Evidence map›Paper›PMID 21173076›Full record

ArticleThe Journal of physiology2011

Progesterone enhances adrenergic control of skin blood flow in women with high but not low orthostatic tolerance.

Megan M Wenner, Hugh S Taylor, Nina S Stachenfeld

Registry-linked trialOpen access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03236545 (Mechanisms of Vascular Dysfunction in Women), which is not on this map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.2field-weighted citation impact, top 23% 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.

NCT03236545 nacompletednot on this mapstarted 2016, after this paper: background citation

Mechanisms of Vascular Dysfunction in Women: Role of Estradiol

TypeinterventionalSponsorUniversity of DelawareRan2016 to 2022Enrolled48ConditionsCardiovascular Risk FactorArmsNo to Low Endogenous Estrogen, Estradiol
3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 39 citations in OpenAlex.

  1. Guidelines on the use of sex and gender in cardiovascular research.American journal of physiology. Heart and circulatory physiology · 2024
    Review
  2. Review
  3. Article
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  7. Article
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  11. Article
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  15. Article
  16. Challenges and methodology for testing young healthy women in physiological studies.American journal of physiology. Endocrinology and metabolism · 2014
    Article
  17. Sex differences in forearm vasoconstrictor response to voluntary apnea.American journal of physiology. Heart and circulatory physiology · 2014
    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

3 authors at 2 institutions in 1 country.

Megan M WennerThe John B. Pierce Laboratory, New Haven, CT, USA. mwenner@jbpierce.org
Hugh S Taylor
Nina S Stachenfeld
John B. Pierce Laboratory · USYale University · US

Funding

Estrogen &Progesterone Effects on Orthostatic ToleranceR01HL071159 · NHLBI · JOHN B. PIERCE LABORATORY, INC. · PI STACHENFELD, NINA · 2003 to 2010
$3.2M
NHLBI NIH HHS R01 HL071159
6 · The paper itself

Abstract

Women are more susceptible to orthostatic intolerance. Peripheral α-adrenergic responsiveness is important in orthostasis and is lower in women compared to men, and is modulated by female sex hormones. We tested the hypothesis that oestradiol attenuates peripheral cutaneous adrenergic responses in women with low orthostatic tolerance (LT), whereas progesterone enhances adrenergic responses in women with high orthostatic tolerance (HT). After completing a maximal lower body negative pressure test to determine level of orthostatic tolerance (cumulative stress index, CSI), women self administered a gonadotropin releasing hormone (GnRH) antagonist for 16 days to suppress endogenous sex hormone production. Oestradiol (E2, 0.2 mg day−1, patch; days 4–16), and progesterone (P4, 200 mg day−1, oral; days 12–16) were administered. Skin blood flow responses to graded intradermal microdialysis infusions of noradrenaline (NA) were measured during GnRH antagonist, E2, and E2+P4, in eight HT (s.e.m. = 22 ± 1 years, CSI −871 ± 86 mmHg min) and eight LT (21 ± 1 years, CSI −397 ± 65 mmHg min) women. In separate probes, NA was infused alone, and co-infused with the nitric oxide synthase inhibitor NG-monomethyl-l-arginine (l-NMMA, 10 mm), the non-selective cyclooxygenase inhibitor ketorolac tromethamine (Keto, 10 mm), and combined l-NMMA + Keto (10 mm each). Progesterone administration enhanced adrenergic responses in HT women (logEC50 GnRH −4.02 ± 0.39, E2+P4 −5.18 ± 0.31, P < 0.05); this response was reversed with Keto (E2+P4 logEC50 NA+Keto −3.82 ± 0.35, P < 0.05). In contrast, no change in adrenergic responsiveness occurred in LT women during any hormone condition. These data indicate differential regulation of cutaneous adrenergic responses by progesterone via the cyclooxygenase pathway in women with high and low orthostatic tolerance.

Indexed as

Adrenergic AgentsBlood Flow VelocityDose-Response Relationship, DrugFemaleGonadotropin-Releasing HormoneHemodynamicsHumansNorepinephrineOrthostatic IntoleranceProgesteroneSkinYoung AdultAdrenergic AgentsganirelixGonadotropin-Releasing HormoneNorepinephrineProgesterone

Identifiers

PMID21173076
PMCPMC3060374
OpenAlexW1834727479

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.