Evidence map›Paper›PMID 32418479›Full record

ArticleCirculation. Heart failure2020

Phosphodiesterase 9a Inhibition in Mouse Models of Diastolic Dysfunction.

Mei Methawasin, Joshua Strom, Tomasz Borkowski, Zaynab Hourani, Ray Runyan, John E Smith, Henk Granzier

Open access · bronzeAbstract read
In one paragraph

Article in Circulation. Heart failure, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.7field-weighted citation impact, top 5% 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

29 citing papers in PubMed, 42 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Novel Drug Targets in Diastolic Heart Disease.International journal of molecular sciences · 2025
    Review
  6. Review
  7. Review
  8. An ovary-intact postmenopausal HFpEF mouse model; menopause is more than just estrogen deficiency.American journal of physiology. Heart and circulatory physiology · 2025
    Article
  9. Review
  10. Phosphodiesterases: Evolving Concepts and Implications for Human Therapeutics.Annual review of pharmacology and toxicology · 2025
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Review
  17. Review
  18. Review
  19. Sex-dimorphic gene effects on survival outcomes in people with coronary artery disease.American heart journal plus : cardiology research and practice · 2022
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Mei MethawasinDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, University of Arizona, Tucson, AZ.
Joshua StromDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, University of Arizona, Tucson, AZ.
Tomasz BorkowskiDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, University of Arizona, Tucson, AZ.
Zaynab HouraniDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, University of Arizona, Tucson, AZ.
Ray RunyanDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, University of Arizona, Tucson, AZ.
John E SmithDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, University of Arizona, Tucson, AZ.
Henk GranzierDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, University of Arizona, Tucson, AZ.
University of Arizona · US

Funding

VITAMIN AP30CA023074 · NCI · UNIVERSITY OF ARIZONA · PI Teri L Bankhead · 1985 to 2026
$110.2M
Role of the giant protein titin in cardiac health and diseaseR35HL144998 · NHLBI · UNIVERSITY OF ARIZONA · PI GRANZIER, HENK L. · 2019 to 2025
$6.3M
NCI NIH HHS P30 CA023074NHLBI NIH HHS R35 HL144998
6 · The paper itself

Abstract

backgroundLow myocardial cGMP-PKG (cyclic guanosine monophosphate-protein kinase G) activity has been associated with increased cardiomyocyte diastolic stiffness in heart failure with preserved ejection fraction. Cyclic guanosine monophosphate is mainly hydrolyzed by PDE (phosphodiesterases) 5a and 9a. Importantly, PDE9a expression has been reported to be upregulated in human heart failure with preserved ejection fraction myocardium and chronic administration of a PDE9a inhibitor reverses preestablished cardiac hypertrophy and systolic dysfunction in mice subjected to transverse aortic constriction (TAC). We hypothesized that inhibiting PDE9a activity ameliorates diastolic dysfunction.

methodsTo examine the effect of chronic PDE9a inhibition, 2 diastolic dysfunction mouse models were studied: (1) TAC-deoxycorticosterone acetate and (2)

resultsFor acute inhibition, no cellular stiffness reduction was found, whereas chronic PDE9a inhibition resulted in reduced left ventricular chamber stiffness in TAC-deoxycorticosterone acetate, but not in

conclusionsChronic PDE9a inhibition lowers left ventricular chamber stiffness in TAC-deoxycorticosterone acetate mice. However, the usefulness of PDE9a inhibition to treat high-diastolic stiffness may be limited as the required PDE9a inhibitor dose also impairs systolic function, observed as a decline in ventricular-arterial coordination, in this model.

Indexed as

3',5'-Cyclic-AMP PhosphodiesterasesAnimalsDiastoleDisease Models, AnimalMaleMice, Inbred C57BLMyocytes, CardiacPhosphodiesterase InhibitorsVentricular Dysfunction, LeftVentricular Function, Left3',5'-Cyclic-AMP PhosphodiesterasesPde9a protein, mousePhosphodiesterase Inhibitorsconstrictiondiastoleguanosine monophosphateheart failureprevalence

Identifiers

PMID32418479
PMCPMC7895451
OpenAlexW3027736702

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.