Cancer - 2. Wear sunscreen w/ SPF 40+. 3. Wear appropriate...

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Rapid and uncontrollable development and production of cells.
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1. Inheritance may increase risk 2. Proto-oncogenes and tumor suppressor genes mutate or become damaged by carcinogens 3. Known carcinogens: Viruses and bacteria Environmental chemicals Tobacco Radiation Dietary factors
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Conversion begins with a mutation (a change in DNA) by: 1. Chemical 2. Physical 3. Biological Conversion
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Development and Progression
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Begins when a chemical substance stimulates growth of a mutated cell Those chemical substances influence a 2 nd stage of carcinogens called promoters. Promoters stimulate cell to divide uncontrollably Metastasis- cancer traveling to other sites; like a forest fire
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ozone
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Screens out 99% of harmful UV light Ozone produced by lightening 1% in ozone will result in a 2% in skin cancer Holes in ozone: Dupont- CFCs: hairspray, refrigerators, air conditioning Which country has the highest rate of skin cancer?
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1. Avoid sun between 10am to 4pm.
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Unformatted text preview: 2. Wear sunscreen w/ SPF 40+. 3. Wear appropriate clothing. Malignant melanoma • 2% of all cancers Risks: 1. Skin type 2. Sun exposure 3. Family history 4. Age 5. Immunological status • A= asymmetry • B= border • C= color • D= diameter Normal mole Melanoma • Genetic testing • Biopsy • Blood test • X-rays, PET, MRI • Visual & tactile observation • Surgery • Radiation • Chemotherapy • Homeopathy • Know family history • Get regular medical screenings • Learn self-exam techniques • Avoid direct sunlight • Watch your diet and weight • Don’t smoke • Drink alcohol in moderation (alcohol decrease heart disease, but increases risk of certain cancers) • Become educated INQUIRY 1. What do CFC’s do? 2. What is a proto-oncogene? 3. Name 3 carcinogens. 4. What are the ABCD’s of skin cancer? 5. What is the function of ozone? 6. Who is Henrietta Lacks?...
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This note was uploaded on 04/19/2011 for the course BIOL 101 taught by Professor Wong during the Fall '09 term at University of Hawaii, Manoa.

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Cancer - 2. Wear sunscreen w/ SPF 40+. 3. Wear appropriate...

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