糖和脂质失调:一个双重打击,完美的风暴
1Glycation, Oxidation and Disease Laboratory, Touro University California, Vallejo, CA 94592, USA.
Journal of clinical medicine
|September 9, 2023
概括
增加糖分的可用性,特别是从含糖饮料中获得的糖分,促进心脏代谢障碍. 果糖代谢与葡萄糖相互作用,驱动富含甘油三脂蛋白的合成,并破坏其分解,促进心脏病风险.
科学领域:
- 心血管科学 心血管科学
- 代谢科学 代谢科学
- 公共卫生 营养 公共卫生 营养
背景情况:
- 在过去的50年中,全球糖的供应量大幅增加,这与工业进步和玉米补贴有关.
- 这种糖消费的激增,特别是通过含糖饮料,与心脏代谢障碍的增加有关.
- 心脏代谢性脂质不良症,特征是高甘油富脂蛋白 (TRL),是一个关键的问题.
研究的目的:
- 审查果糖在心脏代谢性失脂症的发展中的作用.
- 综合最近人类关于葡萄糖和果糖在TRL代谢中的相互作用的数据.
- 要突出果糖对TRL合成和代谢的影响.
主要方法:
- 现有科学文献的叙述性审查.
- 对人类果糖和葡萄糖代谢数据的分析.
- 检查TRL新陈代谢,包括VLDL和chylomicrons.
主要成果:
- 果糖代谢,特别是果糖-1-P,作为一个信号分子,促进脂肪合成.
- 葡萄糖和果糖协同增强新生脂质生成,甘油三合成和肝脏中的VLDL生产.
- 果糖提升脂蛋白脂酶的抑制剂 (apoCIII,ANGPTL3),减少TRL代谢,并促进有机残留的积累.
结论:
- 果糖具有双重的协同作用,通过增加TRL合成和减少它们的代谢,促进动脉动脉生成.
- 葡萄糖和果糖代谢之间的相互作用在驱动失脂症方面至关重要.
- 这些发现支持公共卫生倡议,以减少糖的摄入量,并建立安全的消费限制.
相关概念视频
01:24Overview of Lipid Metabolism
1.7K
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...
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...
1.7K
01:29Cholesterol: Significance and Regulation
580
Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
Considering cholesterol and...
580
01:20Lipid-Lowering Drugs: Statins and Miscellaneous Agents
696
Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
696
01:30Atherosclerosis I: Introduction
9
Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...
9
01:30Coronary Artery Disease I: Introduction
20
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...
20
01:25Blood Studies for Cardiovascular System III: Serum Lipid Profile
188
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...
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...
188