Evidence map›Paper›PMID 24867427›Full record

ArticleNature communications2014

Pathological α-synuclein impairs adult-born granule cell development and functional integration in the olfactory bulb.

Johanna Neuner, Saak V Ovsepian, Mario Dorostkar, Severin Filser, Aayush Gupta, Stylianos Michalakis, Martin Biel, Jochen Herms

Open access · hybridAbstract read
In one paragraph

Article in Nature communications, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

18 citing papers in PubMed, 29 citations in OpenAlex.

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  8. Structural Plasticity of the Hippocampus in Neurodegenerative Diseases.International journal of molecular sciences · 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 2 institutions in 1 country.

Johanna NeunerCenter for Neuropathology and Prion Research, Department for Translationsal Brain Research, Ludwig Maximilian University, Feodor-Lynen-Strassee 23, Munich 81377, Germany.
Saak V OvsepianGerman Center for Neurodegeneratione Diseases (DZNE), Department for Translational Brain Research, Feodor-Lynen-Strasse 23, Munich 81377, Germany.
Mario DorostkarCenter for Neuropathology and Prion Research, Department for Translationsal Brain Research, Ludwig Maximilian University, Feodor-Lynen-Strassee 23, Munich 81377, Germany.
Severin FilserGerman Center for Neurodegeneratione Diseases (DZNE), Department for Translational Brain Research, Feodor-Lynen-Strasse 23, Munich 81377, Germany.
Aayush GuptaCenter for Neuropathology and Prion Research, Department for Translationsal Brain Research, Ludwig Maximilian University, Feodor-Lynen-Strassee 23, Munich 81377, Germany.
Stylianos MichalakisCenter for Integrated Protein Science Munich, (CiPSM) and Department of Pharmacy-Center for Drug Research, Ludwig Maximilian University, Butenandtstrasse 5-13, Munich 81377, Germany.
Martin BielCenter for Integrated Protein Science Munich, (CiPSM) and Department of Pharmacy-Center for Drug Research, Ludwig Maximilian University, Butenandtstrasse 5-13, Munich 81377, Germany.
Jochen Herms1] German Center for Neurodegeneratione Diseases (DZNE), Department for Translational Brain Research, Feodor-Lynen-Strasse 23, Munich 81377, Germany [2] Munich Cluster of Systems Neurology (SyNergy), Ludwig Maximilian University, Feodor-Lynen-Strasse 23, Munich 81377, Germany.
Ludwig-Maximilians-Universität München · DEGerman Center for Neurodegenerative Diseases · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although the role of noxious α-synuclein (α-SYN) in the degeneration of midbrain dopaminergic neurons and associated motor deficits of Parkinson's disease is recognized, its impact on non-motor brain circuits and related symptoms remains elusive. Through combining in vivo two-photon imaging with time-coded labelling of neurons in the olfactory bulb of A30P α-SYN transgenic mice, we show impaired growth and branching of dendrites of adult-born granule cells (GCs), with reduced gain and plasticity of dendritic spines. The spine impairments are especially pronounced during the critical phase of integration of new neurons into existing circuits. Functionally, retarded dendritic expansion translates into reduced electrical capacitance with enhanced intrinsic excitability and responsiveness of GCs to depolarizing inputs, while the spine loss correlates with decreased frequency of AMPA-mediated miniature EPSCs. Changes described here are expected to interfere with the functional integration and survival of new GCs into bulbar networks, contributing towards olfactory deficits and related behavioural impairments.

Indexed as

Agingalpha-SynucleinAnimalsDendritic SpinesExcitatory Postsynaptic PotentialsGABAergic NeuronsMaleMiceMice, TransgenicMutant ProteinsOlfactory BulbSurvival AnalysisSynapsesalpha-SynucleinMutant ProteinsSnca protein, mouse

Identifiers

PMID24867427
PMCPMC4050256
OpenAlexW2079150029

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.