Comparing Chest Images From MRI to CT in Patients With Cystic Fibrosis (CF)
Cystic FibrosisThe purpose of this research is to learn more about the heart and blood vessels in the lungs of people with cystic fibrosis (CF). This study will include approximately 36 children and adults with CF and 12 children and adults without CF. The study will involve one magnetic resonance imaging (MRI) . The research also includes blood samples to look at inflammation and lung tests called spirometry and Lung Clearance Index (LCI) determined by Multiple Breath Washout test. For the CF subjects, enrollment will be timed to coincide with routine scheduled computerized tomography (CT) or the CF subject may choose to have a CT for research purposes. The MRI will be compared to CT images of the lungs. The goal is to develop better imaging that does not use radiation.
Cough-Generated Aerosols of NTM in Cystic Fibrosis
Cystic FibrosisNon-tuberculous mycobacteria (NTM) are opportunistic pathogens normally found in soil and water that are being cultured from Cystic Fibrosis (CF) airways at an increasing frequency. They have been demonstrated to cause clinically significant lung disease in some cases and the transmission of NTM, from person to person has been proposed. There are currently no standardized guidelines for isolation of those colonized or infected with NTM. The investigators will measure particle droplet size from patients with CF who have positive sputum cultures for NTM with the hypothesis that they will be in a range that can spread infection.
An Ocular Safety Study of Ivacaftor-Treated Pediatric Patients 11 Years of Age or Younger With Cystic...
Cystic FibrosisThis study is designed to evaluate the risk of cataracts (lens opacities) and describe the best corrected distance vision (with glasses/contacts for those who wear them) of pediatric patients with Cystic Fibrosis who are 11 years of age or younger at the time of ivacaftor treatment initiation and are receiving or planning to receive commercially-available ivacaftor in the US.
Cystic Fibrosis Related Bone Disease: the Role of CFTR
Cystic Fibrosis Related Bone DiseaseThe purpose of this study is to determine whether ivacaftor, a recently FDA-approved CFTR potentiator, improves bone micro-architecture and strength in patients with cystic fibrosis with at least one G551D CFTR mutation.
Prevention of CF Exacerbation in Childhood: PREVEC Study
Cystic FibrosisChildren5 morePulmonary exacerbations of CF are an important cause for the experienced disability of patients, respiratory symptoms, and decreases in lungfunction, which require antibiotic therapy at home or in the hospital. Therefore, prevention of exacerbations in CF is important. The aim of this study was to assess the predictive properties of inflammatory markers in exhaled breath for pulmonary exacerbations in children with CF. In addition the reliability of home monitor assessments of symptoms and lungfunction was investigated.
Bronchial Inflammation of Small Airways in Patients With Cystic Fibrosis
Cystic FibrosisIn the planned study, 60 patients with mild cystic fibrosis (CF) with and without the involvement of small airways (small airway disease - SAD) are to be compared with a historical control group matched in age and gender. During the first study visit subjects are asked to perform a pulmonary function test (spirometry, body plethysmography with helium, determination of "Trapped Air") and exhaled nitric oxide (eNO) and exhaled carbon monoxide (eCO) measurements will be done in exhaled air. In addition, a blood sample is drawn to describe inflammatory status. Sputum is induced as well. During the second study visit, a non-specific bronchial provocation test(methacholine PD20 FEV1) is performed. The aim of the study is to get a characterization of the bronchial and systemic inflammation (IL-1ß, IL-6, IL-8, IL-17, TNF-α, NFKB, and recognition structures like TLR2 and TLR4) in CF patients with and without the involvement of the small airways, which may point to new treatment strategies.
Fecal Calprotectin in Cystic Fibrosis
Cystic FibrosisElevated fecal calprotectin is a biomarker for intestinal inflammation in cystic fibrosis
Cystic Fibrosis (CF) Flow Rates Study
Cystic FibrosisWe wish to measure the inspiratory flow and volumes generated by the subjects inhaling from a spirometer with a high resistance dry powder inhaler in series in subjects with cystic fibrosis.
The Microvascular Complications Study
Cystic Fibrosis Related DiabetesOur general aim is to determine the prevalence of diabetic microvascular complications in CFRD patients with and without fasting hyperglycemia, and to explore whether the presence of these complications is related to diabetes or CF factors. This cross-sectional study will provide pilot data for a longitudinal study of diabetes complications in CF.
Non-Invasive Biomarkers in Cystic Fibrosis
Cystic FibrosisBackground Chronic airway inflammation is present in cystic fibrosis. Non-invasive inflammometry may be useful in disease management. Objective We studied 1) the ability of fractional exhaled nitric oxide and inflammatory markers (acidity, nitrite, nitrate, hydrogen peroxide, 8-isoprostane, interferon-γ, tumor necrosis factor-α, interleukin-2,-4,-5,-10) in exhaled breath condensate, to discriminate between cystic fibrosis and control children, and, 2) the relationship of biomarkers with control and severity of cystic fibrosis. Methods In 98 children (48 cystic fibrosis / 50 controls), condensate was collected using a glass condenser. Exhaled nitric oxide was measured using the NIOX®.