Cause of disease of leukemia

Cause of disease of leukemia
The cause of disease of leukemia is more complicated, but caused by internal cause, external cause, and the result that many kinds of factors interact on each other. Clearer factor of cause of disease is mainly as follows, at present (l)Radioactive rays: U.S.A. abandoned the atomic bomb in Nagasaki and island of Japan respectively in 1945. In the survivor after the atomic bomb explodes, leukemia took place successively to a lot of people. Is it 2 after the atomic bomb explodes at first? Found every year, in the 5th year after exploding, the morbidity of leukemia reached the highest peak, still keep at higher level later. After exploding 26 years ago, that leukemia takes place is still high than ordinary people in the survivor. This is that radioactive rays can cause the most direct evidence of people's leukemia. In addition, personnel engaged in the work of radioactive rays under protecting the not good situation of the condition and patient accepting X-ray treatment for a long time, such as the strong straightforward vertebra inflammation patient, the morbidity of leukemia is several times higher than normal people too, prove the radioactive rays really has function which causes leukemia. (2)Chemical factor: Some chemicals and medicines such as two benzene anthracene, benzene Zhyuan,etc. can bring out leukemia in little white mouse, some resist leukemia medicine if LiLan Ma have such function too, thus has confirm to cause the intersection of leukemia and function chemical factor in the intersection of animal and experiment. Benzene and toluene,etc. in the mankind sure chemicals which cause leukemia. (3)Virus factor: Find a kind of little mouse leukemia and virus could cause little mouse's leukemia after infecting the new born milk mouse as far back as the fifties. So, people suspect human leukemia can also be caused by virus, but can not get the definite conclusion for a long time. Did not make the great break-through in human cause of disease of leukemia and virus until recently. (4)Inherent cause: Someone statistical analysis take place several the intersection of leukemia and situation of patient think, have existence of inherent cause it in the the same family. If in being inborn and getting foolish, too is apt to take place leukemia in some congenital genetic disease. With the twins of the ovum, leukemia takes place to one party, the chance of leukemia takes place and is up to 25% to another party. These examples all prove while leukemia have illness coming on, it is possible to exist in inherent cause. As a whole, morbidity of leukemia to give fruit one complicated multifactor function: Hereditary quality, virus, radiating, the chemical material may influence each other, eclipsed function but emergence which cause leukemia.

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