Estrogen Receptors: Mechanism of Action and Relevance to Schizophrenia

Background: Sex differences are observed in schizophrenia, with women exhibiting an overall better disease outcome, leading to the estrogen hypothesis of schizophrenia that postulates a protective role of estrogen against the development and severity of the disorder. Estrogen (17β- estradiol) is a sex steroid hormone; its primary mechanism of action is via binding to estrogen receptors and initiating gene expression. While there has been significant attention placed on the impact of estrogen in schizophrenia, less is known about the importance of estrogen receptors in schizophrenia.