The endogenous thrombin potential was also associated with the JAK2 V617F allele burden (r = −0.283, p = 0.031), whereas following the filtration of MPs, MPN subjects with JAK2 V617F homozygous genotype displayed the lowest values of this parameter, as well as the highest circulating procoagulant activity [35]. This evidence concerns the gene JAK2 and myeloproliferative disorder.