The purpose of this study was to investigate the neuroprotective effects of low-intensity pulsed ultrasound (LIPUS) on behavioral and histological outcomes in a mouse model of traumatic brain injury (TBI). Mice subjected to controlled cortical impact injury were treated with LIPUS in the injured region daily for a period of 4 weeks. The effects of LIPUS on edema were observed by MR imaging in the mouse brain at 1 and 4 days following TBI. Brain water content, blood-brain barrier permeability, histology analysis, and behavioral studies were performed to assess the effects of LIPUS. Two-way analysis of variance and Student t test were used for statistical analyses, with a significant level of 0.05. Treatment with LIPUS significantly attenuated brain edema, blood-brain barrier permeability, and neuronal degeneration beginning at day 1. Compared with the TBI group, LIPUS also significantly improved functional recovery and reduced contusion volumes up to post-injury day 28. Post-injury LIPUS treatment reduced brain edema and improved behavioral and histological outcomes following TBI. The neuroprotective effects of LIPUS may be a promising new technique for treating TBI.
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| http://dx.doi.org/10.1038/s41598-017-15916-2 | DOI Listing |
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