Other Free Encyclopedias » Medicine Encyclopedia » Genetics in Medicine - Part 1

Carcinogens - Cancer-causing Chemicals, Oncogenes And Tumor Suppressors, Reducing Exposure

carcinogenic contact radiation blood

Carcinogens are agents that cause cancer, and include chemicals, radiation, and some viruses. While avoiding contact with carcinogenic agents is wise, it is virtually impossible to steer clear of them completely. Ultra-violet radiation from the sun, substances in food, and even oxygen can induce malignancies. In spite of the pervasive nature of carcinogens, however, not all individuals develop cancer, which suggests that mere contact Breathing second hand smoke increases a person's heart rate and blood pressure, and delivers dangerous amounts of carbon monoxide to the blood. It is estimated that 2 percent of lung cancer deaths are caused by passive smoking. with a carcinogenic agent is insufficient to produce this lethal disease. That is because organisms have evolved protective mechanisms to prevent cancer, and some of these defenses work by thwarting the potentially harmful effects of carcinogens.

Cardiovascular Disease - Finding Genes For Cardiovascular Disease, Ongoing Studies, Goals Of Genetic Studies [next] [back] Cancer - A Genetic Disease, Classification Of Cancer Types, Benign Or Malignant Tumor, Type Of Cell - Type of Tissue, Site of Origin

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