Evidence map›Paper›PMID 24698273›Full record

ArticleNeuron2014

V1 and v2b interneurons secure the alternating flexor-extensor motor activity mice require for limbed locomotion.

Jingming Zhang, Guillermo M Lanuza, Olivier Britz, Zhi Wang, Valerie C Siembab, Ying Zhang, Tomoko Velasquez, Francisco J Alvarez, Eric Frank, Martyn Goulding

Open access · bronzeAbstract read
In one paragraph

Article in Neuron, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 128 papers.

0numbers the graph read from it
0cells of the map it votes in
128citing papers in PubMed
9.1field-weighted citation impact, top 1% 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

128 citing papers in PubMed, 241 citations in OpenAlex.

  1. Gene expression programs underlying spinal commissural neuron differentiation and axon growth across the midline.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  12. Inhibitory circuits control leg movements duringbioRxiv : the preprint server for biology · 2025
    Article
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  15. Review
  16. V2b Neurons Act via Multiple Targets to Produce in Phase Inhibition during Locomotion.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  17. Sensory Feedback and the Dynamic Control of Movement.Annual review of neuroscience · 2025
    Review
  18. Article
  19. Article
  20. Article

68 more citing papers are in PubMed but not listed here.

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

10 authors at 4 institutions in 2 countries.

Jingming ZhangMolecular Neurobiology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
Guillermo M LanuzaMolecular Neurobiology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA; Fundación Instituto Leloir, IIBBA-CONICET, Buenos Aires 1405, Argentina.
Olivier BritzMolecular Neurobiology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
Zhi WangDepartment of Molecular Physiology and Pharmacology, Tufts University School of Medicine, Boston, MA 02111, USA.
Valerie C SiembabDepartment of Neurosciences, Cell Biology, and Physiology, Wright State University, Dayton, OH 45435, USA.
Ying ZhangMolecular Neurobiology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
Tomoko VelasquezMolecular Neurobiology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
Francisco J AlvarezDepartment of Neurosciences, Cell Biology, and Physiology, Wright State University, Dayton, OH 45435, USA; Department of Physiology, Emory University, Atlanta, GA 30322, USA.
Eric FrankDepartment of Molecular Physiology and Pharmacology, Tufts University School of Medicine, Boston, MA 02111, USA.
Martyn GouldingMolecular Neurobiology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA. Electronic address: goulding@salk.edu.
Salk Institute for Biological Studies · USTufts University · USEmory University · USWright State University · US

Funding

XENOPUS NOTCH AND NEURONAL DETERMINATIONP01NS031249 · NINDS · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI LEMKE, GREG E · 1993 to 2011
$16.6M
Synaptic Function: Effects of the Nerve Injury, Repair, and Altered ActivityP01NS057228 · NINDS · WRIGHT STATE UNIVERSITY · PI COPE, TIMOTHY C · 2007 to 2017
$9.1M
DEVELOPMENT OF SYNAPTIC INPUTS ON SPINAL INTERNEURONSR01NS047357 · NINDS · WRIGHT STATE UNIVERSITY · PI ALVAREZ, FRANCISCO J · 2004 to 2025
$6.4M
Functional Analysis of Inhibitory Spinal Cord InterneuronsR37NS037075 · NINDS · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI GOULDING, MARTYN D · 2006 to 2012
$3.6M
Spinal circuits for mechanical itch and light touchR01NS080586 · NINDS · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI GOULDING, MARTYN D · 2013 to 2018
$2.8M
Development of synaptic inputs on spinal interneuronsR56NS047357 · NINDS · EMORY UNIVERSITY · PI ALVAREZ, FRANCISCO J · 2013 to 2013
$390k
NINDS NIH HHS P01 NS031249NINDS NIH HHS P01-NS031249NINDS NIH HHS P01 NS057228NINDS NIH HHS R01 NS047357NINDS NIH HHS R01-NS047357NINDS NIH HHS R01 NS080586NINDS NIH HHS R01-NS080586NINDS NIH HHS R37 NS037075NINDS NIH HHS R37-NS037075NINDS NIH HHS R56 NS047357
6 · The paper itself

Abstract

Reciprocal activation of flexor and extensor muscles constitutes the fundamental mechanism that tetrapod vertebrates use for locomotion and limb-driven reflex behaviors. This aspect of motor coordination is controlled by inhibitory neurons in the spinal cord; however, the identity of the spinal interneurons that serve this function is not known. Here, we show that the production of an alternating flexor-extensor motor rhythm depends on the composite activities of two classes of ventrally located inhibitory neurons, V1 and V2b interneurons (INs). Abrogating V1 and V2b IN-derived neurotransmission in the isolated spinal cord results in a synchronous pattern of L2 flexor-related and L5 extensor-related locomotor activity. Mice lacking V1 and V2b inhibition are unable to articulate their limb joints and display marked deficits in limb-driven reflex movements. Taken together, these findings identify V1- and V2b-derived neurons as the core interneuronal components of the limb central pattern generator (CPG) that coordinate flexor-extensor motor activity.

Indexed as

Action PotentialsAnimalsAnimals, NewbornCholera ToxinEmbryo, MammalianExtremitiesFunctional LateralityInterneuronsLocomotionMiceMice, TransgenicMotor ActivityMuscle, SkeletalMutationNeural InhibitionNeurotransmitter AgentsCholera ToxinNeurotransmitter Agents

Identifiers

PMID24698273
PMCPMC4096991
OpenAlexW2080030366

What OpenQuestion holds

Textmetadata
LicenceTDM
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.