Cited by 125Estrogen and related hormone effectsNeuroscience and Neuropharmacology ResearchNeuroinflammation and Neurodegeneration Mechanisms

Molecular mechanisms and cellular events involved in the neuroprotective actions of estradiol. analysis of sex differences

Open access
Azcoitia, Iñigo, Barreto, George E., Garcia-Segura, Luis M.·2019·Frontiers in Neuroendocrinology

Abstract

Estradiol, either from peripheral or central origin, activates multiple molecular neuroprotective and neuroreparative responses that, being mediated by estrogen receptors or by estrogen receptor independent mechanisms, are initiated at the membrane, the cytoplasm or the cell nucleus of neural cells. Estrogen-dependent signaling regulates a variety of cellular events, such as intracellular Ca 2+ levels, mitochondrial respiratory capacity, ATP production, mitochondrial membrane potential, autophagy and apoptosis. In turn, these molecular and cellular actions of estradiol are integrated by neurons and non-neuronal cells to generate different tissue protective responses, decreasing blood-brain barrier permeability, oxidative stress, neuroinflammation and excitotoxicity and promoting synaptic plasticity, axonal growth, neurogenesis, remyelination and neuroregeneration. Recent findings indicate that the neuroprotective and neuroreparative actions of estradiol are different in males and females and further research is necessary to fully elucidate the causes for this sex difference.

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Crossref · 10.1016/j.yfrne.2019.100787

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Authors
Azcoitia, I., Barreto, G. E., & Garcia-Segura, L. M.
Affiliations
University of Limerick (IE)
Venue
Frontiers in Neuroendocrinology
Publisher
Elsevier BV
Published
2019-10
Volume
55
Pages
100787
ISSN
0091-3022 (ISSN-L)
OpenAlex
W2972443643
Cited by
125
References
273
Citations by year
2026: 15 · 2025: 18 · 2024: 10 · 2023: 21 · 2022: 20 · 2021: 20 · 2020: 21
FWCI
2.05
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Neuroendocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • Docta Complutense (Universidad Complutense de Madrid) (submittedVersion, cc-by)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, cc-by)
Funders
  • Federación Española de Enfermedades Raras
  • Agencia Estatal de Investigación (BFU2017-82754-R)
  • Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
estradiol, neuroprotection, estrogen receptor, sex differences, intracellular calcium, mitochondrial function, autophagy, apoptosis, blood-brain barrier permeability, oxidative stress, neuroinflammation, excitotoxicity, synaptic plasticity, axon growth, neurogenesis, remyelination, nerve regeneration
MeSH terms
Neuroprotection, Animals, Autophagy, Estradiol, Female, Humans, Inflammation, Male, Neuronal Plasticity, Receptors, Estrogen, Sex Characteristics, Signal Transduction, Apoptosis, Neurogenesis

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