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In this study, we found that vesicular glutamate transporter 2 (VgluT2) expression may play an important role in protecting DA neurons. Selective deletion of VgluT2 in DA neurons led to a significant reduction in expression of brain-derived neurotrophic factor and its receptor tyrosine receptor kinase B and a significant increase in DA neuron death caused by the neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine. Restoration of VgluT2 expression in DA neurons reversed these alterations. 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