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Vitamin K epoxide reductase (VKOR) is a key enzyme in the y-carboxylation of proteins associated with important bodily functions (coagulation, bone metabolism, etc.). This feature is particularly used in warfarin therapy, which blocks the VKOR enzyme and leads to production of dysfunctional coagulation proteins. Genetic factors, particularly vitamin K(More)
In this study, we present a case of falsely elevated oestradiol (E2) concentration, determined by two immunoassays, in a breast cancer patient receiving exemestane therapy. The positive bias of immunochemical measurements was revealed using liquid chromatography tandem mass spectrometry which showed undetectable E2 concentration. The discrepancy is expected(More)
OBJECTIVE The objective was to determine the impact of VKORC1 polymorphisms on warfarin anticoagulant therapy (stable warfarin maintenance dose, time required to reach therapeutic dose and time spent in therapeutic range) and its adverse events (overanticoagulation and bleeding events, time to first overanticoagulation or bleeding event, and therapy for(More)
BACKGROUND Acute pyelonephritis is a severe disease which is sometimes difficult to recognize based on clinical symptoms and routinely available diagnostic tests, especially in young children. The aim of this study was to assess the diagnostic value of urinary neutrophil gelatinase-associated lipocalin (uNGAL) as a biomarker of acute pyelonephritis. (More)
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