CHEM 181 Final: World of Chem- Food- Final Study Guide.docx
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CHEM 181 Full Course Notes
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Cancer milestone: cancer deaths in the usa fall of the first time in over 70 years (only -1 to 3%; not that fast of a decline) 556,902 died from cancer in 2003, down 369 from 2002. Death rate has been falling, but population keeps rising. The explanation: smoking on decline, cancer spotted earlier and treated better. Most common cancers (2003): lung: men, 89,964; women, 68,122, colon, rectum: men, 28,007; women, 27,961, breast: men, 380; women, 41,620, prostate: men, 29,554. Significance: half-million still die every year, but drop encouraging, total deaths may rise again because of ageing population. Surgery, chemo and radiation (slash, poison and burn: radiation is often the last resort. 5 year survival rates have risen from 50% to 66% Several vaccine strategies are now being researched: peptide based, cell based, example: the fda has approved a vaccine called provenge for prostate cancer and it has lengthened life by several months. Cancer very much depends on the diet.