The Effect of Oxidant Hypochlorous Acid on Platelet Aggregation and Dityrosine Concentration in Chronic Heart Failure Patients and Healthy Controls

被引:8
作者
Mongirdiene, Ausra [1 ]
Laukaitiene, Jolanta [1 ,2 ]
Skipskis, Vilius [3 ]
Kasauskas, Arturas [1 ]
机构
[1] Lithuanian Univ Hlth Sci, Med Acad, Dept Biochem, LT-44307 Kaunas, Lithuania
[2] Hosp Lithuanian Univ Hlth Sci, Dept Cardiol, LT-44307 Kaunas, Lithuania
[3] Lithuanian Univ Hlth Sci, Inst Cardiol, Lab Mol Cardiol, LT-44307 Kaunas, Lithuania
来源
MEDICINA-LITHUANIA | 2019年 / 55卷 / 05期
关键词
platelet; heart failure; oxidant; dityrosine; hypochlorous acid; COAGULATION SYSTEM; BLOOD-PLATELETS; SINUS RHYTHM; OXIDIZED LDL; FIBRINOGEN; ACTIVATION; PLASMA; HDL; PEROXYNITRITE; LIPOPROTEINS;
D O I
10.3390/medicina55050198
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background and objective: One of the reasons for thrombosis in chronic heart failure (CHF) might be reactive forms of oxygen activating platelets. The aim of this study was to evaluate the effect of oxidant hypochlorous acid (HOCl) on platelet aggregation and dityrosine concentration in CHF patients and healthy controls. Materials and Methods: CHF patients (n = 67) and healthy (n = 31) were investigated. Heart echoscopy, 6-min walking test, complete blood count, platelet aggregation, and dityrosine concentration were performed. Platelet aggregation and dityrosine concentration were measured in plasma samples after incubation with different HOCl concentrations (0.15, 0.0778, and 0.0389 mmol/L). Results: Platelet aggregation without oxidant was lower (p = 0.049) in CHF patients than in controls. The spontaneous platelet aggregation with oxidant added was higher in CHF patients (p = 0.004). Dityrosine concentration was also higher (p = 0.032) in CHF patients. Platelet aggregation was the highest in samples with the highest oxidant concentration in both healthy controls (p = 0.0006) and in CHF patients (p = 0.036). Platelet aggregation was higher in NYHA III group in comparison to NYHA II group (p = 0.0014). Concentration of dityrosine was significantly higher in CHF samples (p = 0.032). The highest concentration of dityrosine was obtained in NYHA IV group samples (p < 0.05). Intensity of platelet aggregation, analyzed with ADP, was correlated with LV EF (r = 0.42, p = 0.007). Dityrosine concentration was correlated with NYHA functional class (r = 0.27, p < 0.05). Conclusions: The increase in platelet aggregation in CHF and healthy controls shows the oxidant effect on platelets. The increase in dityrosine concentration in higher NYHA functional classes shows a higher oxidative stress in patients with worse condition.
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页数:12
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