Schizophrenia risk is influenced by both genetic and environmental factors. The immediate early gene early growth response 3 (Egr3), is regulated downstream of several schizophrenia risk genes and encodes a zinc-finger transcription factor protein. Previous studies from our lab indicate that Egr3 deficient (Egr3 -/-) mice exhibit schizophrenia-like phenotypes. We also discovered decreased serotonin 2a receptors (5-HT2AR) in the Egr3 -/- mice, similar to studies that reported decreased 5-HT2ARs in schizophrenia patients.
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