Categories

A sample text widget

Etiam pulvinar consectetur dolor sed malesuada. Ut convallis euismod dolor nec pretium. Nunc ut tristique massa.

Nam sodales mi vitae dolor ullamcorper et vulputate enim accumsan. Morbi orci magna, tincidunt vitae molestie nec, molestie at mi. Nulla nulla lorem, suscipit in posuere in, interdum non magna.

Introduction to Leukemia and what causes it ?

Leukemia is cancer that starts in the tissue that forms blood. These deranged, immature cells accumulate in the blood and within organs of the body. They are not able to carry out the normal functions of blood cells.
White blood cells (leukocytes) are part of the immune system and help fight a variety of infections. They also help in the healing of wounds, cuts, and sores.
In a person with leukemia, the bone marrow makes abnormal white blood cells. The abnormal cells are leukemia cells. Unlike normal blood cells, leukemia cells don’t die when they should. They may crowd out normal white blood cells, red blood cells, and platelets. This makes it hard for normal blood cells to do their work.
As leukemia progresses, the cancer interferes with the body’s production of other types of blood cells, including red blood cells and platelets. This results in anemia (low numbers of red cells) and bleeding problems, in addition to the increased risk of infection caused by white cell abnormalities.
As a group, leukemias account for about 25% of all childhood cancers and affect about 2,200 American young people each year.

Causes of Leukemia

Experts say that different leukemias have different causes. The following are either known causes, or strongly suspected causes:
– Artificial ionizing radiation.
– Viruses – HTLV-1 (human T-lymphotropic virus) and HIV (human immunodeficiency virus).
– Benzene and some petrochemicals.
– Alkylating chemotherapy agents used in previous cancers.
– Maternal fetal transmission (rare).
– Hair dyes.
– Genetic predisposition .
– Down syndrome.
– Electromagnetic energy.
– Chemicals. Some types of chemicals are known to be carcinogens (pronounced car-SIN-o-genz). A carcinogen is anything that can cause cancer. Chemicals can cause cancer by damaging cells and the substances within them.
– Myelodysplastic syndrome — People with this blood disease are at increased risk of developing acute myeloid leukemia.

Leave a Reply

You can use these HTML tags

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>