Resistance of optogenetically evoked motor function to global ischemia and reperfusion in mouse in vivo

J Cereb Blood Flow Metab. 2013 Aug;33(8):1148-52. doi: 10.1038/jcbfm.2013.89. Epub 2013 Jun 5.

Abstract

Recently we have shown that despite reperfusion, sensory processing exhibits persistent deficits after global ischemia in a mouse in vivo model. We now address how motor output, specifically cortically evoked muscle activity, stimulated by channelrhodopsin-2 is affected by global ischemia and reperfusion. We find that the light-based optogenetic motor map recovers to 80% within an hour. Moreover, motor output recovers relatively faster and more completely than the sensory processing after 5-minute period of global ischemia. Our results suggest a differential sensitivity of sensory and motor systems to the effects of global ischemia and reperfusion that may have implications for rehabilitation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Brain Ischemia / physiopathology*
  • Brain Mapping
  • Channelrhodopsins
  • Electroencephalography
  • Electromyography
  • Lasers
  • Male
  • Mice
  • Mice, Transgenic
  • Neuroimaging
  • Physical Stimulation
  • Reperfusion Injury / physiopathology*

Substances

  • Channelrhodopsins