期刊
ACTA HAEMATOLOGICA
卷 132, 期 1, 页码 100-107出版社
KARGER
DOI: 10.1159/000355719
关键词
Hemolysis; Splenectomy; Thalassemia; Thrombophilia
类别
The relationship between asplenia and thrombophilia in beta-thalassemia disease patients is not yet completely understood. One hundred and ten adult hemoglobin (Hb) E/beta-thalassemia (E/beta-Thal) disease outpatients, dichotomized according to the presence or absence of the spleen, were prospectively studied for evidence of intravascular hemolysis (IVH) and vascular endothelial cell (EC) activation. Biomarkers of IVH (serum cell-free Hb), EC [soluble E-selectin (sE-selectin) and soluble vascular cell adhesion molecule 1 (sVCAM-1)], platelet and EC [soluble P-selectin (sP-selectin)], inflammation [high-sensitivity C-reactive protein (hs-CRP)], and coagulation [thrombin-antithrombin complexes (TAT)] activation, as well as other selected blood tests were determined. The 61 splenectomized patients had a more severe hemolytic disease and higher levels of cell-free Hb and ferritin (p = 0.003), sE-selectin, sP-selectin, hs-CRP, and TAT (p < 0.05). However, serum levels of sVCAM-1 were not different between the two groups. The findings suggested IVH and EC activation. Together with chronic iron overload and chronic low-grade inflammation activation, the findings extend our understanding of the mechanism of thrombophilia in splenectomized E/beta-Thal disease patients. (C) 2014 S. Karger AG, Basel
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