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  Children's Hospital Research  Children's Hospital Labs
Larry Benowitz, PhD  Children's logo  Harvard logo
 Larry Benowitz, PhD
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   Department  Neurosurgery
   Hospital Title  Director, Laboratories for Neuroscience
Research in Neurosurgery
   Academic Title  Associate Professor of Neurosurgery
   Phone  617 919 2278
   Fax  617 730 0243
   Email  Larry Benowitz
   Location  300 Longwood Avenue
Enders 4 (rm 414)
Boston MA 02115
Research Overview

Larry Benowitz's research focuses on restoring nerve function lost as a consequence of stroke or injury. Under normal circumstances, nerve cells in the mature central nervous system (CNS: brain, spinal cord, eye) cannot re-establish their connections after injury, nor can intact cells grow new connections to compensate for those that have been lost. As a result of this, victims of traumatic injury, stroke or neurodegenerative diseases can suffer permanent and often devastating losses in movement, sensation, bodily functions, and thinking. The goals of the Benowitz lab are to discover the basic mechanisms that control the growth of nerve connections and to apply insights from this work to promote regeneration and functional recovery after CNS injury.

Current projects focus on:
  • Optic nerve regeneration: research on the molecules that enable the projection neurons of the eye (retinal ganglion cells) to regrow their connections through the optic nerve.

  • Spinal cord injury and stroke: methods to enhance the rewiring of brain connections and improve functional outcome after spinal cord injury or stroke.

  • Inosine and cell signaling pathways: the small, naturally occurring molecule, inosine, stimulates certain types of nerve cells to extend nerve fibers in cell culture and in vivo. Inosine appears to stimulate a cell signaling pathway that controls the expression of a group of genes required for axon growth.
About Larry Benowitz

Larry Benowitz received his PhD from California Institute of Technology, where he completed a fellowship in biology. He subsequently completed fellowships in Psychology and Brain Sciences at Massachusetts Institute of Technology and in biological chemistry at Harvard Medical School.

He has been invited to speak at a number of scientific symposia, and was the Plenary speaker, International Symposium on Regeneration, Asilomar, CA in 2001; Keynote speaker, "Neuroscience Day,", Medical College of Ohio in 2002; and Visiting Professor, University of Pennsylvania, in 2003. His research has been written up in the Boston Globe, Harvard Focus, several Children's Hospital publications, and has been reported worldwide on CBS, CNN and the BBC.

Key Publications
  • Fischer D, He Z, Benowitz LI. Counteracting the Nogo receptor enhances optic nerve regeneration if retinal ganglion cells are in active growth state. Journal of Neuroscience 2004; 24: 1646-1651.

  • Chen P, Goldberg DE, Kolb B, Lanser M, Benowitz LI. Inosine induces axonal rewiring and improves behavioral outcome after stroke. Proceedings of the National Academy of Sciences USA 99: 1931-1936.

  • Yin Y, Cui Q, Li Y, Irwin N, Fischer D, Harvey AR, Benowitz LI. Macrophage-derived factors stimulate optic nerve regeneration. Journal of Neuroscience 2003; 15: 2284-2293.
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