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相关概念视频

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...
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Cholesterol: Significance and Regulation01:29

Cholesterol: Significance and Regulation

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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...
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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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Lipid Absorption01:24

Lipid Absorption

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Dietary triglycerides from chyme in the duodenum are mixed with bile salts produced by the liver to emulsify fats. As a result, large droplets are broken down into smaller ones, increasing the surface area for enzymatic action. Once emulsified, pancreatic lipases hydrolyze the triglycerides into free fatty acids and monoglycerides.
These breakdown products bind with bile salts and lecithin to form micelles, which quickly pass between microvilli to come in close contact with the apical...
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Lipids: Dietary Sources and Requirements01:18

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Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ...
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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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中年和老年印度人脂质异常的农村和城市差异

Priya Chatterjee1,2, Sakshi Arora1, Pooja Rai1

  • 1Centre for Brain Research, Indian Institute of Science, Bangalore, 560012, India.

BMC public health
|August 23, 2025
PubMed
概括

城市地区的总胆固醇和LDL胆固醇水平较高. 农村地区的高胆固醇和高胆固醇水平较低, 表明需要针对性的干预措施.

关键词:
血脂失调症印度年长人口流行情况农村与城市之间的差异

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科学领域:

  • 心脏病学
  • 公共卫生
  • 老年学

背景情况:

  • 脱脂症是心血管疾病 (CVD) 的重要危险因素.
  • 脱脂症的发病率通常在地理位置上有所不同,在城市环境中发病率更高.
  • 这项研究调查了印度老龄化人口的脂质障碍,比较农村和城市的脂质异常.

研究的目的:

  • 确定印度老龄化人口中脱脂症的患病率.
  • 为了比较农村和城市的脂质异常.
  • 在这些人群中确定与脱脂症相关的危险因素.

主要方法:

  • 分析了印度南部2,797名农村和430名城市参与者的基线数据.
  • 使用标准实验室技术测量脂质概况;根据NCEP ATP-III标准分类异常.
  • 使用Z测试和多变量逻辑回归的风险因子分析对脂质异常比例进行比较.

主要成果:

  • 在城市人口中,高总胆固醇 (37.0%对28.4%) 和LDL-c (33.5%对26.8%) 的患病率较高.
  • 农村人口呈现较高的低HDL-c (72. 4%对比44. 2%),高的甘油三 (45. 7%对比38. 6%) 和升高的脂质风险比率.
  • 在这两种情况下,女性患多种脂质异常的风险更高;糖尿病,超重,肥胖和不活动与脂质问题有关,而在城市地区则较少.

结论:

  • 农村和城市的老年印度人都有很高的脂质异常.
  • 增加心血管疾病的风险需要有针对性的干预措施来减轻这些社区的疾病负担.