Evidence map›Paper›PMID 20233748›Full record

ArticleHuman molecular genetics2010

Functional muscle analysis of the Tcap knockout mouse.

C D Markert, M P Meaney, K A Voelker, R W Grange, H W Dalley, J K Cann, M Ahmed, B Bishwokarma, S J Walker, S X Yu and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Human molecular genetics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

32 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. EctomesenchymalFrontiers in genetics · 2023
    Article
  8. Article
  9. Article
  10. Frontiers in cell and developmental biology · 2022
    Article
  11. Article
  12. Article
  13. Review
  14. The Role of Z-disc Proteins in Myopathy and Cardiomyopathy.International journal of molecular sciences · 2021
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Overview of the Muscle Cytoskeleton.Comprehensive Physiology · 2017
    Review
  20. Article
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

14 authors at 6 institutions in 1 country.

C D MarkertDepartment of Neurology, Wake Forest University, Winston-Salem, NC 27101, USA.
M P Meaney
K A Voelker
R W Grange
H W Dalley
J K Cann
M Ahmed
B Bishwokarma
S J Walker
S X Yu
M Brown
M W Lawlor
A H Beggs
M K Childers
Virginia Tech · USForest Institute · USWake Forest University · USHarvard University · USIngenious Targeting Laboratory (United States) · USUniversity of Missouri · US

Funding

Progenitor Cells inHuman Skeletal MuscleP50NS040828 · NINDS · BOSTON CHILDREN'S HOSPITAL · PI KUNKEL, LOUIS M · 2008 to 2011
$5.9M
SARCOMERIC PROTEINS IN NORMAL AND DISEASED MUSCLER01AR044345 · NIAMS · CHILDREN'S HOSPITAL BOSTON · PI BEGGS, ALAN H. · 1997 to 2017
$5.3M
NIAMS NIH HHS R01 AR044345NINDS NIH HHS P50 NS040828
6 · The paper itself

Abstract

Autosomal recessive limb-girdle muscular dystrophy type 2G (LGMD2G) is an adult-onset myopathy characterized by distal lower limb weakness, calf hypertrophy and progressive decline in ambulation. The disease is caused by mutations in Tcap, a z-disc protein of skeletal muscle, although the precise mechanisms resulting in clinical symptoms are unknown. To provide a model for preclinical trials and for mechanistic studies, we generated knockout (KO) mice carrying a null mutation in the Tcap gene. Here we present the first report of a Tcap KO mouse model for LGMD2G and the results of an investigation into the effects of Tcap deficiency on skeletal muscle function in 4- and 12-month-old mice. Muscle histology of Tcap-null mice revealed abnormal myofiber size variation with central nucleation, similar to findings in the muscles of LGMD2G patients. An analysis of a Tcap binding protein, myostatin, showed that deletion of Tcap was accompanied by increased protein levels of myostatin. Our Tcap-null mice exhibited a decline in the ability to maintain balance on a rotating rod, relative to wild-type controls. No differences were detected in force or fatigue assays of isolated extensor digitorum longus (EDL) and soleus (SOL) muscles. Finally, a mechanical investigation of EDL and SOL indicated an increase in muscle stiffness in KO animals. We are the first to establish a viable KO mouse model of Tcap deficiency and our model mice demonstrate a dystrophic phenotype comparable to humans with LGMD2G.

Indexed as

Disease Models, AnimalPhenotypeAge FactorsAnalysis of VarianceAnimalsConnectinDNA PrimersElectrophoresis, Polyacrylamide GelGene TargetingGenetic VectorsImmunoblottingMiceMice, KnockoutMicroscopy, ElectronMuscle ProteinsMuscle, SkeletalConnectinDNA PrimersMuscle ProteinsMyostatinTcap protein, mouse

Identifiers

PMID20233748
PMCPMC2865379
OpenAlexW2121571386

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.