Evidence map›Paper›PMID 19752383›Full record

ArticleCirculation2009

Phosphodiesterase-5 inhibitor, tadalafil, protects against myocardial ischemia/reperfusion through protein-kinase g-dependent generation of hydrogen sulfide.

Fadi N Salloum, Vinh Q Chau, Nicholas N Hoke, Antonio Abbate, Amit Varma, Ramzi A Ockaili, Stefano Toldo, Rakesh C Kukreja

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Circulation, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 77 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 1 pooled it
7.7field-weighted citation impact, top 2% 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

77 citing papers in PubMed, 1 synthesis or guideline pooled it, 157 citations in OpenAlex.

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17 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Fadi N SalloumDepartment of Internal Medicine, Virginia Commonwealth University, Richmond, 23298, USA. fnsalloum@vcu.edu
Vinh Q Chau
Nicholas N Hoke
Antonio Abbate
Amit Varma
Ramzi A Ockaili
Stefano Toldo
Rakesh C Kukreja
Virginia Commonwealth University · US

Funding

Protection against Doxorubicin-Induced CardiomyopathyR37HL051045 · NHLBI · VIRGINIA COMMONWEALTH UNIVERSITY · PI KUKREJA, RAKESH C · 2006 to 2015
$3.8M
CARDIOPROTECTIVE EFFECTS OF PDE-5 INHIBITORSR01HL079424 · NHLBI · VIRGINIA COMMONWEALTH UNIVERSITY · PI KUKREJA, RAKESH C · 2005 to 2013
$3.6M
MOLECULAR MECHANISMS OF DELAYED PRECONDITIONINGR01HL059469 · NHLBI · VIRGINIA COMMONWEALTH UNIVERSITY · PI KUKREJA, RAKESH C. · 1998 to 2006
$2.4M
Cardioprotective Signaling following Phosphodiesterase-5 InhibitionR01HL093685 · NHLBI · VIRGINIA COMMONWEALTH UNIVERSITY · PI KUKREJA, RAKESH C · 2008 to 2012
$1.9M
SIGNALING MECHANISMS IN PHARMACOLOGICAL PRECONDITIONINGR01HL051045 · NHLBI · VIRGINIA COMMONWEALTH UNIVERSITY · PI KUKREJA, RAKESH C. · 1995 to 2004
$1.4M
NHLBI NIH HHS HL51045NHLBI NIH HHS HL59469NHLBI NIH HHS HL79424NHLBI NIH HHS R01 HL051045NHLBI NIH HHS R01 HL059469NHLBI NIH HHS R01 HL079424NHLBI NIH HHS R01 HL093685NHLBI NIH HHS R37 HL051045
6 · The paper itself

Abstract

backgroundTadalafil is a novel long-acting inhibitor of phosphodiesterase-5. Because cGMP-dependent protein kinase (PKG) signaling plays a key role in cardioprotection, we hypothesized that PKG activation with tadalafil would limit myocardial ischemia/reperfusion (I/R) injury and dysfunction. Additionally, we contemplated that cardioprotection with tadalafil is mediated by hydrogen sulfide (H(2)S) signaling in a PKG-dependent fashion. METHODS AND

resultsAfter baseline transthoracic echocardiography (TTE), adult ICR mice were injected i.p. with vehicle (10% DMSO) or tadalafil (1 mg/kg) with or without KT5823 (KT, PKG blocker, 1 mg/kg) or dl-propargylglycine (PAG, Cystathionine-gamma-lyase [CSE, H(2)S-producing enzyme] blocker; 50 mg/kg) 1 hour before coronary artery ligation for 30 minutes and reperfusion for 24 hours, whereas C57BL wild-type and CSE-knockout mice were treated with either vehicle or tadalafil. After reperfusion, TTE was performed and hearts were collected for infarct size (IS) measurement using TTC staining. Survival was increased with tadalafil (95%) compared with control (65%, P<0.05). Infarct size was reduced with tadalafil (13.2+/-1.7%) compared to vehicle (40.6+/-2.5%; P<0.05). KT and PAG abolished tadalafil-induced protection (IS: 39.2+/-1% and 51.2+/-2.4%, respectively) similar to genetic deletion of CSE (47.2+/-5.1%). Moreover, tadalafil preserved fractional shortening (FS: 31+/-1.5%) compared to control (FS: 22+/-4.8%, P<0.05). Baseline FS was 44+/-1.7%. KT and PAG abrogated the preservation of LV function with tadalafil by decline in FS to 17+/-1% and 23+/-3%, respectively. Compared to vehicle, myocardial H(2)S production was significantly increased with tadalafil and was abolished with KT.

conclusionsPKG activation with tadalafil limits myocardial infarction and preserves LV function through H(2)S signaling.

Indexed as

Phosphodiesterase 5 InhibitorsAnimalsCarbolinesCyclic GMP-Dependent Protein KinasesCystathionine beta-SynthaseFemaleHemodynamicsHydrogen SulfideMaleMiceMice, Inbred C57BLMice, Inbred ICRMyocardial InfarctionMyocardial Reperfusion InjuryPhosphodiesterase InhibitorsTadalafilCarbolinesCyclic GMP-Dependent Protein KinasesCystathionine beta-SynthaseHydrogen SulfidePhosphodiesterase 5 InhibitorsPhosphodiesterase InhibitorsTadalafil

Identifiers

PMID19752383
PMCPMC4230451
OpenAlexW2101415537

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.