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Repetitive mild traumatic brain injury causes synergistic effects on mortality.

PMID: 33474534 (view PubMed database entry)
DOI: 10.17912/micropub.biology.000356 (read at publisher's website )
PMCID: PMC7812388 (free full text version available)

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Ashley M Willes, Tori R Krcmarik, Alexander E Daughtry, Douglas J Brusich,

Repetitive mild TBI (rmTBI) events are common in the U.S. However, rmTBI is challenging to study and this contributes to a poor understanding of mechanistic bases for disease following these injuries. We used fruit flies (<i>D. melanogaster</i>) and a modified version of the high-impact trauma (HIT) method of TBI to assess the pattern of mortality observed after rmTBI. We found that the pattern of mortality was synergistic after a critical number of injuries, similar to that observed previously at more moderate levels of TBI severity. The identity of cellular and molecular factors which contribute to the synergistic effect on mortality remain unknown, but this model offers a platform for investigation into such factors.

MicroPubl Biol (microPublication biology)
[2021, 2021:]

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