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char = g;code = 103
char = a;code = 97
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char = s;code = 115
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char = l;code = 108
char = l;code = 108
char = s;code = 115
char = .;code = 46
result sql = Protective effect of hydroxytyrosol and tyrosol against oxidative stress in kidney cells.
Protective effect of hydroxytyrosol and tyrosol against oxidative stress in kidney cells.
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char = l;code = 108
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char = t;code = 116
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char = t;code = 116
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char = i;code = 105
char = d;code = 100
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char = ;code = 32
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char = o;code = 111
char = l;code = 108
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = l;code = 108
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char = ;code = 32
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char = d;code = 100
char = ;code = 32
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char = h;code = 104
char = u;code = 117
char = s;code = 115
char = ;code = 32
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char = t;code = 116
char = e;code = 101
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char = h;code = 104
char = e;code = 101
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char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
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char = f;code = 102
char = r;code = 114
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char = H;code = 72
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char = 2;code = 50
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char = i;code = 105
char = n;code = 110
char = d;code = 100
char = u;code = 117
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char = e;code = 101
char = d;code = 100
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char = e;code = 101
char = .;code = 46
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char = y;code = 121
char = r;code = 114
char = o;code = 111
char = s;code = 115
char = o;code = 111
char = l;code = 108
char = ,;code = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = a;code = 97
char = d;code = 100
char = ,;code = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = i;code = 105
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = m;code = 109
char = o;code = 111
char = d;code = 100
char = e;code = 101
char = l;code = 108
char = ,;code = 44
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = n;code = 110
char = o;code = 111
char = t;code = 116
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = e;code = 101
char = r;code = 114
char = t;code = 116
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = y;code = 121
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = t;code = 116
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = e;code = 101
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = c;code = 99
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char = .;code = 46
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char = >;code = 62
result sql = Bioavailability studies in animals and humans fed with extravirgin olive oil demonstrated that hydroxytyrosol and tyrosol, the major simple phenolic compounds in extravirgin olive oil, are dose-dependently absorbed and excreted. Once absorbed, they undergo extensive metabolism; hydroxytyrosol and tyrosol concentrate mainly in the kidney, where they may exert an important role in the prevention of oxidative stress induced renal dysfunction. In this study we monitored the ability of hydroxytyrosol and tyrosol to protect renal cells (LLC-PK1) following oxidative damage induced by H2O2. Oxidative stress was evaluated by monitoring the changes of the membrane lipid fraction. Hydroxytyrosol exerted a significant antioxidant action, inhibiting the production of MDA, fatty acids hydroperoxides and 7-ketocholesterol, major oxidation products of unsaturated fatty acids and cholesterol, and thus protecting the cells from H2O2-induced damage. Tyrosol, instead, in this experimental model, did not exert any protective effect.

Publication: Toxicol Ind Health 2009 May-Jun ;25(4-5)::301-10. :doi: 10.1177/0748233709103028.
Publication Date: 2009 May-Jun
Study Author(s): Loru, D;Incani, A;Deiana, M;Corona, G;Atzeri, A;Melis, M P;Rosa, A;Dessì, M A;
Institution: Dipartimento di Biologia Sperimentale, Sezione di Patologia Sperimentale, Università degli Studi di Cagliari, Cittadella Universitaria SS 554, Km 4.5 09142 Monserrato (CA), Italy. [email protected]
Shortcut link to this study:
Bioavailability studies in animals and humans fed with extravirgin olive oil demonstrated that hydroxytyrosol and tyrosol, the major simple phenolic compounds in extravirgin olive oil, are dose-dependently absorbed and excreted. Once absorbed, they undergo extensive metabolism; hydroxytyrosol and tyrosol concentrate mainly in the kidney, where they may exert an important role in the prevention of oxidative stress induced renal dysfunction. In this study we monitored the ability of hydroxytyrosol and tyrosol to protect renal cells (LLC-PK1) following oxidative damage induced by H2O2. Oxidative stress was evaluated by monitoring the changes of the membrane lipid fraction. Hydroxytyrosol exerted a significant antioxidant action, inhibiting the production of MDA, fatty acids hydroperoxides and 7-ketocholesterol, major oxidation products of unsaturated fatty acids and cholesterol, and thus protecting the cells from H2O2-induced damage. Tyrosol, instead, in this experimental model, did not exert any protective effect.
PMID: 19651801

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