Evidence map›Paper›PMID 11404420›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2001

Mice lacking tPA, uPA, or plasminogen genes showed delayed functional recovery after sciatic nerve crush.

L B Siconolfi, N W Seeds

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
2.5field-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

43 citing papers in PubMed, 124 citations in OpenAlex.

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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

2 authors at 1 institution in 1 country.

L B SiconolfiNeuroscience Program and Department of Biochemistry and Molecular Genetics, University of Colorado Health Sciences Center, Denver, Colorado 80262, USA.
N W Seeds
University of Colorado Health · US

Funding

BASIC NEUROSCIENCEST32NS007083 · NINDS · UNIVERSITY OF COLORADO DENVER · PI RIBERA, ANGELES BADELL · 1985 to 2011
$1.1M
IN VITRO BIOCHEMICAL DIFFERENTIATION OF NERVE CELLSR01NS009818 · NINDS · UNIVERSITY OF COLORADO DENVER · PI SEEDS, NICHOLAS W · 1985 to 1998
–
DEVELOPMENTAL NEUROBIOLOGY TRAININGT32HD007408 · NICHD · UNIVERSITY OF COLORADO DENVER · PI SEEDS, NICHOLAS W · 1993 to 1997
–
NICHD NIH HHS T32 HD007408NICHD NIH HHS T32-HD07408NINDS NIH HHS NS09818NINDS NIH HHS T32 NS007083NINDS NIH HHS T32-NS07083
6 · The paper itself

Abstract

Axonal outgrowth during peripheral nerve regeneration relies on the ability of growth cones to traverse through an environment that has been altered structurally and along a basal lamina sheath to reinnervate synaptic targets. To promote migration, growth cones secrete proteases that are thought to dissolve cell-cell and cell-matrix adhesions. These proteases include the plasminogen activators (PAs), tissue PA (tPA) and urokinase PA (uPA), and their substrate, plasminogen. PA expression and secretion are upregulated in regenerating mammalian sensory neurons in culture. After sciatic nerve crush in mice, there was an induction of PA mRNAs in the sensory neurons contributing to the crushed nerve and an upregulation of PA-dependent activity in crushed nerve compared with sham counterparts during nerve regeneration. To further assess the role of the PA system during peripheral nerve regeneration, PA-dependent activity as well as recovery of sensory and motor function in the injured hindlimb were assessed in wild-type, tPA, uPA, and plasminogen knock-out mice. Protease activity visualized by gel zymography showed that after nerve crush, the upregulation of PA activity in the tPA and uPA knock-out mice was delayed compared with wild-type mice. Recovery of sensory function was assessed by toe pinch, footpad prick, and the toe-spreading reflex. All knock-out mice demonstrated a significant delay in hindlimb response to these sensory stimuli compared with wild-type mice. For each modality tested, the uPA knock-out mice were the most dramatically affected, showing the longest delay to initiate a response. These studies clearly showed that PAs were necessary for timely functional recovery by regenerating peripheral nerves.

Indexed as

Recovery of FunctionAnimalsAxonsDisease Models, AnimalGAP-43 ProteinHindlimbMiceMice, KnockoutMotor ActivityNerve CrushNerve RegenerationNeurons, AfferentPain MeasurementPhysical StimulationPlasminogenReaction TimeGAP-43 ProteinPlasminogenRNA, MessengerTissue Plasminogen ActivatorUrokinase-Type Plasminogen Activator

Identifiers

PMID11404420
PMCPMC6762762
OpenAlexW1950899894

What OpenQuestion holds

Textmetadata
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.