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Nav2 is necessary for cranial nerve development and blood pressure regulation

Nav2 is necessary for cranial nerve development and blood pressure regulation,10.1186/1749-8104-5-6,Neural Development,Elizabeth M McNeill,Kenneth P R

Nav2 is necessary for cranial nerve development and blood pressure regulation   (Citations: 2)
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BACKGROUND: All-trans retinoic acid (atRA) is required for nervous system development, including the developing hindbrain region. Neuron navigator 2 (Nav2) was first identified as an atRA-responsive gene in human neuroblastoma cells (retinoic acid-induced in neuroblastoma 1, Rainb1), and is required for atRA-mediated neurite outgrowth. In this paper, we explore the importance of Nav2 in nervous system development and function in vivo. RESULTS: Nav2 hypomorphic homozygous mutants show decreased survival starting at birth. Nav2 mutant embryos show an overall reduction in nerve fiber density, as well as specific defects in cranial nerves IX (glossopharyngeal) and X (vagus). Nav2 hypomorphic mutant adult mice also display a blunted baroreceptor response compared to wild-type controls. CONCLUSIONS: Nav2 functions in mammalian nervous system development, and is required for normal cranial nerve development and blood pressure regulation in the adult.
Journal: Neural Development - NEURAL DEV , vol. 5, no. 1, pp. 6-14, 2010
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