Evidence map›Paper›PMID 21161247›Full record

ArticleBasic research in cardiology2011

Conserved expression and functions of PDE4 in rodent and human heart.

Wito Richter, Moses Xie, Colleen Scheitrum, Judith Krall, Matthew A Movsesian, Marco Conti

Abstract readComparative Study
In one paragraph

Article in Basic research in cardiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed
–field-weighted citation impact
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

74 citing papers in PubMed.

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  11. Compartmentalized cAMP signalling and control of cardiac rhythm.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Review
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14 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

6 authors.

Wito RichterDepartment of Gynecology, Obstetrics, and Reproductive Sciences, Center for Reproductive Sciences, University of California San Francisco, Box 0556, 513 Parnassus Avenue, San Francisco, CA 94143-0556, USA. richterw@obgyn.ucsf.edu
Moses Xie
Colleen Scheitrum
Judith Krall
Matthew A Movsesian
Marco Conti

Funding

Hormonal Regulation of PhosphodiestrasesR01HL092788 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI CONTI, MARCO · 2008 to 2012
$1.9M
FGF-1 AND CHRONIC TRANSPLANT REJECTIONF32HL009270 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI KERBY, JEFFREY D · 1995 to 1995
–
NHLBI NIH HHS HL0927088NHLBI NIH HHS R01 HL092788
6 · The paper itself

Abstract

PDE4 isoenzymes are critical in the control of cAMP signaling in rodent cardiac myocytes. Ablation of PDE4 affects multiple key players in excitation-contraction coupling and predisposes mice to the development of heart failure. As little is known about PDE4 in human heart, we explored to what extent cardiac expression and functions of PDE4 are conserved between rodents and humans. We find considerable similarities including comparable amounts of PDE4 activity expressed, expression of the same PDE4 subtypes and splicing variants, anchoring of PDE4 to the same subcellular compartments and macromolecular signaling complexes, and downregulation of PDE4 activity and protein in heart failure. The major difference between the species is a fivefold higher amount of non-PDE4 activity in human hearts compared to rodents. As a consequence, the effect of PDE4 inactivation is different in rodents and humans. PDE4 inhibition leads to increased phosphorylation of virtually all PKA substrates in mouse cardiomyocytes, but increased phosphorylation of only a restricted number of proteins in human cardiomyocytes. Our findings suggest that PDE4s have a similar role in the local regulation of cAMP signaling in rodent and human heart. However, inhibition of PDE4 has 'global' effects on cAMP signaling only in rodent hearts, as PDE4 comprises a large fraction of the total cardiac PDE activity in rodents but not in humans. These differences may explain the distinct pharmacological effects of PDE4 inhibition in rodent and human hearts.

Indexed as

AnimalsCells, CulturedCyclic AMPCyclic AMP-Dependent Protein KinasesCyclic Nucleotide Phosphodiesterases, Type 4Enzyme ActivationHeart FailureHumansIsoenzymesMiceMyocardiumMyocytes, CardiacPhosphorylationRatsCyclic AMPCyclic AMP-Dependent Protein KinasesCyclic Nucleotide Phosphodiesterases, Type 4Isoenzymes

Identifiers

PMID21161247
PMCPMC3032896

What OpenQuestion holds

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LicenceCC BY-NC
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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.