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  • Title: An SOD rich melon extract Extramel prevents aortic lipids and liver steatosis in diet-induced model of atherosclerosis.
    Author: Décordé K, Ventura E, Lacan D, Ramos J, Cristol JP, Rouanet JM.
    Journal: Nutr Metab Cardiovasc Dis; 2010 Jun; 20(5):301-7. PubMed ID: 19695852.
    Abstract:
    BACKGROUND AND AIMS: Oxidative stress has been involved in the early steps of atherosclerosis and previous studies on hypercholesterolemic hamsters have shown that non-enzymatic antioxidant could prevent fatty streak formation. Therefore, we investigated whether a melon juice extract (Extramel((R))) rich in superoxide dismutase (SOD) would prevent the development of early atherosclerosis. METHODS AND RESULTS: The effects of Extramel((R)) on plasma cholesterol, aortic fatty streak formation, hepatic steatosis, superoxide anion tissue production and NAD(P)H oxidase expression were studied in hamsters fed with an atherogenic diet (HF), receiving by gavage either water or Extramel((R)) at 0.7, 2.8 or 5.6mg/d. After 12 weeks of oral administration, Extramel((R)) lowered plasma cholesterol and non-HDL cholesterol and induced blood and liver SOD activities. It also strongly reduced the area of aortic fatty streak by 49-85%, cardiac (45%) and liver (67%) production of superoxide anion and liver p22(phox) subunit of NAD(P)H oxidase expression by 66%, and attenuated the development of hepatic steatosis. CONCLUSION: These findings support the view that chronic consumption of melon juice extract rich in SOD has potential beneficial effects with respect to the development of atherosclerosis and liver steatosis, emphasizing its use as potential dietary therapy.
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