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相关概念视频

Inflammatory Bowel Disease II: Crohn's Disease01:30

Inflammatory Bowel Disease II: Crohn's Disease

401
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...
401
Inflammatory Bowel Disease I: Ulcerative Colitis01:27

Inflammatory Bowel Disease I: Ulcerative Colitis

345
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...
345
Chronic Bowel Disorders: Introduction01:17

Chronic Bowel Disorders: Introduction

543
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...
543
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy01:30

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy

430
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...
430
Inflammatory Bowel Disease V: Surgical Management01:21

Inflammatory Bowel Disease V: Surgical Management

225
Surgical interventions for inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, are essential in managing symptoms and addressing complications. The selection of surgical procedures is contingent upon the specific conditions and complications that stem from these illnesses.
Here are some common surgical interventions for IBD:
225
Irritable Bowel Syndrome I: Introduction01:17

Irritable Bowel Syndrome I: Introduction

402
Irritable Bowel Syndrome (IBS) is characterized by functional disturbances in the gastrointestinal system, presenting a cluster of symptoms without evident structural or biochemical abnormalities. It primarily affects the large intestine and may cause abdominal pain, bloating, excessive gas, diarrhea, constipation, or both.
IBS is a chronic condition that can persist over a long period or recur frequently.
The pathogenesis of IBS involves a complex interplay of the following factors:
Altered...
402

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相关实验视频

Updated: Sep 18, 2025

A TNBS-Induced Rodent Model to Study the Pathogenic Role of Mechanical Stress in Crohn's Disease
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在炎症性肠病中,大脑结构和功能发生变化.

Jennifer Kornelsen1,2, Kelcie Witges2, Jennifer Labus3

  • 1University of Manitoba, Department of Radiology, Winnipeg, Manitoba, Canada.

Neuroimage. Reports
|June 26, 2025
PubMed
概括

这项研究揭示了与健康对照人群相比,炎症性肠病 (IBD) 患者的大脑结构和功能连接的显著差异. 这些发现突出了大脑-肠轴.

关键词:
克罗恩氏病 (CD) 是一种疾病.功能连接 (FC) 功能连接功能性磁共振成像 (fMRI) 是一种功能性磁共振成像.炎症性肠病 (IBD) 是一种炎症性肠病.静止状态网络 (RSN) 是一个静止状态网络.性结肠炎 (UC) 是一种

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科学领域:

  • 神经胃肠病学 神经胃肠病学
  • 神经成像是一种神经成像.
  • 炎症性肠道疾病研究研究

背景情况:

  • 大脑-肠轴在炎症性肠病 (IBD) 的病理生物学中起着至关重要的作用.
  • 了解大脑结构和功能连接 (FC) 对于阐明IBD机制至关重要.
  • 以前的研究表明,IBD中中枢神经系统和胃肠道之间存在复杂的相互作用.

研究的目的:

  • 与健康对照组 (HC) 相比,研究IBD患者的大脑结构和FC的差异.
  • 探索IBD亚型之间大脑结构和FC的变化:性结肠炎 (UC) 和克罗恩病 (CD).
  • 在IBD中建立大脑功能连接和大脑-肠轴之间的关系.

主要方法:

  • 使用磁共振成像 (MRI) 来评估大脑结构和FC.
  • 该研究包括111名患有IBD (76名UC,35名CD) 和74名HC的参与者.
  • 使用基于voxel的形态测量,兴趣区域分析和独立组件分析.

主要成果:

  • 在IBD患者和HC患者之间观察到大脑结构和FC的显著差异.
  • 在默认模式,小脑和视觉网络中注意到了这些差异.
  • 在UC和CD亚型之间发现了大脑结构和FC的明显变化.

结论:

  • 这项研究证实IBD患者大脑结构和功能连接的显著变化.
  • 这些发现强调了大脑-肠轴在IBD病理生理学的参与.
  • 这些结果为进一步研究IBD的神经基础和潜在的治疗点提供了基础.