Association between plasmatic oxidative stress and thrombosis in primary antiphospholipid syndrome

Author(s):Show less -

Vaz, Camila O. ^[1] ; Mazetto, Bruna M. ^[2] ; Vasconcelos, Pedro Eduardo N. S. ^[1] ; Bastos, Larissa B. ^[3] ; Cursino, Maria Aparecida ^[4] ; Franca Quintanilha, Julia Coelho ^[4] ; Tripiquia Vechiatto Mesquita, Gabriela Lisiane ^[4] ; Santos, Ana Paula R. ^[4] ; Jacintho, Bruna Cardoso ^[5] ; Oliveira, Jose Diogo ^[5] ; Annichino-Bizzachi, Joyce ^{[5, 6]} ; Orsi, Fernanda A. ^{[6, 7, 8]}

Affiliation

^[1] Univ Estadual Campinas, Sch Med Sci, Dept Pharmacol, Campinas, SP - Brazil

^[2] Univ Estadual Campinas, Sch Med Sci, Campinas, SP - Brazil

^[3] Univ Estadual Campinas, Sch Pharmaceut Sci, Campinas, SP - Brazil

^[4] Univ Estadual Campinas, Sch Med Sci, Dept Med Sci, Campinas, SP - Brazil

^[5] Univ Estadual Campinas, Sch Med Sci, Dept Clin Med, Campinas, SP - Brazil

^[6] Ctr Univ Campinas, Hematol & Hemotherapy, Campinas, SP - Brazil

^[7] Univ Estadual Campinas, Sch Med Sci, Dept Clin Pathol, 126 Cidade Univ, BR-13083887 Campinas, SP - Brazil

^[8] Leiden Univ Med Ctr LUMC, Leiden - Netherlands

• Document type: Journal article
• Source: JOURNAL OF THROMBOSIS AND THROMBOLYSIS; v. 52, n. 3, p. 730-737, OCT 2021.
• Web of Science Citations: 0

Abstract

Antiphospholipid antibodies induce a pro-inflammatory and hypercoagulable state that lead to increased risk of thrombosis. Whether oxidative damage contributes thrombosis risk is a matter of debate. We evaluated the association between oxidative stress and thrombosis in primary antiphospholipid syndrome (t-PAPS). Plasma total antioxidant capacity and the levels of malondialdehyde (TBARs), carbonyl protein, and 8-isoprostane in plasma were determined in a group of patients with t-PAPS and in individuals without a history of thrombosis (controls) using commercial ELISA assays. The levels of these plasma markers of oxidative stress were compared between t-PAPS and controls using Mann-Whitney test. A total of 70 patients with t-PAPS and 74 controls were included. Overall, measurements of all plasma oxidative stress markers were similar between t-PAPS patients and controls. In a subgroup analysis, patients with t-PAPS and arterial thrombosis had a higher antioxidant capacity as compared to controls. Thrombotic PAPS was not associated with increased levels of oxidative stress markers, in comparison with individuals without thrombosis. Even though it is not possible to rule out that a mild oxidative damage, not detected by plasma markers, occurs in t-PAPS, our results suggest that measuring plasma oxidative stress markers has limited clinical relevance in t-PAPS. (AU)

• FAPESP's process: 16/14172-6 - Investigation of the pathophysiological aspects and novel therapeutic approaches for thromboembolic disorders
• Grantee: Joyce Maria Annichino-Bizzacchi
• Support Opportunities: Research Projects - Thematic Grants