Evidence map›Paper›PMID 29936569›Full record

ArticleNeurochemical research2018

Transient Morphological Alterations in the Hippocampus After Pentylenetetrazole-Induced Seizures in Rats.

Dmitry S Vasilev, Natalia L Tumanova, Kira Kh Kim, Valeria V Lavrentyeva, Nera Y Lukomskaya, Igor A Zhuravin, Lev G Magazanik, Aleksey V Zaitsev

Abstract read
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In one paragraph

Article in Neurochemical research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.3field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 49 citations in OpenAlex.

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  16. Reaction of the Hippocampal Microglia to Hyperbaric Oxygen.Bulletin of experimental biology and medicine · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Dmitry S VasilevSechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, pr. Toreza 44, Saint Petersburg, Russia, 194223.
Natalia L TumanovaSechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, pr. Toreza 44, Saint Petersburg, Russia, 194223.
Kira Kh KimSechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, pr. Toreza 44, Saint Petersburg, Russia, 194223.
Valeria V LavrentyevaSechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, pr. Toreza 44, Saint Petersburg, Russia, 194223.
Nera Y LukomskayaSechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, pr. Toreza 44, Saint Petersburg, Russia, 194223.
Igor A ZhuravinSechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, pr. Toreza 44, Saint Petersburg, Russia, 194223.
Lev G MagazanikSechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, pr. Toreza 44, Saint Petersburg, Russia, 194223.
Aleksey V ZaitsevSechenov Institute of Evolutionary Physiology and Biochemistry of the Russian Academy of Sciences, pr. Toreza 44, Saint Petersburg, Russia, 194223. aleksey_zaitsev@mail.ru.ORCID http://orcid.org/0000-0002-4503-0647
Institute of Evolutionary Physiology and Biochemistry · RU

Funding

Russian Science Foundation 16-15-10202
6 · The paper itself

Abstract

The relationships between seizures, neuronal death, and epilepsy remain one of the most disputed questions in translational neuroscience. Although it is broadly accepted that prolonged and repeated seizures cause neuronal death and epileptogenesis, whether brief seizures can produce a mild but similar effect is controversial. In the present work, using a rat pentylenetetrazole (PTZ) model of seizures, we evaluated how a single episode of clonic-tonic seizures affected the viability of neurons in the hippocampus, the area of the brain most vulnerable to seizures, and morphological changes in the hippocampus up to 1 week after PTZ treatment (recovery period). The main findings of the study were: (1) PTZ-induced seizures caused the transient appearance of massively shrunken, hyperbasophilic, and hyperelectrondense (dark) cells but did not lead to detectable neuronal cell loss. These dark neurons were alive, suggesting that they could cope with seizure-related dysfunction. (2) Neuronal and biochemical alterations following seizures were observed for at least 1 week. The temporal dynamics of the appearance and disappearance of dark neurons differed in different zones of the hippocampus. (3) The numbers of cells with structural and functional abnormalities in the hippocampus after PTZ-induced seizures decreased in the following order: CA1 > CA3b,c > hilus > dentate gyrus. Neurons in the CA3a subarea were most resistant to PTZ-induced seizures. These results suggest that even a single seizure episode is a potent stressor of hippocampal neurons and that it can trigger complex neuroplastic changes in the hippocampus.

Indexed as

AnimalsAntigens, NuclearCaspase 3Cell DeathCell SurvivalExcitatory Amino Acid Transporter 1GABA Plasma Membrane Transport ProteinsHippocampusMaleNerve Tissue ProteinsNeuronsPentylenetetrazoleRats, WistarSeizuresAntigens, NuclearCasp3 protein, ratCaspase 3Excitatory Amino Acid Transporter 1GABA Plasma Membrane Transport ProteinsNerve Tissue ProteinsPentylenetetrazoleRbfox3 protein, ratSlc1a3 protein, ratSlc6a1 protein, ratAnimal model of epilepsyDark neuronEAAT1ExcitotoxicityHippocampusPentylenetetrazole

Identifiers

PMID29936569
OpenAlexW2810216264

What OpenQuestion holds

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Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.