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Estrogens in schizophrenia: What do we know?

Published online by Cambridge University Press:  13 August 2021

L. Paulino Ferreira*
Affiliation:
Psiquiatria E Saúde Mental, Centro Hospitalar de Setúbal, Setúbal, Portugal
M. Alves
Affiliation:
Psiquiatria E Saúde Mental, Centro Hospitalar de Setúbal, Setúbal, Portugal
M. Duarte
Affiliation:
Psiquiatria E Saúde Mental, Centro Hospitalar de Setúbal, Setúbal, Portugal
A. Gamito
Affiliation:
Psiquiatria E Saúde Mental, Centro Hospitalar de Setúbal, Setúbal, Portugal
*
*Corresponding author.

Abstract

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Introduction

Schizophrenia is a chronic disease that significantly impacts cognitive functioning. Sex differences in incidence, onset and course of schizophrenia suggest estrogens have a protective role.

Objectives

Our aim is to review the state of the art on this matter.

Methods

Through a selection of the most relevant articles found on PubMed and ClinicalKey searching the keywords: “estrogens” and “schizophrenia”.

Results

Accumulating evidence has led to the hypothesis that estrogens act as a protective factor in women regarding the onset of schizophrenia as their increase in puberty may help delay the onset of symptoms. Also, the estrogens abrupt decline in menopause may account for a second peak of onset and greater severity of the symptoms. During the menstrual cycle, when serum estrogens are at their lowest, there is an increase in the number of psychotic episodes and an exacerbation of psychotic symptoms. Pregnancy leads to an improvement of psychotic symptoms, which then worsen in postpartum. Clinical trials testing the efficacy of estrogens have been promising, which suggest they might be a useful adjuvant treatment. Despite the evidence of clinical efficacy, health risks for women using estrogen therapy should be considered, as they decrease its acceptability as a viable treatment option. The use of selective estrogen receptor modulators (SERMs), as raloxifene, could be a favorable and safer alternative.

Conclusions

In conclusion, estrogens are proving to be a promising option as a complementary therapy for schizophrenia; however, further studies are needed to investigate whether they might be overall beneficial.

Disclosure

No significant relationships.

Type
Abstract
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of the European Psychiatric Association
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