Beyond lowering circulating LDL: apheresis-induced changes of systemic oxidative stress markers by four different techniques

Atherosclerosis. Supplements
S KoppraschUlrich Julius

Abstract

Dyslipidemia and oxidative stress are causally related to atherogenesis and cardiovascular disease. We assessed acute changes of systemic oxidative stress biomarkers in thirty-two patients undergoing regular apheresis using four different techniques: heparin-induced extracorporeal LDL precipitation (HELP), direct adsorption of lipoproteins (DALI), lipidfiltration (LF), and immunoadsorption of lipoproteins (IA). All apheresis procedures were similarly effective in lowering LDL cholesterol (-2.5+/-0.2 mmoL/L), oxidized LDL (-52.4+/-4.4 U/L), and levels of antioxLDL antibodies (-59.5+/-15.1 U/L). Among the LDL-apheresis methods investigated, only the DALI technique without prior separation of blood plasma led to a decline in leukocyte count (p=0.01 vs. LF post apheresis) and to decreased phagocyte oxidant-generating activity as evaluated by chemiluminescence. Moreover, DALI was followed by a smaller decrease of blood total antioxidant capacity than the other techniques (p<0.01 vs. HELP post apheresis). Together, our data suggest that compared with other common techniques, the DALI apheresis system is accompanied by the lowest systemic oxidative burden evoked by a single apheresis treatment.

Citations

May 21, 2014·Best Practice & Research. Clinical Endocrinology & Metabolism·Michael M PageJohn R Burnett
Jan 30, 2013·Atherosclerosis. Supplements·Alfonso RamunniPaola Brescia
Dec 17, 2015·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·René WeissViktoria Weber
Apr 12, 2014·Transfusion Medicine·O PignalosaC Napoli
Apr 16, 2020·International Journal of Environmental Research and Public Health·Claire BealeRozanne Kruger

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