Evidence map›Paper›PMID 25752363›Full record

ArticleJournal of atherosclerosis and thrombosis2015

Angiotensin Ⅱ Activates MCP-1 and Induces Cardiac Hypertrophy and Dysfunction via Toll-like Receptor 4.

Susumu Matsuda, Seiji Umemoto, Koichi Yoshimura, Shinichi Itoh, Tomoaki Murata, Tohru Fukai, Masunori Matsuzaki

Open access · hybridAbstract read
In one paragraph

Article in Journal of atherosclerosis and thrombosis, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
4.5field-weighted citation impact, top 6% 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

44 citing papers in PubMed, 67 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Toll-like receptors in cardiac hypertrophy.Frontiers in cardiovascular medicine · 2023
    Review
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  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

7 authors at 3 institutions in 2 countries.

Susumu MatsudaDepartment of Medicine and Clinical Science, Yamaguchi University Graduate School of Medicine.
Seiji Umemoto
Koichi Yoshimura
Shinichi Itoh
Tomoaki Murata
Tohru Fukai
Masunori Matsuzaki
Yamaguchi University · JPUniversity of Illinois Chicago · USYamaguchi University Hospital · JP

Funding

Vascular Extracellular Superoxide Dismutase ModulationR01HL070187 · NHLBI · UNIVERSITY OF ILLINOIS AT CHICAGO · PI FUKAI, TOHRU · 2002 to 2017
$4.2M
SUMOylation of Cu transport protein Atox1 in AtherosclerosisI01BX001232 · VA · JESSE BROWN VA MEDICAL CENTER · PI TOHRU FUKAI · 2012 to 2026
–
BLRD VA I01 BX001232NHLBI NIH HHS R01 HL 070187NHLBI NIH HHS R01 HL070187
6 · The paper itself

Abstract

aimAngiotensin Ⅱ(Ang Ⅱ) produces reactive oxygen species (ROS), thus contributing to the development of cardiac hypertrophy and subsequent heart failure, and stimulates the expression of monocyte chemoattractant protein-1 (MCP-1). In addition, Toll-like receptor 4 (TLR4) is involved in the upregulation of MCP-1. In order to clarify whether TLR4 is involved in the onset of cardiac dysfunction caused by Ang Ⅱ stimulation, we investigated the effects of TLR4 on oxidative stress, the MCP-1 expression and cardiac dysfunction in mice with Ang Ⅱ-induced hypertension.

methodsTLR4-deficient (Tlr4(lps-d)) and wild-type (WT) mice were randomized into groups treated with Ang Ⅱ, norepinephrine (NE) or a subdepressor dose of the Ang Ⅱreceptor blocker irbesartan (IRB) and Ang Ⅱ for two weeks.

resultsAng Ⅱ and NE similarly increased systolic blood pressure in all drug-treated groups compared to that observed in the control group among both WT and Tlr4(lps-d) mice (p<0.05). In the WT mice, Ang Ⅱ induced cardiac hypertrophy as well as vascular remodeling and perivascular fibrosis of the intramyocardial arteries and monocyte/macrophage infiltration in the heart (p<0.05). Furthermore, Ang Ⅱ treatment decreased the left ventricular diastolic function and resulted in a greater left ventricular end-systolic dimension (p<0.05) in addition to producing a five-fold increase in the NADPH oxidase activity, ROS content and MCP-1 expression (p<0.05). In contrast, the Tlr4(lps-d) mice showed little effects of Ang Ⅱ on these indices. In the WT mice, IRB treatment reversed these changes compared to that seen in the mice treated with Ang Ⅱ alone. NE produced little effect on any of the indices in either the WT or Tlr4(lps-d) mice.

conclusionsTLR4 may be involved in the processes underlying the increased oxidative stress, selectively activated MCP-1 expression and cardiac hypertrophy and dysfunction seen in cases of Ang Ⅱ- induced hypertension.

Indexed as

Adrenergic alpha-AgonistsAngiotensin IIAngiotensin II Type 1 Receptor BlockersAnimalsBiphenyl CompoundsCardiomegalyChemokine CCL2HypertensionIrbesartanMaleMiceMice, Inbred BALB CNorepinephrineOxidative StressTetrazolesToll-Like Receptor 4Adrenergic alpha-AgonistsAngiotensin IIAngiotensin II Type 1 Receptor BlockersBiphenyl CompoundsChemokine CCL2IrbesartanNorepinephrineTetrazolesToll-Like Receptor 4Vasoconstrictor Agents

Identifiers

PMID25752363
PMCPMC5509415
OpenAlexW1972377404

What OpenQuestion holds

Textmetadata
LicenceTDM
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.