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Inflammatory Bowel Disease II: Crohn's Disease01:30

Inflammatory Bowel Disease II: Crohn's Disease

Introduction
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by transmural...
Inflammatory Bowel Disease III: Crohn's Disease01:25

Inflammatory Bowel Disease III: Crohn's Disease

Crohn’s disease is a chronic, relapsing form of inflammatory bowel disease characterized by segmental, transmural inflammation that can affect any part of the gastrointestinal tract. Its pathogenesis arises from a combination of genetic susceptibility, environmental exposures, epithelial barrier dysfunction, and immune dysregulation. Together, these factors lead to an exaggerated immune response against components of the gut microbiome.Genetic and Environmental InfluencesMultiple genetic...
Inflammatory Bowel Disease I: Introduction01:26

Inflammatory Bowel Disease I: Introduction

Inflammatory bowel disease is a group of chronic disorders marked by recurrent inflammation of the gastrointestinal tract due to an abnormal immune response against gut microflora. This leads to tissue damage. The two main forms are Crohn’s disease and ulcerative colitis.Crohn’s DiseaseCrohn’s disease is a relapsing inflammatory disorder that can affect any part of the GI tract, from the mouth to the anus. It involves all layers of the bowel wall (transmural) and shows “skip lesions” in which...
Inflammatory Bowel Disease IV: Clinical Manifestations01:20

Inflammatory Bowel Disease IV: Clinical Manifestations

Inflammatory bowel disease (IBD) encompasses two major chronic disorders—ulcerative colitis and Crohn’s disease—each characterized by relapsing episodes of gastrointestinal inflammation. Although they share certain clinical features, their patterns of involvement and manifestations differ in ways that aid diagnosis and guide management.Ulcerative ColitisUlcerative colitis is limited to the colon and rectum and involves continuous inflammation of the mucosal layer. The disease course is marked...
Chronic Bowel Disorders: Introduction01:17

Chronic Bowel Disorders: Introduction

Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Inflammatory Bowel Disease I: Ulcerative Colitis01:27

Inflammatory Bowel Disease I: Ulcerative Colitis

Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...

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クローン病 (Crohn's disease) とは クローン病 (Crohn's disease) とは クローン病 (Crohn's disease) とは クローン病 (Crohn disease) とは クローン病

Daniel C Baumgart1, William J Sandborn

  • 1Department of Medicine, Division of Gastroenterology and Hepatology, Charité Medical Centre, Virchow Hospital, Medical School of the Humboldt-University of Berlin, Berlin, Germany. daniel.baumgart@charite.de

Lancet (London, England)
|August 24, 2012
PubMed
まとめ
この要約は機械生成です。

クローン病は,遺伝と環境によって引き起こす免疫系の機能不全を伴うもので,胃腸および全身の炎症につながる. 早期診断と標的治療は,この慢性疾患の管理に不可欠です.

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Chronic Salmonella Infection Induced Intestinal Fibrosis
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科学分野:

  • 胃腸内科と免疫学について
  • 慢性炎症性疾患 慢性炎症性疾患とは

背景:

  • クローン病は,再発性全身性炎症性疾患で,消化管に影響を与え,腸外症状を引き起こす.
  • 遺伝的および環境的要因は,免疫機能の調節不全を誘発し,先天的および適応的免疫の両方に影響します.

研究 の 目的:

  • クローン病の疫学,免疫生物学,自然史を含む,クローン病の包括的な概要を提供する.
  • 新しい治療目標,リスクの階層化,エビデンスに基づいた診断および管理戦略の概要を述べる.
  • クローン病の治療目標と予防策の進化を調査する.

主な方法:

  • 感受性の位置を特定する全ゲノム関連研究 (GWAS) のレビュー.
  • 生まれながらの免疫経路 (腸内障壁,微生物認識) と適応免疫応答 (T細胞,サイトカイン) の分析.
  • 診断作業アルゴリズム,高度なイメージング (内視鏡,超音波,MRI,CT),およびバイオマーカーに関する議論.

主要な成果:

  • GWASは,免疫ホメオスタシスを破壊するために環境要因と相互作用する遺伝的傾向を明らかにします.
  • 主要な免疫機能障害には,腸内障壁の障害,微生物認識の障害,T細胞の不均衡などがあります.
  • コメンサルの微生物群の多様性の減少は,クローン病の病原化と関連しています.

結論:

  • 遺伝的,環境的,免疫的要因の複雑な相互作用を理解することは,クローン病の管理の鍵です.
  • インテグリンやケモカイン受容体などの新しい治療標的は,有望な治療法を提供している.
  • 早期診断,リスク分層化,および先進的な治療法を含む多面的なアプローチは,患者のアウトカムを改善するために不可欠です.