We recently showed that intranigral transplantation of embryonic neurons in a mouse model of Parkinson's disease led to anatomical and functional recovery of the nigrostriatal pathway. Here we report, in-vivo electrophysiological characteristics of these grafted neurons 2 months after transplantation. Extracellular activity was mapped within the transplant using microarray electrodes and exploration was done with antidromic and orthodromic striatal stimulation. Grafted neurons expressed spontaneous electrophysiological activity with dopaminergic-like characteristics, and antidromic and orthodromic responses suggest a functional recovery of the nigrostriatal loop. NeuroReport 21:485-489 (C) 2010 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins.
机构:
King Fahad Med City, Natl Neurosci Inst, Parkinsons Movement Disorders & Neurorestorat Pro, Riyadh, Saudi ArabiaUniv Texas Hlth Sci Ctr Houston, Houston, TX 77030 USA
机构:
UT Move, University of Texas Health Care Science Center, Houston, TXUT Move, University of Texas Health Care Science Center, Houston, TX
Mehanna R.
Lai E.C.
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机构:
Department of Neurology, Houston Methodist Neurological Institute, 6560 Fannin, Suite 802, Houston 77030, TXUT Move, University of Texas Health Care Science Center, Houston, TX