| Home | Join | Contact Us | Privacy Policy | Login | Logout |
|
|||
Cancer: The Costs, Causes, And CuresBelow is a free term papers summary of the paper "Cancer: The Costs, Causes, And Cures." If you sign up, you can be reading the rest of this term papers in under two minutes. Registered users should login to view this term paper.
Cancer: The Costs, Causes, and Cures Cancer is a major killer of people all around the globe. We do not have a definite cure, but the amount of research done on this one disease costs on the average of $1.2 billion dollars annually, and $20 billion annually in care of cancer patients. What is Cancer? Cancer is a broad ranging term that is used by many people, including medical professionals such as doctors. Cancer, in its most fatal and aggressive form, is of a larger class of diseases known as neoplasms. There are two forms of a neoplasm: benign or malignant. A benign neoplasm is encapsulated, or surrounded, so that it's growth is restricted, whereas a malignant neoplasm is not closed in. Malignant tumors grow much more quickly than benign forms and spread into the surrounding normal tissue, and virtually destroy it, (Grolier Electronic Encyclopedia, Cancer). The question is, what exactly is cancer? Cancer, is the break down and mutation of the cells of the body, when the DNA (Deoxyribonucleic Acid) sequences in those molecules are disrupted and errors form in the structures, (Grolier, Genetic Code). This mutation spreads through surrounding tissue until it disrupts major systems in the body (such as respiratory, digestive and waste management) cause that system to fail. What causes Cancer to become active? Since it is believed that almost all people have some type of cancer in their body, (although benign), any person that comes in contact with a carcinogen, (any cancer-causing agent), will cause these benign cells to become malignant. It is when the cells become malignant, that cancer actually occurs. Cancer, in this context, can be caused by many different agents; chemical, biological or physical. Chemical Agents Chemicals that can cause a benign cell to become active include things such as complex hydrocarbons, aromatic amines, certain metals, drugs, hormones, and naturally occurring chemicals in plants and molds. Hydrocarbons and nitrosamines can be found in cigarette smoke and may contribute to the condition called "lung cancer". Other chemicals that seem to cause incidents of "bladder cancer", such as 2-naphthylamine, were used in the dye industry for dyeing cloth, but when a number of cases of cancer turned up, its use was discontinued. Vinyl Chloride, a chemical gas, has also appeared, seeming to cause "liver cancer" ,(Grolier, Cancer) Drugs, such as some cancer-treating alkylating agents, are also... This is not the end of the termpaper! Register below to see the complete version of this term paper.
| ||||||||||||||||||||||||
| Home | Login | Logout | Join | Privacy Policy | Contact Us |
|
Copyright © 2002-2007 Mid Term Papers. All rights reserved. This term papers website is used for research purposes only. If you have forgotten your username or password, please click here. If you like to cancel your account, please click here. |
|
1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 |