char = A;code = 65
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = s;code = 115
char = i;code = 105
char = b;code = 98
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = v;code = 118
char = o;code = 111
char = l;code = 108
char = v;code = 118
char = e;code = 101
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = D;code = 68
char = N;code = 78
char = A;code = 65
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = p;code = 112
char = o;code = 111
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = I;code = 73
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = ";code = 34
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = i;code = 105
char = n;code = 110
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
char = t;code = 116
char = ";code = 34
char = ;code = 32
char = a;code = 97
char = f;code = 102
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = v;code = 118
char = i;code = 105
char = o;code = 111
char = l;code = 108
char = e;code = 101
char = t;code = 116
char = ;code = 32
char = i;code = 105
char = r;code = 114
char = r;code = 114
char = a;code = 97
char = d;code = 100
char = i;code = 105
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = .;code = 46
result sql = A possible involvement of DNA topoisomerase I in "caffeine effect" after ultraviolet irradiation.

A possible involvement of DNA topoisomerase I in "caffeine effect" after ultraviolet irradiation.

char = C;code = 67
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = k;code = 107
char = n;code = 110
char = o;code = 111
char = w;code = 119
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = e;code = 101
char = n;code = 110
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = o;code = 111
char = s;code = 115
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = a;code = 97
char = m;code = 109
char = a;code = 97
char = g;code = 103
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = e;code = 101
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = e;code = 101
char = m;code = 109
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = p;code = 112
char = h;code = 104
char = y;code = 121
char = s;code = 115
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = m;code = 109
char = u;code = 117
char = t;code = 116
char = a;code = 97
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = I;code = 73
char = n;code = 110
char = ;code = 32
char = s;code = 115
char = p;code = 112
char = i;code = 105
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = n;code = 110
char = u;code = 117
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = o;code = 111
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = v;code = 118
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = i;code = 105
char = g;code = 103
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = c;code = 99
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = i;code = 105
char = s;code = 115
char = m;code = 109
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = n;code = 110
char = o;code = 111
char = t;code = 116
char = ;code = 32
char = f;code = 102
char = u;code = 117
char = l;code = 108
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = e;code = 101
char = l;code = 108
char = u;code = 117
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = d;code = 100
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 = p;code = 112
char = a;code = 97
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = ,;code = 44
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = s;code = 115
char = c;code = 99
char = r;code = 114
char = i;code = 105
char = b;code = 98
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = 1;code = 49
char = );code = 41
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = t;code = 116
char = -;code = 45
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = t;code = 116
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = m;code = 109
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = c;code = 99
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = (;code = 40
char = C;code = 67
char = P;code = 80
char = T;code = 84
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = s;code = 115
char = p;code = 112
char = e;code = 101
char = c;code = 99
char = i;code = 105
char = f;code = 102
char = i;code = 105
char = c;code = 99
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = h;code = 104
char = i;code = 105
char = b;code = 98
char = i;code = 105
char = t;code = 116
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = D;code = 68
char = N;code = 78
char = A;code = 65
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = p;code = 112
char = o;code = 111
char = i;code = 105
char = s;code = 115
char = o;code = 111
char = m;code = 109
char = e;code = 101
char = r;code = 114
char = a;code = 97
char = s;code = 115
char = e;code = 101
char = ;code = 32
char = (;code = 40
char = t;code = 116
char = o;code = 111
char = p;code = 112
char = o;code = 111
char = );code = 41
char = ;code = 32
char = I;code = 73
char = ,;code = 44
char = ;code = 32
char = e;code = 101
char = n;code = 110
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = S;code = 83
char = C;code = 67
char = E;code = 69
char = -;code = 45
char = i;code = 105
char = n;code = 110
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 = b;code = 98
char = y;code = 121
char = ;code = 32
char = u;code = 117
char = l;code = 108
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = v;code = 118
char = i;code = 105
char = o;code = 111
char = l;code = 108
char = e;code = 101
char = t;code = 116
char = ;code = 32
char = l;code = 108
char = i;code = 105
char = g;code = 103
char = h;code = 104
char = t;code = 116
char = ;code = 32
char = (;code = 40
char = U;code = 85
char = V;code = 86
char = );code = 41
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = t;code = 116
char = -;code = 45
char = U;code = 85
char = V;code = 86
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = t;code = 116
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = d;code = 100
char = o;code = 111
char = e;code = 101
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = 2;code = 50
char = );code = 41
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = e;code = 101
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = U;code = 85
char = V;code = 86
char = ;code = 32
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = s;code = 115
char = o;code = 111
char = ;code = 32
char = e;code = 101
char = n;code = 110
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = u;code = 117
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = s;code = 115
char = s;code = 115
char = e;code = 101
char = r;code = 114
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = g;code = 103
char = r;code = 114
char = e;code = 101
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = t;code = 116
char = -;code = 45
char = U;code = 85
char = V;code = 86
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = r;code = 114
char = e;code = 101
char = a;code = 97
char = t;code = 116
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = 3;code = 51
char = );code = 41
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = l;code = 108
char = i;code = 105
char = k;code = 107
char = e;code = 101
char = ;code = 32
char = C;code = 67
char = P;code = 80
char = T;code = 84
char = ,;code = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = h;code = 104
char = i;code = 105
char = b;code = 98
char = i;code = 105
char = t;code = 116
char = s;code = 115
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = y;code = 121
char = m;code = 109
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = p;code = 112
char = o;code = 111
char = ;code = 32
char = I;code = 73
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = d;code = 100
char = e;code = 101
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = l;code = 108
char = a;code = 97
char = x;code = 120
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 = p;code = 112
char = B;code = 66
char = R;code = 82
char = 3;code = 51
char = 2;code = 50
char = 2;code = 50
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = p;code = 112
char = e;code = 101
char = r;code = 114
char = c;code = 99
char = o;code = 111
char = i;code = 105
char = l;code = 108
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = D;code = 68
char = N;code = 78
char = A;code = 65
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = s;code = 115
char = e;code = 101
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 = 32
char = s;code = 115
char = u;code = 117
char = g;code = 103
char = g;code = 103
char = e;code = 101
char = s;code = 115
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = c;code = 99
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = i;code = 105
char = s;code = 115
char = m;code = 109
char = (;code = 40
char = s;code = 115
char = );code = 41
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = S;code = 83
char = C;code = 67
char = E;code = 69
char = ;code = 32
char = e;code = 101
char = n;code = 110
char = h;code = 104
char = a;code = 97
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = v;code = 118
char = o;code = 111
char = l;code = 108
char = v;code = 118
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = b;code = 98
char = i;code = 105
char = l;code = 108
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = c;code = 99
char = a;code = 97
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = i;code = 105
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = h;code = 104
char = i;code = 105
char = b;code = 98
char = i;code = 105
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = p;code = 112
char = o;code = 111
char = ;code = 32
char = I;code = 73
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
result sql = Caffeine has been known to enhance lethal and chromosome damaging effects of chemical and physical mutagens. In spite of numerous investigations, the mechanism is not fully elucidated. In this paper, we describe that 1) post-treatment with camptothecin (CPT), a specific inhibitor of DNA topoisomerase (topo) I, enhances SCE-induction by ultraviolet light (UV), as post-UV caffeine treatment does, 2) the lethal effect of UV is also enhanced but to a lesser degree than by post-UV caffeine treatment, and 3) caffeine, like CPT, inhibits calf thymus topo I activity, as determined by relaxation of pBR322 supercoiled DNA. These results suggest that the mechanism(s) of lethal and SCE enhancement involves the ability of caffeine to inhibit topo I.

Have comments? Post them here:

Related Concepts

How is this determined?

The order of these related concepts is determined by a statistical analysis of the scientific literature. Highest-frequency concepts appear first.

Close

Related Articles

	Greenpeace puts pressure on Japan to tighten radiation restrictions after more than half of tested seafood shows up positive for radioactive cesium
	Addicted to coffee? You may be dopamine deficient
	Cell phone radiation safety standards must be strengthened, claim 12 leading public health and consumer safety groups
	Obama "dramatically" increases allowable levels of radiation in drinking water
	Reclaim your brain - naturally!
	Fukushima radiation detected 400 miles away in Pacific Ocean at levels 1,000 times higher than previous readings
	Woman overtreated for thyroid cancer was isolated in lead-lined room for three days because she was emitting so much radiation
	Microwave radiation from cell phones implicated in cancer and reproductive issues - companies quietly warn consumers of dangers
	See this 'shocking' new military treatment to fight caffeine addiction
	Pesticides, antibiotic-resistant bacteria could be spread by raindrop aerosols
	Full-body scanners used on air passengers may damage human DNA
	World food supply threatened by Japan nuclear radiation
	Florida town passes ordinance warning residents about dangers of cancer-causing cell phones
	Tens of thousands of U.S. kids subjected to needless cancer-causing CT scans
	Yaupon holly offers antioxidant benefits, caffeine

Click Here to View More Articles »