Preventive effects of quercetin against the onset of atherosclerosis-related acute aortic syndromes in mice

Masateru Kondo, Yuki Izawa-Ishizawa, Mitsuhiro Goda, Mayuko Hosooka, Yuu Kagimoto, Naoko Saito, Rie Matsuoka, Yoshito Zamami, Masayuki Chuma, Kenta Yagi, Kenshi Takechi, Koichi Tsuneyama, Keisuke Ishizawa

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Atherosclerosis-related acute aortic syndromes, such as aortic aneurysms or aortic dissection are life-threatening diseases. Since they develop suddenly and progress rapidly, the establishment of preventive strategies is urgently needed. Quercetin, a flavonoid abundant in various vegetables and fruits, is suggested to reduce the risk of cardiovascular disease. Therefore, in this study, the preventive effect of quercetin was evaluated using a mouse model of aortic aneurysm and dissection. The model was established by administering angiotensin II (Ang II) and β-aminopropionitrile (BAPN), a lysyl oxidase inhibitor, to mice to induce hypertension and degeneration of the elastic lamina, which would eventually result in the onset of an aortic aneurysm. Ang II, BAPN, and a nitric oxide synthase inhibitor was administered to induce aortic dissection via endothelial dysfunction. Quercetin (60 mg/kg/day) was administered 2 weeks before inducing aortic diseases by the end of the experiments (8 weeks in the aneurysm model, 6 weeks in the dissection model). It was found to reduce the incidence of aneurysm (from 72 to 45%), dissection (from 17 to 10%), and rupture (from 33 to 15%) in mice. Elastin degradation was ameliorated in the quercetin-treated mice compared to that in the mice without quercetin treatment (degradation score 2.9 ± 0.3 vs 2.2 ± 0.2). Furthermore, quercetin suppressed the expression of vascular cell adhesion molecule-1, macrophage infiltration, and pro-matrix metalloproteinase-9 activity. Our results suggest that quercetin might prevent the onset of atherosclerosis-related acute aortic syndromes through its anti-inflammatory and endothelial cell-protective effects.

Original languageEnglish
Article number7226
Pages (from-to)1-13
Number of pages13
JournalInternational journal of molecular sciences
Volume21
Issue number19
DOIs
Publication statusPublished - Oct 1 2020
Externally publishedYes

Keywords

  • Aortic aneurysm
  • Aortic dissection
  • Endothelial dysfunction
  • Flavonoids
  • Inflammation

ASJC Scopus subject areas

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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