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The Cause Of Cancerby: canro dicausa Cancer is the disease of the cells. It is an abnormal growth of cells, which tend to reproduce in an uncontrolled way and, in some cases, spread or metastasize. A cancerous growth or tumor is also known as a malignant growth or tumor. A growth or tumor, which is non-malignant is called benign. Such tumors are not cancer. Cancer is not a single disease. It is a group of more than hundred different and distinctive diseases. It is not contagious. Cancer can involve any tissue of the body and have many different forms in each body area. Most cancers are named for the type of cell or organ in which they start. If a cancer spreads (metastasizes), the new tumor bears the same name as the original(primary) tumor. Cancer is the Latin word for crab. The ancients used the word to mean a malignancy, doubtless because of the crab-like tenacity a malignant tumor sometimes seems to show in grasping the tissues it invades. Cancer may also be called malignancy, a malignant tumor, or a neoplasm (literally, a new growth). In medicine, common term for neoplasms, or tumors, that are malignant is known as Cancer. Like benign tumors, malignant tumors do not respond to body mechanisms that limit cell growth. Unlike benign tumors, malignant tumors consist of undifferentiated, or unspecialized, cells that show an atypical cell structure and do not function like the normal cells from the organ from which they derive. Cancer cells, unlike normal cells, lack contact inhibition; cancer cells growing in laboratory tissue culture do not stop growing when they touch each other on a glass or other solid surface but grow in masses several layers deep. Cancer results from mutations of certain genes that allow the cells to begin their uncontrolled growth. These mutations are either inherited or acquired. Acquired mutations are caused by repeated insults from triggers (e.g., cigarette smoke or ultraviolet rays) referred to as carcinogens. There is usually a latency period of years or decades between exposure to a carcinogen and the appearance of cancer. This, combined with the individual nature of susceptibility to cancer, makes it very difficult to establish a cause for many cancers. The most significant avoidable carcinogens are the chemical components of tobacco smoke. Dietary components, like excessive consumption of alcohol or of foods high in fat and low in fiber rather than fruits and vegetables that contain antioxidants and necessary micronutrients, have also been linked with various cancers. Some cancers may be triggered by hormone imbalances. For example, some daughters of mothers who had been given DES (diethylstilbestrol) during pregnancy to prevent miscarriage developed vaginal adenocarcinomas as young women. Aflatoxins are natural mold byproducts that can cause cancer of the liver. Certain carcinogens present occupational hazards. For example, in the asbestos industry, workers have a high probability of developing lung and colon cancer or a particularly virulent cancer of the mesothelium (the lining of the chest and abdomen). Benzene and vinyl chloride are other known industrial carcinogens. Risk to humans from carcinogens depends upon the dose and a person's biologic susceptibility. Factors influencing a person's biological susceptibility to cancer include age, sex, immune status, nutritional status, genetics, and ethnicity. Latest Cancer News:Cancer Connection: Survivor's guilt can be painful side effect of cancer People going through cancer treatment at the same time often form their own peer group. They see each other in chemo, in radiation and in various support groups. The fortunate ones do well, but they often feel guilty when others in their cohort succumb to the disease. Cancer institute celebrates opening of expansion LITTLE ROCK ? Forty cancer survivors shared the stage with dignitaries such as Gov. Mike Beebe and former U.S. Sen. David Pryor at a ceremony today marking the opening of a 12-story expansion to the Winthrop P. Rockefeller Cancer Institute. Cancer Research UK launches new £18 million Biotherapeutics Development Unit Cancer Research UK's Drug Development Office marks the launch of its Biotherapeutics Development Unit (BDU) today (Friday) with the manufacture of its first product - an antibody for treating a range of cancers. Cancer Vaccine: 4 Months of Life Worth $100K? Prostate cancer vaccine, Provenge, adds 4 months to life, at a pricetag of 100K. The first-ever approved cancer vaccine, Provenge offers hope to men with advanced prostate cancer, but the high cost of this new treatment raises healthcare policy questions. Prostate cancer - Sipuleucel-T - Cancer - Cancer vaccine - Health CÁNCER (Julio 30) CÁNCER: No olvides desarrollar tu trabajo con organización y perseverancia. Trata de hacer algo totalmente nuevo; tus amistades serán tus mejores aliadas. Breast Cancer's DNA Yields More Secrets Title: Breast Cancer's DNA Yields More Secrets Category: Health News Created: 7/29/2010 2:10:00 PM Last Editorial Review: 7/30/2010 Cancer Group Says State Failing To Combat Disease The American Cancer Society released a statement saying Tennessee is falling short on legislative efforts to fight the disease. Cancer patients in windpipe swap op Doctors have successfully transplanted windpipes into two cancer patients in an innovative procedure that uses stem cells to allow a donated trachea to regenerate tissue and create an organ biologically close to the original. Related Stories Two killed in Los Angeles explosion Billy the Kid pardon considered Chelsea Clinton set to tie the knot Everglades added to UN danger list Wilders denied ... Cancer survivors show how to LiveStrong Oklahoma cancer patients and survivors will pitch for a future free of cancer at the annual LiveStrong Night with the Oklahoma City RedHawks. Turner Mason Swink, an Oklahoma City eighth-grader first diagnosed with cancer when he was only a year old, and 8-year-old Caitlin Schemmel, a third-grader from Colbert diagnosed with leukemia in December, will throw out the first pitch at the event ... Male Breast Cancer In Family Leads To High Perception Of Risk, Low Likelihood Of Genetic Counseling People with a family history of male breast cancer perceive themselves to be at higher risk of developing the disease than do patients with a family history of female breast cancer; however those with male breast cancer in their families are less likely to know about or seek genetic testing than those with a family history of female breast cancer, according to a study led by researchers at the ... Showtime stays true to form with 'The Big C,' a cancer comedy - Dallas Morning News
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