Evidence map›Paper›PMID 24502628›Full record

ArticleJournal of translational medicine2014

Sildenafil ameliorates oxidative stress and DNA damage in the stenotic kidneys in mice with renovascular hypertension.

Ananda T Dias, Bianca P Rodrigues, Marcella L Porto, Agata L Gava, Camille M Balarini, Flavia P S Freitas, Zaira Palomino, Dulce E Casarini, Bianca P Campagnaro, Thiago M C Pereira and 2 more

Open access · goldAbstract read
In one paragraph

Article in Journal of translational medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
5.3field-weighted citation impact, top 4% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. DNA damage and arterial hypertension. A systematic review and meta-analysis.Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia · 2024
    Pooled it
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  4. Short-Term Intake ofAntioxidants (Basel, Switzerland) · 2025
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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

12 authors at 4 institutions in 1 country.

Ananda T Dias
Bianca P Rodrigues
Marcella L Porto
Agata L Gava
Camille M Balarini
Flavia P S Freitas
Zaira Palomino
Dulce E Casarini
Bianca P Campagnaro
Thiago M C Pereira
Silvana S Meyrelles
Elisardo C VasquezLaboratory of Translational Physiology, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil. evasquez@pq.cnpq.br.
Universidade Federal do Espírito Santo · BRUniversidade Vila Velha · BRUniversidade Federal de São Paulo · BRUniversidade Federal da Paraíba · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOxidative stress and DNA damage have been implicated in the pathogenesis of renovascular hypertension induced by renal artery stenosis in the two-kidney, one-clip (2K1C) Goldblatt model. Considering our previous report indicating that the chronic blockade of phosphodiesterase 5 with sildenafil (Viagra) has marked beneficial effects on oxidative stress and DNA damage, we tested the hypothesis that sildenafil could also protect the stenotic kidneys of 2K1C hypertensive mice against oxidative stress and genotoxicity.

methodsThe experiments were performed with C57BL6 mice subjected to renovascular hypertension by left renal artery clipping. Two weeks after clipping, the mice were treated with sildenafil (40 mg/kg/day for 2 weeks, 2K1C-sildenafil group) or the vehicle (2K1C). These mice were compared with control mice not subjected to renal artery clipping (Sham). After hemodynamic measurements, the stenotic kidneys were assessed using flow cytometry to evaluate cell viability and the comet assay to evaluate DNA damage. Measurements of intracellular superoxide anions and hydrogen peroxide levels as well as nitric oxide bioavailability were also obtained.

resultsSildenafil treatment significantly reduced mean arterial pressure (15%), heart rate (8%), intrarenal angiotensin II (50%) and renal atrophy (36%). In addition, it caused a remarkable decrease of reactive oxygen species production. On the other hand, sildenafil increased nitric oxide levels relative to those in the nontreated 2K1C mice. Sildenafil treatment also significantly reduced the high level of kidney DNA damage that is a characteristic of renovascular hypertensive mice.

conclusionsOur data reveal that sildenafil has a protective effect on the stenotic kidneys of 2K1C mice, suggesting a new use of phosphodiesterase 5 inhibitors for protection against the DNA damage observed in the hypoperfused kidneys of individuals with renovascular hypertension. Further translational research is necessary to delineate the mechanisms involved in the prevention of renal stenosis in the clinical setting.

Indexed as

DNA DamageAngiotensin IIAnimalsBlood PressureBody WeightComet AssayConstriction, PathologicHeart RateHypertension, RenovascularKidneyKidney Function TestsMiceMice, Inbred C57BLOrgan SizeOxidative StressPiperazinesAngiotensin IIPiperazinesPurinesReactive Oxygen SpeciesSildenafil CitrateSulfones

Identifiers

PMID24502628
PMCPMC3922021
OpenAlexW2166011712

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LicenceCC BY
Read underepoch 390

Registered trials

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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.