The plasma specimens were directly applied to commercial quantification colorimetric kits to detect the selected plasma lipid levels. Commercial quantification colorimetric kits were employed to measure the circulating triglycerides (K622-100, BioVision, Milpitas, CA, USA), free fatty acid (K612-100, BioVision), HDL (K613-100, BioVision) and LDL/VLDL (K613-100, BioVision).
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