COMPARATIVE STUDY
JOURNAL ARTICLE

Differential effects of lipoprotein apheresis by lipidfiltration or dextran sulfate adsorption on lipidomic profile

J Gräßler, S Kopprasch, J Passauer, S Fischer, K Schuhmann, S Bergmann, G Siegert, A Shevchenko, S R Bornstein, U Julius
Atherosclerosis. Supplements 2013, 14 (1): 151-5
23357157

OBJECTIVE AND METHODS: Acute modification of plasma lipidomic profile was assessed by top-down shotgun profiling on a LTQ Orbitrap hybrid mass spectrometer in 14 patients treated with two different apheresis techniques: plasma lipidfiltration (LF) and whole blood dextran sulfate adsorption (DSA).

RESULTS: Patients treated with DSA revealed a significantly more pronounced reduction of LDL-cholesterol (LDL-C), a diminished decrease of HDL-cholesterol (HDL-C) and triglycerides (TG), and a similar reduction in lipoprotein (a) (Lp(a)) level. Against the overall tendency of reduction of lipid metabolites of all lipid classes in post-apheresis plasma, independent of apheresis technology applied, a highly significant increase of phosphatidylethanolamines (PE) in response to DSA was observed.

CONCLUSION: These data indicate that DSA technology may be associated with an activation or damage of blood cells at contact surface which subsequently leads to a massive liberation of cellular and membrane PE's. Pathophysiological consequences, especially with respect to coagulation system and oxidative stress, have to be further elucidated.

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