Evidence map›Paper›PMID 29473159›Full record

ArticleJournal of anatomy2018

Developmental and degenerative cardiac defects in the Taiwanese mouse model of severe spinal muscular atrophy.

Gillian K Maxwell, Eva Szunyogova, Hannah K Shorrock, Thomas H Gillingwater, Simon H Parson

Open access · bronzeAbstract read
In one paragraph

Article in Journal of anatomy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

20 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Article
  3. Spinal muscular atrophy: Biology, pathogenesis, and therapeutic advances.Therapeutic advances in neurological disorders · 2026
    Review
  4. Article
  5. Observational
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Revisiting the role of mitochondria in spinal muscular atrophy.Cellular and molecular life sciences : CMLS · 2021
    Review
  12. Review
  13. Article
  14. Widespread tissue hypoxia dysregulates cell and metabolic pathways in SMA.Annals of clinical and translational neurology · 2020
    Article
  15. Article
  16. Article
  17. Article
  18. Abnormal fatty acid metabolism is a core component of spinal muscular atrophy.Annals of clinical and translational neurology · 2019
    Article
  19. Article
  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

5 authors at 2 institutions in 1 country.

Gillian K MaxwellInstitute for Medical Science, University of Aberdeen, Aberdeen, UK.
Eva SzunyogovaInstitute for Medical Science, University of Aberdeen, Aberdeen, UK.
Hannah K ShorrockEuan MacDonald Centre for Motor Neurone Disease Research, University of Edinburgh, Edinburgh, UK.
Thomas H GillingwaterEuan MacDonald Centre for Motor Neurone Disease Research, University of Edinburgh, Edinburgh, UK.ORCID 0000-0002-0306-5577
Simon H ParsonInstitute for Medical Science, University of Aberdeen, Aberdeen, UK.ORCID 0000-0002-8848-8738
Mott MacDonald (United Kingdom) · GBUniversity of Aberdeen · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Spinal muscular atrophy (SMA), an autosomal recessive disease caused by a decrease in levels of the survival motor neuron (SMN) protein, is the most common genetic cause of infant mortality. Although neuromuscular pathology is the most severe feature of SMA, other organs and tissues, including the heart, are also known to be affected in both patients and animal models. Here, we provide new insights into changes occurring in the heart, predominantly at pre- and early symptomatic ages, in the Taiwanese mouse model of severe SMA. Thinning of the interventricular septum and dilation of the ventricles occurred at pre- and early symptomatic ages. However, the left ventricular wall was significantly thinner in SMA mice from birth, occurring prior to any overt neuromuscular symptoms. Alterations in collagen IV protein from birth indicated changes to the basement membrane and contributed to the abnormal arrangement of cardiomyocytes in SMA hearts. This raises the possibility that developmental defects, occurring prenatally, may contribute to cardiac pathology in SMA. In addition, cardiomyocytes in SMA hearts exhibited oxidative stress at pre-symptomatic ages and increased apoptosis during early symptomatic stages of disease. Heart microvasculature was similarly decreased at an early symptomatic age, likely contributing to the oxidative stress and apoptosis phenotypes observed. Finally, an increased incidence of blood retention in SMA hearts post-fixation suggests the likelihood of functional defects, resulting in blood pooling. These pathologies mirror dilated cardiomyopathy, with clear consequences for heart function that would likely contribute to potential heart failure. Our findings add significant additional experimental evidence in support of the requirement to develop systemic therapies for SMA capable of treating non-neuromuscular pathologies.

Indexed as

AnimalsDisease Models, AnimalHeartHeart DiseasesMiceMyocardiumSpinal Muscular Atrophies of Childhoodcardiaccardiovascularcell deathseptumstressventricle

Identifiers

PMID29473159
PMCPMC5978979
OpenAlexW2794189329

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.