SYNPR and schizophrenia: Patients with schizophrenia have both decreased synaptoporin levels (Guillozet-Bongaarts et al., 2014; Chang et al., 2017) and mossy fiber deficits (Kolomeets et al., 2007), indicating that synaptoporin expression may be a good marker for hippocampal synaptic disturbances in schizophrenia.