書上提到 niacin strongly inhibits lipolysis in adipose tissue—the primary producer of circulating free fatty acids. The liver normally utilizes these circulating fatty acids as a major precursor for triacylglycerol synthesis. Thus, niacin causes a decrease in liver triacylglycerol synthesis, which is required for VLDL production. LDL (the cholesterol-rich lipoprotein) is derived from VLDL in the plasma. Therefore, a reduction in the VLDL concentration also results in a decreased plasma LDL concentration. Thus, both plasma triacylglycerol (in VLDL) and cholesterol (in VLDL and LDL) are lowered . 以上看得懂 Furthermore, niacin treatment increases HDL cholesterol levels. niacin的治療會增加HDL的濃度 請問是為什麼呢? --

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