Evidence map›Paper›PMID 28626073›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2017

Increased vascular and uteroplacental matrix metalloproteinase-1 and -7 levels and collagen type I deposition in hypertension in pregnancy: role of TNF-α.

Wei Li, Ning Cui, Marc Q Mazzuca, Karina M Mata, Raouf A Khalil

Open access · bronzeAbstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
3.6field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Guidelines for authors and reviewers on antibody use in physiology studies.American journal of physiology. Heart and circulatory physiology · 2018
    Guideline
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Increased CaBiochemical pharmacology · 2023
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Collagen at the maternal-fetal interface in human pregnancy.International journal of biological sciences · 2020
    Review
  17. Role of B1 and B2 lymphocytes in placental ischemia-induced hypertension.American journal of physiology. Heart and circulatory physiology · 2019
    Article
  18. Article
  19. Review
  20. Statistical considerations in reporting cardiovascular research.American journal of physiology. Heart and circulatory physiology · 2018
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Wei LiVascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
Ning CuiVascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
Marc Q MazzucaVascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
Karina M MataVascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
Raouf A KhalilVascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts raouf_khalil@hms.harvard.edu.
Harvard University · USBrigham and Women's Hospital · US

Funding

Mechano-Sensitive Hypoxia-Inducible Factor-MMP Pathway in Venous InsufficiencyR21HL111775 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI KHALIL, RAOUF A · 2013 to 2014
$475k
NHLBI NIH HHS R21 HL111775
6 · The paper itself

Abstract

Preeclampsia is a pregnancy-related disorder manifested as maternal hypertension in pregnancy (HTN-Preg) and fetal growth restriction. Placental ischemia could be an initiating event that leads to abnormal vascular and uteroplacental remodeling in HTN-Preg; however, the molecular targets and intermediary mechanisms involved are unclear. We tested the hypothesis that placental ischemia could target vascular and uteroplacental matrix metalloproteinases (MMPs) through an inflammatory cytokine-mediated mechanism. MMP levels and distribution were measured in the aorta, uterus, and placenta of normal pregnant (Preg) rats and pregnant rats with reduced uterine perfusion pressure (RUPP). Maternal blood pressure was higher and the litter size and pup weight were lower in RUPP compared with Preg rats. Gelatin zymography showed prominent uterine MMP-2 and MMP-9 activity that was dependent on the amount of loaded protein. At saturating protein loading, both gelatin and casein zymography revealed two additional bands corresponding to MMP-1 and MMP-7 that were greater in the aorta, uterus, and placenta of RUPP compared with Preg rats. Western blots and immunohistochemistry confirmed increased MMP-1 and MMP-7 in the aorta, uterus, and placenta of RUPP versus Preg rats. The levels of MMP-1 and MMP-7 substrate collagen type I were greater in tissues of RUPP compared with Preg rats. In organ culture, TNF-α increased MMP-1 and MMP-7 in the aorta, uterus, and placenta of Preg rats, and a TNF-α antagonist prevented the increases in MMPs in tissues of RUPP rats. Thus, placental ischemia, possibly through TNF-α, increases vascular and uteroplacental MMP-1 and MMP-7, which, in turn, alter collagen deposition and cause inadequate tissue remodeling in HTN-Preg. Cytokine antagonists may reverse the increase in MMP-1 and MMP-7 expression/activity and, in turn, restore proper vascular and uteroplacental remodeling in HTN-Preg and preeclampsia.

Indexed as

PlacentationVascular RemodelingAnimalsAortaBlood PressureCollagen Type IDisease Models, AnimalFemaleGestational AgeHypertension, Pregnancy-InducedImmunoglobulin Fc FragmentsIschemiaMatrix Metalloproteinase 1Matrix Metalloproteinase 7Organ Culture TechniquesPlacentaCollagen Type IImmunoglobulin Fc FragmentsMatrix Metalloproteinase 1Matrix Metalloproteinase 7MMP1 protein, ratTumor Necrosis Factor-alphaaortaplacentapreeclampsiaremodelingtumor necrosis factor-αuterus

Identifiers

PMID28626073
PMCPMC5625170
OpenAlexW2624673773

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.