國家衛生研究院 NHRI:Item 3990099045/8425
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/8425


    Title: Improving neurovascular outcomes with bilateral forepaw stimulation in a rat photothrombotic ischemic stroke model
    Authors: Liao, LD;Bandla, A;Ling, JM;Liu, YH;Kuo, LW;Chen, YY;King, NKK;Lai, HY;Lin, YR;Thakor, NV
    Contributors: Institute of Biomedical Engineering and Nanomedicine
    Abstract: Restoring perfusion to the penumbra during the hyperacute phase of ischemic stroke is a key goal of neuroprotection. Thrombolysis is currently the only approved treatment for ischemic stroke. However, its use is limited by the narrow therapeutic window and side effect of bleeding. Therefore, other interventions are desired that could potentially increase the perfusion of the penumbra. Here, we hypothesized that bilateral peripheral electrical stimulation will improve cerebral perfusion and restore cortical neurovascular response. We assess the outcomes of bilateral forepaw electrical stimulation at intensities of 2 and 4 mA, administered either unilaterally or bilaterally. We developed a combined electrocorticogram (ECoG)-functional photoacoustic microscopy (fPAM) system to evaluate the relative changes in cerebral hemodynamic function and electrophysiologic response to acute, focal stroke. The fPAM system is used for cerebral blood volume (CBV) and hemoglobin oxygen saturation (SO2) and the ECoG for neural activity, namely somatosensory-evoked potential (SSEP), interhemispheric coherence, and alpha-delta ratio (ADR) in response to forepaw stimulation. Our results confirmed the neuroprotective effect of bilateral forepaw stimulation at 2 mA as indicated by the 82% recovery of ADR and 95% improvement in perfusion into the region of penumbra. This experimental model can be used to study other potential interventions such as therapeutic hypertension and hypercarbia.
    Date: 2014-07
    Relation: Neurophotonics. 2014 Jul-Sep;1(1):Article number 011007.
    Link to: http://dx.doi.org/10.1117/1.NPh.1.1.011007
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=2329-423X&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000209836500006
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84979084992
    Appears in Collections:[Li-Wei Kuo] Periodical Articles

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