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Open Access Strategies for Refinement of Abdominal Device Implantation in Mice: Strain, Carboxymethylcellulose, Thermal Support, and Atipamezole

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A widely used in vivo technique in mice and other species is the surgical implantation of transmitters for telemetric monitoring of core body temperature, locomotor activity, and other variables. However, these devices are quite large relative to the size of the mouse abdomen. We report here on the results of several related studies that we conducted to evaluate refinement strategies relevant to implantation of abdominal devices in mice. First, we evaluated survival from surgery as a function of strain and body weight and found that both parameters influence the proportion of mice that survive. Second, we assessed the effect of several interventions on postsurgical recovery of food and water intakes, core temperature, and locomotor activity. Some of the interventions were associated with increased mortality (atipamezole) or were otherwise detrimental (the abdominal lubricant carboxymethylcellulose), whereas others had little or no effect on recovery (thermal support). These findings indicate that interventions presumed to promote recovery from surgery that are based on data from other species may not always have the anticipated positive effect in mice. This study therefore underscores the need to carefully assess the effect of modifications in experimental procedures to avoid causing unexpected complications in mice.

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Document Type: Miscellaneous

Publication date: March 1, 2007

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  • The Journal of the American Association for Laboratory Animal Science (JAALAS) serves as an official communication vehicle for the American Association for Laboratory Animal Science (AALAS). The journal includes a section of refereed articles and a section of AALAS association news. The mission of the refereed section of the journal is to disseminate high-quality, peer-reviewed information on animal biology, technology, facility operations, management, and compliance as relevant to the AALAS membership. JAALAS accepts research reports (data-based) or scholarly reports (literature-based), with the caveat that all articles, including solicited manuscripts, must include appropriate references and must undergo peer review.

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