Hydroxytyrosol supplementation ameliorates the metabolic disturbances in white adipose tissue from mice fed a high-fat diet through recovery of transcription factors Nrf2, SREBP-1c, PPAR-γ and NF-κB.
Biomed Pharmacother
; 109: 2472-2481, 2019 Jan.
Article
em En
| MEDLINE
| ID: mdl-30551508
ABSTRACT
BACKGROUND:
White adipose tissue (WAT) have a relevant metabolic and inflammatory function, in overweight or obesity conditions. In this regard, the WAT under over feeding nutrition present a significant increment in oxidative stress, pro-inflammatory status and depletion of n-3 long chain polyunsaturated fatty acid. Hydroxytyrosol (HT) is a polyphenol with important cytoprotective effects, and this molecule can modulate the gene expression, transcription factors and enzymatic activity.OBJECTIVE:
Therefore, the purpose of this study was evaluate the anti-inflammatory, anti-oxidant and anti-lipogenic effects of HT supplementation mice and the molecular adaptations involved, on dysfunctional WAT from high-fat diet (HFD)-fed mice. METHODS ANDRESULTS:
Male C57BL/6 J mice received (i) control diet (10% fat); (ii) control diet + HT (daily doses of 5 mg kg body weight), (iii) HFD (60% fat); or (iv) HFD + HT for 12 weeks. HFD-fed mice exhibited (i) WAT hypertrophy; (ii) oxidative stress and depletion of antioxidant defenses, (iii) increased lipogenesis and pro-inflammatory status, (iv) depletion of n-3 LCPUFA and (v) up-regulation of NF-κB and SREBP 1c with down-regulation Nrf2, and PPAR-γ. HT supplementation attenuated the metabolic impairment produced by HFD in WAT, attenuating increment of NF-κB and SREBP 1c, and increasing the activity of Nrf2 and PPAR-γ.CONCLUSION:
Supplementation with HT improve the WAT dysfunction induced by HDF in mice through the modulation of transcription factors NF-κB, Nrf2, SREBP-1c and PPAR-γ as well as their target genes, involved in inflammation, antioxidant defenses and lipogenesis.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Álcool Feniletílico
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NF-kappa B
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PPAR gama
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Proteína de Ligação a Elemento Regulador de Esterol 1
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Fator 2 Relacionado a NF-E2
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Tecido Adiposo Branco
Tipo de estudo:
Etiology_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article