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char = b;code = 98
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char = i;code = 105
char = s;code = 115
char = .;code = 46
result sql = Ultrastructural localization of advanced glycation end products and beta2-microglobulin in dialysis amyloidosis.
Ultrastructural localization of advanced glycation end products and beta2-microglobulin in dialysis amyloidosis.
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char = b;code = 98
char = b;code = 98
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char = a;code = 97
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char = m;code = 109
char = o;code = 111
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char = o;code = 111
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char = o;code = 111
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char = a;code = 97
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char = s;code = 115
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char = a;code = 97
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char = t;code = 116
char = i;code = 105
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char = A;code = 65
char = G;code = 71
char = E;code = 69
char = ;code = 32
char = a;code = 97
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char = t;code = 116
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char = b;code = 98
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char = d;code = 100
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char = e;code = 101
char = s;code = 115
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char = [;code = 91
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char = G;code = 71
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char = 1;code = 49
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = i;code = 105
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char = i;code = 105
char = m;code = 109
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char = d;code = 100
char = a;code = 97
char = z;code = 122
char = o;code = 111
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char = o;code = 111
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char = e;code = 101
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char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = A;code = 65
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char = 0;code = 48
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char = a;code = 97
char = n;code = 110
char = t;code = 116
char = i;code = 105
char = -;code = 45
char = N;code = 78
char = (;code = 40
char = e;code = 101
char = p;code = 112
char = s;code = 115
char = i;code = 105
char = l;code = 108
char = o;code = 111
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char = c;code = 99
char = a;code = 97
char = r;code = 114
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char = o;code = 111
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char = y;code = 121
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char = e;code = 101
char = t;code = 116
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char = y;code = 121
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char = l;code = 108
char = y;code = 121
char = s;code = 115
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char = n;code = 110
char = e;code = 101
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char = ;code = 32
char = e;code = 101
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char = a;code = 97
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char = l;code = 108
char = e;code = 101
char = d;code = 100
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char = u;code = 117
char = s;code = 115
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char = t;code = 116
char = o;code = 111
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char = l;code = 108
char = a;code = 97
char = b;code = 98
char = e;code = 101
char = l;code = 108
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = i;code = 105
char = r;code = 114
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char = r;code = 114
char = e;code = 101
char = s;code = 115
char = p;code = 112
char = e;code = 101
char = c;code = 99
char = t;code = 116
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char = v;code = 118
char = e;code = 101
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char = a;code = 97
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char = t;code = 116
char = i;code = 105
char = g;code = 103
char = e;code = 101
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char = s;code = 115
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char = a;code = 97
char = t;code = 116
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
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char = o;code = 111
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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 = a;code = 97
char = n;code = 110
char = d;code = 100
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char = u;code = 117
char = l;code = 108
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = u;code = 117
char = r;code = 114
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = l;code = 108
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = l;code = 108
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
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char = >;code = 62
char = <;code = 60
char = b;code = 98
char = r;code = 114
char = /;code = 47
char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = R;code = 82
char = E;code = 69
char = S;code = 83
char = U;code = 85
char = L;code = 76
char = T;code = 84
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = b;code = 98
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char = h;code = 104
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char = t;code = 116
char = e;code = 101
char = c;code = 99
char = h;code = 104
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char = q;code = 113
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char = s;code = 115
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char = ;code = 32
char = e;code = 101
char = x;code = 120
char = t;code = 116
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char = a;code = 97
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char = e;code = 101
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char = l;code = 108
char = u;code = 117
char = l;code = 108
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = a;code = 97
char = m;code = 109
char = y;code = 121
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char = d;code = 100
char = e;code = 101
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char = t;code = 116
char = s;code = 115
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char = r;code = 114
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char = l;code = 108
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char = e;code = 101
char = a;code = 97
char = c;code = 99
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char = e;code = 101
char = d;code = 100
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char = t;code = 116
char = h;code = 104
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char = a;code = 97
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char = a;code = 97
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char = ;code = 32
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = i;code = 105
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char = A;code = 65
char = G;code = 71
char = E;code = 69
char = ;code = 32
char = a;code = 97
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char = b;code = 98
char = o;code = 111
char = d;code = 100
char = i;code = 105
char = e;code = 101
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = t;code = 116
char = h;code = 104
char = o;code = 111
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char = g;code = 103
char = h;code = 104
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char = t;code = 116
char = h;code = 104
char = e;code = 101
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char = i;code = 105
char = m;code = 109
char = m;code = 109
char = u;code = 117
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char = a;code = 97
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char = i;code = 105
char = v;code = 118
char = i;code = 105
char = t;code = 116
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char = f;code = 102
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char = b;code = 98
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char = a;code = 97
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char = a;code = 97
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char = e;code = 101
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char = a;code = 97
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char = r;code = 114
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char = p;code = 112
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char = a;code = 97
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char = k;code = 107
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char = C;code = 67
char = D;code = 68
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char = 6;code = 54
char = 8;code = 56
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char = o;code = 111
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char = t;code = 116
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char = e;code = 101
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char = t;code = 116
char = s;code = 115
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char = e;code = 101
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char = s;code = 115
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char = u;code = 117
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char = a;code = 97
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char = v;code = 118
char = e;code = 101
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char = f;code = 102
char = o;code = 111
char = r;code = 114
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char = b;code = 98
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char = t;code = 116
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char = m;code = 109
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char = d;code = 100
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char = A;code = 65
char = G;code = 71
char = E;code = 69
char = ,;code = 44
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char = w;code = 119
char = h;code = 104
char = i;code = 105
char = c;code = 99
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char = o;code = 111
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char = i;code = 105
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char = a;code = 97
char = c;code = 99
char = e;code = 101
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char = l;code = 108
char = u;code = 117
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char = a;code = 97
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char = f;code = 102
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char = l;code = 108
char = a;code = 97
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char = e;code = 101
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char = i;code = 105
char = a;code = 97
char = l;code = 108
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char = ;code = 32
char = A;code = 65
char = n;code = 110
char = t;code = 116
char = i;code = 105
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char = A;code = 65
char = G;code = 71
char = E;code = 69
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char = r;code = 114
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char = a;code = 97
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char = i;code = 105
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char = a;code = 97
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char = ;code = 32
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char = s;code = 115
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char = l;code = 108
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char = e;code = 101
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char = a;code = 97
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char = t;code = 116
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char = a;code = 97
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char = A;code = 65
char = G;code = 71
char = E;code = 69
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char = e;code = 101
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char = h;code = 104
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char = t;code = 116
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = D;code = 68
char = R;code = 82
char = A;code = 65
char = .;code = 46
char = <;code = 60
char = b;code = 98
char = r;code = 114
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char = >;code = 62
char = <;code = 60
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char = >;code = 62
char = <;code = 60
char = b;code = 98
char = >;code = 62
char = C;code = 67
char = O;code = 79
char = N;code = 78
char = C;code = 67
char = L;code = 76
char = U;code = 85
char = S;code = 83
char = I;code = 73
char = O;code = 79
char = N;code = 78
char = S;code = 83
char = ;code = 32
char = :;code = 58
char = ;code = 32
char = <;code = 60
char = /;code = 47
char = b;code = 98
char = >;code = 62
char = T;code = 84
char = h;code = 104
char = e;code = 101
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char = z;code = 122
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char = o;code = 111
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char = A;code = 65
char = G;code = 71
char = E;code = 69
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char = a;code = 97
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char = b;code = 98
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char = b;code = 98
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = -;code = 45
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = e;code = 101
char = x;code = 120
char = t;code = 116
char = r;code = 114
char = a;code = 97
char = -;code = 45
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 = l;code = 108
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = m;code = 109
char = y;code = 121
char = l;code = 108
char = o;code = 111
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = i;code = 105
char = b;code = 98
char = r;code = 114
char = i;code = 105
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = f;code = 102
char = i;code = 105
char = r;code = 114
char = m;code = 109
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = i;code = 105
char = m;code = 109
char = m;code = 109
char = u;code = 117
char = n;code = 110
char = o;code = 111
char = e;code = 101
char = l;code = 108
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = r;code = 114
char = o;code = 111
char = n;code = 110
char = ;code = 32
char = m;code = 109
char = i;code = 105
char = c;code = 99
char = r;code = 114
char = o;code = 111
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = p;code = 112
char = y;code = 121
char = ;;code = 59
char = ;code = 32
char = h;code = 104
char = o;code = 111
char = w;code = 119
char = e;code = 101
char = v;code = 118
char = e;code = 101
char = r;code = 114
char = ,;code = 44
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = i;code = 105
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 = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = l;code = 108
char = l;code = 108
char = a;code = 97
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = i;code = 105
char = -;code = 45
char = A;code = 65
char = G;code = 71
char = E;code = 69
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = t;code = 116
char = i;code = 105
char = b;code = 98
char = o;code = 111
char = d;code = 100
char = i;code = 105
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = t;code = 116
char = t;code = 116
char = e;code = 101
char = r;code = 114
char = n;code = 110
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = i;code = 105
char = n;code = 110
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 = l;code = 108
char = o;code = 111
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = i;code = 105
char = z;code = 122
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = o;code = 111
char = n;code = 110
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 = m;code = 109
char = o;code = 111
char = l;code = 108
char = e;code = 101
char = c;code = 99
char = u;code = 117
char = l;code = 108
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = r;code = 114
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 = e;code = 101
char = t;code = 116
char = a;code = 97
char = 2;code = 50
char = m;code = 109
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = y;code = 121
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = s;code = 115
char = o;code = 111
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = ;code = 32
char = m;code = 109
char = o;code = 111
char = d;code = 100
char = i;code = 105
char = f;code = 102
char = i;code = 105
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = b;code = 98
char = y;code = 121
char = ;code = 32
char = A;code = 65
char = G;code = 71
char = E;code = 69
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = m;code = 109
char = a;code = 97
char = y;code = 121
char = ;code = 32
char = b;code = 98
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 = d;code = 100
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = a;code = 97
char = t;code = 116
char = h;code = 104
char = o;code = 111
char = g;code = 103
char = e;code = 101
char = n;code = 110
char = e;code = 101
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = D;code = 68
char = R;code = 82
char = A;code = 65
char = .;code = 46
result sql = BACKGROUND : beta2-microglobulin (beta2m) is considered to be the amyloidogenic precursor in dialysis-related amyloidosis (DRA, Abeta2M amyloidosis). beta2m modified with advanced glycation end products (AGE) may be an important factor in the pathogenesis of DRA. The presence of AGE in beta2m-positive amyloid deposits and surrounding macrophages has been demonstrated by immunohistochemical techniques in light microscopy.

METHODS : In order to better define the localization of beta2m and AGE in amyloid deposits and in cells, carpal tunnel connective tissues obtained from surgical specimens in six patients with DRA were studied by immunohistochemistry and electron microscopy, using the avidine-biotine complex and immunogold staining procedures, respectively. A polyclonal rabbit anti-human beta2m and two monoclonal mouse anti-AGE antibodies [AG-1 anti-imidazolone and AG-10 anti-N(epsilon)-carboxymethyl-lysine] enabled us to label their respective antigens at the optical and ultrastructural level.

RESULTS : with both techniques, extracellular amyloid deposits strongly reacted with anti-beta2m and anti-AGE antibodies, although the immunoreactivity of beta2m was more intense. Macrophage-like synovial cells (CD-68 positive) surrounding amyloid deposits were also immunoreactive for beta2m and AGE, which were detected in lysosomes and in intracellular fibrillar material. Anti-AGE reactivity was also evident in collagenous structures in the absence of beta2m or amyloid deposits, supporting the proposal that AGE modification of collagen might have pathogenic relevance in the development of DRA.

CONCLUSIONS : The co-localization of AGE and beta2m, both intra- and extra-cellularly, in amyloid fibrils was confirmed by immunoelectron microscopy; however, the positivity of collagen to anti-AGE antibodies and a different pattern of intracellular localization suggest that molecules other than beta2m may also be modified by AGE and may be involved in the pathogenesis of DRA.

Publication: J. Nephrol. 2000 Mar-Apr ;13(2)::129-36.
Publication Date: 2000 Mar-Apr
Study Author(s): Brancaccio, D;Gallieni, M;Niwa, T;Braidotti, P;Coggi, G;
Institution: Renal Unit, San Paolo Hospital, Milan, Italy. [email protected]
Shortcut link to this study:
BACKGROUND : beta2-microglobulin (beta2m) is considered to be the amyloidogenic precursor in dialysis-related amyloidosis (DRA, Abeta2M amyloidosis). beta2m modified with advanced glycation end products (AGE) may be an important factor in the pathogenesis of DRA. The presence of AGE in beta2m-positive amyloid deposits and surrounding macrophages has been demonstrated by immunohistochemical techniques in light microscopy.

METHODS : In order to better define the localization of beta2m and AGE in amyloid deposits and in cells, carpal tunnel connective tissues obtained from surgical specimens in six patients with DRA were studied by immunohistochemistry and electron microscopy, using the avidine-biotine complex and immunogold staining procedures, respectively. A polyclonal rabbit anti-human beta2m and two monoclonal mouse anti-AGE antibodies [AG-1 anti-imidazolone and AG-10 anti-N(epsilon)-carboxymethyl-lysine] enabled us to label their respective antigens at the optical and ultrastructural level.

RESULTS : with both techniques, extracellular amyloid deposits strongly reacted with anti-beta2m and anti-AGE antibodies, although the immunoreactivity of beta2m was more intense. Macrophage-like synovial cells (CD-68 positive) surrounding amyloid deposits were also immunoreactive for beta2m and AGE, which were detected in lysosomes and in intracellular fibrillar material. Anti-AGE reactivity was also evident in collagenous structures in the absence of beta2m or amyloid deposits, supporting the proposal that AGE modification of collagen might have pathogenic relevance in the development of DRA.

CONCLUSIONS : The co-localization of AGE and beta2m, both intra- and extra-cellularly, in amyloid fibrils was confirmed by immunoelectron microscopy; however, the positivity of collagen to anti-AGE antibodies and a different pattern of intracellular localization suggest that molecules other than beta2m may also be modified by AGE and may be involved in the pathogenesis of DRA.
PMID: 10858976

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