表观遗传学和复发性尿路感染:关于当前研究和潜在的临床应用的最新情况
Ghazal Aghagoli1,2, Alexey V Fedulov1,3, Julia K Shinnick1,2
1The Warren Alpert Medical School of Brown University, Providence, RI 02912, USA.
Epigenomics
|October 31, 2023
概括
这项研究调查了尿路病原性大肠杆菌 (大肠杆菌) 如何导致膀细胞的表观遗传变化,这可能导致尿路感染 (UTI) 的复发. 发现这些机制可能有助于开发新的尿路感染治疗方法.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 微生物学 微生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 经常性泌尿道感染 (UTI) 是一个重大的健康挑战.
- 泌尿病原性大肠杆菌 (E. coli) 是尿路感染的主要致病原体.
- 在大肠杆菌感染期间,尿皮细胞内表观遗传修饰的作用尚未完全理解.
研究的目的:
- 探索由尿病原性大肠杆菌诱导的 uroepithelial 细胞中的表观遗传变化.
- 根据这些表观遗传变化,确定复发性尿路感染的潜在治疗点.
主要方法:
- 在感染尿病原性大肠杆菌后,研究人类尿表细胞的表观遗传修饰 (例如,DNA甲基化,基因素修饰) .
- 利用分子生物学技术分析与表观遗传改变相关的基因表达变化.
主要成果:
- 尿病原性大肠杆菌感染会诱导尿皮细胞的特定表观遗传变化.
- 这些表观遗传修饰与与尿路感染病原体相关的基因表达特征改变相关.
- 初步数据表明治疗干预的潜在途径.
结论:
- 尿表皮细胞的表观遗传失调是尿病原性大肠杆菌诱导的复发性尿路感染的关键因素.
- 针对这些表观遗传机制为新的尿路感染疗法提供了一个有希望的战略.
相关概念视频
Urinary Tract Infection II: Pathophysiology
18
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...
18
Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care
14
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...
14
Urinary Tract Infection I: Introduction
22
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...
22
Urine Studies II: Urine Culture and Sensitivity Test
36
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...
36
Acute Pyelonephritis I: Introduction
20
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...
20
Urinary Tract Infection IV: Nursing Management
17
In managing urinary tract infections (UTIs) in nursing, a comprehensive assessment is essential. Begin by gathering subjective data, such as the patient’s complaints of dysuria (painful urination), urinary frequency, urgency, suprapubic pain, and any lower abdominal discomfort. This information can be complemented by questions regarding previous UTIs, sexual activity, and personal hygiene practices, which can provide insight into risk factors. Objective assessment should focus on signs...
17


