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http://www.sciencenews.org/view/interest/id/2509
| :: | Biomedicine |
Top Stories | November 7
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Three groups of healthcare professionals sent a letter to President Obama yesterday asking that he instruct his administration to revise federal flu-mask guidance. What these groups want: formal recognition that two studies last month showed conventional surgical masks are about as protective as the fancy — but much more expensive — N95 respirators in limiting H1N1 infection.
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A spot of encouraging news emerged yesterday on the medical-isotope front. The House of Representatives voted 440 to 17 in favor of a bill to reestablish domestic production of molybdenum-99. It’s the feedstock for the most heavily used nuclear agent in diagnostic medicine.
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Tiny metal nanoparticles can damage DNA, essentially by triggering toxic gossip.
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Biologists can tell a lot about how living things evolved by rooting around in their genes, comparing snippets of DNA from supposedly related — or unrelated — species. This only works, of course, if catalogs of those DNA snippets exist. Which they largely don’t yet — but could in the not-too-distant future. At least, that is, if a consortium of researchers gets its way — and a boatload of money.
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Pregnant women are considered at high risk for suffering complications or death from the new H1N1 pandemic swine flu. So they’re near the top of the list for getting vaccinated. A new international study calculates that up to 400 out of every million pregnant women who receive such swine-flu shots will experience a miscarriage within 24 hours. But not BECAUSE of their flu shots.
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More in Biomedicine
Pregnant women are considered at high risk for suffering complications or death from the new H1N1 pandemic swine flu. So they’re near the top of the list for getting vaccinated. A new international study calculates that up to 400 out of every million pregnant women who receive such swine-flu shots will experience a miscarriage within 24 hours. But not BECAUSE of their flu shots.
Study in an ER shows individuals successfully determined their own HIV status. Earlier this year, Dutch scientists showed that vaccinating mice against seasonal strains of flu rendered the animals unnecessarily vulnerable to dying if they later encountered a pandemic flu strain. Authors of this study now ask whether there are lessons in their data for parents. Such as whether to ignore recommendations that youngsters get seasonal-flu shots during years when pandemic flu is raging. Others suggest this idea, at least as regards people, is bunk. Hormone is one reason that men and women carry weight differently The average retail cost of U.S. coal-fired electricity was 9 cents per kilowatt-hour in 2007 (the most recent year for which data are available). But there are health and environmental costs of that power that consumers don’t pay, at least as part of their electric bill. According to a new report, accounting for those costs would double the true cost of shooting some electrons through the nation's power grid. |
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Science News
Lung inflammation and a lack of oxygen in the blood appear responsible for most fatal cases of H1N1 (swine) flu, three studies show.
11|7 Issue Links |
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