Abstract：
:The acute stroke phase is a critical time frame used to evaluate stroke severity, therapeutic options, and prognosis while also serving as a major tool for the development of diagnostics. To further understand stroke pathophysiology and to enhance the development of treatments, our group developed a translational pig ischemic stroke model. In this study, the evolution of acute ischemic tissue damage, immune responses, and functional deficits were further characterized. Stroke was induced by middle cerebral artery occlusion in Landrace pigs. At 24 h post-stroke, magnetic resonance imaging revealed a decrease in ipsilateral diffusivity, an increase in hemispheric swelling resulting in notable midline shift, and intracerebral hemorrhage. Stroke negatively impacted white matter integrity with decreased fractional anisotropy values in the internal capsule. Like patients, pigs showed a reduction in circulating lymphocytes and a surge in neutrophils and band cells. Functional responses corresponded with structural changes through reductions in open field exploration and impairments in spatiotemporal gait parameters. Characterization of acute ischemic stroke in pigs provided important insights into tissue and functional-level assessments that could be used to identify potential biomarkers and improve preclinical testing of novel therapeutics.
journal_name
Brain Resjournal_title
Brain researchauthors
Kaiser EE,Waters ES,Fagan MM,Scheulin KM,Platt SR,Jeon JH,Fang X,Kinder HA,Shin SK,Duberstein KJ,Park HJ,West FDdoi
10.1016/j.brainres.2020.146778subject
Has Abstractpub_date
2020-06-01 00:00:00pages
146778eissn
0006-8993issn
1872-6240pii
S0006-8993(20)30134-7journal_volume
1736pub_type
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