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We list hundreds of Clinical Trials about "Determination of Variances in Exhaled Nitric Oxide Output in Normal Healthy Male Volunteers Consuming High and Low Nitrate/Nitrite Diets" on BioPortfolio. We draw our references from global clinical trials data listed on ClinicalTrials.gov and refresh our database daily.
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The purpose of this study is to determine fractional exhaled nitric oxide (FeNO) level in healthy subjects among Thai populations.
This study will determine whether and how nitrites and nitrates in the diet affect the level of nitric oxide gas that is breathed out in air. Nitric oxide is involved in many bodily processes, such as immune function, nerve signal transmission, inflammation, and dilation of blood vessels and bronchial tubes (tubes that branch out from the trachea into the lungs). Healthy male volunteers age 18 years or older who have not smoked for at least 5 years may be eligible for this st...
The purpose of the study is to determine the role of nitric oxide (NO) in asthma. We determine the effect of promoter polymorphisms in the gene for the NO producing enzyme, nitric oxide synthase (NOS2), on exhaled NO in healthy African Americans and Caucasians. We compare exhaled NO levels between African Americans and Caucasians. Information on race or ethnicity, serum samples, blood pressure, exhaled breath condensate and health questionnaires will be collected.
Previous studies have demonstrated that exhaled nitric oxide can be useful to monitor the efficacy of anti-inflammatory treatment as well as to predict a risk of asthma relapse in asthmatic patients. The aim of the present study is to evaluate the time course of exhaled nitric oxide in mild asthmatic patients, stopping regular treatment with inhaled corticosteroids, if it is possible, in relationship with symptoms and lung function.
Evaluate the additive role of zileuton 600mg qid to clinically stable asthmatics on Advair 250/50 bid. Since asthma is an endogenous inflammatory disease there usually is increased total exhaled, bronchial and alveolar nitric oxide which are markers of eosinophilic driven pathways of inflammation. The addition of zileuton which is a leukotriene synthesis inhibitor by itself or together with inhaled corticosteroids should reduce nitric oxide gas exchange.
The purpose of the study is to determine the role of nitric oxide (NO) in asthma and to characterize the symptoms associated with inhaled endotoxin (lipopolysaccharide [LPS]) in normal subjects. In this study, we will determine the effect of inhaled endotoxin on exhaled NO in healthy African Americans, with and without NOS2 promoter polymorphisms. The protocol described in this submission will involve the use of NIH Clinical Center Reference Endotoxin which has been approved...
This study will investigate the importance of exhaled nitric oxide measurements in subjects with asthma age 65 and older. This group of patients has been ignored in most previous asthma studies.
This study is a non-randomized, Phase 2 clinical trial designed to measure the cerebral blood flow (CBF) response to inhaled nitric oxide in acute ischemic stroke patients and healthy subjects. The monitoring is a 35 minute session during which cerebral hemodynamics will be monitored with both diffuse correlation spectroscopy (DCS) and transcranial doppler ultrasonography (TCD) while blood pressure, heart rate, cardiac output, respiratory rate, end oxygen saturation, and inhale...
This trial will test if adding nitric oxide (NO) gas to the cardiopulmonary bypass (CPB) circuit in infants undergoing an arterial switch operation (ASO) for Transposition of the Great Arteries (TGA) changes the incidence of major postoperative adverse events (AEs). Major postoperative AEs include cardiac arrest, emergency chest opening, use of ECMO (machine that acts as an artificial heart and lung during surgery), and death. Participants will be randomised to receive oxygen...
The purpose of this study is to determine whether an asthma treatment strategy that measures exhaled nitric oxide (eNO) to indicate disease progression is more effective in treating asthma symptoms when combined with existing asthma treatment guidelines than treatment using the guidelines alone.
This pilot study will measure the baseline levels and the intra- and inter-subject variability of exhaled (alveolar and bronchial) and nasal NO in smoking subjects with mild and moderate COPD on or off steroid treatment, smoking healthy volunteers and non-smoking mild asthmatics off steroids, using multiple exhalation flow rates. In addition, exploratory markers of iNOS activity (eg. 3-nitrotyrosine, nitrite, nitrate and 3-nitro-4-hydoxyphenylacetic acid) in blood, sputum, uri...
The aim of the research is to evaluate the clinical value of fractional exhaled nitric oxide(FeNO) ,impulse oscillometry(IOS) and mid-expiratory flow (MEF) in patients with cough variant asthma.
The purpose of this study is to determine mean or median of fractional exhaled nitric oxide (FeNO) in Thai atopic asthmatic children that divided into subgroups due to asthma exacerbation according to the global initiative for asthma guideline.
Title: The acute effect of water pipe smoking on exhaled nitric oxide (eNO) and exhaled breath condensate (EBC) pulmonary function tests in healthy volunteers Objectives: To evaluate the acute effect of one cession of water pipe smoking on airway inflammation as assessed by exhaled nitric oxide (eNO) and exhaled breath condensate (EBC) in healthy volunteers. Design: Prospective study evaluating these parameters before and after 30 minutes of water pipe smoking . The c...
Collection of quantitative data to demonstrate the accuracy (bias) and precision (repeatability) of the Apieron INSIGHT(tm) eNO Breath System as compared to the FDA cleared NIOX eNO Breath System when testing is performed by asthma patients.
The primary aim of this study is to exploit a difference between COPD patients, chronic smokers without COPD and healthy non-smoking subjects. This will help to assess the utility of inflammatory and oxidative markers in exhaled air and sputum and to compare them with the lung function, clinical parameters and computerised tomography (CT).
The purpose of this study is to determine if exhaled nitric oxide (eNO) levels will be increased in pediatric patients with uncontrolled asthma as determined by the Asthma Control Test (ACT). During the study the investigators will also examine if the combination of eNO and ACT will better predict asthma control that either tool alone when compared to a medical provider's assessment of the patient's asthma control.
The purpose of the study is to evaluate of the relationships between fractionated exhaled nitric oxide, disease activity, and symptom severity in patients with eosinophilic esophagitis compared to those without eosinophilic esophagitis.
Background 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 bio...
The purpose of this study is to evaluate the immunomodulatory effect of treatment of allergic rhinitis symptoms with specific immunotherapy by measurement of pulmonary inflammatory markers, and among others, exhaled nitric oxide.
This blinded, placebo-controlled study will administer inhaled nitric oxide to patients undergoing liver transplantation. The purpose of the study is to test if inhaled nitric oxide prevents liver injury associated with the restoration of blood flow. The premise of the current study is provided by previous studies which document a protective effect of inhaled nitric oxide in this clinical setting.
This study is being conducted to validate various biomarkers in patients with RA with varying levels of disease severity. Subjects with a diagnosis of rheumatoid arthritis (RA) will be included as controls. The sudy will measure the baseline levels and the intra- and inter-subject variability of exhaled nitric oxide (NO) in patients with inactive/mild and moderate/severe RA on stable therapy or during a course glucocorticoids. In addition exhaled NO levels will be correlated...
The purpose of this study is to determine whether a low exhaled nitric oxide reading (
To examine the post-dose changes in exhaled Nitric Oxide (eNO) following treatment with inhaled Advair in subjects with chronic but stable asthma as defined in Global Initiative for Asthma (GINA) guidelines.
A minimum of 100 patients will be enrolled in the study to demonstrate which diagnostic treatment (oxygen or nitric oxide) is most capable of identifying patients with a reactive pulmonary vascular bed. Each patient will be given all three treatment regimen, nitric oxide, oxygen, and the comparison treatment (either nitric oxide or oxygen), with a wash out period of 10 minutes between each dose. Patients will be randomized at the time of enrollment to determine which comparis...