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Cancer Survival Depends on Where You Live (Science/Technology, 10 articles)
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TORONTO - Canada consistently ranks near the top in a worldwide estimate of five-year survival rates for cancer patients, according to an international study, which found huge variations from country to country and even within some nations' borders. The CONCORD study directly compares survival rates in 31 countries for four malignancies - breast cancer in women, prostate cancer, colorectal cancer in men and colorectal cancer in women. Economic differences among countries, access to health care, and the availability of cancer treatments feed the disparities in survival, the report said. " There is a very wide global range in the odds of survival after a cancer diagnosis said lead researcher Michel Coleman A prostate cancer study that could change how doctors treat some patients found that widely used hormone-blocking drugs did not improve survival chances for older men whose disease hadn't spread. In fact, men given the drugs alone were slightly more likely to die of prostate cancer during the next six years than men who 'd gotten medical monitoring but no or delayed treatment, another common treatment approach.
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Women over 40 with depression may be at risk of developing heart disease: study (Science/Technology, 5 articles)
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Though depression in women is associated with a higher risk of heart disease, it's not the case with men, suggests new research from Statistics Canada. It found that among people aged 40 or older without heart disease in 1994/1995, 19 per cent of men and 15 per cent of women had developed or passed away from heart disease by 2006/2007. TORONTO - A new study released Wednesday suggests there may be a connection between depression and developing heart disease in middle-aged women.
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Effort to control HIV in Africa 'badly targeted' (Science/Technology, 9 articles)
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A genetic mutation that originally protected Africans from a virulent form of malaria now renders them 40% more susceptible to HIV infections, offering a partial explanation for the disproportionate spread of the virus among Africans and African Americans, researchers reported today. A genetic variant peculiar to Africans substantially raises their risk of infection with HIV, according to research that suggests evolved susceptibility may be helping to drive the continent's Aids epidemic. The 90 per cent of Africans who carry the DNA variation are 40 per cent more likely to contract HIV than those without it, after similar exposure to the virus, scientists from Britain and America have found.
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blaster@cs.columbia.edu
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