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24 April 2014 11:45 am ,
Vol. 344 ,
The National Institutes of Health is revising its "two strikes" rule, which allowed researchers only one chance to...
By stabilizing the components of retromers, molecular complexes that act like recycling bins in cells, a recently...
Fossil fuels power modern society by generating heat, but much of that heat is wasted. Semiconductor devices called...
Researchers are gaining insights into what made Supertyphoon Haiyan so powerful and devastating through post-storm...
Millions around the world got a first-hand look at what it was like to be in Tacloban while it was pummeled by...
Major climate data sets have underestimated the rate of global warming in the last 15 years owing largely to poor data...
The tsetse fly is best known as the vector for the trypanosome parasites that cause sleeping sickness and a disease in...
- 24 April 2014 11:45 am , Vol. 344 , #6182
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ScienceShot: Cats Don't Cause Cancer
21 August 2012 7:15 pm
Last year, cat owners got a scare when a team of French researchers reported a possible link between felines and brain cancer. Cat feces can harbor a single-celled parasite called Toxoplasma gondii, and the scientists found that nations with higher rates of human T. gondii infection also have higher incidences of brain cancer. The findings were controversial, and many scientists considered the link weak. Now, another team of researchers believes it has settled the issue. The scientists examined a cohort of more than 600,000 British women aged 50 and older and tracked how many developed brain tumors over an average of 3 years. Eighteen percent of those women—more than 100,000—owned at least one cat. But the cat-owning women were no more likely to develop brain cancer than their cat-free counterparts, despite their presumably greater risk of exposure to T. gondii, the team reports online today in Biology Letters. So the next time someone scratches up your furniture, blame the cat—but when it comes to brain cancer, point the finger somewhere else.
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