Evidence map›Paper›PMID 21856917›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2011

Short-term oral progesterone administration antagonizes the effect of transdermal estradiol on endothelium-dependent vasodilation in young healthy women.

Jennifer A Miner, Emily R Martini, Michael M Smith, Vienna E Brunt, Paul F Kaplan, John R Halliwill, Christopher T Minson

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

37 citing papers in PubMed, 63 citations in OpenAlex.

  1. ETAmerican journal of physiology. Heart and circulatory physiology · 2021
    Trial
  2. Trial
  3. Sex comparison of cerebrovascular reactivity to COJournal of applied physiology (Bethesda, Md. : 1985) · 2026
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  5. Article
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  9. Characterizing vascular and hormonal changes in women across the life span: a cross-sectional analysis.American journal of physiology. Heart and circulatory physiology · 2024
    Article
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  11. Review
  12. Article
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  18. Sympathetic neural responsiveness to sleep deprivation in older adults: sex differences.American journal of physiology. Heart and circulatory physiology · 2019
    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

7 authors at 2 institutions in 1 country.

Jennifer A MinerDepartment of Human Physiology, University of Oregon, Eugene, OR 97403, USA.
Emily R Martini
Michael M Smith
Vienna E Brunt
Paul F Kaplan
John R Halliwill
Christopher T Minson
University of Oregon · USOregon Health & Science University · US

Funding

Progesterone and Vascular Function in WomenR01HL081671 · NHLBI · UNIVERSITY OF OREGON · PI MINSON, CHRISTOPHER TODD · 2008 to 2011
$1.3M
NHLBI NIH HHS HL-081671
6 · The paper itself

Abstract

Very few studies have explored the cardiovascular effects of progesterone in premenopausal women. This study aimed to examine the short-term effects of oral progesterone alone, transdermal estrogen alone, and progesterone and estrogen combined on flow-mediated dilation (FMD) in healthy reproductive-aged women. We suppressed endogenous estrogens and progesterone in 17 premenopausal women for 10-12 days using a gonadotropin-releasing hormone antagonist. On day 4 (hormone suppression condition), subjects were tested (n = 17) and were then supplemented with either 200 mg micronized progesterone (n = 8) orally or 0.1 mg estradiol (n = 9) transdermally per day. On day 7 (progesterone-first or estradiol-first condition), subjects were tested and began supplementation with both hormones (n = 17) and were tested again on day 10 (combined hormone condition). FMD of the brachial artery was assessed using B-mode arterial ultrasound, combined with synchronized Doppler analysis. As a result, significant differences in FMD were observed between hormone suppression (7.85 ± 1.06%) and estrogen-first conditions (10.14 ± 1.40%; P < 0.05). The estradiol-induced increase was abolished when oral progesterone was also supplemented (6.27 ± 0.96%). In contrast, we observed a trend toward a decrease in FMD with unopposed progesterone administration, but no statistically significant differences were found between the progesterone-first (6.66 ± 1.23%), hormone suppression (7.80 ± 1.23%), and combined hormone conditions (7.40 ± 1.29%). In conclusion, these data suggest that short-term oral micronized progesterone administration antagonizes the beneficial effect of transdermal estradiol on FMD.

Indexed as

Estrogen AntagonistsAdolescentAdultBrachial ArteryElectrocardiographyEndothelium, VascularEstradiolFemaleFollow-Up StudiesHumansProgesteroneUltrasonography, DopplerVasodilationYoung AdultEstradiolEstrogen AntagonistsProgesterone

Identifiers

PMID21856917
PMCPMC3197435
OpenAlexW2123110153

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.