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To investigate whether the effect of ABO blood group on plasma von Willebrand factor (vWF) levels is mediated by the ABH antigenic determinants carried on N-linked glycans of vWF, we studied 158 group A and group O healthy volunteers. vWF antigen (vWF:Ag) and factor VIII antigen (FVIII:Ag) levels were highest in A(1)A(1) individuals and higher in A(1)O(1)… (More)
Previous reports on the effect of Secretor and Lewis blood groups on plasma factor VIII-von Willebrand factor (FVIII-VWF) levels have produced conflicting findings. To determine whether either or both loci can influence plasma FVIII-VWF complex levels, we studied the relationship between Secretor and Lewis genotypes, determined definitively using polymerase… (More)
BRL 26921 is a protected plasminogen-streptokinase complex with selective affinity for thrombus. When given intravenously within three hours of the onset of a first acute myocardial infarction angiographic patency of the infarct related vessel was seen in all 16 patients receiving the active drug compared with only two of 16 receiving a placebo. There was… (More)
Fifty patients with a first myocardial infarction presenting within 4 hours of the onset of symptoms were treated with intravenous anisoylated plasminogen-streptokinase activator complex (APSAC-BRL 26921). Vessel patency with good flow was documented in 88%. The left ventricular ejection fraction declined with the duration of symptoms before treatment (r =… (More)
Jean-Pierre Allain and colleagues argue that, while unintended, the foreign aid provided for blood transfusion services in sub-Saharan Africa has resulted in serious negative outcomes, which requires reflection and rethinking.
In doing so it acknowledges changes in transfusion practice during the past decade, particularly in respect of safety issues and further published transfusion-related guidelines. The transfusion requirements of the neonate are recognized as unique, but there are other groups of children who are regularly transfused and who have very specific transfusion… (More)
From clinical observation it would appear that hyperthyroid patients are particularly sensitive to the anticoagulant effects of warfarin. A study was made of clotting factors prothrombin (II), VII, procoagulant VIII (VIIIC), IX and X and of prothrombin ratio (PTR) and partial thromboplastin time with kaolin (PTT-K). These parameters and warfarin levels were… (More)