Cited by 699Stress Responses and CortisolTreatment of Major DepressionNeuroscience and Neuropharmacology Research

The possibility of neurotoxicity in the hippocampus in major depression: a primer on neuron death

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Sapolsky, Robert M·2000·Biological Psychiatry

Abstract

A number of studies indicate that prolonged, major depression is associated with a selective loss of hippocampal volume that persists long after the depression has resolved. This review is prompted by two ideas. The first is that overt neuron loss may be a contributing factor to the decrease in hippocampal volume. As such, the first half of this article reviews current knowledge about how hippocampal neurons die during insults, focusing on issues related to the trafficking of glutamate and calcium, glutamate receptor subtypes, oxygen radical generation, programmed cell death, and neuronal defenses. This is meant to orient the reader toward the biology that is likely to underlie any such instances of neuron loss in major depression. The second idea is that glucocorticoids, the adrenal steroids secreted during stress, may play a contributing role to any such neuron loss. The subtypes of depression associated with the hippocampal atrophy typically involve significant hypersecretion of glucocorticoids, and the steroid has a variety of adverse effects in the hippocampus, including causing overt neuron loss. The second half of this article reviews the steps in this cascade of hippocampal neuron death that are regulated by glucocorticoids.

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Crossref · 10.1016/s0006-3223(00)00971-9

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  • Many health practitioners in primary and secondary care do not routinely enquire about intimate partner violence in routine health care consultations, nor do they all know how to respond safely to disclosures.

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Authors
Sapolsky, R. M.
Affiliations
Stanford Medicine (US)
Corresponding author
Sapolsky, Robert M
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2000-10
Volume
48
Issue
8
Pages
755-765
ISSN
0006-3223 (ISSN-L)
OpenAlex
W1995671210
Cited by
699
References
86
Citations by year
2026: 7 · 2025: 14 · 2024: 12 · 2023: 14 · 2022: 20 · 2021: 23 · 2020: 21 · 2019: 15 · 2018: 25 · 2017: 24 · 2016: 25 · 2015: 32 · 2014: 34 · 2013: 25 · 2012: 36
FWCI
9.39
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
major depressive disorder, hippocampal neurotoxicity, neuronal cell death, hippocampal atrophy, glutamate, calcium signaling, glutamate receptor subtypes, oxygen free radicals, programmed cell death, glucocorticoids
MeSH terms
Calcium, Major Depressive Disorder, Glucocorticoids, Hippocampus, Humans, Neurons, Synapses, Cell Death, Receptors, Glutamate, Glutamic Acid

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