Thus, it has been reported that the synthetic steroid diarylpropionitrile (DPN), a selective agonist of ERβ that exerts neuroprotective actions [90,91,92], induces the expression of neuroglobin in SK-N-BE neuroblastoma cells, while propyl pyrazole triol (PTT), a selective agonist of ERα, does not [73]. Here, NGB is linked to neuroblastoma.