Clinical Course in Cystic Fibrosis: The Effects of Pseudomonas Aeruginosa and Potential Modifier Genes
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 76
- 试验地点
- 4
- 主要终点
- There is a relationship between the virulence characteristics of P.aeruginosa involved inpersistent infection of the lung and the genetic profile of CF patients.
研究概览
简要总结
This study will examine 1) the role of hereditary factors in cystic fibrosis; i.e., the relationship of the disease to specific gene variations, and 2) the role of bacterial products involved in lung infections substances produced by bacteria may worsen the disease.
Patients with cystic fibrosis who are being followed by the Medical College of Wisconsin or the University of Wisconsin-Madison are eligible for this study. Participants will have blood tests, pulmonary function tests, a sputum culture, and buccal swabbing (cotton swabbing of the inside of the cheek to collect cells for DNA study). In addition, their medical records will be reviewed for a history of lung infections and the results of various tests, including pulmonary function studies, chest X-rays and bacterial cultures. Blood samples collected previously at the Medical College of Wisconsin or the University of Wisconsin-Madison will also be analyzed for antibodies to bacteria.
Although this is a one-time study, participants may be asked to return for repeated tests.
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详细描述
Individuals with cystic fibrosis (CF) are susceptible to chronic bacterial colonization by Pseudomonas aeruginosa, which results in deterioration of lung function and, eventually, death. In this study, we hope to improve our understanding of the innate immune response to infection by strains of P. aeruginosa that express type III cytotoxins and to delineate better the role of modifier genes in disease progression.
We will examine relationships between the patient's clinical course, the presence of antibodies to P. aeruginosa, and single nucleotide polymorphisms in suspected CF modifier genes.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Other
入排标准
- 年龄范围
- 9 Years 至 80 Years（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
There is a relationship between the virulence characteristics of P.aeruginosa involved inpersistent infection of the lung and the genetic profile of CF patients.
时间窗: End of study
There is a relationship between the virulence characteristics of P.aeruginosa involved in persistent infection of the lung and the genetic profile of CF patients.
次要结局
- Antibodies to the components of the type III secretion pathway can be used as an accurate measure of acute infection and colonization of the CF lung by virulent strains of P. aeruginosa. There is a relationship between modifier genotypes and sur...(End of Study)