char = E;code = 69 char = n;code = 110 char = d;code = 100 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = c;code = 99 char = e;code = 101 char = p;code = 112 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = u;code = 117 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = s;code = 115 char = t;code = 116 char = a;code = 97 char = g;code = 103 char = l;code = 108 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = c;code = 99 char = r;code = 114 char = e;code = 101 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = d;code = 100 char = u;code = 117 char = r;code = 114 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = o;code = 111 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = r;code = 114 char = o;code = 111 char = u;code = 117 char = s;code = 115 char = ;code = 32 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = e;code = 101 char = a;code = 97 char = r;code = 114 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = c;code = 99 char = y;code = 121 char = .;code = 46 result sql = Endometrial oxytocin receptor and uterine prostaglandin secretion in mares during the oestrous cycle and early pregnancy.
Endometrial oxytocin receptor and uterine prostaglandin secretion in mares during the oestrous cycle and early pregnancy.char = C;code = 67 char = i;code = 105 char = r;code = 114 char = c;code = 99 char = u;code = 117 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 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 = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = 1;code = 49 char = 3;code = 51 char = ,;code = 44 char = 1;code = 49 char = 4;code = 52 char = -;code = 45 char = d;code = 100 char = i;code = 105 char = h;code = 104 char = y;code = 121 char = d;code = 100 char = r;code = 114 char = o;code = 111 char = -;code = 45 char = 1;code = 49 char = 5;code = 53 char = -;code = 45 char = k;code = 107 char = e;code = 101 char = t;code = 116 char = o;code = 111 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = s;code = 115 char = t;code = 116 char = a;code = 97 char = g;code = 103 char = l;code = 108 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = F;code = 70 char = 2;code = 50 char = ;code = 32 char = a;code = 97 char = l;code = 108 char = p;code = 112 char = h;code = 104 char = a;code = 97 char = ;code = 32 char = (;code = 40 char = P;code = 80 char = G;code = 71 char = F;code = 70 char = M;code = 77 char = );code = 41 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 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 = a;code = 97 char = d;code = 100 char = m;code = 109 char = i;code = 105 char = n;code = 110 char = i;code = 105 char = s;code = 115 char = t;code = 116 char = r;code = 114 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 = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 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 = a;code = 97 char = f;code = 102 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = e;code = 101 char = n;code = 110 char = d;code = 100 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = b;code = 98 char = i;code = 105 char = o;code = 111 char = p;code = 112 char = s;code = 115 char = y;code = 121 char = ,;code = 44 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = o;code = 111 char = u;code = 117 char = t;code = 116 char = ;code = 32 char = u;code = 117 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = f;code = 102 char = l;code = 108 char = u;code = 117 char = s;code = 115 char = h;code = 104 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = p;code = 112 char = e;code = 101 char = r;code = 114 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = m;code = 109 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = p;code = 112 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = v;code = 118 char = a;code = 97 char = g;code = 103 char = i;code = 105 char = n;code = 110 char = a;code = 97 char = m;code = 109 char = ,;code = 44 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = y;code = 121 char = s;code = 115 char = ;code = 32 char = 1;code = 49 char = 0;code = 48 char = ,;code = 44 char = ;code = 32 char = 1;code = 49 char = 4;code = 52 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = 1;code = 49 char = 8;code = 56 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 = o;code = 111 char = v;code = 118 char = u;code = 117 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = n;code = 110 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = n;code = 110 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = C;code = 67 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 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 = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = c;code = 99 char = e;code = 101 char = p;code = 112 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = u;code = 117 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = e;code = 101 char = n;code = 110 char = d;code = 100 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = b;code = 98 char = i;code = 105 char = o;code = 111 char = p;code = 112 char = s;code = 115 char = y;code = 121 char = ;code = 32 char = s;code = 115 char = a;code = 97 char = m;code = 109 char = p;code = 112 char = l;code = 108 char = e;code = 101 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = N;code = 78 char = e;code = 101 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = c;code = 99 char = y;code = 121 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = a;code = 97 char = t;code = 116 char = u;code = 117 char = s;code = 115 char = ;code = 32 char = n;code = 110 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = t;code = 116 char = i;code = 105 char = m;code = 109 char = e;code = 101 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 = o;code = 111 char = v;code = 118 char = u;code = 117 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = a;code = 97 char = s;code = 115 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = P;code = 80 char = G;code = 71 char = F;code = 70 char = M;code = 77 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 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 = 60 char = b;code = 98 char = >;code = 62 char = ;code = 32 char = P;code = 80 char = G;code = 71 char = F;code = 70 char = M;code = 77 char = ;code = 32 char = :;code = 58 char = ;code = 32 char = <;code = 60 char = /;code = 47 char = b;code = 98 char = >;code = 62 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 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 = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = c;code = 99 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = d;code = 100 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 = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = d;code = 100 char = m;code = 109 char = i;code = 105 char = n;code = 110 char = i;code = 105 char = s;code = 115 char = t;code = 116 char = r;code = 114 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 = n;code = 110 char = ;code = 32 char = e;code = 101 char = a;code = 97 char = c;code = 99 char = h;code = 104 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 = d;code = 100 char = a;code = 97 char = y;code = 121 char = s;code = 115 char = ;code = 32 char = s;code = 115 char = t;code = 116 char = u;code = 117 char = d;code = 100 char = i;code = 105 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = ;;code = 59 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = y;code = 121 char = ;code = 32 char = 1;code = 49 char = 4;code = 52 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 = a;code = 97 char = n;code = 110 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 = e;code = 101 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = 4;code = 52 char = .;code = 46 char = 5;code = 53 char = ;code = 32 char = t;code = 116 char = i;code = 105 char = m;code = 109 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = h;code = 104 char = i;code = 105 char = g;code = 103 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 = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = a;code = 97 char = n;code = 110 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 = e;code = 101 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = y;code = 121 char = s;code = 115 char = ;code = 32 char = 1;code = 49 char = 0;code = 48 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = 1;code = 49 char = 8;code = 56 char = .;code = 46 char = ;code = 32 char = I;code = 73 char = n;code = 110 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = s;code = 115 char = t;code = 116 char = ,;code = 44 char = ;code = 32 char = d;code = 100 char = u;code = 117 char = r;code = 114 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = c;code = 99 char = y;code = 121 char = ,;code = 44 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 = e;code = 101 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = d;code = 100 char = m;code = 109 char = i;code = 105 char = n;code = 110 char = i;code = 105 char = s;code = 115 char = t;code = 116 char = r;code = 114 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 = c;code = 99 char = c;code = 99 char = u;code = 117 char = r;code = 114 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = y;code = 121 char = s;code = 115 char = ;code = 32 char = 1;code = 49 char = 0;code = 48 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = 1;code = 49 char = 8;code = 56 char = .;code = 46 char = ;code = 32 char = M;code = 77 char = a;code = 97 char = r;code = 114 char = k;code = 107 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = c;code = 99 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = P;code = 80 char = G;code = 71 char = F;code = 70 char = M;code = 77 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 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 = 32 char = i;code = 105 char = n;code = 110 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 = e;code = 101 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = e;code = 101 char = n;code = 110 char = d;code = 100 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = b;code = 98 char = i;code = 105 char = o;code = 111 char = p;code = 112 char = s;code = 115 char = y;code = 121 char = ;code = 32 char = o;code = 111 char = c;code = 99 char = c;code = 99 char = u;code = 117 char = r;code = 114 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = y;code = 121 char = ;code = 32 char = 1;code = 49 char = 4;code = 52 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 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 = o;code = 111 char = n;code = 110 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = y;code = 121 char = ;code = 32 char = 1;code = 49 char = 8;code = 56 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = M;code = 77 char = e;code = 101 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 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 = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = c;code = 99 char = e;code = 101 char = p;code = 112 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = t;code = 116 char = w;code = 119 char = e;code = 101 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = 2;code = 50 char = 0;code = 48 char = 0;code = 48 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = 3;code = 51 char = 0;code = 48 char = 0;code = 48 char = ;code = 32 char = f;code = 102 char = m;code = 109 char = o;code = 111 char = l;code = 108 char = ;code = 32 char = m;code = 109 char = g;code = 103 char = -;code = 45 char = 1;code = 49 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = t;code = 116 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = y;code = 121 char = ;code = 32 char = 1;code = 49 char = 0;code = 48 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = b;code = 98 char = o;code = 111 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = ;;code = 59 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = c;code = 99 char = e;code = 101 char = p;code = 112 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 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 = 32 char = w;code = 119 char = e;code = 101 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = c;code = 99 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = x;code = 120 char = i;code = 105 char = m;code = 109 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = r;code = 114 char = e;code = 101 char = e;code = 101 char = f;code = 102 char = o;code = 111 char = l;code = 108 char = d;code = 100 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = y;code = 121 char = ;code = 32 char = 1;code = 49 char = 4;code = 52 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = m;code = 109 char = p;code = 112 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = y;code = 121 char = s;code = 115 char = ;code = 32 char = 1;code = 49 char = 0;code = 48 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = 1;code = 49 char = 8;code = 56 char = ,;code = 44 char = ;code = 32 char = b;code = 98 char = u;code = 117 char = t;code = 116 char = ;code = 32 char = n;code = 110 char = o;code = 111 char = ;code = 32 char = s;code = 115 char = u;code = 117 char = c;code = 99 char = h;code = 104 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = c;code = 99 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = e;code = 101 char = v;code = 118 char = i;code = 105 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = d;code = 100 char = u;code = 117 char = r;code = 114 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = c;code = 99 char = y;code = 121 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = o;code = 111 char = t;code = 116 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = a;code = 97 char = m;code = 109 char = o;code = 111 char = u;code = 117 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 = P;code = 80 char = G;code = 71 char = F;code = 70 char = M;code = 77 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = c;code = 99 char = r;code = 114 char = e;code = 101 char = t;code = 116 char = e;code = 101 char = d;code = 100 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 = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = n;code = 110 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 = c;code = 99 char = o;code = 111 char = r;code = 114 char = r;code = 114 char = e;code = 101 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = e;code = 101 char = n;code = 110 char = d;code = 100 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = c;code = 99 char = e;code = 101 char = p;code = 112 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 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 = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = (;code = 40 char = P;code = 80 char = ;code = 32 char = <;code = 60 char = ;code = 32 char = 0;code = 48 char = .;code = 46 char = 0;code = 48 char = 0;code = 48 char = 1;code = 49 char = );code = 41 char = ;code = 32 char = b;code = 98 char = u;code = 117 char = t;code = 116 char = ;code = 32 char = n;code = 110 char = o;code = 111 char = t;code = 116 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = (;code = 40 char = P;code = 80 char = ;code = 32 char = >;code = 62 char = ;code = 32 char = 0;code = 48 char = .;code = 46 char = 5;code = 53 char = );code = 41 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = ,;code = 44 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 = s;code = 115 char = a;code = 97 char = m;code = 109 char = e;code = 101 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = r;code = 114 char = u;code = 117 char = e;code = 101 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = P;code = 80 char = G;code = 71 char = F;code = 70 char = M;code = 77 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = l;code = 108 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = d;code = 100 char = u;code = 117 char = c;code = 99 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = e;code = 101 char = n;code = 110 char = d;code = 100 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = b;code = 98 char = i;code = 105 char = o;code = 111 char = p;code = 112 char = s;code = 115 char = y;code = 121 char = ;code = 32 char = (;code = 40 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = i;code = 105 char = c;code = 99 char = :;code = 58 char = ;code = 32 char = P;code = 80 char = ;code = 32 char = =;code = 61 char = ;code = 32 char = 0;code = 48 char = .;code = 46 char = 0;code = 48 char = 0;code = 48 char = 2;code = 50 char = 5;code = 53 char = ;;code = 59 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = :;code = 58 char = ;code = 32 char = P;code = 80 char = ;code = 32 char = >;code = 62 char = ;code = 32 char = 0;code = 48 char = .;code = 46 char = 5;code = 53 char = );code = 41 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = t;code = 116 char = a;code = 97 char = ;code = 32 char = s;code = 115 char = u;code = 117 char = p;code = 112 char = p;code = 112 char = o;code = 111 char = r;code = 114 char = t;code = 116 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = h;code = 104 char = y;code = 121 char = p;code = 112 char = o;code = 111 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = s;code = 115 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = t;code = 116 char = ;code = 32 char = e;code = 101 char = n;code = 110 char = d;code = 100 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 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 = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = c;code = 99 char = e;code = 101 char = p;code = 112 char = t;code = 116 char = o;code = 111 char = r;code = 114 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 = ;code = 32 char = u;code = 117 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = o;code = 111 char = s;code = 115 char = t;code = 116 char = a;code = 97 char = g;code = 103 char = l;code = 108 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = F;code = 70 char = 2;code = 50 char = ;code = 32 char = a;code = 97 char = l;code = 108 char = p;code = 112 char = h;code = 104 char = a;code = 97 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = c;code = 99 char = r;code = 114 char = e;code = 101 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = i;code = 105 char = c;code = 99 char = ;code = 32 char = m;code = 109 char = a;code = 97 char = r;code = 114 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 = t;code = 116 char = h;code = 104 char = a;code = 97 char = t;code = 116 char = ;code = 32 char = e;code = 101 char = n;code = 110 char = d;code = 100 char = o;code = 111 char = m;code = 109 char = e;code = 101 char = t;code = 116 char = r;code = 114 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = c;code = 99 char = e;code = 101 char = p;code = 112 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 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 = 32 char = a;code = 97 char = r;code = 114 char = e;code = 101 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = u;code = 117 char = c;code = 99 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = e;code = 101 char = a;code = 97 char = r;code = 114 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = c;code = 99 char = y;code = 121 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = a;code = 97 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 = ;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 = n;code = 110 char = c;code = 99 char = e;code = 101 char = p;code = 112 char = t;code = 116 char = u;code = 117 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 = i;code = 105 char = n;code = 110 char = c;code = 99 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 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 = e;code = 101 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 = p;code = 112 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = n;code = 110 char = a;code = 97 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = u;code = 117 char = t;code = 116 char = e;code = 101 char = r;code = 114 char = u;code = 117 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = n;code = 110 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 = o;code = 111 char = r;code = 114 char = ;code = 32 char = b;code = 98 char = i;code = 105 char = o;code = 111 char = p;code = 112 char = s;code = 115 char = y;code = 121 char = -;code = 45 char = f;code = 102 char = l;code = 108 char = u;code = 117 char = s;code = 115 char = h;code = 104 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = t;code = 116 char = w;code = 119 char = e;code = 101 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = y;code = 121 char = s;code = 115 char = ;code = 32 char = 1;code = 49 char = 4;code = 52 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = 1;code = 49 char = 8;code = 56 char = ;code = 32 char = w;code = 119 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = n;code = 110 char = o;code = 111 char = t;code = 116 char = ;code = 32 char = d;code = 100 char = u;code = 117 char = e;code = 101 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = c;code = 99 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = s;code = 115 char = e;code = 101 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 = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 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 = o;code = 111 char = x;code = 120 char = y;code = 121 char = t;code = 116 char = o;code = 111 char = c;code = 99 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = c;code = 99 char = e;code = 101 char = p;code = 112 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = s;code = 115 char = ;code = 32 char = b;code = 98 char = u;code = 117 char = t;code = 116 char = ;code = 32 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = u;code = 117 char = m;code = 109 char = a;code = 97 char = b;code = 98 char = l;code = 108 char = y;code = 121 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = f;code = 102 char = l;code = 108 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = c;code = 99 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = s;code = 115 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 = p;code = 112 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = n;code = 110 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 = 46 char = <;code = 60 char = b;code = 98 char = r;code = 114 char = /;code = 47 char = >;code = 62 result sql = Circulating concentrations of 13,14-dihydro-15-ketoprostaglandin F2 alpha (PGFM) were measured before and after administration of oxytocin and after endometrial biopsy, with or without uterine flushing performed per vaginam, on days 10, 14 and 18 after ovulation in nine pregnant and nine cyclic mares. Concentrations of oxytocin receptor were measured in endometrial biopsy samples. Neither pregnancy status nor time after ovulation affected basal PGFM concentrations PGFM : concentrations were increased after oxytocin administration on each of the days studied in cyclic mares; on day 14 the mean response was 4.5 times higher than the mean response on days 10 and 18. In contrast, during pregnancy, responses to oxytocin administration occurred only on days 10 and 18. Marked increases in PGFM concentrations in response to endometrial biopsy occurred only on day 14 in cyclic mares and on day 18 in pregnant mares. Mean concentrations of oxytocin receptor were between 200 and 300 fmol mg-1 protein on day 10 in both pregnant and cyclic mares; in cyclic mares oxytocin receptor concentrations were increased approximately threefold on day 14 compared with days 10 and 18, but no such increase was evident during pregnancy. Total amounts of PGFM secreted after oxytocin treatment correlated with endometrial oxytocin receptor concentrations in cyclic (P < 0.001) but not in pregnant (P > 0.5) mares, and the same was true for PGFM release induced by endometrial biopsy (cyclic: P = 0.0025; pregnant: P > 0.5). The data support the hypothesis that endometrial concentrations of oxytocin receptor determine uterine prostaglandin F2 alpha secretion in cyclic mares and that endometrial oxytocin receptor concentrations are reduced in early pregnancy by a product of the conceptus. The increase in response of the pregnant uterus to oxytocin treatment or biopsy-flushing between days 14 and 18 was not due to an increase in the concentration of oxytocin receptors but presumably reflected increased receptor sensitivity.
Publication: J. Reprod. Fertil. 1998 Jul ;113(2)::173-9.
Publication Date: 1998 Jul
Study Author(s): Starbuck, G R;Stout, T A;Lamming, G E;Allen, W R;Flint, A P;
Institution: Department of Physiology and Environmental Science, University of Nottingham, Leicestershire, UK.
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Circulating concentrations of 13,14-dihydro-15-ketoprostaglandin F2 alpha (PGFM) were measured before and after administration of oxytocin and after endometrial biopsy, with or without uterine flushing performed per vaginam, on days 10, 14 and 18 after ovulation in nine pregnant and nine cyclic mares. Concentrations of oxytocin receptor were measured in endometrial biopsy samples. Neither pregnancy status nor time after ovulation affected basal PGFM concentrations PGFM : concentrations were increased after oxytocin administration on each of the days studied in cyclic mares; on day 14 the mean response was 4.5 times higher than the mean response on days 10 and 18. In contrast, during pregnancy, responses to oxytocin administration occurred only on days 10 and 18. Marked increases in PGFM concentrations in response to endometrial biopsy occurred only on day 14 in cyclic mares and on day 18 in pregnant mares. Mean concentrations of oxytocin receptor were between 200 and 300 fmol mg-1 protein on day 10 in both pregnant and cyclic mares; in cyclic mares oxytocin receptor concentrations were increased approximately threefold on day 14 compared with days 10 and 18, but no such increase was evident during pregnancy. Total amounts of PGFM secreted after oxytocin treatment correlated with endometrial oxytocin receptor concentrations in cyclic (P < 0.001) but not in pregnant (P > 0.5) mares, and the same was true for PGFM release induced by endometrial biopsy (cyclic: P = 0.0025; pregnant: P > 0.5). The data support the hypothesis that endometrial concentrations of oxytocin receptor determine uterine prostaglandin F2 alpha secretion in cyclic mares and that endometrial oxytocin receptor concentrations are reduced in early pregnancy by a product of the conceptus. The increase in response of the pregnant uterus to oxytocin treatment or biopsy-flushing between days 14 and 18 was not due to an increase in the concentration of oxytocin receptors but presumably reflected increased receptor sensitivity.
PMID: 9861156