関連する実験動画
Updated: Jul 13, 2026

07:57
Assessing Whole-Body Lipid-Handling Capacity in Mice
Published on: November 24, 2020
禁食と非禁食のトリグリセリドの比較と女性における心血管疾患のリスク
Sandeep Bansal1, Julie E Buring, Nader Rifai
1Donald W. Reynolds Center for Cardiovascular Research, Brigham and Women's Hospital, Boston, MA 02215, USA.
JAMA
|July 20, 2007
まとめ
禁食中のトリグリセリドのレベルは,禁食中のレベルとは異なり,女性における心血管疾患のリスクの増加と独立して関連しています. この発見は,心臓血管疾患のリスク評価のための非断食トリグリセリド測定の重要性を強調しています.
科学分野:
- 心血管医学は,心臓血管医学である.
- エンドクリノロジー エンドクリノロジー
- エピデミオロジー エピデミオロジー
背景:
- 心血管疾患 (CVD) のリスクにおけるトリグリセリドの役割は,特に食後の高トリグリセリデミアの重要性について議論されています.
- 標準的な脂質パネルは,断食トリグリセリドを測定し,動脈硬化症に対する食後の影響を潜在的に見過ごします.
研究 の 目的:
- 非断食と断食中のトリグリセリド値と将来の心血管疾患のリスクとの関連を調査する.
- 禁食中のトリグリセリド濃度がCVDリスクに対する独立した予測値を提供しているかどうかを判断する.
主な方法:
- Women's Health Study (女性健康研究) から,当初健康だった米国女性26,509人を対象に実施された前向きな研究です.
- トリグリセリド濃度 (断食および断食なし) は入学時に測定され,追跡期間の中央値は11.4年であった.
- 事故性心血管疾患の危険比率を計算し,様々な危険因子に調整した.
主要な成果:
- 断食状態と断食状態のトリグリセリドレベルは,従来の心臓リスク因子およびベースラインにおけるインスリン抵抗性マーカーと相関していました.
- 禁食中のトリグリセリドレベルは,完全に調整されたモデルにおいて,心臓血管疾患との強い独立した関連性を示した.
- 禁食トリグリセリドレベルは,他の脂質とインスリン抵抗性のマーカーを調整した後,弱まった関連を示しました.
結論:
- 禁食中のトリグリセリドレベルは,伝統的なリスク因子やその他の脂質測定を超えて,女性におけるインシデント心血管イベントと独立して関連しています.
- 禁食トリグリセリドレベルは,このコホートにおける心血管疾患の最小限の独立した予測値を示した.
- これらの発見は,非断食トライグリセリドの測定が,包括的な心血管リスク評価に不可欠である可能性があることを示唆しています.
関連する概念動画
Blood Studies for Cardiovascular System III: Serum Lipid Profile
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...
Fats as Energy Storage Molecules
Triglycerides are a form of long-term energy storage molecules. They are made of glycerol and three fatty acids. To obtain energy from fat, triglycerides must first be broken down by hydrolysis into their two principal components, fatty acids and glycerol. This process, called lipolysis, takes place in the cytoplasm. The resulting fatty acids are oxidized by β-oxidation into acetyl-CoA, which is used by the Krebs cycle. The glycerol that is released from triglycerides after lipolysis directly...
Cholesterol: Significance and Regulation
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...
Metabolic States of the Body: Fasting and Starvation
During the initial hours of fasting, the body uses up its glycogen stores as an energy source. Once these glycogen reserves are depleted, the body begins breaking down stored triglycerides and structural proteins. During this stage, glycerol becomes a key substrate for gluconeogenesis, while free fatty acids undergo beta-oxidation to provide energy for tissues, such as skeletal muscle. In the fasting state, the body spares protein breakdown as much as possible to conserve muscle and structural...
Lipids: Dietary Sources and Requirements
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 meats, shellfish,...
Overview of Lipid Metabolism
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...
