Cited by 36Neuroscience and Neuropharmacology ResearchStress Responses and CortisolBipolar Disorder and Treatment

Chronic stress and lithium treatments alter hippocampal glutamate uptake and release in the rat and potentiate necrotic cellular death after oxygen and glucose deprivation

de Vasconcellos-Bittencourt, Ana Paula S., Vendite, Deusa Aparecida, Nassif, Melissa, Crema, Leonardo M., Frozza, Rudimar, Thomazi, Ana Paula, Nieto, Fabiane B., Wofchuk, Susana +3 more·2011·Neurochemical Research

Abstract

This study was undertaken to evaluate the effects of chronic variate stress and lithium treatment on glutamatergic activity and neuronal vulnerability of rat hippocampus. Male Wistar rats were simultaneously treated with lithium and submitted to a chronic variate stress protocol during 40 days, and afterwards the hippocampal glutamatergic uptake and release, measured in slices and synaptosomes, were evaluated. We observed an increased synaptosomal [(3)H]glutamate uptake and an increase in [(3)H]glutamate stimulated release in hippocampus of lithium-treated rats. Chronic stress increased basal [(3)H]glutamate release by synaptosomes, and decreased [(3)H]glutamate uptake in hippocampal slices. When evaluating cellular vulnerability, both stress and lithium increased cellular death after oxygen and glucose deprivation (OGD). We suggest that the manipulation of glutamatergic activity induced by stress may be in part responsible for the neuroendangerment observed after stress exposure, and that, in spite of the described neuroprotective effects of lithium, it increased the neuronal vulnerability after OGD.

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Crossref · 10.1007/s11064-011-0404-7

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Authors
de Vasconcellos-Bittencourt, A. P. S., Vendite, D. A., Nassif, M., Crema, L. M., Frozza, R., Thomazi, A. P., Nieto, F. B., Wofchuk, S., Salbego, C., da Rocha, E. R., & Dalmaz, C.
Affiliations
Universidade Federal do Rio Grande do Sul (BR)
Corresponding author
Thomazi, Ana Paula
Venue
Neurochemical Research
Published
2011-01-21
Volume
36
Issue
5
Pages
793-800
ISSN
  • 0364-3190 (ISSN-L)
  • 1573-6903
OpenAlex
W2040376279
Cited by
36
References
57
Citations by year
2026: 1 · 2025: 3 · 2024: 2 · 2023: 3 · 2022: 4 · 2021: 1 · 2019: 1 · 2018: 4 · 2017: 5 · 2015: 3 · 2014: 3 · 2013: 2 · 2012: 1
FWCI
1.19
Type
journal article
Language
en
Open access
closed
Locations
  • Neurochemical Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
Keywords
chronic stress, lithium, hippocampus, glutamate uptake, glutamate release, synaptosomes, oxygen-glucose deprivation, neuronal necrosis, neuroprotection, glutamatergic activity, neuronal vulnerability
MeSH terms
Animals, Hypoxia, Chronic Disease, Glucose, Hippocampus, L-Lactate Dehydrogenase, Male, Necrosis, Stress, Physiological, Cell Death, Rats, Wistar, Lithium Compounds, Glutamic Acid, Rats

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