Evidence map›Paper›PMID 29950557›Full record

ArticleCell death & disease2018

GABA promotes survival and axonal regeneration in identifiable descending neurons after spinal cord injury in larval lampreys.

Daniel Romaus-Sanjurjo, Rocío Ledo-García, Blanca Fernández-López, Kendra Hanslik, Jennifer R Morgan, Antón Barreiro-Iglesias, María Celina Rodicio

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 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
2.4field-weighted citation impact, top 11% 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, 50 citations in OpenAlex.

  1. Article
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  4. Biomimicry ofBiomimetics (Basel, Switzerland) · 2025
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  5. Structural Basis of GABAAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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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.

Daniel Romaus-SanjurjoDepartment of Functional Biology, CIBUS, Faculty of Biology, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
Rocío Ledo-GarcíaDepartment of Functional Biology, CIBUS, Faculty of Biology, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
Blanca Fernández-LópezDepartment of Functional Biology, CIBUS, Faculty of Biology, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
Kendra HanslikEugene Bell Center for Regenerative Biology and Tissue Engineering; Marine Biological Laboratory, 7 MBL St., Woods Hole, MA, 02543, USA.
Jennifer R MorganEugene Bell Center for Regenerative Biology and Tissue Engineering; Marine Biological Laboratory, 7 MBL St., Woods Hole, MA, 02543, USA.
Antón Barreiro-IglesiasDepartment of Functional Biology, CIBUS, Faculty of Biology, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain. anton.barreiro@usc.es.ORCID 0000-0002-7507-080X
María Celina RodicioDepartment of Functional Biology, CIBUS, Faculty of Biology, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain. mcelina.rodicio@usc.es.
Universidade de Santiago de Compostela · ESMarine Biological Laboratory · USUniversity of Helsinki · FI

Funding

Ministerio de Economía y Competitividad (Ministry of Economy and Competitiveness) BFU2014-56300-P
6 · The paper itself

Abstract

The poor regenerative capacity of descending neurons is one of the main causes of the lack of recovery after spinal cord injury (SCI). Thus, it is of crucial importance to find ways to promote axonal regeneration. In addition, the prevention of retrograde degeneration leading to the atrophy/death of descending neurons is an obvious prerequisite to activate axonal regeneration. Lampreys show an amazing regenerative capacity after SCI. Recent histological work in lampreys suggested that GABA, which is massively released after a SCI, could promote the survival of descending neurons. Here, we aimed to study if GABA, acting through GABAB receptors, promotes the survival and axonal regeneration of descending neurons of larval sea lampreys after a complete SCI. First, we used in situ hybridization to confirm that identifiable descending neurons of late-stage larvae express the gabab1 subunit of the GABAB receptor. We also observed an acute increase in the expression of this subunit in descending neurons after SCI, which further supported the possible role of GABA and GABAB receptors in promoting the survival and regeneration of these neurons. So, we performed gain and loss of function experiments to confirm this hypothesis. Treatments with GABA and baclofen (GABAB agonist) significantly reduced caspase activation in descending neurons 2 weeks after a complete SCI. Long-term treatments with GABOB (a GABA analogue) and baclofen significantly promoted axonal regeneration of descending neurons after SCI. These data indicate that GABAergic signalling through GABAB receptors promotes the survival and regeneration of descending neurons after SCI. Finally, we used morpholinos against the gabab1 subunit to knockdown the expression of the GABAB receptor in descending neurons. Long-term morpholino treatments caused a significant inhibition of axonal regeneration. This shows that endogenous GABA promotes axonal regeneration after a complete SCI in lampreys by activating GABAB receptors.

Indexed as

AnimalsAxonsBaclofenCaspasesCell SurvivalEnzyme Activationgamma-Aminobutyric AcidLampreysLarvaMorpholinosNerve RegenerationProtein SubunitsReceptors, GABASignal TransductionSpinal Cord Injuries4-amino-3-hydroxybutyric acidBaclofenCaspasesgamma-Aminobutyric AcidMorpholinosProtein SubunitsReceptors, GABA

Identifiers

PMID29950557
PMCPMC6021415
OpenAlexW2949440300

What OpenQuestion holds

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LicenceCC BY
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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.