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  • Title: Effects of indomethacin and buprenorphine analgesia on the postoperative recovery of mice.
    Author: Blaha MD, Leon LR.
    Journal: J Am Assoc Lab Anim Sci; 2008 Jul; 47(4):8-19. PubMed ID: 18702446.
    Abstract:
    Buprenorphine (Bup) is the most commonly used analgesic in mice, yet few objective assessments address its superiority for postsurgical recovery. In mice, IP implantation of a radiotelemetry device induces decreases in body weight (BW), food and water intake (FI, WI), core temperature (Tc), and activity levels that persist approximately 14 d in the absence of analgesia. To compare the efficacy of Bup with that of the nonsteroidal antiinflammatory drug indomethacin (Indo) for postsurgical recovery, male C57BL/6J mice were treated on the day of radiotelemetry implantation with Bup (0.3 mg/kg s.c.) or Indo (1 mg/kg s.c.) followed by treatment with Indo (1 mg/kg p.o.) on the next day (Bup-Indo versus Indo-Indo). Responses were compared between treatments in mice implanted with a radiotelemetry device and those that did not undergo surgery. Changes in BW, FI, WI, Tc, and activity were examined throughout 14 d of recovery. Indo-Indo was more efficacious in inhibiting postsurgical BW, FI, and WI reductions, compared with Bup-Indo. Bup also reduced BW and FI in the absence of surgery, indicating a nonspecific effect of this drug on these variables. Indo-Indo treatment was associated with higher activity levels during lights-on-to-lights-off transition periods compared with that observed with Bup-Indo. According to 5 objective measures of surgical recovery, our data suggest that Indo-Indo treatment is more efficacious than is Bup-Indo for postsurgical recovery of radiotelemetry-implanted mice.
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