國家衛生研究院 NHRI:Item 3990099045/10224
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    题名: Peripheral sensory stimulation is neuroprotective in a rat photothrombotic ischemic stroke model
    作者: Bandla, A;Le Teng Sherry, C;Lim, F;Chuan, CK;Liao, LD;Thakor, NV
    贡献者: Institute of Biomedical Engineering and Nanomedicine
    摘要: Ischemic stroke is one of the leading causes of death and disability in the world. Thrombolytic therapy using recombinant tissue plasminogen activator (rtPA), the only FDA-approved drug for acute ischemia, is limited by a narrow therapeutic time window and risk of hemorrhage. There is a serious need for a neuroprotective therapy which is clinically viable. We earlier demonstrated that peripheral sensory stimulation (PSS) is a potential therapeutic intervention for hyperacute ischemia resulting in recovery of neurovascular functions when administered immediately following ischemia onset in a rat model. Here, we investigated the potential neuroprotective effect of PSS during the hyperacute phase of stroke in a rat photothrombotic ischemia (PTI) model. We employed electrocorticography (ECoG) to image cortical neural activity responses pre-and post-ischemia. Results showed that the neural activity including somatosensory evoked potentials (SSEPs) and alpha-to-delta ratio (ADR) were restored following administration of PSS. Further, immunohistochemistry and TTC staining also indicated the neuroprotective effect of PSS intervention, protecting more neurons and reduced infarct. Overall, the study demonstrated that PSS administered immediately following ischemia induction in a rat PTI model can significantly promote neuroprotection via inhibition of peri-infarct expansion and enhanced cortical neural activity functions, suggesting effective recovery. Future work utilizing multimodal imaging to probe changes in neurovascular functions, will explore application of PSS as an adjuvant intervention for improving rtPA thrombolysis therapy.
    日期: 2016-10
    關聯: 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016. 2016 Oct;2016-October:6086-6089.
    Link to: http://dx.doi.org/10.1109/EMBC.2016.7592117
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000399823506108
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85009064384
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