Evidence map›Paper›PMID 22200728›Full record

Trial reportDiabetologia2012

The endothelin receptor antagonist bosentan improves peripheral endothelial function in patients with type 2 diabetes mellitus and microalbuminuria: a randomised trial.

A Rafnsson, F Böhm, M Settergren, A Gonon, K Brismar, J Pernow

Open access · bronzeAbstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Diabetologia, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 74 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Review
  5. Article
  6. Observational
  7. Dual ETFundamental & clinical pharmacology · 2025
    Article
  8. Endothelial dysfunction in single ventricle physiology and the Fontan circulation - What lies ahead.International journal of cardiology. Congenital heart disease · 2025
    Review
  9. Review
  10. Epigenetic modification in diabetic kidney disease.Frontiers in endocrinology · 2023
    Review
  11. Article
  12. Article
  13. Erythrocytes Induce Vascular Dysfunction in COVID-19.JACC. Basic to translational science · 2022
    Article
  14. Review
  15. Endothelin-1 in the pathophysiology of obesity and insulin resistance.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2020
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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 at 2 institutions in 1 country.

A RafnssonKarolinska Institutet, Department of Medicine, Cardiology Unit, Karolinska University Hospital, Solna, 171 76 Stockholm, Sweden. arnar.rafnsson@karolinska.se
F Böhm
M Settergren
A Gonon
K Brismar
J Pernow
Karolinska Institutet · SEKarolinska University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisEndothelial dysfunction is important in the development of vascular complications in diabetes. Patients with type 2 diabetes have increased production of the vasoconstrictor and pro-inflammatory peptide, endothelin-1. Short-term intra-arterial administration of endothelin antagonists improves endothelium-dependent vasodilatation in patients with type 2 diabetes. We tested the hypothesis that oral administration of the dual endothelin receptor antagonist, bosentan, improves peripheral endothelial function in patients with type 2 diabetes and microalbuminuria.

methodsThis placebo-controlled and double-blind study was performed on 46 patients with type 2 diabetes and microalbuminuria (urine albumin/creatinine ratio >3 mg/mmol) at a medical university department. Patients were randomised to bosentan, 125 mg two times per day (n = 28), or placebo (n = 28) for 4 weeks. The computer-generated randomisation code was kept in sealed envelopes. Patients and people doing examinations or assessing outcomes were blinded. The primary endpoint was change in microvascular endothelium-dependent vasodilatation, based on change in digital reactive hyperaemia index. The secondary endpoint was change in brachial artery flow-mediated vasodilatation.

resultsReactive hyperaemia index increased from 1.73 ± 0.43 (mean ± SD) at baseline to 2.08 ± 0.59 at follow-up (p < 0.05) in the bosentan group (n = 22), but did not change in the placebo group (1.84 ± 0.49 to 1.87 ± 0.47; n = 24). The change in reactive hyperaemia index from baseline was greater in the bosentan group than in the placebo group (p < 0.05). Nitroglycerine-induced digital hyperaemia was not affected. Brachial artery flow-mediated vasodilatation and blood pressure did not change during treatment. CONCLUSIONS/

interpretationOral treatment of 4 weeks duration with the dual endothelin receptor antagonist, bosentan, improves peripheral endothelial function in patients with type 2 diabetes and microalbuminuria.

Indexed as

Endothelin Receptor AntagonistsAgedAlbuminuriaAntihypertensive AgentsBosentanBrachial ArteryDiabetes Mellitus, Type 2Diabetic AngiopathiesDiabetic NephropathiesDouble-Blind MethodEndothelium, VascularFemaleHumansHyperemiaMaleMicrovesselsAntihypertensive AgentsBosentanEndothelin Receptor AntagonistsSulfonamides

Identifiers

PMID22200728
OpenAlexW2088907497

What Socratic holds

Textmetadata
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 Socratic graph.