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Leukemia
白血病
Leukemia is blood cancer in which malignant white blood cells multiply inside your body's bone marrow.
白血病是一种血癌，恶性白细胞在你的骨髓中增殖。
Usually, leukemia involves the production of abnormal white blood cells, the cells responsible for fighting infection.
通常，白血病涉及异常白细胞的产生，这种细胞负责对抗感染。
However, the abnormal cells in leukemia did not function in the same way as normal white blood cells.
然而，白血病中的异常细胞与正常白细胞的功能不同。
The leukemia cells continue to grow and divide.
白血病细胞继续生长和分裂。
Eventually crowding out the normal blood cells.
最终排挤出正常的血细胞。
The end result is that it becomes difficult for the body to fight infections, control bleeding and transport oxygen.
最终结果是身体变得难以抵抗感染、控制出血和输送氧气。
What causes leukemia?
是什么导致白血病？
Is leukemia hereditary?
白血病是遗传性的吗？
The exact cause of leukemia is not known, but it is thought to involve a combination of genetic and environmental factors.
白血病的确切原因尚不清楚，但人们认为它涉及遗传和环境因素的组合。
Leukemia cells have a quite mutation in their DNA that cause them to grow abnormally and lose functions of typical white blood cells.
白血病细胞的DNA有相当大的突变，这会导致它们异常生长，失去典型白细胞的功能。
It is not clear what causes this mutation to occur.
目前还不清楚是什么原因导致了这种突变的发生。
One type of change in the cell's DNA that is common in leukemia is known as chromosome translocation.
白血病中常见的一种细胞DNA变化称为染色体易位。
In this process, a portion of one chromosome breaks off and attaches to a different chromosome.
在这个过程中，一条染色体的一部分脱落并附着在另一条染色体上。
Most cases of leukemia are not believed to be hereditary, but certain genetic mutations and conditions can be passed along to offspring that increase the chances of developing leukemia.
大多数白血病病例被认为不是遗传性的，但某些基因突变和疾病可以遗传给后代，从而增加患白血病的机会。
Treatments
治疗
Treatment for your leukemia depends on many factors.
白血病的治疗取决于许多因素。
Your doctor determines your leukemia treatment based on your age and overall health, the type of leukemia you have and whether it has spread to other parts of your body, including the central nervous system.
你的医生根据你的年龄和整体健康状况，你患有的白血病类型，以及它是否已经扩散到你身体的其他部位，包括中枢神经系统，来决定你的白血病治疗方案。
Common treatment used to fight leukemia includes stem cells transplant, chemotherapy, and radiation therapy.
对抗白血病的常用治疗方法包括干细胞移植、化疗和放射治疗。
