Air, Breathing and the Environment
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Air and Breathing
Topics from the Book

The Way of Breath
Atmosphere
Air Quality
Cars and Trucks
Car Exhaust Pollutants
Air Pollution
Climate Change
Airborne Diseases
Air Quality Inside Buildings
Environment
Airborne Allergy
Asthma
Airborne Fungi and Disease
Airborne Viruses
Fibrosis & Sarcoidosis
Food and Lung Disease
Alpha Nutrition Program

 

 

 

YINYANG

Sarcoidosis

Sarcoidosis is a multisystem immune-mediated disease. Airborne sources of antigens interact with immune defenses to create the granulomatous immune response in tissues. Granulomas are one form of delayed hypersensitivity reactions in tissues that take weeks or months to form and leave permanent scars. Some chronic infections such as tuberculosis and fungal infections produce granulomas. Sarcoid granulomas appear in the lungs and the lymph nodes that receive antigens from the lungs. Granulomas also appear in the skin and other organs.

Occupational clusters have been reported in health-care workers, US Navy enlistees, teachers, automobile manufacturers, retail industry workers and firefighters. Granulomatous diseases have been associated with exposures to organic dusts, metals, molds, chemical dust, silica, wood dust, and smoke. Izbicki et al  followed 26 fire fighters who developed sarcoidosis after exposure to World Trade Center dust during the collapse and rescue/recovery efforts. A large number of exposed citizens developed upper respiratory symptoms, especially chronic cough and increased asthma attacks from inflammation in the upper and lower respiratory tracts but only a small number developed granulomatous disease.

More than 400 substances were found in samples of WTC dust in four main categories: (1) particulate matter (calcium carbonate and silica) and fibers (chrysotile asbestos, fibrous glass, gypsum); (2) organic chemical pollutants, including polycyclic aromatic hydrocarbons, other hydrocarbons (naphthalene, fluorine, polychlorinated biphenyl, dibenzo-p-dioxins, and diphenyl ethers), benzene, and freon; (3) gases, such as carbon monoxide, hydrogen sulfide, combustion byproducts from WTC fires that burned until mid-December 2001, and diesel exhaust fumes from the vehicles/machinery employed during the rescue recovery effort; and (4) heavy metals. Some of these substances had already been associated with granuloma formation.

Gabriel Izbicki, Robert Chavko, Gisela I. Banauch; et al World Trade Center "Sarcoid-Like" Granulomatous Pulmonary Disease in New York City Fire Department Rescue Workers. CHEST.  2007;131(5):1414-1423. 

 

Discussions of Environmental Science and Human Ecology were developed by Environmed Research Inc. Sechelt, B.C. Canada. Online Topics were developed from the book, Air and Breathing. This book helps you understand air quality issues, normal breathing and the causes of breathing disorders. You will find detailed information about the atmosphere, air pollution, climate change, airborne infection, air quality and airborne hazards at home.

Stephen J. Gislason MD. Air and Breathing. Alpha Education Books.
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Not all respiratory diseases are caused by airborne pathogens. If asthma, bronchitis and/or nose sinus congestion is chronic or attacks occur frequently in all seasons and are not related to airborne exposure, then consider delayed pattern food allergy as the cause and do diet revision using the Alpha Nutrition Program.

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