Published online by Cambridge University Press: 28 April 2020
The need for experimental traumatic brain injury (TBI) models comes from the drive to better understand TBI pathophysiology in order to improve outcome. Models are surrogates for human pathology, they can be cellular (in vitro) or whole organism (in vivo). Although no model can entirely replace the need for human studies, the use of cell cultures and animals offer unique advantages. There is uniformity of subjects, and the same injury can be repeatedly recreated. They allow for the creation of simple or complex injuries, whilst offering the ability to investigate global or focal change(s) from minutes to days following the insult, and there are no recruitment or loss of follow-up issues. The greatest advantages are possibly the ability to perform multiple and invasive sampling of tissues, measure fatal end points and trial widest range of drug doses which is precluded in clinical studies.
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