4.7 Article

Anti-inflammatory activities of Italian Chestnut and Eucalyptus honeys on murine RAW 264.7 macrophages

期刊

JOURNAL OF FUNCTIONAL FOODS
卷 87, 期 -, 页码 -

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ELSEVIER
DOI: 10.1016/j.jff.2021.104752

关键词

Honey; Inflammation; Mitochondrial respiration; Apoptosis; Wound healing; Antioxidant enzymes

资金

  1. Juan de la Cierva-Formacion post-doctoral contract
  2. Regione Calabria

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Chestnut and Eucalyptus honeys exhibited significant anti-inflammatory effects on LPS-stressed macrophages, reducing apoptosis, promoting wound healing, regulating antioxidant enzyme activities, and protecting mitochondrial respiration. These honeys modulated the expression of inflammatory biomarkers to decrease inflammation.
The aim of this study was to evaluate for the first time the anti-inflammatory effects of chestnut (Castanea sativa) and Eucalyptus (Eucalyptus occidentalis) honeys collected in Italy on murine RAW 264.7 macrophages stressed with the bacterial endotoxin lipopolysaccharide (LPS). Pre-treatment with the two honeys markedly decreased apoptosis and stimulated wound healing in macrophages stressed with LPS, where they also reduced the intracellular levels of ROS and nitrite. Additionally, treatment with LPS decreased the levels of glutathione and suppressed the antioxidant enzyme activities, which were significantly (p < 0.05) increased in the presence of the two honeys, through the modulation of Nrf2 expression; in LPS-stressed macrophages, Chestnut or Eucalyptus honeys protected against inflammation by regulating the main inflammatory biomarkers, including TNF-alpha, IL-10 and iNOS, through the decrease of NF-KB expression. Finally, they improved mitochondrial respiration and the main related parameters.

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