Tag Archives: health

The common cold: The immune system overreacts

Infect a small study group with rhinovirus-16, the source of the common cold. Scrape cells from inside their noses; repeat for a control group that got a sham inoculation. Then use gene-chip technology to see how more than 6,000 of the symptom sufferers’ genes express themselves.

…[R]hinovirus infection triggered a massive immune response in the nasal mucosa. Because rhinovirus is not as destructive as other more serious viral infections, this response appears to be disproportionate to the threat…. “This study shows that after rhinovirus infection, cold symptoms develop because parts of our immune system are in overdrive,” said Lynn Jump, principal researcher at Procter & Gamble and study author. “The findings are important because they provide us a blueprint for developing the ideal cold treatment: one that maintains the body’s natural antiviral response while normalizing the inflammatory response.”

An antiviral compound called viperin, produced by the epithelial cells, seems to fight the influenza virus, too.

[Rhinovirus: actual microscopic image! by hey mr glen]

U.S. Presidential science

politicsI try to keep partisan stuff out of these posts, but somebody needs to note that Obama has responded at some length to 14 questions on science policy issues posed to him by Sciencedebate 2008, representing a truckload of scientific associations. McCain hasn’t answered yet. NPR has a short item about both candidates’ health policies. And the AAAS just put out a “policy alert” on a few of Gov. Palin’s views on evolution, global warming, and other topics. Not always sexy issues to the media, but something for American voters to think about.

[Story tips: slashdot, Framing Science; Political Studies by minkymonkeymoo]

Viropiracy – because safeguarding ‘intellectual property’ is more important than saving lives

embroidered flu virus cross-sectionThis is just a *face-palm* of epic proportions – welcome to the concept of “viral sovereignty.

This extremely dangerous idea comes to us courtesy of Indonesia’s minister of health, Siti Fadilah Supari, who asserts that deadly viruses are the sovereign property of individual nations — even though they cross borders and could pose a pandemic threat to all the peoples of the world.

Before anyone jumps down my throat, yes, there is a precedent for developing nations protecting the intellectual property implicit in their native biome – the West has shafted them in the past, after all. But as Jamais Cascio points out:

… it’s extraordinarily important for information about potential pandemic diseases to be made as open as possible, if we want to avoid a global health disaster. Withholding viral data, and refusing to provide samples of the viruses, out of a misplaced fear of viropiracy (or more paranoid fantasies), is simply criminal.

I think you’d have to be very paranoid to not see the logic there, really. But anyway – if you catch a virus, it replicates in your body, right? So if viropiracy became a part of international legislation, would you technically be infringing the IP of a nation if you caught a unique disease there but crossed the border before the symptoms started to show, and end up liable to be prosecuted for piracy as well as smuggling? Probably not… but it highlights just how bloody stupid an idea it is, doesn’t it? [image by Noii]

ReWalk exoskeleton video – marketing the future as the present

ReWalk is an Israeli-developed exoskeleton suit that gives paraplegics the ability to stand, walk – and even drive. This story has been floating around for a few days (including some typically tasteless Robocop comparisons from UK tabloid news outlets), but m1k3y at grinding.be posted the video and it looked so science fictional – that perfect balance between “wow, check it out” and no-big-deal workaday reality – that I thought it deserved a re-run here:

See what I mean about workaday? The whole atmosphere of the video is low-tech, almost mundane. Perhaps they’re playing down the technological angle for fear of attaching stigma, but it’s about as un-Robocop in style as you could imagine. What will promotional videos for the first commercially available brain-machine interfaces look like?