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相关概念视频

Overview of Lipid Metabolism01:24

Overview of Lipid Metabolism

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Lipid metabolism is a crucial process in the human body that involves the synthesis and degradation of lipids. This process is essential for energy production, cell membrane formation, and hormone production, among other functions.
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
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Blood Studies for Cardiovascular System III: Serum Lipid Profile01:25

Blood Studies for Cardiovascular System III: Serum Lipid Profile

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Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
557
Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

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Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
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Lipid Catabolism01:25

Lipid Catabolism

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Triglycerides serve as crucial long-term energy storage molecules in microorganisms, providing a dense source of metabolic energy. Their breakdown is mediated by lipases, which hydrolyze triglycerides into glycerol and free fatty acids. Each of these components follows distinct metabolic pathways, ultimately contributing to ATP synthesis and cellular energy homeostasis.Glycerol MetabolismGlycerol, released from triglyceride hydrolysis, is phosphorylated by glycerol kinase to form...
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Atherosclerosis III: Management01:26

Atherosclerosis III: Management

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Management of atherosclerosis involves an integrated strategy encompassing pharmacological treatment, surgical interventions, lifestyle changes, and nutrition therapy to address the multifactorial nature of the disease.Pharmacological TherapyA cornerstone of atherosclerosis management is the use of pharmacological agents. Statins, such as atorvastatin, are pivotal in inhibiting HMG-CoA reductase, an enzyme that catalyzes an initial step in cholesterol synthesis in the liver. This reduction in...
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Lipid-derived Compounds in the Human Body01:31

Lipid-derived Compounds in the Human Body

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Fats and lipids are crucial components in the human body. Some lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, also play unique roles to support various  biological processes .
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
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相关实验视频

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Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles
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比例驱动的脂蛋白映射完善了心脏代谢风险的遗传途径.

S Hani Najafi-Shoushtari, Karsten Suhre, Murugan Subramanian

    Research square
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    这项研究使用英国生物银行数据精确地绘制了血脂调节失调的遗传风险位置. 确定了基于比例的新型标记物,揭示了对脂蛋白代谢和心血管疾病潜在药物标的新见解.

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    Enrichment of Native Lipoprotein Particles with microRNA and Subsequent Determination of Their Absolute/Relative microRNA Content and Their Cellular Transfer Rate
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    科学领域:

    • 遗传学 是一个遗传学.
    • 代谢学 代谢学 代谢学
    • 心血管疾病研究研究

    背景情况:

    • 失调的血脂是心血管事件的关键预测因素.
    • 全基因组关联研究 (GWAS) 已经确定了许多与脂质代谢相关的基因组区域.
    • 将遗传关联转化为临床应用需要了解脂蛋白代谢,运输和重塑 (LPmtr) 中的基因功能.

    研究的目的:

    • 使用与脂蛋白相关的特征及其比率,对脂质风险位点进行深度分子精细映射.
    • 为了确定LPmtr路径的基于比例的新型标记物.
    • 为药物向开发产生新的假设,并揭示超脂血症的机制.

    主要方法:

    • 554个脂质风险位的深度分子精细映射使用168个脂蛋白相关的特征和它们的比率在273,000名英国生物库参与者.
    • 分析基于比例的标记物,包括酸分数,LDL中的化胆固醇和总脂蛋白颗粒数的HDL分数.
    • 以比例驱动的聚类,集成细胞检测和小鼠研究来研究基因功能和通路.

    主要成果:

    • 确定了LPmtr通路的基于比例的新标记物,将遗传位置与特定的生物功能联系起来.
    • 在缺乏特征的脂质风险位置发现了潜在的因果基因.
    • 证明了脂蛋白细映射在产生药物标假设和发现超脂血症机制方面的有用性.
    • 在TG分泌和ER应激反应中涉及miR-148,通过mTORC1.1.将它们与VLDL代谢联系起来.
    • 确定了miR-148a作为Lp (a) 水平的决定因素.

    结论:

    • 使用代谢学数据和GWAS进行脂蛋白精细映射,为脂蛋白粒子生物学提供了新的见解.
    • 评估脂蛋白大小和组成对于理解,预防和治疗脂质相关疾病至关重要.
    • 该研究为心血管疾病和高脂血症中药物向开发产生了新的假设.