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More on asthma ... Why is Asthma on the Rise? Although several theories exist about why asthma rates have risen during the last two decades, there probably is no simple answer, says Calman Prussin, M.D., head of the clinical allergy and immunology unit at NIAID.
One theory is that people today, especially in developed countries, are spending more time indoors, Dr. Prussin says. We are therefore exposed to more indoor allergens, such as dust mite allergen, that cause asthma. 'Our houses are now hermetically sealed to save heating and cooling energy,' he notes, 'and unfortunately this causes more indoor allergen exposure.'
Another reason may be that people today live in cleaner, more sanitary conditions than they did before the industrial revolution, relatively free of disease-causing viruses and bacteria, he says. This clean living affects our immune system. The immune system's defensive white blood cells, called T cells, have two basic 'settings,' he explains. Th1 cells fight infectious viruses and bacteria. Th2 cells fight parasites but are also involved in allergic reactions.
'We are exposed to fewer viruses and bacteria than people were 100 years ago, so perhaps our immune systems have not learned to make Th1 cells as well,' Dr. Prussin says. 'That means we have a greater proportion of Th2 cells in our bodies, which might lead to more allergies and asthma.'
Other theories point to increased levels of air pollutants, a decline in the amount of exercise people get, or rising obesity as factors in the increase of asthma. - NIAID
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NIHASTHMA 8.4 10-28-B (Page SC)
... Lung, and Blood InstituteNIH Publication No ... nih.gov/nhlbi/nhlbi.htm.Claude Lenfant, M.D., DirectorNational Heart, Lung, and Blood InstituteChair, National Asthma ...
National Heart, Lung, and Blood Institute (NHLBI)
NHLBI Home Page. This site contains information for professionals and the general public about heart and vascular diseases, lung diseases, blood diseases and resources, and sleep disorders. ... Search for Clinical Trials at NIH in Bethesda, MD ... NIH Offers New Resources to Better Understand Sleep, June 21, 2004 ...
Asthma - National Institutes of Health (NIH) Asthma - Health Information from National Institutes of Health (NIH) ... Medline Plus. NIH Institute and Center Resources ... Controlling Your Asthma. Your Asthma Can Be Controlled: Expect Nothing Less ...
AARC Supports NIHAsthma Conference
AARC Supports NIHAsthma Conference. June 20, 2000. The AARC recently signed on as a sponsor to an asthma conference organized by the National Institutes of Health and other key health groups.
Asthma Treatment Guidelines Palm Download Page
This page contains a free downloadable succinct and practical point-of-care reference program for Palm OS devices on the diagnosis and management of asthma. It is designed for use by health care ... Put asthma treatment guidelines in the palm of your hand ... Use of this program does not constitute endorsement of any commercial software products by the NHLBI or NIH ...
NIH Guide: ASTHMA AND ALLERGIC DISEASES RESEARCH CENTERS
Applications are to be designed around a central scientific theme demonstrating relevance to one or more of these diseases. A minimum of three biomedical research projects must be proposed. ... ASTHMA AND ALLERGIC DISEASES RESEARCH CENTERS Release Date: April 3, 2000 RFA: AI-00-012 ... Institutes of Health (NIH), invite applications for Asthma and Allergic Diseases Research ...
AIM | NIHAsthma Guidelines and Standards
Search Our Site: Email this page to a friend. NIHAsthma Guidelines and Standards. Airway Inflammation Plays a Central Role in Asthma and its Management. Asthma is a chronic inflammatory disorder of the airways.
Department of Pulmonary Medicine, Camino Medical Group, Sunnyvale California
... stm. NIHAsthma Tutorial -- http://www.nlm.nih.gov/medlineplus/tutorials/asthma.html. Asthma Triggers ... about Controlling Asthma -- http://www.nhlbi.nih.gov/health/public/lung/asthma ...
NIEHS Asthma Research: Home Page
Welcome to the Asthma Research at NIEHS web site. We hope to provide a variety of resources for those suffering from asthma and allergies. Cick on any of the subheadings below to find information on: RESEARCH STUDIES ... For further information about asthma, contact: webcenter@niehs.nih.gov. National Institute of Environmental Health ...
NIH Guide: ASTHMA CLINICAL RESEARCH NETWORK
... Full Text HL-93-11 ASTHMA CLINICAL RESEARCH NETWORK NIH GUIDE, Volume 21, Number 45 ... 34 Keywords: Asthma Treatment, Medical+ Data Management/Analysis+ National Heart, Lung, and ...
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