Evidence map›Paper›PMID 22314886›Full record

ArticleThe Journal of comparative neurology2012

Neuroprotective effects of testosterone on motoneuron and muscle morphology following spinal cord injury.

James S Byers, Anna L Huguenard, Dulanji Kuruppu, Nai-Kui Liu, Xiao-Ming Xu, Dale R Sengelaub

Open access · greenAbstract read
In one paragraph

Article in The Journal of comparative neurology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
2.6field-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

57 citing papers in PubMed, 74 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 2 institutions in 1 country.

James S ByersProgram in Neuroscience and Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana 47405, USA.
Anna L Huguenard
Dulanji Kuruppu
Nai-Kui Liu
Xiao-Ming Xu
Dale R Sengelaub
Indiana University Bloomington · USIndiana University School of Medicine

Funding

Reprogramming reactive glial cells into functional new neurons after SCIR01NS111776 · NINDS · INDIANA UNIVERSITY INDIANAPOLIS · PI WU, WEI, ZHANG, CHUN-LI · 2020 to 2024
$2.4M
PKC inhibition-mediated spinal cord regenerationR01NS052290 · NINDS · UNIVERSITY OF LOUISVILLE · PI XU, XIAO-MING · 2005 to 2009
$1.8M
Role of phospholipase A2 in spinal cord secondary injuryR01NS059622 · NINDS · INDIANA UNIVERSITY INDIANAPOLIS · PI XU, XIAO-MING · 2009 to 2013
$1.6M
NINDS NIH HHS NS052290NINDS NIH HHS NS059622NINDS NIH HHS R01 NS052290NINDS NIH HHS R01 NS059622NINDS NIH HHS R01 NS111776
6 · The paper itself

Abstract

Treatment with testosterone is neuroprotective/neurotherapeutic after a variety of motoneuron injuries. Here we assessed whether testosterone might have similar beneficial effects after spinal cord injury (SCI). Young adult female rats received either sham or T9 spinal cord contusion injuries and were implanted with blank or testosterone-filled Silastic capsules. Four weeks later, motoneurons innervating the vastus lateralis muscle of the quadriceps were labeled with cholera toxin-conjugated horseradish peroxidase, and dendritic arbors were reconstructed in three dimensions. Soma volume, motoneuron number, lesion volume, and tissue sparing were also assessed, as were muscle weight, fiber cross-sectional area, and motor endplate size and density. Contusion injury resulted in large lesions, with no significant differences in lesion volume, percent total volume of lesion, or spared white or gray matter between SCI groups. SCI with or without testosterone treatment also had no effect on the number or soma volume of quadriceps motoneurons. However, SCI resulted in a decrease in dendritic length of quadriceps motoneurons in untreated animals, and this decrease was completely prevented by treatment with testosterone. Similarly, the vastus lateralis muscle weights and fiber cross-sectional areas of untreated SCI animals were smaller than those of sham-surgery controls, and these reductions were both prevented by testosterone treatment. No effects on motor endplate area or density were observed across treatment groups. These findings suggest that regressive changes in motoneuron and muscle morphology seen after SCI can be prevented by testosterone treatment, further supporting a role for testosterone as a neurotherapeutic agent in the injured nervous system.

Indexed as

AnimalsDisease Models, AnimalFemaleMotor NeuronsMuscle, SkeletalMuscular AtrophyNeuroprotective AgentsRatsRats, Sprague-DawleySpinal Cord InjuriesTestosteroneNeuroprotective AgentsTestosterone

Identifiers

PMID22314886
PMCPMC3960947
OpenAlexW1968588589

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.