Evidence map›Paper›PMID 36205407›Full record

ArticleEssays in biochemistry2022

The premetazoan ancestry of the synaptic toolkit and appearance of first neurons.

Jeffrey Colgren, Pawel Burkhardt

Abstract read
In one paragraph

Article in Essays in biochemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

11 citing papers in PubMed.

  1. Developing broad brains: the importance of an early introduction to evolutionary thinking in undergraduate neuroscience programs.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026
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  9. SNARE Proteins in Synaptic Vesicle Fusion.Advances in neurobiology · 2023
    Article
  10. The salamander blastema within the broader context of metazoan regeneration.Frontiers in cell and developmental biology · 2023
    Review
  11. Article
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

2 authors.

Jeffrey ColgrenSars International Centre for Marine Molecular Biology, University of Bergen, Norway.ORCID 0000-0003-3912-0926
Pawel BurkhardtSars International Centre for Marine Molecular Biology, University of Bergen, Norway.ORCID 0000-0001-9826-057X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neurons, especially when coupled with muscles, allow animals to interact with and navigate through their environment in ways unique to life on earth. Found in all major animal lineages except sponges and placozoans, nervous systems range widely in organization and complexity, with neurons possibly representing the most diverse cell-type. This diversity has led to much debate over the evolutionary origin of neurons as well as synapses, which allow for the directed transmission of information. The broad phylogenetic distribution of neurons and presence of many of the defining components outside of animals suggests an early origin of this cell type, potentially in the time between the first animal and the last common ancestor of extant animals. Here, we highlight the occurrence and function of key aspects of neurons outside of animals as well as recent findings from non-bilaterian animals in order to make predictions about when and how the first neuron(s) arose during animal evolution and their relationship to those found in extant lineages. With advancing technologies in single cell transcriptomics and proteomics as well as expanding functional techniques in non-bilaterian animals and the close relatives of animals, it is an exciting time to begin unraveling the complex evolutionary history of this fascinating animal cell type.

Indexed as

NeuronsPhylogenychoanoflagellatescnidariansctenophoresplacozoansspongessynapses

Identifiers

PMID36205407
PMCPMC9750855

What OpenQuestion holds

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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.