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Estrogen Receptors Modulation of Anxiety-Like Behavior.
1Colorado State University, Fort Collins, CO, United States.
Vitamins and Hormones
|January 8, 2017
Summary
Estrogen
Area of Science:
- Neuroendocrinology
- Behavioral Neuroscience
- Molecular Psychiatry
Background:
- Estrogens significantly influence anxiety in humans and rodents, but their effects can be anxiogenic or anxiolytic.
- Discrepancies in research findings are attributed to the distinct roles of specific estrogen receptor (ER) subtypes.
Purpose of the Study:
- To review the differential effects of estrogen receptor subtypes (ERα, ERβ, and GPR30) on anxiety and anxiety-like behaviors.
- To elucidate the neurobiological mechanisms underlying estrogen's influence on emotional responses.
Main Methods:
- Review of existing literature on estrogen receptor subtypes and their effects on anxiety.
- Focus on the hypothalamic-pituitary-adrenal (HPA) axis, oxytocinergic, and serotonergic systems.
Main Results:
- Estrogen Receptor Alpha (ERα) generally exhibits anxiogenic effects.
- Estrogen Receptor Beta (ERβ) typically demonstrates anxiolytic effects.
- G-protein-coupled estrogen receptor (GPR30) shows variable effects, increasing or decreasing anxiety-like behavior.
Conclusions:
- The complex impact of estrogens on anxiety arises from the interplay of ERα, ERβ, and GPR30.
- These receptors modulate emotional responses via the HPA axis and neurotransmitter systems (oxytocin, serotonin).
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