Evidence map›Paper›PMID 21418384›Full record

Trial reportMicrocirculation (New York, N.Y. : 1994)2011

Combined oral contraceptive pills containing desogestrel or drospirenone enhance large vessel and microvasculature vasodilation in healthy premenopausal women.

Abby K Thompson, Agnieszka Przemska, Dafni Vasilopoulou, Katie J Newens, Christine M Williams

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Microcirculation (New York, N.Y. : 1994), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 22% 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

9 citing papers in PubMed, 27 citations in OpenAlex.

  1. Trial
  2. Article
  3. Oral contraceptive pill phase alters mechanisms contributing to cutaneous microvascular function in response to local heating.American journal of physiology. Regulatory, integrative and comparative physiology · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Hormonal therapy with estradiol and drospirenone improves endothelium-dependent vasodilation in the coronary bed of ovariectomized spontaneously hypertensive rats.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2016
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Abby K ThompsonHugh Sinclair Unit of Human Nutrition, Department of Food and Nutrition Science, University of Reading, Reading, UK. a.k.thompson@reading.ac.uk
Agnieszka Przemska
Dafni Vasilopoulou
Katie J Newens
Christine M Williams
University of Reading · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine the effects of different COCs on endothelial function.

backgroundCOCs all contain ethinylestradiol, but different progestins; three of the more common progestins are DSG, LN, and DR. Ethinylestradiol enhances some measures of vascular reactivity, but certain progestins may increase risk of vascular diseases and impair endothelial vasodilation.

methodsTwenty-nine healthy women taking COCs containing 30 μg ethinylestradiol and 150 μg DSG (Marvelon, n = 10), 150 μg LN (Microgynon, n = 10), or 3 mg DR (Yasmin, n = 9) had their vascular reactivity measured using various techniques during their pill-free week (days 5-7) and the third week of active pills (days 26-28). A reference group (n = 10) underwent the same measurements on two consecutive cycles.

resultsFMD and LDI were significantly higher during active-pill visits than pill-free visits in women taking DSG and DR (p < 0.02), but not in women taking LN. There were no differences between the duplicate measures in the reference group.

conclusionsCOCs containing 150 μg DSG or 3 mg DR significantly increase endothelium-dependent vasodilation in both large vessels and peripheral microvasculature. These effects may be due to the progestins exhibiting differential effects on eNOS expression.

Indexed as

AdultAndrostenesContraceptives, Oral, SyntheticDesogestrelEndothelium, VascularEstrogensEthinyl EstradiolFemaleGene Expression Regulation, EnzymologicHumansMenstrual CycleMineralocorticoid Receptor AntagonistsNitric Oxide Synthase Type IIITime FactorsVasodilationAndrostenesContraceptives, Oral, SyntheticDesogestreldrospirenoneEstrogensEthinyl EstradiolMineralocorticoid Receptor AntagonistsNitric Oxide Synthase Type IIINOS3 protein, human

Identifiers

PMID21418384
OpenAlexW1733498604

What OpenQuestion 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 OpenQuestion graph.