Evidence map›Paper›PMID 28246076›Full record

ArticleJournal of the American Heart Association2017

Rac1 Pharmacological Inhibition Rescues Human Endothelial Dysfunction.

Albino Carrizzo, Carmine Vecchione, Antonio Damato, Flavio di Nonno, Mariateresa Ambrosio, Franco Pompeo, Enrico Cappello, Luca Capocci, Mariangela Peruzzi, Valentina Valenti and 11 more

Open access · goldAbstract read
In one paragraph

Article in Journal of the American Heart Association, 2017. 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
2.6field-weighted citation impact, top 10% 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, 20 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Reply to Doboszewska et al.: The many faces of G-protein-coupled receptor 39.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Oxidative medicine and cellular longevity · 2019
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
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

21 authors at 6 institutions in 2 countries.

Albino CarrizzoIRCCS Neuromed, Pozzilli (IS), Italy.
Carmine VecchioneIRCCS Neuromed, Pozzilli (IS), Italy cvecchione@unisa.it.
Antonio DamatoIRCCS Neuromed, Pozzilli (IS), Italy.
Flavio di NonnoIRCCS Neuromed, Pozzilli (IS), Italy.
Mariateresa AmbrosioIRCCS Neuromed, Pozzilli (IS), Italy.
Franco PompeoIRCCS Neuromed, Pozzilli (IS), Italy.
Enrico CappelloIRCCS Neuromed, Pozzilli (IS), Italy.
Luca CapocciIRCCS Neuromed, Pozzilli (IS), Italy.
Mariangela PeruzziDepartment of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, Latina, Italy.
Valentina ValentiDepartment of Imaging, Bambino Gesù Children Hospital, IRCCS, Rome, Italy.
Giuseppe Biondi-ZoccaiIRCCS Neuromed, Pozzilli (IS), Italy.
Antonino G M MarulloDepartment of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, Latina, Italy.
Silvia PalmerioDepartment of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, Latina, Italy.
Roberto CarnevaleDepartment of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, Latina, Italy.
Chiara C SpinelliIRCCS Multimedica S.p.A, Milan, Italy.
Annibale A PucaDepartment of Medicine and Surgery, University of Salerno, Baronissi (SA), Italy.
Speranza RubattuIRCCS Neuromed, Pozzilli (IS), Italy.
Massimo VolpeIRCCS Neuromed, Pozzilli (IS), Italy.
Junichi SadoshimaDepartment of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ.
Giacomo FratiIRCCS Neuromed, Pozzilli (IS), Italy.
Sebastiano SciarrettaIRCCS Neuromed, Pozzilli (IS), Italy.
Istituto Neurologico Mediterraneo · ITSapienza University of Rome · ITMultiMedica · ITIstituti di Ricovero e Cura a Carattere Scientifico · ITRutgers, The State University of New Jersey · USUniversity of Salerno · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEndothelial dysfunction contributes significantly to the development of vascular diseases. However, a therapy able to reduce this derangement still needs to be identified. We evaluated the effects of pharmacological inhibition of Rac1, a small GTPase protein promoting oxidative stress, in human endothelial dysfunction. METHODS AND

resultsWe performed vascular reactivity studies to test the effects of NSC23766, a Rac1 inhibitor, on endothelium-dependent vasorelaxation of saphenous vein segments collected from 85 subjects who had undergone surgery for venous insufficiency and from 11 patients who had undergone peripheral vascular surgery. The endothelium-dependent vasorelaxation of the varicose segments of saphenous veins collected from patients with venous insufficiency was markedly impaired and was also significantly lower than that observed in control nonvaricose vein tracts from the same veins. Rac1 activity, reactive oxygen species levels, and reduced nicotine adenine dinucleotide phosphate (NADPH) oxidase activity were significantly increased in varicose veins, and NSC23766 was able to significantly improve endothelium-dependent vasorelaxation of dysfunctional saphenous vein portions in a nitric oxide-dependent manner. These effects were paralleled by a significant reduction of NADPH oxidase activity and activation of endothelial nitric oxide synthase. Finally, we further corroborated this data by demonstrating that Rac1 inhibition significantly improves venous endothelial function and reduces NADPH oxidase activity in saphenous vein grafts harvested from patients with vascular diseases undergoing peripheral bypass surgery.

conclusionsRac1 pharmacological inhibition rescues endothelial function and reduces oxidative stress in dysfunctional veins. Rac1 inhibition may represent a potential therapeutic intervention to reduce human endothelial dysfunction and subsequently vascular diseases in various clinical settings.

Indexed as

AdolescentAdultAgedAged, 80 and overAminoquinolinesChronic DiseaseEndothelium, VascularFemaleHumansImmunoblottingMaleMiddle AgedNADPNitric Oxide Synthase Type IIIOxidative StressPyrimidinesAminoquinolinesNADPNitric Oxide Synthase Type IIINOS3 protein, humanNSC 23766Pyrimidinesrac1 GTP-Binding ProteinRAC1 protein, humanReactive Oxygen Speciescardiovascular diseaseendothelial dysfunctionnitric oxideoxidative stress

Identifiers

PMID28246076
PMCPMC5524008
OpenAlexW2593985313

What OpenQuestion holds

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LicenceCC BY
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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.