Evidence map›Paper›PMID 31585804›Full record

ArticleThe journal of sexual medicine2019

Sildenafil Protects Endothelial Cells From Radiation-Induced Oxidative Stress.

R C Wortel, A Mizrachi, H Li, E Markovsky, B Enyedi, J Jacobi, O Brodsky, J Cao, A R Lippert, L Incrocci and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in The journal of sexual medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

18 citing papers in PubMed, 25 citations in OpenAlex.

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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 7 institutions in 4 countries.

R C WortelDepartment of Urology, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Department of Radiation Oncology, Department of Urology, University Medical Center Utrecht, Utrecht, The Netherlands.
A MizrachiHead and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Department of Otolaryngology Head and Neck Surgery, Rabin Medical Center, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
H LiDepartment of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
E MarkovskyDepartment of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
B EnyediDepartment of Cell Biology, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Department of Physiology, Faculty of Medicine, Semmelweis University, Budapest, Hungary.
J JacobiDepartment of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Department of Hematopathology, Columbia University Medical Center, New York, NY, USA.
O BrodskyDepartment of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Department of Urology, Hadassah Medical Center, Jerusalem, Israel.
J CaoDepartment of Chemistry, Southern Methodist University, Dallas, TX, USA.
A R LippertDepartment of Chemistry, Southern Methodist University, Dallas, TX, USA.
L IncrocciDepartment of Radiation Oncology, Erasmus MC, Rotterdam, The Netherlands.
J P MulhallDepartment of Urology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
A Haimovitz-FriedmanDepartment of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA. Electronic address: a-haimovitz-friedman@ski.mskcc.org.
Memorial Sloan Kettering Cancer Center · USSouthern Methodist University · USErasmus University Rotterdam · NLHadassah Medical Center · ILSemmelweis University · HUTel Aviv University · ILUniversity Medical Center Utrecht · NL

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Hongbiao Carl Lekaye · 1985 to 2026
$347.4M
Chemical Probes or Imaging Reactive Sulfur, Oxygen, and Nitrogen Species in Living Cells and Clinical SamplesR15GM114792 · NIGMS · SOUTHERN METHODIST UNIVERSITY · PI LIPPERT, ALEXANDER RYAN · 2015 to 2019
$726k
NCI NIH HHS P30 CA008748NIGMS NIH HHS R15 GM114792
6 · The paper itself

Abstract

introductionThe etiology of radiation-induced erectile dysfunction (ED) is complex and multifactorial, and it appears to be mainly atherogenic.

aimTo focus on vascular aspects of radiation-induced ED and to elucidate whether the protective effects of sildenafil are mediated by attenuation of oxidative stress and apoptosis in the endothelial cells.

methodsBovine aortic endothelial cells (BAECs), with or without pretreatment of sildenafil (5 μM at 5 minutes before radiation), were used to test endothelial dysfunction in response to external beam radiation at 10-15 Gy. Generation of reactive oxygen species (ROS) was studied. Extracellular hydrogen peroxide (H

main outcome measuresSingle high-dose radiation therapy induced NADPH oxidases (NOXs) activation and ROS generation via the proapoptotic ASMase/ceramide pathway. The radio-protective effect of sildenafil on BAECs was due to inhibition of this pathway.

resultsHere, we demonstrate for the first time that radiation activated NOXs and induced generation of ROS in BAECs. In addition, we showed that sildenafil significantly reduced radiation-induced O STRENGTHS AND LIMITATIONS: This is the first study demonstrating that single high-dose radiation therapy induced NOXs activation, resulting in the generation of O

conclusionsThis study demonstrated that sildenafil protects BAECs from radiation-induced oxidative stress by reducing NOX-induced ROS generation, thus resulting in decreased endothelial dysfunction. Therefore, it provides a potential mechanism to better understand the atherogenic etiology of postradiation ED. Wortel RC, Mizrachi A, Li H, et al. Sildenafil Protects Endothelial Cells From Radiation-Induced Oxidative Stress. J Sex Med 2019;16:1721-1733.

Indexed as

AnimalsApoptosisCattleEndothelial CellsErectile DysfunctionHydrogen PeroxideMaleNADPH OxidasesNitric OxideOxidative StressPenile ErectionReactive Oxygen SpeciesSildenafil CitrateHydrogen PeroxideNADPH OxidasesNitric OxideReactive Oxygen SpeciesSildenafil CitrateEndothelial DamageErectile DysfunctionOxidative StressRadiationReactive Oxygen Species

Identifiers

PMID31585804
PMCPMC7269093
OpenAlexW2977826553

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.