Evidence map›Paper›PMID 33275518›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2021

Endothelial cell disruption drives increased blood-brain barrier permeability and cerebral edema in the Dahl SS/jr rat model of superimposed preeclampsia.

Kenji J Maeda, Daniel M McClung, Kurt C Showmaker, Junie P Warrington, Michael J Ryan, Michael R Garrett, Jennifer M Sasser

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 16% 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

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

  1. Guidelines for assessing maternal cardiovascular physiology during pregnancy and postpartum.American journal of physiology. Heart and circulatory physiology · 2024
    Guideline
  2. Article
  3. Exploring the Mechanism of Postpartum Cognitive Dysfunction in a Preeclampsia Rat Model via Multimodal Imaging.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. AT1-AA Infusion during Pregnancy Impairs CBF Autoregulation Postpartum.International journal of cerebrovascular disease and stroke · 2023
    Article
  13. Article
  14. Article
  15. 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.

Kenji J MaedaDepartment of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi.
Daniel M McClungDepartment of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi.
Kurt C ShowmakerDepartment of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi.
Junie P WarringtonDepartment of Neurology, University of Mississippi Medical Center, Jackson, Mississippi.
Michael J RyanDepartment of Physiology, University of Mississippi Medical Center, Jackson, Mississippi.ORCID 0000-0002-5679-6031
Michael R GarrettDepartment of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi.ORCID 0000-0001-5234-7928
Jennifer M SasserDepartment of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, Mississippi.ORCID 0000-0001-7161-5502
Jackson Memorial Hospital · USUniversity of Mississippi Medical Center · US

Funding

Training and Mentoring Core P20GM103476 · NIGMS · UNIVERSITY OF SOUTHERN MISSISSIPPI · PI MICHAEL R GARRETT · 2012 to 2026
$60.2M
Role of obesity in preeclamptic pregnancy.P20GM121334 · NIGMS · UNIVERSITY OF MISSISSIPPI MED CTR · PI Babbette LaMarca, Jane F Reckelhoff · 2017 to 2026
$26.4M
The role of leptin in autoimmune-associated hypertensionP20GM104357 · NIGMS · UNIVERSITY OF MISSISSIPPI MED CTR · PI TAYLOR, ERIN BASSFORD · 2013 to 2022
$23.4M
Hypertension and Cardiorenal Research Training ProgramT32HL105324 · NHLBI · UNIVERSITY OF MISSISSIPPI MED CTR · PI Joey P. Granger · 2010 to 2026
$7.8M
Mechanisms of Cardiorenal Disease following PreeclampsiaR01HL134711 · NHLBI · UNIVERSITY OF MISSISSIPPI MED CTR · PI GARRETT, MICHAEL R · 2017 to 2021
$1.9M
Placental Ischemia, Hypertension and HemodyanmicsR01HL136684 · NHLBI · UNIVERSITY OF MISSISSIPPI MED CTR · PI DRUMMOND, HEATHER A, GRANGER, JOEY P. · 2017 to 2020
$1.7M
Genetic Targets of Hypertension End Organ DamageR01HL137673 · NHLBI · UNIVERSITY OF MISSISSIPPI MED CTR · PI GARRETT, MICHAEL R · 2018 to 2021
$1.6M
HHS | NIH | National Heart, Lung, and Blood Institute (NHBLI) R01HL134711HHS | NIH | National Heart, Lung, and Blood Institute (NHBLI) R01HL136684HHS | NIH | National Heart, Lung, and Blood Institute (NHBLI) T32HL105324NHLBI NIH HHS R01 HL134711NHLBI NIH HHS R01 HL136684NHLBI NIH HHS R01 HL137673NHLBI NIH HHS T32 HL105324NIGMS NIH HHS P20 GM103476NIGMS NIH HHS P20 GM104357NIGMS NIH HHS P20 GM121334
6 · The paper itself

Abstract

Preeclampsia is characterized by increases in blood pressure and proteinuria in late pregnancy, and neurological symptoms can appear in the form of headaches, blurred vision, cerebral edema, and, in the most severe cases, seizures (eclampsia). The causes for these cerebral manifestations remain unknown, so the use of animal models that mimic preeclampsia is essential to understanding its pathogenesis. The Dahl salt-sensitive (Dahl SS/jr) rat model develops spontaneous preeclampsia superimposed on chronic hypertension; therefore, we hypothesized that the Dahl SS/jr rat would display cerebrovascular features similar to those seen in human preeclampsia. Furthermore, we predicted that this model would allow for the identification of mechanisms underlying these changes. The pregnant Dahl SS/jr rat displayed increased cerebral edema and blood-brain barrier disruption despite tighter control of cerebral blood flow autoregulation and vascular smooth muscle myogenic tone. Analysis of cerebral endothelial cell morphology revealed increased opening of tight junctions, basement membrane dissolution, and vesicle formation. RNAseq analysis identified that genes related to endothelial cell tight junctions and blood-brain barrier integrity were differentially expressed in cerebral vessels from pregnant Dahl SS/jr compared with healthy pregnant Sprague Dawley rats. Overall, our data reveal new insights into mechanisms involved in the cerebrovascular dysfunction of preeclampsia.

Indexed as

Capillary PermeabilityAnimalsBasement MembraneBlood-Brain BarrierBrain EdemaCytoplasmic VesiclesEndothelial CellsEndothelium, VascularFemalePre-EclampsiaPregnancyRatsRats, Inbred DahlRats, Sprague-DawleyTight Junctionsautoregulationcerebral blood flowelectron microscopyfluorescent dextranmyogenic tone

Identifiers

PMID33275518
PMCPMC8082793
OpenAlexW3107458197

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.