Evidence map›Paper›PMID 9185558›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience1997

Recovery of neurofilament expression selectively in regenerating reticulospinal neurons.

A J Jacobs, G P Swain, J A Snedeker, D S Pijak, L J Gladstone, M E Selzer

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
1.2field-weighted citation impact, top 24% 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

50 citing papers in PubMed, 117 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

6 authors at 1 institution in 1 country.

A J JacobsDepartment of Neurology and David Mahoney Institute for Neurological Sciences, University of Pennsylvania Medical Center, Philadelphia, Pennsylvania 19104-4283, USA.
G P Swain
J A Snedeker
D S Pijak
L J Gladstone
M E Selzer
University of Pennsylvania · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007170 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI BRASS, LAWRENCE F · 1985 to 2022
$54.0M
ADA3: a novel target for HPV16 E6 oncoproteinR01CA094143 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI BAND, VIMLA · 2002 to 2006
$1.7M
REGENERATION IN THE SPINAL CORD--ROLE OF NEUROFILAMENTSR01NS014837 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI SELZER, MICHAEL EDGAR · 1986 to 2003
$1.4M
NCI NIH HHS R01 CA094143NIGMS NIH HHS 5-T32-GM07170NIGMS NIH HHS T32 GM007170NINDS NIH HHS NS14837NINDS NIH HHS R01 NS014837
6 · The paper itself

Abstract

During regeneration of lamprey spinal axons, growth cones lack filopodia and lamellipodia, contain little actin, and elongate much more slowly than do typical growth cones of embryonic neurons. Moreover, these regenerating growth cones are densely packed with neurofilaments (NFs). Therefore, after spinal hemisection the time course of changes in NF mRNA expression was correlated with the probability of regeneration for each of 18 identified pairs of reticulospinal neurons and 12 cytoarchitectonic groups of spinal projecting neurons. During the first 4 weeks after operation, NF message levels were reduced dramatically in all axotomized reticulospinal neurons, on the basis of semiquantitative in situ hybridization for the single lamprey NF subunit (NF-180). Thereafter, NF expression returned toward normal in neurons whose axons normally regenerate beyond the transection but remained depressed in poorly regenerating neurons. The recovery of NF expression in good regenerators was independent of axon growth across the lesion, because excision of a segment of spinal cord caudal to the transection site blocked regeneration but did not prevent the return of NF-180 mRNA. The early decrease in NF mRNA expression was not accompanied by a reduction in NF protein content. Thus the axotomy-induced loss of most of the axonal volume resulted in a reduced demand for NF rather than a reduction in volume-specific NF synthesis. We conclude that the secondary upregulation of NF message during axonal regeneration in the lamprey CNS may be part of an intrinsic growth program executed only in neurons with a strong propensity for regeneration.

Indexed as

Nerve RegenerationAnimalsAxonsDenervationLampreysNeurofilament ProteinsNeuronsReticular FormationRNA, MessengerSpinal CordNeurofilament ProteinsRNA, Messenger

Identifiers

PMID9185558
PMCPMC6573315
OpenAlexW2100045176

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.