克罗恩病和性结肠炎的临床前蛋白质特征:在大型基于人口的队列中进行的嵌套病例对照研究
Olle Grännö1, Daniel Bergemalm2, Benita Salomon3
1Department of Laboratory Medicine, Clinical Microbiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Gastroenterology
|November 28, 2024
概括
研究人员确定了蛋白质特征,以预测未来的炎症性肠病诊断. 这些生物标志物对早期检测克罗恩病和性结肠炎充满希望.
科学领域:
- 发现生物标志物的发现.
- 蛋白质组学是指蛋白质组学.
- 机器学习在医学中的应用
背景情况:
- 炎症性肠病 (IBD) 诊断需要可靠的生物标志物来早期识别风险.
- 目前的诊断方法可能无法有效地捕捉IBD的临床前阶段.
研究的目的:
- 识别和验证可预测未来炎症性肠病 (IBD) 诊断的蛋白质特征.
- 评估这些特征在早期检测克罗恩病 (CD) 和性结肠炎 (UC) 中的潜力.
主要方法:
- 使用了大量基于人口的队列 (n ≥180,000) 与纵向跟踪.
- 使用Olink平台测量了178种蛋白质,这些蛋白质来自后来患有IBD和匹配对照的人的血液样本.
- 应用机器学习算法来识别和验证发现,验证,初始化和双胞胎队列中的蛋白质签名.
主要成果:
- 一个29蛋白签名高精度区分了临床前克罗恩病 (CD) (AUC 0.85-1.0跨队列).
- 与肠道屏障完整性和巨细胞功能相关的下调蛋白与CD诊断的时间相关.
- 一种独特的蛋白质特征显示出性结肠炎 (UC) 的预测能力,AUC从0.67到0.95.9不等.
结论:
- 确定了强大的蛋白质签名,用于预测未来的CD和UC诊断,在多个独立队列中得到验证.
- 已识别的CD签名对疾病的早期预测具有重大潜力.
- 进一步的研究可能会完善这些签名,用于IBD风险分层的临床应用.
相关概念视频
01:30Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
317
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...
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...
317
01:30Inflammatory Bowel Disease II: Crohn's Disease
185
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...
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...
185
01:27Inflammatory Bowel Disease I: Ulcerative Colitis
138
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...
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...
138
01:17Chronic Bowel Disorders: Introduction
388
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...
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...
388