University Library
  • Login
A gateway to Melbourne's research publications
Minerva Access is the University's Institutional Repository. It aims to collect, preserve, and showcase the intellectual output of staff and students of the University of Melbourne for a global audience.
View Item 
  • Minerva Access
  • Medicine, Dentistry & Health Sciences
  • Florey Department of Neuroscience and Mental Health
  • Florey Department of Neuroscience and Mental Health - Research Publications
  • View Item
  • Minerva Access
  • Medicine, Dentistry & Health Sciences
  • Florey Department of Neuroscience and Mental Health
  • Florey Department of Neuroscience and Mental Health - Research Publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

    The effect of estrogenic compounds on psychosis-like behaviour in female rats

    Thumbnail
    Download
    Published version (1.739Mb)

    Citations
    Scopus
    Web of Science
    Altmetric
    8
    5
    Author
    Sbisa, A; van den Buuse, M; Gogos, A
    Date
    2018-03-26
    Source Title
    PLoS One
    Publisher
    PUBLIC LIBRARY SCIENCE
    University of Melbourne Author/s
    Gogos, Androniki; van den Buuse, Maarten; Sbisa, Alyssa
    Affiliation
    Florey Department of Neuroscience and Mental Health
    Pharmacology and Therapeutics
    Psychiatry
    Metadata
    Show full item record
    Document Type
    Journal Article
    Citations
    Sbisa, A., van den Buuse, M. & Gogos, A. (2018). The effect of estrogenic compounds on psychosis-like behaviour in female rats. PLOS ONE, 13 (3), https://doi.org/10.1371/journal.pone.0193853.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/254741
    DOI
    10.1371/journal.pone.0193853
    Abstract
    17β-estradiol treatment has shown benefit against schizophrenia symptoms, however long-term use may be associated with negative side-effects. Selective estrogen receptor modulators, such as raloxifene and tamoxifen, have been proposed as suitable alternatives to 17β-estradiol. An isomer of 17β-estradiol, 17α-estradiol, is considered less carcinogenic, and non-feminising in males, however little is known about its potential as a treatment for schizophrenia. Moreover, the mechanism underlying the therapeutic action of estrogens remains unclear. We aimed to investigate the ability of these estrogenic compounds to attenuate psychosis-like behaviour in rats. We used two acute pharmacologically-induced assays of psychosis-like behaviour: psychotomimetic drug-induced hyperlocomotion and disruption of prepulse inhibition (PPI). Female Long Evans rats were either intact, ovariectomised (OVX), or OVX and chronically treated with 17β-estradiol, 17α-estradiol, raloxifene or tamoxifen. Only 17β-estradiol treatment attenuated locomotor hyperactivity induced by the indirect dopamine receptor agonist, methamphetamine. 17β-estradiol- and tamoxifen-treated rats showed attenuated methamphetamine- and apomorphine (dopamine D1/D2 receptor agonist)-induced disruption of PPI. Raloxifene-treated rats showed attenuated apomorphine-induced PPI disruption only. Baseline PPI was significantly reduced following OVX, and this deficit was reversed by all estrogenic compounds. Further, PPI in OVX rats was increased following administration of apomorphine. This study confirms a protective effect of 17β-estradiol in two established animal models of psychosis, while tamoxifen showed beneficial effects against PPI disruption. In contrast, 17α-estradiol and raloxifene showed little effect on dopamine receptor-mediated psychosis-like behaviours. This study highlights the utility of some estrogenic compounds to attenuate psychosis-like behaviour in rats, supporting the notion that estrogens have therapeutic potential for psychotic disorders.

    Export Reference in RIS Format     

    Endnote

    • Click on "Export Reference in RIS Format" and choose "open with... Endnote".

    Refworks

    • Click on "Export Reference in RIS Format". Login to Refworks, go to References => Import References


    Collections
    • Minerva Elements Records [45689]
    • Psychiatry - Research Publications [1103]
    • Pharmacology and Therapeutics - Research Publications [387]
    • Florey Department of Neuroscience and Mental Health - Research Publications [1052]
    Minerva AccessDepositing Your Work (for University of Melbourne Staff and Students)NewsFAQs

    BrowseCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects
    My AccountLoginRegister
    StatisticsMost Popular ItemsStatistics by CountryMost Popular Authors