食脂肪酸调节肠道微生物群-衍生的三甲基胺-N-氧化物:潜在的机制和未来的前景
1Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey.
Nutrients
|December 11, 2025
概括
饮食中的脂肪成分显著影响肠道微生物群,影响代谢障碍. 优化脂肪酸可能为预防心血管疾病提供治疗策略.
科学领域:
- 微生物学 微生物学
- 营养科学 营养科学
- 代谢健康 代谢健康
背景情况:
- 高脂肪饮食与肥胖,糖尿病和心血管疾病等代谢障碍有关.
- 肠道微生物群的组成是这些饮食诱导效应的关键媒介.
- 脂肪酸和和链条长度极大地影响肠道微生物种群.
研究的目的:
- 为了研究食脂肪成分如何调节肠道微生物群.
- 探索脂肪酸影响三甲基胺 (TMA) 和三甲基胺N氧化物 (TMAO) 生产的机制.
- 通过肠道微生物群调节来确定潜在的饮食策略,以预防代谢和心血管疾病.
主要方法:
- 分析和长链脂肪酸如何通过增加结肠氧气和胆酸变化等机制促进TMA的产生.
- 评估短链脂肪酸 (SCFA) 和omega-3多不和脂肪酸如何有益地改变肠道pH值和微生物组成.
- 评估肠道微生物群衍生代谢物在代谢障碍发展中的作用.
主要成果:
- 和长链脂肪酸促进TMA的产生,这是TMAO的前体,与心血管疾病有关.
- 特定的肠道条件 (例如,增加氧气, taurine 结合胆酸) 有利于产生 TMA 的细菌.
- 通过改变肠道pH值和促进SCFA生产者,SCFA和omega-3PUFA减少产生TMA的细菌.
结论:
- 饮食中的脂肪酸成分是肠道微生物群结构和功能的关键决定因素.
- 像TMAO这样的微生物群衍生代谢物在代谢和心血管健康中起着重要作用.
- 准饮食脂肪酸概况为管理代谢障碍和预防心血管疾病提供了一个有希望的治疗途径.
相关概念视频
Bacterial Flora of the Large Intestine
1.5K
The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
1.5K
What is Monogastric Digestion?
74.9K
The human body contains a monogastric digestive system. In a monogastric digestive system, the stomach only contains one chamber in which it digests food. Several other animal species also have monogastric digestive systems, including pigs, horses, dogs, and birds. This chapter, however, focuses on the human digestive system.
74.9K
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
614
Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
614
Lipid Catabolism
815
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...
815
Overview of Fatty Acid Metabolism
36.2K
Lipids also are sources of energy that power cellular processes. Like carbohydrates, lipids are composed of carbon, hydrogen, and oxygen, but these atoms are arranged differently. Most lipids are nonpolar and hydrophobic. Major types include fats and oils, waxes, phospholipids, and steroids.
Fatty acids are catabolized in a process called beta-oxidation, which takes place in the matrix of the mitochondria and converts their fatty acid chains into two-carbon units of acetyl groups. The acetyl...
Fatty acids are catabolized in a process called beta-oxidation, which takes place in the matrix of the mitochondria and converts their fatty acid chains into two-carbon units of acetyl groups. The acetyl...
36.2K


