Association between plasmatic oxidative stress and thrombosis in primary antiphospholipid syndrome.



Vaz, Camila O, Mazetto, Bruna M, Vasconcelos, Pedro Eduardo NS, Bastos, Larissa B, Cursino, Maria Aparecida, Quintanilha, Júlia Coelho França, Mesquita, Gabriela Lisiane Tripiquia Vechiatto, Santos, Ana Paula R, Jacintho, Bruna Cardoso, Oliveira, José Diogo
et al (show 2 more authors) (2021) Association between plasmatic oxidative stress and thrombosis in primary antiphospholipid syndrome. Journal of thrombosis and thrombolysis, 52 (3). 730 - 737.

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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.

Item Type: Article
Divisions: Faculty of Health and Life Sciences
Faculty of Health and Life Sciences > Institute of Systems, Molecular and Integrative Biology
Depositing User: Symplectic Admin
Date Deposited: 24 Jan 2022 10:11
Last Modified: 25 Jun 2022 02:10
DOI: 10.1007/s11239-021-02509-0
Open Access URL: https://doi.org/10.1007/s11239-021-02509-0
URI: https://livrepository.liverpool.ac.uk/id/eprint/3147529