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  • Title: Tissue factor, tissue pathway factor inhibitor and risk factors of atherosclerosis in patients with chronic limbs ischemia: preliminary study.
    Author: Gosk-Bierska I, Wysokin Ski W, Karnicki K, Adamiec R.
    Journal: Int Angiol; 2008 Aug; 27(4):296-301. PubMed ID: 18677291.
    Abstract:
    AIM: Thrombus formation plays a critical role in pathogenesis of cardiovascular complications in atherosclerotic peripheral arterial occlusive disease (PAOD). Tissue factor (TF) initiates the clotting cascade and is considered an important regulator of hemostasis and thrombosis. TF activity is regulated by TF pathway inhibitor (TFPI). The aim of our study was to evaluate plasma levels of the TF, TFPI and their relation to coagulation system and various other risk factors of atherosclerosis in patients with chronic limbs ischemia. METHODS: Plasma TF, total TFPI, truncated TFPI, full-length TFPI were assessed by ELISA using commercially available kits (IMUBIND Tissue Factor; Total TFPI; Truncated TFPI ELISA Kit; American Diagnostica Inc. Stamford) in 62 claudicant patients with PAOD and 20 healthy controls. RESULTS: We observed statistically higher levels of TF (94+/-52 pg/mL), total TFPI (43+/-8 ng/mL), and truncated TFPI (22+/-7 ng/mL) in patients with PAOD compared to healthy individuals (TF: 66+/-15 pg/mL; total TFPI: 36+/-4 ng/mL; truncated TFPI: 14+/-5 ng/mL). Full-length TFPI (20+/-4 ng/mL) is lower in patients with PAOD than in controls (23+/-5 ng/mL). The study indicated a positive correlation between TF and truncated TFPI (r=0.34), total TFPI and full TFPI (r=0.5), total TFPI and truncated TFPI (r=0.83) in patients with PAOD, and negative correlation between full TFPI and truncated TFPI (r=-0.65) in the control. CONCLUSION: Elevated levels of TF, disorders of balance between full-length TFPI and truncated TFPI as well as significantly increased truncated TFPI level in patients with PAOD can be independent risk factors of atherosclerotic complications.
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