Evidence map›Paper›PMID 30643018›Full record

ArticleThe EMBO journal2019

An increase in neural stem cells and olfactory bulb adult neurogenesis improves discrimination of highly similar odorants.

Sara Bragado Alonso, Janine K Reinert, Nicolas Marichal, Simone Massalini, Benedikt Berninger, Thomas Kuner, Federico Calegari

Open access · hybridAbstract read
In one paragraph

Article in The EMBO journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
5.3field-weighted citation impact, top 3% 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

39 citing papers in PubMed, 71 citations in OpenAlex.

  1. Cytoplasmic cyclin D1 modulates brain cortex development.Cellular and molecular life sciences : CMLS · 2026
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  5. Therapeutic modulation of neurogenesis to improve hippocampal plasticity and cognition in aging and Alzheimer's disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
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  16. Olfactory neurogenesis and its role in fear memory modulation.Frontiers in behavioral neuroscience · 2023
    Review
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  18. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Sara Bragado AlonsoCRTD Center for Regenerative Therapies Dresden, School of Medicine, TU Dresden, Dresden, Germany.
Janine K ReinertDepartment of Functional Neuroanatomy, Institute for Anatomy and Cell Biology, Heidelberg University, Heidelberg, Germany.
Nicolas MarichalInstitute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany.
Simone MassaliniCRTD Center for Regenerative Therapies Dresden, School of Medicine, TU Dresden, Dresden, Germany.
Benedikt BerningerInstitute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany.ORCID 0000-0003-2652-2782
Thomas KunerDepartment of Functional Neuroanatomy, Institute for Anatomy and Cell Biology, Heidelberg University, Heidelberg, Germany.
Federico CalegariCRTD Center for Regenerative Therapies Dresden, School of Medicine, TU Dresden, Dresden, Germany federico.calegari@tu-dresden.de.ORCID 0000-0002-3703-2802
Technische Universität Dresden · DEHeidelberg University · DEKing's College London · GB

Funding

Medical Research Council MR/N026063/1
6 · The paper itself

Abstract

Adult neurogenesis is involved in cognitive performance but studies that manipulated this process to improve brain function are scarce. Here, we characterized a genetic mouse model in which neural stem cells (NSC) of the subventricular zone (SVZ) were temporarily expanded by conditional expression of the cell cycle regulators Cdk4/cyclinD1, thus increasing neurogenesis. We found that supernumerary neurons matured and integrated in the olfactory bulb similarly to physiologically generated newborn neurons displaying a correct expression of molecular markers, morphology and electrophysiological activity. Olfactory performance upon increased neurogenesis was unchanged when mice were tested on relatively easy tasks using distinct odor stimuli. In contrast, intriguingly, increasing neurogenesis improved the discrimination ability of mice when challenged with a difficult task using mixtures of highly similar odorants. Together, our study provides a mammalian model to control the expansion of somatic stem cells that can in principle be applied to any tissue for basic research and models of therapy. By applying this to NSC of the SVZ, we highlighted the importance of adult neurogenesis to specifically improve performance in a challenging olfactory task.

Indexed as

Discrimination LearningAnimalsCyclin D1Cyclin-Dependent Kinase 4Disease Models, AnimalMaleMiceMice, TransgenicNeural Stem CellsNeurogenesisOdorantsOlfactory BulbCcnd1 protein, mouseCdk4 protein, mouseCyclin D1Cyclin-Dependent Kinase 4adult neurogenesisneural stem cellsodor discrimination

Identifiers

PMID30643018
PMCPMC6418468
OpenAlexW2908799316

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.