MAPT and neuroblastoma: Although our O‐GlcNAc data collected from SH‐SY5Y neuroblastoma exposed to H2O2 induced oxidative stress are in accordance with the data found in cardiomyocytes and also demonstrate the reciprocal relationship between O‐GlcNAc and specific tau phosphorylation sites, the question whether these effects observed at short term could be understood and interpreted also under chronic conditions remains to be answered.