Evidence map›Paper›PMID 23417865›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2013

AICAR administration ameliorates hypertension and angiogenic imbalance in a model of preeclampsia in the rat.

Christopher T Banek, Ashley J Bauer, Karen M Needham, Hans C Dreyer, Jeffrey S Gilbert

Abstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 9% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. The uteroplacental circulation at high altitude: adaptation and maladaptation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. AMP-Activated Protein (AMPK) in Pathophysiology of Pregnancy Complications.International journal of molecular sciences · 2018
    Review
  17. Article
  18. From apelin to exercise: emerging therapies for management of hypertension in pregnancy.Hypertension research : official journal of the Japanese Society of Hypertension · 2017
    Review
  19. Article
  20. 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

5 authors at 2 institutions in 1 country.

Christopher T BanekDepartment of Human Physiology, University of Oregon, Eugene, Oregon 97402-1240, USA.
Ashley J Bauer
Karen M Needham
Hans C Dreyer
Jeffrey S Gilbert
University of Oregon · USUniversity of Minnesota Medical Center · US

Funding

Exercise for the Treatment of Hypertension in Pregnancy: Mechanisms and MediatorsR01HL114096 · NHLBI · UNIVERSITY OF OREGON · PI GILBERT, JEFFREY S · 2012 to 2014
$695k
Muscle Regrowth during Physical Rehabilitation and Amino Acid SupplementationK01HD057332 · NICHD · UNIVERSITY OF TEXAS MED BR GALVESTON · PI DREYER, HANS CHRISTIAN · 2008 to 2012
$632k
NHLBI NIH HHS HL-114096NHLBI NIH HHS R01 HL114096NICHD NIH HHS HD057332NICHD NIH HHS K01 HD057332
6 · The paper itself

Abstract

Previous studies suggest restoration of angiogenic balance can lower blood pressure and improve vascular endothelium function in models of preeclampsia. Our laboratory has recently reported exercise training mitigates hypertension in an animal model of preeclampsia, but the mechanisms are unknown. AMP-activated protein kinase (AMPK) is stimulated during exercise and has been shown to increase expression of VEGF. Therefore, the purpose of this study was to determine whether AICAR (5-aminoimidazole-4-carboxamide-3-ribonucleoside), a potent AMPK stimulator, would increase circulating VEGF, improve angiogenic potential, decrease oxidative stress, and abrogate placental ischemia-induced hypertension. In rats, reduced uteroplacental perfusion pressure (RUPP) was induced on day 14 of gestation by introducing silver clips on the inferior abdominal aorta and ovarian arteries. AICAR was administered intraperitoneally (50 mg/kg b.i.d.) days 14-18, and blood pressure and tissues were collected on day 19. RUPP-induced hypertension was ameliorated (P < 0.05) with AICAR versus RUPP. AICAR increased (P < 0.05) plasma VEGF and decreased (P < 0.05) plasma soluble VEGF receptor-1 in the RUPP + AICAR versus RUPP. Antioxidant capacity was restored (P < 0.05) by AICAR in RUPP placenta. Renal and placental catalase activity was decreased (P < 0.05) in RUPP + AICAR versus RUPP. Angiogenic potential was increased (P < 0.05) in RUPP + AICAR versus RUPP. Fetal and placental weights were unaffected by AICAR. Placental AMPK phosphorylation was increased (P < 0.05) in RUPP + AICAR versus normal pregnant and RUPP. These findings suggest AICAR may be useful to mitigate angiogenic imbalance, renal, and placental oxidative stress and increase in blood pressure associated with RUPP hypertension. Furthermore, placental AMPK phosphorylation was observed only in the setting of ischemia.

Indexed as

Aminoimidazole CarboxamideAMP-Activated Protein KinasesAnimalsBlood PressureDisease Models, AnimalFemaleHeart RateHypertensionIschemiaKidneyNeovascularization, PhysiologicOxidative StressPhosphorylationPlacentaPre-EclampsiaPregnancyAICA ribonucleotideAminoimidazole CarboxamideAMP-Activated Protein KinasesFlt1 protein, ratRibonucleotidesVascular Endothelial Growth Factor Avascular endothelial growth factor A, ratVascular Endothelial Growth Factor Receptor-1

Identifiers

PMID23417865
PMCPMC3625906
OpenAlexW2121501560

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.