A new study has demonstrated recovery of brain circulation and some cellular function in a decapitated pig model. Although these results are exciting and thought-provoking, they do not challenge the concept or practical implications of brain death, as no evidence of global electrical activity or functional recovery of the brain was presented.
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Greer, D.M., Lewis, A. Restoration of cellular activity after decapitation. Nat Rev Neurol 15, 438–439 (2019). https://doi.org/10.1038/s41582-019-0209-x
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DOI: https://doi.org/10.1038/s41582-019-0209-x