and Friedman test were used to analyze the data expressed by median and range. Statistical significance was set at p < 0.05. Statistical analysis of heart rate showed that there were significant differences between groups at different monitoring times. There were no significant differences in respiratory rate after intraplantar injection in any of the treatment groups. The paw withdrawal latency values at T5, T10, and T15 minutes after intraplantar injection in the group B were significantly higher compared to baseline value and to the values of the other groups. The paw withdrawal latency were no significant changes in the measurements of intragroup in S and T. Intraplantar administration of butorphanol provides a good analgesia and significantly increases paw withdrawal latency compared to tramadol. Intraplantar injection of butorphanol could be useful and safe and safe technique to achieve local analgesia for minor surgical procedures in rats.

中文翻译:

评估在大鼠足底表面局部给药曲马多和布托啡诺之间的爪子缩回潜伏期,初步研究。

该研究的目的是评估曲马多与在大鼠后爪腹面局部给药的布托啡诺相比的镇痛效果。前瞻性、随机实验研究;选择了 21 只成年雄性 Wistar 大鼠。在之前 (T0) 和之后 (T5、T10、T15、T20) 测量心率(每分钟心跳)、呼吸频率(呼吸分钟 - 1)和缩爪潜伏期(辐射热开始直到缩爪/秒)足底内注射 0.9% 盐水溶液(S 组)、布托啡诺 1 mg kg-1(B 组)和曲马多 1 mg kg-1(T 组)。Shapiro-Wilk 正态性检验和 Friedman 检验用于分析以中位数和极差表示的数据。统计显着性设定为 p < 0.05。心率统计分析表明,不同监测时间组间存在显着差异。在任何治疗组中足底内注射后呼吸频率没有显着差异。与基线值和其他组的值相比,B 组足底内注射后 T5、T10 和 T15 分钟的缩爪潜伏期值显着更高。缩爪潜伏期在 S 和 T 组内的测量中没有显着变化。与曲马多相比,足底内施用布托啡诺可提供良好的镇痛效果并显着增加缩爪潜伏期。足底注射布托啡诺可能是一种有用且安全的技术,可实现大鼠小手术的局部镇痛。在任何治疗组中足底内注射后呼吸频率没有显着差异。与基线值和其他组的值相比,B 组足底内注射后 T5、T10 和 T15 分钟的缩爪潜伏期值显着更高。缩爪潜伏期在 S 和 T 组内的测量中没有显着变化。与曲马多相比,足底内施用布托啡诺可提供良好的镇痛效果并显着增加缩爪潜伏期。足底注射布托啡诺可能是一种有用且安全的技术,可实现大鼠小手术的局部镇痛。在任何治疗组中足底内注射后呼吸频率没有显着差异。与基线值和其他组的值相比,B 组足底内注射后 T5、T10 和 T15 分钟的缩爪潜伏期值显着更高。缩爪潜伏期在 S 和 T 组内的测量中没有显着变化。与曲马多相比,足底内施用布托啡诺可提供良好的镇痛效果并显着增加缩爪潜伏期。足底注射布托啡诺可能是一种有用且安全的技术,可实现大鼠小手术的局部镇痛。与基线值和其他组的值相比,B 组足底内注射后的 T15 分钟和 T15 分钟显着更高。缩爪潜伏期在 S 和 T 组内的测量中没有显着变化。与曲马多相比,足底内施用布托啡诺可提供良好的镇痛效果并显着增加缩爪潜伏期。足底内注射布托啡诺可能是一种有用且安全的技术,可实现大鼠小手术的局部镇痛。与基线值和其他组的值相比,B 组足底内注射后的 T15 分钟和 T15 分钟显着更高。缩爪潜伏期在 S 和 T 组内的测量中没有显着变化。与曲马多相比,足底内施用布托啡诺可提供良好的镇痛效果并显着增加缩爪潜伏期。足底注射布托啡诺可能是一种有用且安全的技术,可实现大鼠小手术的局部镇痛。与曲马多相比,足底内施用布托啡诺可提供良好的镇痛效果并显着增加缩爪潜伏期。足底注射布托啡诺可能是一种有用且安全的技术,可实现大鼠小手术的局部镇痛。与曲马多相比,足底内施用布托啡诺可提供良好的镇痛效果并显着增加缩爪潜伏期。足底注射布托啡诺可能是一种有用且安全的技术,可实现大鼠小手术的局部镇痛。
更新日期:2021-07-26
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