Leukemia - Blood cancer | Medicine and Health

Leukemia ? Blood cancer

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Blood cancer, leukemia? is one of the types of cancer consists in the tissues where responsible for the production of blood cells, which include bone marrow (Bone marrow) and the lymphatic system (Lymphatic system). Begins this type of cancer Baltkon, usually in white blood cells.

White blood cells have the ability to fend off and fight various infections and pollution. Grow these cells, in general, are very sound and is divided according to the needs of the body. However, in case of injury, leukemia (leukemia), bone marrow produces the body's very large amount of abnormal white blood cells (non-normal / abnormal), which can not carry out its functions as it should.

And cancer of the blood (leukemia) is not a disease prevalent in children only. Flawhitad blood (leukemia), four major classes and a wide variety of secondary items, only part of it is widespread in children.

That the receiving person's notification for diagnosis of his disease, leukemia (leukemia) may raise feelings of anxiety and fear extreme, in what could be the task of treating cancer of the blood (leukemia) complex and complicated, according to the type of blood cancer (leukemia), and depending on other factors, many different. However, there are a variety of methods and resources that will help the patient face of leukemia.

Doctors classify leukemia, usually, in two ways:

1. According to the pace of progress:

The first classification is based on the pace of progress of the disease.

Acute leukemia / dangerous ? in acute leukemia, blood cells, abnormal cells are primitive blood undeveloped stubs (Blast). These cells are unable to do its job, and they tend to divide at a rapid pace, so the disease is aggravated rapidly. And requires treatment of acute leukemia strong and tight, it should start immediately.

Chronic leukemia (Chronic Leukemia) ? arises from this type of leukemia cells in adult blood (advanced). These cells divide and multiply, accumulate, or, more slowly and have a normal ability to work, throughout the period of time certain. In some varieties of chronic leukemia do not show symptoms of a particular disease can remain hidden and undiagnosed for a few years.

2. By type of infected cells:

The second classification is based on the type of blood cell affected.

Lymphocytic leukemia (Lymphocytic Leukemia) ? attacking this type of leukemia lymphocytes, responsible for the production of lymphatic tissue. This is a complex tissue in the central immune system is present in many organs of the body, including organs glands / lymph nodes (Lymph nodes), spleen (Spleen) and tonsils (Tonsils).

Alabiad myelogenous (Myelogenous Leukemia) ? attacking this type myeloid cells (Marrow cells) located in the spinal cord. These cells include cells that are supposed to evolve in the future to the red blood cells, white blood cells and cells responsible for the production of blood platelets (Thrombocyte / Platelet).

Main kinds:

Types of leukemia (leukemia) are:

????Myelogenous leukemia (myeloid) acute (Acute Myelogenous Leukemia ? AML) ? is the most common type of leukemia (blood cancer) prevalent. The disease in boys and in adults. Is called, also, "leukemia, acute lymphatic" (Acute nonlymphocytic leukemia).

????Acute lymphocytic leukemia (or: acute lymphocytic leukemia) (Acute Lymphocytic Leukemia-ALL) ? This is the type most prevalent in young children. He is responsible for 75% of cases of leukemia in children.

????Lymphatic leukemia chronic (or: lymphocytic leukemia chronic) (Chronic Lymphocytic Leukemia ? CLL) ? despite the fact that this type is very widespread and appears in adults, mainly, but the patient was able to enjoy feeling good for several years without the need for any treatment. It does not appear in children at all, almost.

????Myelogenous leukemia (myeloid), chronic (Chronic Myelocytic Leukemia-CML) ? This type of leukemia (leukemia), mainly in adults. Appearance is due to an imbalance in chromosome (chromosome) Job Besbga Philadelphia (Philadelphia Chromosome), responsible for the events of mutation (Mutation) gene in hereditary BCR ABL.

This gene produces a protein called improper tyrosine kinase (Tyrosine kinase) and the scientists and doctors believe that he is the one who can be cells of leukemia (blood cancer) of the evolution and reproduction. The patient is suffering with this type of blood cancer (leukemia) of the symptoms a few, have appeared already, over a period might take months or even years, before the start of the stage where the disease cells grow and multiply very quickly.
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Defects in other chronic lymphoid cells:

As in CML, this group of diseases caused the emergence of chronic leukemia (Chronic leukemia), through production, excessive or scarce, the cell lymphoma. These defects in the chronic lymphoid cells include: myeloid dysplasia syndrome (myelodysplastic syndrome), reproductive myeloid disorder (Myeloproliferative disorder), the large number of red blood cells the initial (Polycythemia vera) and myeloid fibrosis (Myelofibrosis). Group medical cases this could lead, eventually, to the emergence of leukemia in the spinal cord.

There are other types of leukemia, a rare appearance, including bleaching the hair cells (Hairy cells leukemia) and chronic myelogenous leukemia Wahidi (Chronic myelomonocytic leukemia).

Etiology is not clear:

Scientists do not know, yet, what are the real causes of disease, leukemia (blood cancer). But, it seems that generates and develops as a result of several factors and meeting a variety of genetic and environmental factors, together.

Disease begins acute leukemia in white blood cell and one or a small group of cells that have lost DNA sequence skim oxygen (DNA) ? (Deoxyribonucleic acid ? DNA) or that its sequence is defective (Defective). These cells remain undeveloped, but they are able to reproduce. Because it is not sophisticated enough, and dead cells, as happens to the sound, they accumulate and impede the proper working of the vital members of the body. At the end of the day, these cells abort the process of cell production and proper recovery.

Attacking the disease chronic leukemia blood cells the most sophisticated. These cells multiply and accumulate more slowly, so the progress of the disease is slower, too, but it could be fatal. Specialists still do not know exactly the real reasons for the occurrence of this process.

On balance, shall be established a lack of healthy blood cells and health gets pollution, excessive bleeding and anemia (Anemia). The presence of a very large number of white blood cells that would affect the function of bone marrow tissue (Bone marrow tissue) and penetration to other organs. When such a situation lead to death, it is usually a result of blood loss is severe or as a result of infection.

The following factors may increase the risk of some types of leukemia:

Treatment of cancer ? people who brought in the past for certain types of methods of chemical treatment (Chemotherapy) or radiation treatment (Radiotherapy) to address other types of cancer are susceptible to certain types of leukemia, after many years of treatment.

Genetics ? It seems that certain genetic deviations that would affect the onset of leukemia. Have discovered that certain genetic diseases, such as Down syndrome (Down syndrome), increases the risk of leukemia.

Exposure to radiation or to certain chemicals ? people who were exposed to very high levels of radiation, such as survivors of the atomic blast or nuclear reactor accident, are, in large part, to infection leukemia. Also, exposure to certain types of chemicals, such as gasoline in the fuel lead-free and smoke tobacco, also used in certain chemical industries, would also increase the risk of certain types of leukemia.

Source: http://www.konozgroup.com/?p=771

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