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KMID : 1161420190220090919
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Journal of Medicinal Food
2019 Volume.22 No. 9 p.919 ~ p.927
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Antiatherosclerotic Properties of Echinodorus grandiflorus (Cham. & Schltdl.) Micheli: From Antioxidant and Lipid-Lowering Effects to an Anti-Inflammatory Role
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Gasparotto Francielly Mourao
Palozi Rhanany Alan Calloi
da Silva Claudio Henrique Francisconi
Pauli Karoline Bach
Donadel Guilherme
Lourenco Bruno Henrique Lopes Botelho
Nunes Bruna Caroline
dos Reis Livero Francislaine Aparecida
de Souza Lauro Mera
Lourenco Emerson Luiz Botelho
Kassuy Candida Aparecida Leite
Gasparotto Arquimedes Junior
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Abstract
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Echinodorus grandiflorus is an important medicinal plant species that is native to South America. Despite extensive popular usage as a hypolipidemic drug, its effects as an atheroprotective agent remain unknown. The aim of this study was to evaluate the effects of an ethanol-soluble fraction that was obtained from E. grandiflorus (ESEG) leaves against the development of atherosclerosis in rabbits. Male rabbits received a diet that was supplemented with 1% cholesterol (cholesterol-rich diet [CRD]) for 60 days. After 30 days of the CRD, the animals were divided into five groups (n?=?6) and treated with ESEG (10, 30, and 100?mg/kg), simvastatin (2.5?mg/kg), or vehicle once daily for 30 days. The negative control group was fed a cholesterol-free diet and treated orally with vehicle. At the end of 60 days, serum lipids, oxidized low-density lipoprotein, thiobarbituric acid reactive substances, nitrotyrosine, and serum interleukin 1 beta (IL-1β), IL-6, soluble intercellular adhesion molecule-1 (sICAM-1), and soluble vascular cell adhesion molecule-1 (sVCAM-1) levels were determined. Samples from the aortic arch and thoracic segment were also collected to investigate the tissue antioxidant defense system and perform histopathological analysis. Oral ESEG administration significantly reduced serum lipid levels in CRD-fed rabbits. This treatment also modulated the arterial antioxidant defense system by reducing lipid and protein oxidation. Similarly, serum IL-1β, IL-6, sICAM-1, and sVCAM-1 levels significantly decreased, accompanied by a reduction of atherosclerotic lesions in all arterial branches. These findings suggest that ESEG may be a new herbal medicine that can be directly applied for the treatment and prevention of atherosclerotic disease.
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KEYWORD
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alismataceae, anti-inflammatory, antioxidant, atherosclerosis, dyslipidemia
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