Cited by 66Stress Responses and CortisolEstrogen and related hormone effectsNeuroendocrine regulation and behavior

Estrogen receptor beta activation prevents glucocorticoid receptor-dependent effects of the central nucleus of the amygdala on behavior and neuroendocrine function

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Weiser, Michael J., Foradori, Chad D., Handa, Robert J.·2010·Brain Research

Abstract

Neuropsychiatric disorders such as anxiety and depression have formidable economic and societal impacts. A dysregulation of the hypothalamo-pituitary-adrenal (HPA) axis leading to elevated endogenous glucocorticoid levels is often associated with such disorders. Chronically high glucocorticoid levels may act upon the central nucleus of the amygdala (CeA) to alter normally adaptive responses into those that are maladaptive and detrimental. In addition to glucocorticoids, other steroid hormones such as estradiol and androgens can also modify hormonal and behavioral responses to threatening stimuli. In particular, estrogen receptor beta (ERbeta) agonists have been shown to be anxiolytic. Consequently, these experiments addressed the hypothesis that the selective stimulation of glucocorticoid receptor (GR) in the CeA would increase anxiety-like behaviors and HPA axis reactivity to stress, and further, that an ERbeta agonist could modulate these effects. Young adult female Sprague-Dawley rats were ovariectomized and bilaterally implanted via stereotaxic surgery with a wax pellet containing the selective GR agonist RU28362 or a blank pellet, to a region just dorsal to the CeA. Four days later, animals were administered the ERbeta agonist S-DPN or vehicle (with four daily sc injections). Anxiety-type behaviors were measured using the elevated plus maze (EPM). Central RU28362 implants caused significantly higher anxiety-type behaviors in the EPM and greater plasma CORT levels than controls given a blank central implant. Moreover, S-DPN treated animals, regardless of type of central implant, displayed significantly lower anxiety-type behaviors and post-EPM plasma CORT levels than vehicle treated controls or vehicle treated animals implanted with RU28362. These results indicate that selective activation of GR within the CeA is anxiogenic, and peripheral administration of an ERbeta agonist can overcome this effect. These data suggest that estradiol signaling via ERbeta prevents glucocorticoid-dependent effects of the CeA on behavior and neuroendocrine function.

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Crossref · 10.1016/j.brainres.2010.03.098

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  • Peripheral administration of ERβ agonist R-DPN prevents increased HPA axis reactivity and increased anxiety-like behaviors in female rats in response to GR agonist implant adjacent to the central nucleus of the amygdala.

    “Peripheral administration of the estrogen receptor β agonist, R-DPN, prevented the increased HPA axis reactivity and increased anxiety-like behaviors in female rats in response to the implantation of a wax pellet containing a GR agonist, adjacent to the central nucleus of the amygdala (Weiser, Foradori, & Handa, 2010).”

    From Hypothalamic–pituitary–adrenal and hypothalamic–pituitary–gonadal axes: sex differences in regulation of stress responsivity (2017) · cites this paper as Weiser, Foradori, & Handa, 2010

    The Results (§2) report that peripheral S-DPN blocked the anxiety-like behaviors and increased stress-induced corticosterone associated with RU28362 implants. But the claim names R-DPN. Drug treatments (§4; page not provided) explicitly states that only the S-enantiomer was tested. (LLM, conf=0.90)

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  • Estradiol inhibits HPA axis reactivity through ERβ.

    “Together, such data suggest a possible mechanism for estradiol actions in inhibiting HPA axis reactivity through estrogen receptor β.”

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Research works printed but not linked: 2

  1. Laflamme N Nappi RE Drolet G Labrie C Rivest S 1998 Expression and neuropeptidergic characterization of estrogen receptors (ERalpha and ERbeta) throughout the rat brain: anatomical evidence of distinct roles of each subtype J Neurobiol 36 357 78 9733072
  2. Shughrue PJ Lane MV Merchenthaler I 1997 Comparative distribution of estrogen receptor-alpha and -beta mRNA in the rat central nervous system J Comp Neurol 388 507 25 9388012

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Authors
Weiser, M. J., Foradori, C. D., & Handa, R. J.
Affiliations
  • Colorado State University (US)
  • University of Arizona (US)
Corresponding author
Handa, Robert J.
Venue
Brain Research
Publisher
Elsevier BV
Published
2010-06
Volume
1336
Pages
78-88
ISSN
0006-8993 (ISSN-L)
OpenAlex
W2067978273
Cited by
66
References
85
Citations by year
2026: 3 · 2025: 1 · 2024: 1 · 2023: 5 · 2022: 4 · 2021: 5 · 2019: 6 · 2018: 3 · 2017: 3 · 2016: 2 · 2015: 4 · 2014: 6 · 2013: 6 · 2012: 9
FWCI
3.18
Type
journal article
Language
en
Open access
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Neurological Disorders and Stroke (R01NS039951)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
Keywords
estrogen receptor beta, glucocorticoid receptor, central amygdala, anxiety-like behavior, hypothalamic-pituitary-adrenal axis, estradiol, corticosterone, stress reactivity, neuroendocrine function, anxiolytic effects
MeSH terms
Amygdala, Animals, Anxiety, Behavior, Animal, Female, Hypothalamo-Hypophyseal System, Immunohistochemistry, Neurosecretory Systems, Ovariectomy, Pituitary-Adrenal System, Receptors, Glucocorticoid, Stress, Psychological, Rats, Sprague-Dawley, Estradiol Congeners, Estrogen Receptor beta, Rats

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