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Fucus vesiculosus L. (Bladderwrack) modulates oxidative stress and inflammation on high-fat diet induced obesity in mice

By: Sahar Khateeb, Germine M. Hamdy

Key Words: Fucus vesiculosus l, Obesity, Non-alcoholic fatty liver disease, Inflammation, Oxidative stress, High fat diet.

Int. J. Biosci. 14(6), 184-196, June 2019.


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High dietary levels of lipid consumption cause ectopic fat accumulation and trigger non-alcoholic fatty liver disease (NAFLD) which leads to liver injury. This study aims to investigate the hepatoprotective effect of Fucus vesiculosus L. (Fv) seaweed on the high fat diet (HFD) induced obesity in mice. Forty adult male C57BL/6J mice were divided into 4 groups. Group 1 (control) and group 2 (HFD); animals fed on standard and HFD respectively. Group 3 (Fv) and group 4 (HFD + Fv); animals supplemented with Fv (575 mg/kg body weight/day) orally by gavage along with standard and high fat diet respectively for 6 consecutive weeks. Body weights, liver enzymes, lipid profile, oxidative stress markers and inflammatory cytokines were evaluated. Liver histopathological fatty changes were investigated. The mRNA expression levels of sterol regulatory element binding protein (SREBP-1c), fatty acid synthase (FAS), tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6) and heme oxygenase-1 (HO-1) genes were quantitated. The transcriptional activity of nuclear factor E2-related factor 2 (N2rf) and nuclear factor kappa beta (NF-κB) were assessed by DNA-binding-based ELISA. Results revealed that Fv supplementation along with HFD regulated body weight gain, improved all biochemical parameters, alleviated liver steatosis, reduced fatty vacuoles and downregulated the SREBP-1c, FAS, TNF-α and IL-6 genes expression. Conversely, Nrf2-inducing Heme oxygenase-1 (HO-1) was activated with concomitant increase in HO-1mRNA expression and enzymatic activity levels in liver tissue. Furthermore, Fv relieves inflammation by reducing the transcriptional activity of the NF-κB. In conclusion, Fv seaweed may be a promising candidate for liver injury induced by high-fat consumption.

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Fucus vesiculosus L. (Bladderwrack) modulates oxidative stress and inflammation on high-fat diet induced obesity in mice

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Sahar Khateeb, Germine M. Hamdy.
Fucus vesiculosus L. (Bladderwrack) modulates oxidative stress and inflammation on high-fat diet induced obesity in mice.
Int. J. Biosci. 14(6), 184-196, June 2019.
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