Expression levels of vascular endothelial growth factor and its receptors in Parkinson's disease

Recently, we confirmed the presence of enhanced neural reconstruction in Parkinson's disease and in an animal model of Parkinson's disease based on increased polysialic acid-like immunoreactivity. Changes in neurogenesis often appear parallel to changes in angiogenesis. Moreover, both these processes share similar modulating factors, like vascular endothelial growth factor (VEGF) and its receptors VEGFR-1 (Flt-1) and VEGFR-2 (Flk-1). Using immunohistochemistry, we identified in this study upregulation of VEGF in the substantia nigra but not in the striatum of patients with Parkinson's disease by enzyme-linked immunosorbent assay. Such overexpression may participate in vascular remodeling and neurogenesis in the substantia nigra of Parkinson's disease.

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