Beneficial effects of Ilex paraguariensis in the prevention of obesity-associated metabolic disorders in mice.

Autor: Valença HDM; Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil., E Silva CP; Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil., de Brito Gitirana L; Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil., Valença SS; Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil., Lanzetti M; Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
Jazyk: angličtina
Zdroj: Phytotherapy research : PTR [Phytother Res] 2022 Feb; Vol. 36 (2), pp. 1032-1042. Date of Electronic Publication: 2022 Jan 13.
DOI: 10.1002/ptr.7377
Abstrakt: Obesity is a chronic condition involving inflammation and oxidative stress that commonly predisposes affected individuals to develop metabolic disorders. We hypothesize that Ilex paraguariensis (IP) can modulate oxidative stress and inflammation underpinning metabolic disorders caused by obesity. C57BL/6 mice were fed a high-fat diet (HFD group) for 12 weeks. Concomitantly, some mice were treated with roasted IP (15 mg/ml - HFD + IP) or dimethyl fumarate (DMF) as a positive control (2 mg/ml - HFD + DMF). The control group received standard chow and water ad libitum. Histological analyses of fat tissue and liver, and quantification of mediators related to oxidative stress (Kelch-like ECH-associated protein 1/NF-E2-related factor 2, NADP(H) quinone oxidoreductase-1 [NQO1], heme oxygenase 1 [HO1], and superoxide dismutase) as well as metabolic profile blood biomarkers (glucose, leptin, resistin, high-density lipoproteins [HDLs], and triglycerides) were performed. Metabolic disorders were prevented in mice treated with IP, as evidenced by the observation that glucose, HDL, and resistin levels were similar to those assessed in the control group. Morphological analyses showed that both IP and DMF treatments prevented hepatic steatosis and adipocyte hypertrophy in visceral adipose tissue. Finally, although the antioxidant response stimulated by IP was quite limited, significant effects were found on NQO1 and HO1 expression. In conclusion, IP has promising preventative effects on the development of metabolic disorders caused by obesity.
(© 2022 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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