A material for treatment of brain injury, a method for treatment of brain injury, a material for regeneration of brain neurons, and a method for regeneration of brain neurons are provided. The material for treatment of brain injury contains a carrier on which at least one selected from the group consisting of N-cadherin, a fusion protein containing an entire or partial region of N-cadherin, and a fusion protein containing an entire or partial region of a protein having homology to N-cadherin is immobilized or coated.

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