- Sodium nitroprusside prevents chemical hypoxia-induced cell death through iron ions stimulating the activity of the Na+-Ca2+ exchanger in C6 glioma cells. Amoroso, S., Tortiglione, A., Secondo, A., Catalano, A., Montagnani, S., Di Renzo, G., Annunziato, L. J. Neurochem. (2000)