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Cancer: a Terminal Disease - Assignment Example

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In the paper “Cancer: a Terminal Disease” the author analyzes a terminal disease of mankind, which is responsible for the death of 1 in three women and 1 in two men in the USA.  In the present scenario, cancer research is getting maximum funding from all major funding agencies…
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Cancer: a Terminal Disease
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Download file to see previous pages Only visible progress is observed in the case of breast cancer even though, it is detected in the early stage (3). There are many reasons and characteristic of cancer which makes it incurables some of them are as follows:
Most of the human diseases were classified under two broad categories; 1) genetic diseases and 2) environmental diseases. In genetic diseases, mutation or loss of function in any of the vital genes leads to disease condition and they are generally cured by artificial supplementation of a vital component. For example, in sickle cell anemia where a patient having mutation in both copies of the hemoglobin gene leads to sickle-shaped RBC. The only permanent cure for this disease is bone marrow transplant and gene therapy, both of the techniques are in their nascent stage. While diseases like infection or normal injuries are environmental influence diseases and there are several treatments are available.
In the case of cancer, both environmental as well as genetic factors play an important role and there are always arguments for a more pronounced effect. For example, in the case of genetic factors, there are many identified oncogenes (cancer-causing genes) like RAS, EGFR, Myc, etc. In normal cells, they are part of cell cycle regulation (proto-oncogenes) but once they get mutated they interfere with the normal cell cycle and lead to uncontrolled growth of cancer. While environmental influence comes in the form of carcinogens (cancer-causing chemicals). Tobacco, many organic solvents and chemicals, Ionizing radiation and UV radiation, etc are considered to be the most influential agents in causing cancer. Similarly, many epidemiological studies indicate lifestyle, food habits and day to day routine also may lead to cancer. In spite of the huge amount of data indicating the role of the above mention factors in cancer, there is not a single case where any of these factors played a role in isolation. ...Download file to see next pages Read More
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