4.2 Article

Anti-hyperlipidemic effects of Campomanesia xanthocarpa aqueous extract and its modulation on oxidative stress and genomic instability in Wistar rats

Publisher

TAYLOR & FRANCIS INC
DOI: 10.1080/15287394.2019.1683925

Keywords

Comet assay; dyslipidemia; micronucleus test; Myrtaceae; tyloxapol

Funding

  1. Universidade Luterana do Brasil (ULBRA), Brazil
  2. Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil
  3. Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES), Brazil [001]
  4. Fundacao de Amparo a Pesquisa do Estado do Rio Grande do Sul (FAPERGS), Brazil [17/2551-0001029-9]

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The use of natural products from herbs may be a therapeutic option in dyslipidemia treatment. Campomanesia xanthocarpa (Mart.) O. Berg (Myrtaceae) leaves have been used to decrease cholesterol levels. However, studies to determine activities of this plant on triglycerides metabolism have received little attention. The aim of this study was to examine anti-hyperlipidemic effects of a C. xanthocarpa aqueous leaf extract (CxAE) and assess protective actions against oxidative stress and DNA damage. The tyloxapol-induced hyperlipidemia model was used in Wistar rats. Rats were treated orally with CxAE either 250 or 500 mg/kg/day for 7 days prior to tyloxapol administration. Biochemical parameters, oxidative stress levels, and genomic instability were assessed in several tissues. CxAE decreased cholesterol and triglyceride levels in serum and hepatic and renal DNA damage in tyloxapol-treated rats. There was no marked effect on the micronucleus frequency in bone marrow. The extract increased catalase activity and decreased glutathione S-transferase activity in kidney tissue. CxAE showed anti-hyperlipidemic effects, improved oxidative parameters, and protected DNA against damage induced by tyloxapol-induced hyperlipidemia, suggesting C. xanthocarpa leaves may be useful in preventing dyslipidemias.

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