Evidence map›Paper›PMID 21672919›Full record

ArticleHuman molecular genetics2011

Temporal requirement for high SMN expression in SMA mice.

Thanh T Le, Vicki L McGovern, Isaac E Alwine, Xueyong Wang, Aurelie Massoni-Laporte, Mark M Rich, Arthur H M Burghes

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Human molecular genetics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01736553 (Spinal Muscular Atrophy), which is not on this map. Cited by 84 papers.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed
8.2field-weighted citation impact, top 2% 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.

NCT01736553 completednot on this mapstarted 2012, after this paper: background citation

Spinal Muscular Atrophy (SMA) Biomarkers in the Immediate Postnatal Period of Development

TypeobservationalSponsorOhio State UniversityRan2012 to 2015Enrolled53ConditionsSpinal Muscular Atrophy (SMA)
3 · Its place in the literature

Who cites it

84 citing papers in PubMed, 130 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Neurodegenerative spliceosomopathies.Frontiers in cell and developmental biology · 2026
    Review
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24 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

7 authors at 2 institutions in 1 country.

Thanh T LeDepartment of Molecular and Cellular Biochemistry, The Ohio State University, Columbus, OH 43210, USA.
Vicki L McGovern
Isaac E Alwine
Xueyong Wang
Aurelie Massoni-Laporte
Mark M Rich
Arthur H M Burghes
The Ohio State University · USWright State University · US

Funding

University of Iowa Clinical and Translational Science Program (TL1)UL1RR025755 · NCRR · OHIO STATE UNIVERSITY · PI JACKSON, REBECCA D · 2008 to 2011
$26.3M
Ohio State Neuroscience Centr CoreP30NS045758 · NINDS · OHIO STATE UNIVERSITY · PI OBRIETAN, KARL H · 2004 to 2015
$7.7M
SURVIVAL MOTOR NEURON GENES IN SPINAL MUSCULAR ATROPHYR01NS038650 · NINDS · OHIO STATE UNIVERSITY · PI BURGHES, ARTHUR H. M. · 1999 to 2011
$3.8M
Therapy for Spinal Muscular AtrophyR01HD060586 · NICHD · OHIO STATE UNIVERSITY · PI BURGHES, ARTHUR H. M. · 2010 to 2021
$3.7M
Delivery of therapeutic genes in motor neuron diseaseRC2NS069476 · NINDS · OHIO STATE UNIVERSITY · PI BURGHES, ARTHUR H. M., CLEVELAND, DON W · 2009 to 2010
$3.4M
NCRR NIH HHS UL1 RR025755NICHD NIH HHS R01 HD060586NINDS NIH HHS NS069476NINDS NIH HHS P30 NS045758NINDS NIH HHS P30NS045758NINDS NIH HHS R01 NS038650NINDS NIH HHS RC2 NS069476
6 · The paper itself

Abstract

Spinal muscular atrophy (SMA) is caused by loss of the survival motor neuron 1 gene (SMN1) and retention of the SMN2 gene, resulting in reduced SMN. SMA mice can be rescued with high expression of SMN in neurons, but when is this high expression required? We have developed a SMA mouse with inducible expression of SMN to address the temporal requirement for high SMN expression. Both embryonic and early postnatal induction of SMN resulted in a dramatic increase in survival with some mice living greater than 200 days. The mice had no marked motor deficits and neuromuscular junction (NMJ) function was near normal thus it appears that induction of SMN in postnatal SMA mice rescues motor function. Early postnatal SMN induction, followed by a 1-month removal of induction at 28 days of age, resulted in no morphological or electrophysiological abnormalities at the NMJ and no overt motor phenotype. Upon removal of SMN induction, five mice survived for just over 1 month and two female mice have survived past 8 months of age. We suggest that there is a postnatal period of time when high SMN levels are required. Furthermore, two copies of SMN2 provide the minimal amount of SMN necessary to maintain survival during adulthood. Finally, in the course of SMA, early induction of SMN is most efficacious.

Indexed as

Gene ExpressionAnimalsDisease Models, AnimalFemaleHumansMaleMiceMice, TransgenicMotor ActivityMuscular Atrophy, SpinalSurvival of Motor Neuron 1 ProteinSurvival of Motor Neuron 2 ProteinSMN2 protein, humanSurvival of Motor Neuron 1 ProteinSurvival of Motor Neuron 2 Protein

Identifiers

PMID21672919
PMCPMC3159555
OpenAlexW2117278447

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.