Related Experiment Videos
[Evaluation of plasma prothrombin fragment 1+2 in healthy donors and thrombotic diseases]
1Department of Clinical Laboratory Medicine, Keio University, School of Medicine, Tokyo.
We have evaluated plasma F1+2 values by enzyme immunoassay (Enzygnost F1+2; Behringwerke) in 80 healthy blood donors in various ages and compared to that from patients with DIC, thrombosis and oral anticoagulant therapy. The reference range of F1+2 from 35 donors with 20 to 29 age-group, was found 0.82 +/- 0.39 nM, whereas the range from 20 donors with 30 to 39 age-group showed higher F1+2 levels with 1.46 +/- 0.56nM (p < 0.001). F1+2 values from 15 donors with 40 to 49 age-group revealed similar with 30 to 39 age-group, while the range from 10 donors with 50 to 59 age-group was found much higher F1+2 levels with 2.16 +/- 0.80nM (p < 0.001). In patients with DIC, F1+2 levels were significantly higher than those in all healthy subjects (p < 0.01). In patients under stable oral anticoagulant therapy, F1+2 values were significantly lower than in healthy donors with any age-group (p < 0.001). On the contrary, in patients with thrombosis including 9 AMI and 4 DVT, the determination of F1+2 values appeared controversial. They were significantly higher than those in 20 age-group donors (p < 0.001), however, when compared with those in all healthy donors, it showed no statistical significance. These results suggest that evaluation of reference range of plasma F1+2 values is very important from the viewpoint of aging. In addition, F1+2 determination is clinically useful for monitoring of DIC and anticoagulant therapy.
We have evaluated plasma F1+2 values by enzyme immunoassay (Enzygnost F1+2; Behringwerke) in 80 healthy blood donors in various ages and compared to that from patients with DIC, thrombosis and oral anticoagulant therapy. The reference range of F1+2 from 35 donors with 20 to 29 age-group, was found 0.82 +/- 0.39 nM, whereas the range from 20 donors with 30 to 39 age-group showed higher F1+2 levels with 1.46 +/- 0.56nM (p < 0.001). F1+2 values from 15 donors with 40 to 49 age-group revealed similar with 30 to 39 age-group, while the range from 10 donors with 50 to 59 age-group was found much higher F1+2 levels with 2.16 +/- 0.80nM (p < 0.001). In patients with DIC, F1+2 levels were significantly higher than those in all healthy subjects (p < 0.01). In patients under stable oral anticoagulant therapy, F1+2 values were significantly lower than in healthy donors with any age-group (p < 0.001). On the contrary, in patients with thrombosis including 9 AMI and 4 DVT, the determination of F1+2 values appeared controversial. They were significantly higher than those in 20 age-group donors (p < 0.001), however, when compared with those in all healthy donors, it showed no statistical significance. These results suggest that evaluation of reference range of plasma F1+2 values is very important from the viewpoint of aging. In addition, F1+2 determination is clinically useful for monitoring of DIC and anticoagulant therapy.