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Related Concept Videos

Physiology of Enteric Nervous System and Gut Health01:05

Physiology of Enteric Nervous System and Gut Health

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The gastrointestinal tract, responsible for the digestion and absorption of nutrients, is safeguarded by the intestinal barrier, which consists of secretory, physical, and immune components. At the forefront is the secretory barrier, composed of essential elements such as mucus, gut microbiota, and defense proteins. They collaborate to break down food particles, facilitate nutrient absorption, and maintain optimal gut health. These secretory components ensure the smooth functioning of the...
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Surface Membrane Barriers01:18

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The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
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Physiology of the Gastrointestinal System III: Elimination01:26

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The gastrointestinal elimination process involves a complex interplay of neural and hormonal mechanisms that coordinate the final waste removal from the body. This intricate operation encompasses the absorption of water and electrolytes, vital for transforming the remaining indigestible food matter into feces. The large intestine is pivotal in water and electrolyte absorption, forming feces from unabsorbed minerals, undigested food, bacteria, bile pigments, and shed epithelial cells. Essential...
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Microbiota-gut-brain axis: interplay between microbiota, barrier function and lymphatic system.

Miaomiao Zhuang1, Xun Zhang2, Jun Cai1,3

  • 1Hypertension Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease of China, National Center for Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Gut Microbes
|August 25, 2024
PubMed
Summary
This summary is machine-generated.

The gut microbiome communicates with the brain, influencing health and disease. Understanding the microbiota-gut-brain axis offers new treatment potential for gut and neurological disorders.

Keywords:
Microbiota-gut-brain-axisblood brain barrierintestinal barrierlacteallymphatic system

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Area of Science:

  • Microbiology
  • Neuroscience
  • Gastroenterology

Background:

  • The human gut hosts trillions of microorganisms forming a complex microbiome.
  • The gut microbiome significantly impacts human health, aging, and disease.
  • The microbiota-gut-brain axis describes bidirectional communication between gut microbes and the host.

Purpose of the Study:

  • To review current knowledge on the microbiota-gut-brain axis.
  • To explore mechanisms of gut microbial influence on barrier integrity and host physiology.
  • To propose microbiota-mediated multi-barrier modulation for therapeutic applications.

Main Methods:

  • Literature review of interdisciplinary research on the microbiota-gut-brain axis.
  • Analysis of microbial roles in neural transmission, metabolites, hormones, and immunity.
  • Discussion of the lymphatic network's role in barrier function.

Main Results:

  • Gut microbes influence intestinal and blood-brain barrier integrity.
  • Mechanisms involve neural, metabolic, hormonal, and immune pathways.
  • The lymphatic system is a key, yet underappreciated, communication conduit.

Conclusions:

  • The microbiota-gut-brain axis is crucial for health and disease.
  • Microbiota-mediated multi-barrier modulation is a promising therapeutic strategy.
  • Further research into this axis will advance understanding of human health and disease.