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低密度脂蛋白和高密度脂蛋白胆固醇

ID: ANH15145chis
如果你或你认识的人被诊断患有高胆固醇,了解胆固醇是什么以及为什么控制它很重要是很重要的。胆固醇是一种由肝脏产生的类似脂肪的物质,也来自于你摄入的食物,然后被包装成称为脂蛋白的颗粒。身体需要胆固醇来制造激素、维生素D和一种帮助你消化食物的物质——胆汁。本视频讨论了两种携带胆固醇的脂蛋白——低密度脂质蛋白(LDL)胆固醇,也被称为坏胆固醇;高密度脂蛋白(HDL)胆固醇,也被称为好胆固醇。低密度脂蛋白在血液中流动,将胆固醇运送到需要它的细胞。如果身体有太多的低密度脂蛋白,它会在动脉壁堆积。低密度脂蛋白和其他物质在动脉壁形成脂肪沉积称为斑块。随着时间的推移,斑块会使动脉变窄,减少血液流动。低密度脂蛋白携带胆固醇进入斑块。这就是为什么LDL胆固醇被称为坏胆固醇。这种斑块通常会在冠状动脉积聚,冠状动脉是为心脏供血的血管。这种斑块的积聚会导致冠状动脉疾病,增加心脏病发作的风险。斑块在其他动脉中积聚,比如颈部的颈动脉,会减少流向大脑的血液,增加卒中的风险。肝脏也制造高密度蛋白质(HDL)胆固醇,也被称为好胆固醇。高密度脂蛋白有助于从你的细胞、组织和血管斑块中去除多余的胆固醇。这就是为什么高密度脂蛋白胆固醇被称为好胆固醇。高密度脂蛋白将多余的胆固醇返回到肝脏,肝脏将它从你的身体中移除。如果在查看了这些信息后,你对胆固醇或任何帮助你控制高胆固醇的药物有疑问,请咨询医生。重要的是要按照医生的指示服用药物,并报告所发生的任何副作用。

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