Evidence map›Paper›PMID 30807241›Full record

ArticleJournal of the American Heart Association2019

Ultrastructural Changes of the Right Ventricular Myocytes in Pulmonary Arterial Hypertension.

Nataliia V Shults, Sergey S Kanovka, Jennifer E Ten Eyck, Vladyslava Rybka, Yuichiro J Suzuki

Open access · goldAbstract readComparative Study
In one paragraph

Article in Journal of the American Heart Association, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

21 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Multi-Protective Effects of Petunidin-3-O-(International journal of molecular sciences · 2024
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  6. Review
  7. Mitochondrial Integrity Is Critical in Right Heart Failure Development.International journal of molecular sciences · 2023
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Antioxidant Regulation of Cell Reprogramming.Antioxidants (Basel, Switzerland) · 2019
    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

5 authors at 2 institutions in 1 country.

Nataliia V Shults1 Department of Pharmacology and Physiology Georgetown University Medical Center Washington DC.
Sergey S Kanovka1 Department of Pharmacology and Physiology Georgetown University Medical Center Washington DC.
Jennifer E Ten Eyck1 Department of Pharmacology and Physiology Georgetown University Medical Center Washington DC.
Vladyslava Rybka1 Department of Pharmacology and Physiology Georgetown University Medical Center Washington DC.
Yuichiro J Suzuki1 Department of Pharmacology and Physiology Georgetown University Medical Center Washington DC.
Georgetown University · USGeorgetown University Medical Center · US

Funding

Mechanism of apoptosis in lung vascular smooth muscleR01HL072844 · NHLBI · TUFTS UNIVERSITY BOSTON · PI SUZUKI, YUICHIRO JUSTIN · 2003 to 2017
$3.3M
NHLBI NIH HHS R01 HL072844
6 · The paper itself

Abstract

Background Pulmonary arterial hypertension ( PAH ) is a serious disease without cure. Elevated pulmonary vascular resistance puts strain on the right ventricle ( RV ) and patients die of RV failure. Subjecting Sprague-Dawley rats to SU 5416 injection and hypoxia promotes severe PAH with pulmonary vascular lesions similar to human disease and has been well utilized to investigate pulmonary vascular pathology. However, despite exhibiting severe RV fibrosis, these rats do not die. Recently, subjecting Fischer ( CDF ) rats to the same treatment to promote PAH was found to result in mortality. Thus, the present study performed detailed morphological characterizations of Fischer rats with PAH . Methods and Results Rats were subjected to SU 5416 injection and hypoxia for 3 weeks, followed by maintenance in normoxia. More than 90% of animals died within 6 weeks of the SU 5416 injection. Necropsy revealed the accumulation of fluid in the chest cavity, right ventricular hypertrophy and dilatation, hepatomegaly, and other indications of congestive heart failure. Time course studies demonstrated the progressive thickening of pulmonary arteries with the formation of concentric lamellae and plexiform lesions as well as RV fibrosis in PAH rats. Transmission electron microscopy demonstrated the destruction of the myofilaments, T-tubules, and sarcoplasmic reticulum. RV mitochondrial damage and fission were found in Fischer rats, but not in Sprague-Dawley rats, with PAH . Conclusions These results suggest that the destruction of RV mitochondria plays a role in the mechanism of PAH -induced death. The SU 5416/hypoxia model in Fischer rats should be useful for further investigating the mechanism of RV failure and finding effective therapeutic agents to increase the survival of PAH patients.

Indexed as

AnimalsDisease Models, AnimalDisease ProgressionFemaleFibrosisHeart FailureHeart VentriclesMaleMetabolomicsMicroscopy, Electron, TransmissionMitochondria, HeartMyocytes, CardiacPulmonary Arterial HypertensionRats, Inbred F344Rats, Sprague-DawleySpecies SpecificityFischer ratsmitochondriapulmonary heart diseasepulmonary hypertensionratsright heart failuretransmission electron microscopy

Identifiers

PMID30807241
PMCPMC6474942
OpenAlexW2917061201

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.