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Cholesterol efflux assay of apoA-I elongation constructs. A: Cholesterol efflux in macrophage J774 cells. B: Cholesterol efflux in transfected HEK293 cells. C: Western blots of HDL particles formed in the media of HEK293 cells using apoA-I antibodies. +, HEK293 cells transfected with ABCA-1 vectors; −, HEK293 cells transfected with empty vectors.
