A statistical analysis of murine incisional and excisional acute wound models.

A statistical analysis of murine incisional and excisional acute wound models.
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DOI:
10.1111/wrr.12148
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发表时间:
2014-03
期刊:
Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society
影响因子:
--
通讯作者:
Hardman MJ
Hardman MJ
中科院分区:
其他
文献类型:
--
作者:
Ansell DM;Campbell L;Thomason HA;Brass A;Hardman MJ

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小鼠代表临床前体内研究最常用的种属。虽然切口和切除急性小鼠伤口模型都经常使用,但关于哪种模型是最佳模型几乎没有一致意见。此外,目前缺乏创伤程序、分析时间点、评估方法的标准化,以及使用个体伤口与个体动物作为重复,使得难以在研究之间进行比较。在这里,我们分析了同一动物切口和切除伤口的二期愈合,评估了多个参数,以确定未来研究的最佳方法。我们报告说,组织学提供了最少的变量评估愈合。此外,仅组织学(非面积测量法)能够检测去势小鼠模型中的加速愈合。也许最重要的是,我们发现同一动物的伤口之间几乎没有相关性,这表明使用伤口(而不是动物)生物复制品是完全可以接受的。总的来说,这些发现应该指导和完善未来的研究,增加检测新表型的可能性,同时减少实验所需的动物数量。
Mice represent the most commonly used species for preclinical in vivo research. While incisional and excisional acute murine wound models are both frequently employed, there is little agreement on which model is optimum. Moreover, current lack of standardization of wounding procedure, analysis time point(s), method of assessment, and the use of individual wounds vs. individual animals as replicates makes it difficult to compare across studies. Here we have profiled secondary intention healing of incisional and excisional wounds within the same animal, assessing multiple parameters to determine the optimal methodology for future studies. We report that histology provides the least variable assessment of healing. Furthermore, histology alone (not planimetry) is able to detect accelerated healing in a castrated mouse model. Perhaps most importantly, we find virtually no correlation between wounds within the same animal, suggesting that use of wound (not animal) biological replicates is perfectly acceptable. Overall, these findings should guide and refine future studies, increasing the likelihood of detecting novel phenotypes while reducing the numbers of animals required for experimentation.
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