GRIN2B and schizophrenia: In addition, we have confirmed previous results, this time in a larger cohort (n = 15 cf. n = 20), indicating no change in [3H] ifenprodil binding to GluN2B in the hippocampus of schizophrenia subjects in comparison to controls [10] and extended these findings to report no hemisphere specific alteration in GluN2B binding density.