Evidence map›Paper›PMID 21710252›Full record

ArticleCellular and molecular neurobiology2012

Histamine receptor expression, hippocampal plasticity and ammonia in histidine decarboxylase knockout mice.

Aisa Chepkova, Evgenij Yanovsky, Regis Parmentier, Hiroshi Ohtsu, Helmut L Haas, Jian-Sheng Lin, Olga A Sergeeva

Open access · greenAbstract read
In one paragraph

Article in Cellular and molecular neurobiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 27% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
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  5. Review
  6. Article
  7. Article
  8. The Systemic Administration of the Histamine HFrontiers in neuroscience · 2019
    Article
  9. Article
  10. Review
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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

7 authors at 3 institutions in 3 countries.

Aisa ChepkovaDepartment of Neurophysiology, Heinrich-Heine-Universität, 40001, Düsseldorf, Germany.
Evgenij Yanovsky
Regis Parmentier
Hiroshi Ohtsu
Helmut L Haas
Jian-Sheng Lin
Olga A Sergeeva
Heinrich Heine University Düsseldorf · DEInserm · FRTohoku University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Genetic ablation of the histamine producing enzyme histidine decarboxylase (HDC) leads to alteration in exploratory behaviour and hippocampus-dependent learning. We investigated how brain histamine deficiency in HDC knockout mice (HDC KO) affects hippocampal excitability, synaptic plasticity, and the expression of histamine receptors. No significant alterations in: basal synaptic transmission, long-term potentiation (LTP) in the Schaffer collateral synapses, histamine-induced transient changes in the CA1 pyramidal cell excitability, and the expression of H1 and H2 receptor mRNAs were found in hippocampal slices from HDC KO mice. However, when compared to WT mice, HDC KO mice demonstrated: 1. a stronger enhancement of LTP by histamine, 2. a stronger impairment of LTP by ammonia, 3. no long-lasting potentiation of population spikes by histamine, 4. a decreased expression of H3 receptor mRNA, and 5. less potentiation of population spikes by H3 receptor agonism. Parallel measurements in the hypothalamic tuberomamillary nucleus, the origin of neuronal histamine, demonstrated an increased expression of H3 receptors in HDC KO mice without any changes in the spontaneous firing of "histaminergic" neurons without histamine and their responses to the H3 receptor agonist (R)-α-methylhistamine. We conclude that the absence of neuronal histamine results in subtle changes in hippocampal synaptic transmission and plasticity associated with alteration in the expression of H3 receptors.

Indexed as

AmmoniaAnimalsGene ExpressionHippocampusHistamineHistamine AgonistsHistidine DecarboxylaseMaleMethylhistaminesMiceMice, KnockoutNeuronal PlasticityReceptors, HistamineReceptors, Histamine H3Synaptic Transmissionalpha-methylhistamineAmmoniaHistamineHistamine AgonistsHistidine DecarboxylaseMethylhistaminesReceptors, HistamineReceptors, Histamine H3

Identifiers

PMID21710252
PMCPMC11498542
OpenAlexW2141634144

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.