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Cancer Treatment
History
Cancer is caused by DNA damage that results in mutated genes
that begin to encode for certain proteins that control cell
division. Damage to DNA in this manner is caused by exposure to
carcinogens that are physical or chemical agents.
Cancer treatments are becoming more specialized and specific
for the type of cancer pathology as research develops.
Basically, though, there are three main types of cancer
treatment: radiotherapy, chemotherapy and surgery.
Until the 19th century cancer treatment was based primarily
upon the humor theory of four bodily fluids: phlegm, blood,
black and yellow bile. Depending on the patient's humor, cancer
treatment was comprised of blood-letting, diet and sometimes
laxatives.
Throughout the 16th and 17th centuries doctors were dissecting
more bodies for research purposes. Various doctors had striking
theories and explanations as to the cause of cancer. Some
thought that cancer was a poison and a contagious disease.
Wilhelm Fabry thought that breast cancer was caused by mammary
glands that had become clogged.
When the microscope was invented and more widely used, it was
discovered that cancer travels through the lymph system to
infect other portions of the body. Though surgical treatment
became more common, the results were not that great because of
poor hygiene and non-sterile conditions.
When hygiene was improved during the 18th century, the overall
surgical treatment statistics improved greatly. In the 19th
century Marie Curie discovered radiation and in doing so found
the first non-surgical and effective treatment of cancer.
Radiation therapy has gone on to provide some of the most
promising cancer treatment known to date. As radiation therapy
evolves, we're seeing an increase in the accuracy of radiation
therapy, including micro-level treatment of various types of
cancer.
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