PIEZO2 and channelopathy: Furthermore, the finding of Oswald et al. (Oswald et al. 2012) that N-methyl-d-aspartate (NMDA) antagonist preincubation of neural wound media diminishes the secondary calcium waves is in line with the theory of Sonkodi that Piezo2 channelopathy activates NMDA receptors (Sonkodi et al. 2021a, c; Sonkodi 2021).