Beware of the sun
Institute researchers have found
U.S. National Environmental Health Sciences of the Institute of National Health an association between exposure to ultraviolet radiation in sunlight and the emergence of some autoimmune diseases, especially among women, according to a statement received by Al Jazeera Net from the National Institute of Health.
The researchers said that women who are subjected to high levels of ultraviolet radiation, with the incidence of infected muscle (myositis), - one of the syndromes of autoimmune diseases - more vulnerable to infection syndrome muscular skin, which weakens the muscles and cause skin rashes, a distinctive, rather than inflammation muscle multiple that does not cause skin rashes.
Although the study did not show a direct causal relationship between exposure to ultraviolet radiation, and this type of autoimmune diseases, in particular, it stresses the link levels of UV radiation the frequency of muscle skin syndrome, according to researchers at the conclusion of the previous research.
This study was recently published journal "Arthritis & Rheumatism" niche, is the first study to find a possible association between UV radiation and autoimmune diseases of women.
Differences inherent quality
The researchers argue that women are more vulnerable than men to infection from many types of autoimmune diseases, but the reasons behind this are not clear for them so far.
In the time that remains, which causes autoimmune diseases are unknown, experts suspected that it arose as a result of exposure to environmental factors in people genetically prepared to infection, in addition to UV radiation among other factors, according to this study
"They found that the association of exposure to ultraviolet radiation skin inflammation muscle was limited to women without men, perhaps because of - their view - for the inherent differences between the sexes in response to ultraviolet radiation, play a role in the emergence of certain immune diseases.
The researchers showed that female mice suffered more inflamed skin after exposure to UV radiation as compared to males, these effects may be related to the results of new muscle cutaneous syndrome.
And designed the study to determine whether there was a relationship between the level of exposure to ultraviolet light and the beginning of the disease, and the type of muscle inflammation and the type of the resulting self-antibodies.
Researchers with the cooperation of several centers for the treatment of muscular inflammation, as it dealt with 380 patients diagnostic Balalthabiyn muscular cutaneous and muscular multiple antibodies to determine the self-arising therefrom. The people with autoimmune diseases secrete antibodies, according to a variety of self-condition.
One of the antibodies specifically associated with skin inflammation muscle called the (anti-Mi-2), previous research suggests that UV radiation levels increase protein (Mi-2), which is restricted by this antibody.
In addition to the discovery of a link the level of UV percentage of women who develop skin inflammation muscle inflammation compared to the multi-muscle, researchers also found an association between UV levels and the proportion of pregnant women for the antibody (anti-Mi-2).
The researchers suggest the need for further research to understand the possible links between UV radiation and the emergence of autoimmune diseases in women.
At the time that remains, which causes autoimmune diseases is unknown, experts suspected that it arose as a result of exposure to environmental factors in people genetically prepared to infection, in addition to UV radiation among other factors, according to this study
Publié par happy-diet lundi 19 juillet 2010