Immune System and Allergies (II)
The number of children diagnosed with allergic dermatitis in the U.S. has increased from 3% in the 60 to 10% in 90.
In Sweden, Switzerland, Germany, Denmark and Japan have also seen a sharp increase in allergic diseases.
The rise of asthma has been thoroughly documented. In the U.S. reached about 30% between 1980 and 1987. Between 1990 and 1992, the number of people in this country who reported having asthma increased from 10.4 to 12.4 million. Asthma is more common among African American children than among white children (26% more often) from 1980 to 1987, asthma deaths in the U.S. increased by 30%.
It has also increased in Australia, Canada, Britain and New Zealand. Just as asthma, in the U.S., mortality rates are higher among minorities: in the period between 1982 and 1992, blacks were three times more likely to die from asthma than whites.
The substances involved in enhancing immune system disorders are environmental toxins, both carriers such as those contained in food. Japanese scientists investigating the alarming increase in pollen allergies in this country since the 50′s, have shown that exposure to diesel exhaust exacerbates allergic responses to pollen.
French researchers found that in France between 1984 and 1992, severe food allergies have been largely caused by allergens hidden in highly processed foods.
The immune system consists of multiple groups of cells in continuous interaction, many of which are found throughout the body. This “mobile brain” not only constantly monitors all body tissues but also all the particles that affect the skin and the lining of the lungs, intestines and other mucosal surfaces. Immune system cells have the ability to distinguish self cells from non-self such as pathogens, toxins, parasites, tissue grafts and other objects that are recognized as “foreign.” Immune system cells are continually learning and memorizing, and sometimes, forgetting-what to attack and kill, what to leave alone and what to protect.
Tolerate
The immune system is, however, much more sophisticated than the seductively deep dichotomy own non-self. ” One might think, for example, that the food we eat could be identified by the immune system as “foreign” because they are substances “non-self” cells and surfaces covered with strangers. But the immune system normally does not react to the foods we eat. If it did, humans would not survive. Immune responses against certain foods are well illustrated when someone eats a small amount of food you are allergic to salivation, nausea, vomiting, diarrhea, headache and sometimes death.
The immune system of the gut, which represents most mucótico immune system learns to recognize and accept (tolerate) foods, allowing their absorption into blood and lymphatic system. He also learns to recognize pathogens and toxins ingested with food and prevents them from being absorbed in part by secreting antibodies that trap pathogens and toxins in the intestinal mucus. Once caught, it helps the immune system to attack, eat or detoxify these “invaders.” Similarly, in the lungs, the immune system learns to recognize mucótico harmless particles of foreign substances, such as house dust, as distinguished from toxic pollutants that must be immediately expelled by coughing and increased runny nose.
credit to: Richard A. Cone
Source: www.enbuenasmanos.com/articulos/muestra.asp?art=1258
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