Figure 3.

Increase of tissue factor (TF) expression in platelets from anti‐phospholipid syndrome (APS) patients. (a) TF expression in platelets was analysed in 20 samples from APS patients and 20 samples from healthy donors by Western blot using anti‐TF. Western blot and densitometric analysis from two representative samples are shown. (b) Densitometric values of TF/actin ratio calculated in healthy subjects and APS patients are represented and summarized by box‐plot statistics. A statistically significant difference between expression of TF in APS patients versus control subjects was found (P < 0·0001).