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The aim of the study is to test the hypothesis that the allergic airway inflammation in asthmatic patients will be enhanced after exposure to ultrafine particles (UFP). In order to test this in a controlled study, the researchers combine controlled exposure to carbon black model UFP with the well-established model of a segmental allergen challenge, which allows the researchers to safely induce circumscript allergic inflammation in the lung in mild asthmatics. The effect of the UFP on allergic inflammation will be controlled by an inhalation of clean air in a randomized, double-blind, crossover design.
Allocation: Randomized, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Basic Science
Bronchoscopy, Exposure to ultrafine carbon black particles
Fraunhofer-Institut für Toxikologie und Experimentelle Medizin
Fraunhofer-Institute of Toxicology and Experimental Medicine
Published on BioPortfolio: 2014-08-27T03:36:15-0400
Brief Summary Short description of the protocol intended for the lay public. Include a brief statement of the study hypothesis. (Limit: 5000 characters) Example: The purpose of this study...
Ambient air pollution is a complex mixture of gaseous pollutants and particulate matter (PM). PM has a recognized important role in human health. There is a strong scientific consensus on ...
The study is designed to elucidate whether carbon black suspension endoscopic tattoo enhances visibility of lymph nodes or tumor tissue on dissection of colorectal surgical specimen, there...
E-cigarettes deliver nicotine by creating an aerosol of ultrafine particles. Many questions remain about the size and composition and especially about the potential toxicity of these parti...
Purpose: To determine whether exposure to levels of fine particles that are close to the current standard will cause cardiovascular changes in healthy individuals.
Little is known regarding the impact of ambient ultrafine particles (
There is growing evidence that exposure to ultrafine particles (UFP; particles smaller than [Formula: see text]) may play an underexplored role in the etiology of several illnesses, including cardiova...
Recent studies demonstrate that Black Carbon (BC) pollution in economically developing megacities remain higher than the values, which the World Health Organization considers to be safe. Despite the s...
Ultrafine particles (UFP, particulate matter PM
Due to similar aerodynamic and micro-nano sized properties between airborne particles and synthetic nanoparticles, a large number of studies have been conducted using carbon-based particles, such as c...
Asthma attacks caused, triggered, or exacerbated by OCCUPATIONAL EXPOSURE.
A dark powdery deposit of unburned fuel residues, composed mainly of amorphous CARBON and some HYDROCARBONS, that accumulates in chimneys, automobile mufflers and other surfaces exposed to smoke. It is the product of incomplete combustion of carbon-rich organic fuels in low oxygen conditions. It is sometimes called lampblack or carbon black and is used in INK, in rubber tires, and to prepare CARBON NANOTUBES.
Endoscopic examination, therapy or surgery of the bronchi.
The interactions of particles responsible for their scattering and transformations (decays and reactions). Because of interactions, an isolated particle may decay into other particles. Two particles passing near each other may transform, perhaps into the same particles but with changed momenta (elastic scattering) or into other particles (inelastic scattering). Interactions fall into three groups: strong, electromagnetic, and weak. (From McGraw-Hill Encyclopedia of Science & Technology, 7th ed)
Unsaturated derivatives of the ESTRANES with methyl groups at carbon-13, with no carbon at carbon-10, and with no more than one carbon at carbon-17. They must contain one or more double bonds.
Pulmonary relating to or associated with the lungs eg Asthma, chronic bronchitis, emphysema, COPD, Cystic Fibrosis, Influenza, Lung Cancer, Pneumonia, Pulmonary Arterial Hypertension, Sleep Disorders etc Follow and track Lung Cancer News ...
Of all the types of Dementia, Alzheimer's disease is the most common, affecting around 465,000 people in the UK. Neurons in the brain die, becuase 'plaques' and 'tangles' (mis-folded proteins) form in the brain. People with Al...
Asthma is caused by inflammation of small tubes, called bronchi, which carry air in and out of the lungs. If you have asthma, the bronchi will be inflamed and more sensitive than normal. When you come into contact with something that irritates your...