Abstract:
Objective:Limited attention has been given to ocular injuries associated with traumatic brain injury (TBI). The retina is an extension of the central nervous system and evaluation of ocular damage may offer a less-invasive approach to gauge TBI severity and response to treatment. We aim to characterize acute changes in the mouse eye after exposure to two different models of TBI to assess the utility of eye damage as a surrogate to brain injury. Methods:A model of blast TBI (bTBI) using a shock tube was compared to a lateral fluid percussion injury model (LFPI) using fluid pressure applied directly to the brain. Whole eyes were collected from mice 3 days post LFPI and 24 days post bTBI and were evaluated histologically using a hematoxylin and eosin stain. Results:bTBI mice showed evidence of vitreous detachment in the posterior chamber in addition to vitreous hemorrhage with inflammatory cells. Subretinal hemorrhage, photoreceptor degeneration, and decreased cellularity in the retinal ganglion cell layer was also seen in bTBI mice. In contrast, eyes of LFPI mice showed evidence of anterior uveitis and subcapsular cataracts. Interpretation:We demonstrated that variations in the type of TBI can result in drastically different phenotypic changes within the eye. As such, molecular and phenotypic changes in the eye following TBI may provide valuable information regarding the mechanism, severity, and ongoing pathophysiology of brain injury. Because vitreous samples are easily obtained, molecular changes within the eye could be utilized as biomarkers of TBI in human patients.
journal_name
Ann Clin Transl Neuroljournal_title
Annals of clinical and translational neurologyauthors
Evans LP,Newell EA,Mahajan M,Tsang SH,Ferguson PJ,Mahoney J,Hue CD,Vogel EW 3rd,Morrison B 3rd,Arancio O,Nichols R,Bassuk AG,Mahajan VBdoi
10.1002/acn3.523subject
Has Abstractpub_date
2018-02-26 00:00:00pages
240-251issue
3issn
2328-9503pii
ACN3523journal_volume
5pub_type
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journal_title:Annals of clinical and translational neurology
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pub_type: 杂志文章
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journal_title:Annals of clinical and translational neurology
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journal_title:Annals of clinical and translational neurology
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更新日期:2014-07-01 00:00:00
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更新日期:2018-01-09 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:2018-11-20 00:00:00
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journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
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更新日期:2015-06-01 00:00:00
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pub_type: 杂志文章
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更新日期:2020-08-01 00:00:00
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journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
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更新日期:2020-04-01 00:00:00
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pub_type: 杂志文章
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更新日期:2017-09-27 00:00:00
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journal_title:Annals of clinical and translational neurology
pub_type: 杂志文章
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更新日期:2019-03-07 00:00:00