Evidence map›Paper›PMID 30771259›Full record

ArticleBJOG : an international journal of obstetrics and gynaecology2019

Placental growth factor blunts uterine artery responses to angiotensin II.

J Espinoza, A Betancourt, M A Belfort, A A Shamshirsaz, K A Fox, C Yallampalli

Open access · greenAbstract read
In one paragraph

Article in BJOG : an international journal of obstetrics and gynaecology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed, 6 citations in OpenAlex.

  1. Therapeutic Interventions for Preeclampsia: Integrating Placental and Maternal Perspectives.American journal of reproductive immunology (New York, N.Y. : 1989) · 2026
    Review
  2. Review
  3. Review
  4. Article
  5. Review
  6. PlGF Immunological Impact during Pregnancy.International journal of molecular sciences · 2020
    Review
  7. 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

6 authors at 2 institutions in 1 country.

J EspinozaDepartment of Obstetrics and Gynecology, Baylor College of Medicine, Texas Children's Hospital-Pavilion for Women, Houston, TX, USA.
A BetancourtDepartment of Obstetrics and Gynecology, Baylor College of Medicine, Texas Children's Hospital-Pavilion for Women, Houston, TX, USA.
M A BelfortDepartment of Obstetrics and Gynecology, Baylor College of Medicine, Texas Children's Hospital-Pavilion for Women, Houston, TX, USA.
A A ShamshirsazDepartment of Obstetrics and Gynecology, Baylor College of Medicine, Texas Children's Hospital-Pavilion for Women, Houston, TX, USA.
K A FoxDepartment of Obstetrics and Gynecology, Baylor College of Medicine, Texas Children's Hospital-Pavilion for Women, Houston, TX, USA.
C YallampalliDepartment of Obstetrics and Gynecology, Baylor College of Medicine, Texas Children's Hospital-Pavilion for Women, Houston, TX, USA.
Baylor College of Medicine · USTexas Children's Hospital · US

Funding

SEX STEROID HORMONES AND CALCITONIN GENE RELATED PEPTIDER01HL058144 · NHLBI · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI CHAUHAN, MADHU LATA S., YALLAMPALLI, CHANDRASEKHAR · 1998 to 2022
$6.9M
Molecular and Vascular MRI of Placenta AccretaR01HD094347 · NICHD · BAYLOR COLLEGE OF MEDICINE · PI ANNAPRAGADA, ANANTH V, FOX, KARIN ANNELIESE · 2018 to 2022
$2.2M
Mechanisms for Sex Differences in Metabolic ProgrammingR01DK114689 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI BLESSON, CHELLAKKAN SELVANESAN, YALLAMPALLI, CHANDRASEKHAR · 2018 to 2021
$1.6M
Baylor College of Medicine (BCM)NHLBI NIH HHS R01 HL058144NICHD NIH HHS R01 HD094347NIDDK NIH HHS R01 DK114689
6 · The paper itself

Abstract

objectiveChanges in maternal serum concentration of placental growth factor (PlGF) and vascular response to intravascular infusion of Angiotensin II (Ang II) follow a bell-shaped curve pattern during gestation. This study evaluates the effects of PlGF and soluble vascular endothelial growth factor receptor-1 (sFlt-1) on responses of human uterine arteries (UA) to Ang II.

designExperimental.

settingBaylor College of Medicine and Texas Children's Hospital-Pavilion for Women. SAMPLE: Uterine arteries samples (n = 14) were obtained from normotensive women undergoing caesarean hysterectomy at ≥32 weeks.

methodsUterine arteries rings were incubated with (1) Krebs solution; (2) PlGF at 1.45, 14.5, and 500 pg/ml; (3) sFlt-1 at 2 ng/ml; and (4) a combination of sFlt-1, and PlGF. Dose-contraction responses to Ang II were determined in UA rings incubated in the above-mentioned conditions. Responses were also measured in presence of L-NAME or inhibitors of endothelium-derived hyperpolarising factor: apamine and charybdotoxin. The t-test was used for comparisons.

main outcome measureChanges in vascular reactivity of UA rings.

resultsPlGF blunted (P = 0.03) and sFlt-1 increased (P <0.01) the UA maximum responses to Ang II. A combination of sFlt-1 and PlGF blunted UA responses to Ang II (P < 0.05). l-NAME, apamine, and charybdotoxin reversed the relaxation effects of PlGF on UA responses to Ang II (P < 0.05).

conclusionsPlGF contributes to the blunted vascular response to Angiotensin II during normotensive pregnancies and sFlt-1 appears to attenuate this effect. PlGF and sFlt-1 may contribute to the regulation of vascular tone during pregnancy by altering the vascular response to Angiotensin II.

fundingBaylor College of Medicine. TWEETABLE ABSTRACT: Placental growth factor and soluble vascular endothelial growth factor receptor-1 modulate the uterine artery response to Angiotensin II in normotensive pregnant women.

Indexed as

AdultAngiotensin IIBlood PressureFemaleHumansPlacenta Growth FactorPregnancyUterine ArteryVascular Endothelial Growth Factor Receptor-1Vasoconstrictor AgentsAngiotensin IIPGF protein, humanPlacenta Growth FactorVascular Endothelial Growth Factor Receptor-1Vasoconstrictor AgentsAngiotensin IIplacental growth factorresponsesFlt-1vascular

Identifiers

PMID30771259
PMCPMC7004274
OpenAlexW2915049312

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.