However, quantitative examination of immunoreactive puncta within the auditory cortex demonstrated that the number of puncta for synaptophysin or vesicular glutamate transporters VGLUT1 and VGLUT2 was minimally altered or remained unchanged in schizophrenia (Sweet et al., 2007; Moyer et al., 2013). This evidence concerns the gene SLC17A7 and schizophrenia.