相关实验视频
Updated: Jul 10, 2026

08:40
Establishment and Characterization of UTI and CAUTI in a Mouse Model
Published on: June 23, 2015
一个散布的多抗药克隆组的尿病原菌大肠杆菌在 pyelonephritis 中
James R Johnson1, Amee R Manges, Timothy T O'Bryan
1Medical Service, Minneapolis VA Medical Center and Department of Medicine, University of Minnesota, Minneapolis, MN, USA. johns007@tc.umn.edu
Lancet (London, England)
|July 10, 2002
概括
克隆组A (CGA) 大肠杆菌,是尿路感染的原因,广泛存在,并且与炎和囊炎病例中的co-trimoxazole耐药性有关.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 遗传学 是一个遗传学.
背景情况:
- 尿路感染 (UTI) 中抗生素耐药性是一个越来越令人担忧的问题.
- 在大肠杆菌中对co-trimoxazole的耐药性是导致急性炎症治疗失败的重要因素.
- 皮叶龙炎中对特里莫克萨抗性大肠杆菌的特定克隆起源在很大程度上仍未确定.
研究的目的:
- 调查埃舍里希亚大肠杆菌对co-trimoxazole耐药性的克隆基础,导致急性气炎.
- 确定与尿路感染中抗生素耐药性相关的特定大肠杆菌克隆的患病率和传播.
主要方法:
- 分子和血清学分析对170个埃舍里希亚大肠杆菌尿液分离物进行了分析,这些尿液分离物来自患有急性肺炎的妇女 (1994-1996).
- 分离物以其克隆组为特征,重点关注克隆组A (CGA).
- 研究了CGA分离物的地理分布和历史关系.
主要成果:
- 十二% (7%) 的炎炎分离物属于克隆A组 (CGA).
- 在29个 (34%) 的co-trimoxazole耐药分离物中,有10个被确定为CGA.
- 在美国,CGA分离物在地理上是多样化的,并且与英国的历史性疫情克隆 (O15:K52:H1) 有关.
结论:
- 克隆类A组是急性炎症中对co-trimoxazole耐药性的重要贡献者,反映了其在急性囊炎中的作用.
- CGA表现出广泛的传播和持续性,对尿路感染治疗构成持续的挑战.
- 了解抗生素耐药性的克隆流行病学对于有效管理尿路感染至关重要.
相关概念视频
Urinary Tract Infection I: Introduction
Urinary tract infections (UTIs) impact various parts of the urinary system, including the kidneys, ureters, bladder, and urethra. These infections are generally bacterial, with Escherichia coli being the most common causative agent, often originating from the gastrointestinal tract. However, other bacteria, such as Staphylococcus saprophyticus, Klebsiella pneumoniae, and Proteus mirabilis, are also known to cause UTIs. The type, location, and underlying complexity of the UTI guide both...
Urinary Tract Infection II: Pathophysiology
The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...
Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care
A healthcare provider can diagnose a urinary tract infection (UTI) through several methods:Medical History and Symptoms: The provider will take a detailed medical history and ask about symptoms such as frequent urination, burning sensation during urination, and lower abdominal pain.Urinalysis: A clean-catch urine sample is collected in a sterile container and tested for the presence of bacteria, white blood cells (leukocytes), nitrites, blood, and protein. The presence of leukocytes and...
Acute Pyelonephritis I: Introduction
Pyelonephritis is a bacterial infection that primarily affects the renal parenchyma and collecting system, including the renal pelvis, tubules, and interstitial tissue of one or both kidneys. It can be classified as either acute—a sudden, severe infection—or chronic, which refers to long-term or recurrent kidney infections.The primary cause of acute pyelonephritis (APN) is bacterial infection, with Escherichia coli accounting for approximately 70-80% of cases. Other bacteria, such as Proteus,...
Acute Pyelonephritis II: Diagnostic Studies and Management
Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
Urine Studies II: Urine Culture and Sensitivity Test
A urine culture and sensitivity test is a diagnostic procedure used to identify urinary tract bacterial infections and determine the most effective antibiotics for treatment. This test is generally preferred when a patient shows manifestations of a urinary tract infection, such as frequent or painful urination, cloudy or foul-smelling urine, or lower abdominal pain.Purpose of the TestThe primary goals of a urine culture and sensitivity test are to:Determine the specific bacteria causing the...

