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相关概念视频

Bile01:19

Bile

438
Bile is a crucial bodily fluid, characterized by its yellow-green color and alkaline nature. Produced in the liver, it is transported through the common hepatic duct into either the cystic duct, leading to the gallbladder, or directly into the common bile duct. The flow of bile is regulated by the sphincter of Oddi located at the entrance of the duodenum. When this sphincter is closed, bile is redirected to the gallbladder for storage and concentration.
Bile is released when dietary fats enter...
438
Anatomy of the Intestines01:23

Anatomy of the Intestines

71.2K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
71.2K
Lipid Digestion01:06

Lipid Digestion

90.1K
Lipids are large molecules that are generally not water-soluble. Since most of the digestive enzymes in the human body are water-based, there are specific steps the body must take to break down lipids and make them available for use.
90.1K
Lipid Absorption01:24

Lipid Absorption

336
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...
336
Overview of Fatty Acid Metabolism01:28

Overview of Fatty Acid Metabolism

30.1K
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...
30.1K
Phase II Reactions: Glutathione Conjugation and Mercapturic Acid Formation01:22

Phase II Reactions: Glutathione Conjugation and Mercapturic Acid Formation

129
Glutathione, a tripeptide made up of glutamate, cysteine, and glycine, is a critical player in the detoxification of drugs and xenobiotics via a process known as glutathione conjugation or mercapturic acid formation. This phase II biotransformation reaction involves the covalent binding of glutathione to a drug or its metabolite, enhancing the compound's water solubility and enabling its excretion.
Several distinctive characteristics distinguish glutathione conjugation from other phase II...
129

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相关实验视频

新型微生物转化胆酸:生物合成,结构和功能

Qi Zhao1, Zilei Duan1, Ren Lai1

  • 1Engineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), State Key Laboratory of Genetic Evolution & Animal Models, Sino-African Joint Research Center, and New Cornerstone Science Laboratory, Kunming Institute of Zoology, the Chinese Academy of Sciences, No.17 Longxin Road, Kunming, Yunnan 650201, PR China.

Pharmacological research
|May 16, 2025
PubMed
概括
此摘要是机器生成的。

微生物群修改胆汁酸,产生具有多种健康功能的新化合物. 这篇评论详细介绍了这些新型胆汁酸,它们的产生,以及它们在健康和疾病中的作用.

关键词:
BSH BSH 的意思是什么?胆酸是什么意思 胆酸是什么意思陈二氧基氨 (PubChem CID: 86107595) 是一种化学物质.陈二氧化基氨酸 (PubChem CID: 156963135) 的使用情况胆氨酸 (PubChem CID: 71058927) 是一种氨酸.胆基氨酸 (PubChem CID: 156963130) 是一种基氨酸.脱氧基氨酸 (PubChem CID: 156963138) 的使用情况脱氧醇基氨酸 (PubChem CID: 156963146) 是一种脱氧胆烯 (PubChem CID: 156963147) 的使用情况脱氧胆氨酸 (PubChem CID: 156963144) 的使用情况在 FXR 和 FXR 之间.异甲基醇酸 (PubChem CID: 94228) 的使用情况绝缘醇醇酸 (PubChem CID: 164853) 的使用情况我们的肠道微生物组.免疫调节 免疫调节

相关实验视频

科学领域:

  • 微生物学和生物化学
  • 人类健康和疾病

背景情况:

  • 肠道微生物群通过改变胆汁酸对人类健康有显著影响.
  • 最近的进展已经确定了许多新的微生物修饰胆汁酸,扩大了已知的胆汁酸池和生物活性.

研究的目的:

  • 综合审查最近发现的微生物修饰胆酸的结构,酶,功能和细菌的产生.
  • 突出这些新型胆汁酸作为治疗药物候选者的潜力.

主要方法:

  • 文献综述总结了对微生物修饰胆酸的现有研究.
  • 对已识别的胆酸衍生物,它们产生的细菌和相关功能的分析.

主要成果:

  • 发现了许多新的胆汁酸衍生物,包括氨基合,氨基合和乙基合的形式.
  • 这些化合物表现出各种生物活性,如免疫调节,受体调节和抗菌作用.
  • 特定的细菌物种与各种改良的胆汁酸的产生有关.

结论:

  • 微生物修饰的胆汁酸是新型生物活性化合物的丰富来源.
  • 这些衍生物在生理过程和疾病中起着至关重要的作用,包括炎症性肠病和2型糖尿病.
  • 对这些化合物的进一步研究可能会导致开发新的治疗策略.