|
|
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char = f;code = 102
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
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char = ;code = 32
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char = c;code = 99
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char = b;code = 98
char = l;code = 108
char = e;code = 101
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char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
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char = v;code = 118
char = i;code = 105
char = t;code = 116
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char = r;code = 114
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char = n;code = 110
char = d;code = 100
char = ;code = 32
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char = t;code = 116
char = o;code = 111
char = t;code = 116
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = a;code = 97
char = c;code = 99
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char = i;code = 105
char = v;code = 118
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
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char = l;code = 108
char = i;code = 105
char = v;code = 118
char = e;code = 101
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char = o;code = 111
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char = y;code = 121
char = p;code = 112
char = h;code = 104
char = e;code = 101
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char = o;code = 111
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char = s;code = 115
char = ;code = 32
char = o;code = 111
char = l;code = 108
char = e;code = 101
char = u;code = 117
char = r;code = 114
char = o;code = 111
char = p;code = 112
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = x;code = 120
char = y;code = 121
char = t;code = 116
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 = 46
result sql = Identification of the factors responsible for the in vitro pro-oxidant and cytotoxic activities of the olive polyphenols oleuropein and hydroxytyrosol.
Identification of the factors responsible for the in vitro pro-oxidant and cytotoxic activities of the olive polyphenols oleuropein and hydroxytyrosol.char = T;code = 84
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char = e;code = 101
char = ;code = 32
char = o;code = 111
char = l;code = 108
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = l;code = 108
char = y;code = 121
char = p;code = 112
char = h;code = 104
char = e;code = 101
char = n;code = 110
char = o;code = 111
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = l;code = 108
char = e;code = 101
char = u;code = 117
char = r;code = 114
char = o;code = 111
char = p;code = 112
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = x;code = 120
char = y;code = 121
char = t;code = 116
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 = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = p;code = 112
char = o;code = 111
char = r;code = 114
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = c;code = 99
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = t;code = 116
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char = ;code = 32
char = p;code = 112
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char = o;code = 111
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = e;code = 101
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char = e;code = 101
char = x;code = 120
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = u;code = 117
char = l;code = 108
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = h;code = 104
char = y;code = 121
char = d;code = 100
char = r;code = 114
char = o;code = 111
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = p;code = 112
char = e;code = 101
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char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = H;code = 72
char = 2;code = 50
char = O;code = 79
char = 2;code = 50
char = );code = 41
char = ;code = 32
char = u;code = 117
char = n;code = 110
char = d;code = 100
char = e;code = 101
char = r;code = 114
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char = s;code = 115
char = t;code = 116
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = a;code = 97
char = r;code = 114
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = d;code = 100
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = c;code = 99
char = i;code = 105
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = a;code = 97
char = c;code = 99
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char = o;code = 111
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char = s;code = 115
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = p;code = 112
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = i;code = 105
char = b;code = 98
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = d;code = 100
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = d;code = 100
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = o;code = 111
char = t;code = 116
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = o;code = 111
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char = ;code = 32
char = r;code = 114
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char = t;code = 116
char = a;code = 97
char = r;code = 114
char = d;code = 100
char = i;code = 105
char = n;code = 110
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char = i;code = 105
char = t;code = 116
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char = e;code = 101
char = ;code = 32
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char = t;code = 116
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = f;code = 102
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = p;code = 112
char = r;code = 114
char = e;code = 101
char = t;code = 116
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = i;code = 105
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char = ;code = 32
char = v;code = 118
char = i;code = 105
char = t;code = 116
char = r;code = 114
char = o;code = 111
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = I;code = 73
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 = s;code = 115
char = t;code = 116
char = u;code = 117
char = d;code = 100
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = s;code = 115
char = y;code = 121
char = s;code = 115
char = t;code = 116
char = e;code = 101
char = m;code = 109
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = c;code = 99
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char = e;code = 101
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char = a;code = 97
char = l;code = 108
char = u;code = 117
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = p;code = 112
char = o;code = 111
char = n;code = 110
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = o;code = 111
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char = t;code = 116
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = m;code = 109
char = m;code = 109
char = o;code = 111
char = n;code = 110
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = u;code = 117
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = d;code = 100
char = i;code = 105
char = a;code = 97
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = a;code = 97
char = l;code = 108
char = e;code = 101
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char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = f;code = 102
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char = M;code = 77
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result sql = The olive polyphenols oleuropein and hydroxytyrosol were reported recently to produce extracellular hydrogen peroxide (H2O2) under standard culture conditions. The precise factors responsible for this production and the conditions promoting or retarding it are critical for the interpretation of the in vitro results. In this study, a systematic evaluation of the components of the most commonly used culture media revealed that sodium bicarbonate is the defining cause for the production of H2O2 by these polyphenols. The produced H2O2 caused extensive oxidative DNA damage and significant decrease in cell viability of cancer (MDA-MB-231) and normal (MCF-10A, STO) cells alike. Sodium pyruvate and the antioxidant N-acetyl cysteine (NAC) totally reversed these effects. Therefore, we conclusively identified the culture conditions that promote H2O2 production by these polyphenols, producing artifacts that may be misinterpreted as a specific anticancer activity. Our findings raise considerable questions regarding the use of culture media with sodium bicarbonate or sodium pyruvate as components, for the in vitro study of these and possibly other plant polyphenols.
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char = t;code = 116
char = i;code = 105
char = o;code = 111
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char = e;code = 101
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char = n;code = 110
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char = i;code = 105
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result sql = Identification of the factors responsible for the in vitro pro-oxidant and cytotoxic activities of the olive polyphenols oleuropein and hydroxytyrosol.
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result sql = The olive polyphenols oleuropein and hydroxytyrosol were reported recently to produce extracellular hydrogen peroxide (H2O2) under standard culture conditions. The precise factors responsible for this production and the conditions promoting or retarding it are critical for the interpretation of the in vitro results. In this study, a systematic evaluation of the components of the most commonly used culture media revealed that sodium bicarbonate is the defining cause for the production of H2O2 by these polyphenols. The produced H2O2 caused extensive oxidative DNA damage and significant decrease in cell viability of cancer (MDA-MB-231) and normal (MCF-10A, STO) cells alike. Sodium pyruvate and the antioxidant N-acetyl cysteine (NAC) totally reversed these effects. Therefore, we conclusively identified the culture conditions that promote H2O2 production by these polyphenols, producing artifacts that may be misinterpreted as a specific anticancer activity. Our findings raise considerable questions regarding the use of culture media with sodium bicarbonate or sodium pyruvate as components, for the in vitro study of these and possibly other plant polyphenols.
Publication: Cancer Lett. 2013 Mar 1 ;330(1)::113-21. :doi: 10.1016/j.canlet.2012.11.035. :pii: S0304-3835(12)00693-3.
Publication Date: 2013 Mar 1
Study Author(s): Odiatou, Elena M;Skaltsounis, Alexios L;Constantinou, Andreas I;
Institution: Department of Biological Sciences, University of Cyprus, Kalllipoleos Avenue, 1678 Nicosia, Cyprus.
Shortcut link to this study:
Publication Date: 2013 Mar 1
Study Author(s): Odiatou, Elena M;Skaltsounis, Alexios L;Constantinou, Andreas I;
Institution: Department of Biological Sciences, University of Cyprus, Kalllipoleos Avenue, 1678 Nicosia, Cyprus.
Shortcut link to this study:
The olive polyphenols oleuropein and hydroxytyrosol were reported recently to produce extracellular hydrogen peroxide (H2O2) under standard culture conditions. The precise factors responsible for this production and the conditions promoting or retarding it are critical for the interpretation of the in vitro results. In this study, a systematic evaluation of the components of the most commonly used culture media revealed that sodium bicarbonate is the defining cause for the production of H2O2 by these polyphenols. The produced H2O2 caused extensive oxidative DNA damage and significant decrease in cell viability of cancer (MDA-MB-231) and normal (MCF-10A, STO) cells alike. Sodium pyruvate and the antioxidant N-acetyl cysteine (NAC) totally reversed these effects. Therefore, we conclusively identified the culture conditions that promote H2O2 production by these polyphenols, producing artifacts that may be misinterpreted as a specific anticancer activity. Our findings raise considerable questions regarding the use of culture media with sodium bicarbonate or sodium pyruvate as components, for the in vitro study of these and possibly other plant polyphenols.
PMID: 23201137
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