Multiple Causation Theory of Leukemia
Leukemia is a malignant disease of the bone marrow and blood. It is characterized by the uncontrolled growth of blood cells. The term leukemia has a Latin derivation. Leuko means white and heme is blood. Therefore the word leukemia literally means white blood. The common types of leukemia are divided into four major categories: myelogenous and lymphocytic, which can then be divided into acute or chronic. Thus, the four major types of leukemia are acute or chronic myelogenous leukemia and acute or chronic lymphocytic leukemia. Acute leukemia involves the most primitive types of leukemia cells. It is a rapidly progressing disease that results in the accumulation of immature cells in the marrow and blood that do not function. In most cases, the marrow can no longer produce enough normal red and white blood cells and platelets. This class of cancer leads to an overproduction of blood cells that have similar characteristics, which mean that they are clones. Cloned cells share two common features that lead to the symptoms of leukemia. The first is that the cells divide without control and fail to respond to the signals that tell them to stop. The second is that these cells have a longer life than normal cells and gradually acc
In this category, we look at what people may have been exposed to in their home and occupational environments. It is very hard for these patients to return to their normal roles in society because only 65 percent of the people diagnosed go into complete remission. Some diseases, such as myeloma and chronic lymphocytic leukemia, are almost never seen in young people (www. There would be equal proportions are acute leukemia and chronic types (www. Chronic leukemia seems to progresses more slowly and permits greater numbers of more mature functional cells to be made. But with treatment and a strong support system, patient's ability to cope with this disease is very high. Some years ago it was reported that children who had been exposed to medical X-rays before birth were more likely to develop leukemia. Now that I have presented the background for the disease itself, it's time to look at it from the "Multiple Causation Theory. Before I discuss these categories, I must first present the information that the theory is concerned with. Over the last 20 years, death rates for leukemia have fallen 21 percent for U. In the first stages, the patient is beginning their treatment in the hospital setting.
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