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関連する概念動画

Microbiota of the Large Intestine01:27

Microbiota of the Large Intestine

94
The large intestine hosts the most densely populated microbial ecosystem in the human body. This complex community primarily consists of anaerobic bacteria, with Bacillota (formerly Firmicutes) and Bacteroidota (formerly Bacteroidetes) as the predominant groups. The distribution of these microbes varies along different sections of the large intestine, influenced by local environmental factors such as oxygen availability and nutrient composition.The cecum, located at the beginning of the large...
94
Functions of the Gut Microbiota01:18

Functions of the Gut Microbiota

145
The gut microbiota includes trillions of microorganisms that colonize the human gastrointestinal tract, including bacteria, archaea, viruses, and fungi. This complex ecosystem plays a critical role in maintaining intestinal and systemic health. Most of these microbes inhabit the large intestine, establishing a relatively stable and diverse community that contributes to gut homeostasis through various metabolic, immunological, and protective mechanisms.Dominant bacterial phyla, such as...
145
Microbiota of the Stomach and Small Intestine01:27

Microbiota of the Stomach and Small Intestine

74
The human gastrointestinal (GI) tract is characterized by distinct physicochemical conditions that shape its microbial communities. Among these, the stomach presents a particularly challenging environment for microbial colonization due to its highly acidic pH, ranging from 1 to 3. This extreme acidity effectively limits microbial density. However, certain acid-tolerant microorganisms are capable of surviving in this niche. Notably, Helicobacter pylori can colonize the gastric mucosa,...
74
Introduction to the Human Microbiota01:22

Introduction to the Human Microbiota

162
Microorganisms colonize various regions of the human body, including the mouth, nasal passages, throat, stomach, intestines, urogenital tract, and skin. The total number of microbial cells is estimated to range from 10¹³ to 10¹⁴—comparable to, or exceeding, the number of human somatic cells. This host–microbiome relationship has led to the conceptualization of humans as supraorganisms, wherein microbial communities perform vital roles in development, immunity,...
162
Immune Surveillance by NK Cells and Phagocytes01:25

Immune Surveillance by NK Cells and Phagocytes

7.2K
Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
7.2K
Microbiota of the Respiratory Tract01:29

Microbiota of the Respiratory Tract

54
The human respiratory tract, comprising the upper and lower segments, serves as a critical interface with the external environment. The upper respiratory tract (URT)—including the nostrils, sinuses, pharynx, and oropharynx—is heavily colonized by microbes, while the lower respiratory tract (LRT), composed of the larynx, trachea, bronchi, and lungs, was long thought to be sterile. However, recent molecular studies have revealed that the lungs are not devoid of microbes but act more...
54

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関連する実験動画

Updated: Apr 26, 2026

Time-lapse Imaging of Mouse Macrophage Chemotaxis
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Time-lapse Imaging of Mouse Macrophage Chemotaxis

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消化器官の運動性:微生物群とマクロファージが力を合わせる

Michelle L Robinette1, Marco Colonna1

  • 1Washington University School of Medicine, St. Louis, MO 63110, USA.

Cell
|July 19, 2014
PubMed
まとめ

腸内 (gut gut) とは,腸内 (gut) とは,腸内 (gut) とは,腸内 (gut) とは.

科学分野:

  • 胃腸内科 胃腸内科
  • 神経免疫学 神経免疫学とは
  • 微生物学 微生物学とは

背景:

  • 腸内神経系によって調節される消化には,胃腸の運動性が極めて重要です.
  • 腸の複雑な機能には,滑らかな筋肉の収縮と神経制御が含まれています.

研究 の 目的:

  • 胃腸運動の調節メカニズムを調査する.
  • 腸内神経系,免疫系,腸内微生物群の相互作用を探求する.

主な方法:

  • この研究では,腸内神経系,免疫系,腸内微生物群の相互作用を分析した.
  • 研究は腸機能の生理学的調節に焦点を当てた.

主要な成果:

  • Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. Muller et al. メンズ・アンド・アール 免疫システムと腸内微生物群が,胃腸の運動性に大きく影響することを発見しました.

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Depletion and Reconstitution of Macrophages in Mice
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関連する実験動画

Last Updated: Apr 26, 2026

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09:33

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08:50

Depletion and Reconstitution of Macrophages in Mice

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An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions
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  • この相互作用は,消化プロセスに新しい規制層を追加します.
  • 結論:

    • 腸の運動を制御するネットワークは,これまで考えられていたよりも複雑です.
    • 免疫的および微生物的要因を統合することは,消化器の健康を理解するための鍵です.