September 11th, 2010 by Medgadget in Better Health Network, Health Policy, News, Opinion, Research
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Bacteria may be having a renaissance. Back in the days of the discovery of penicillin, doctors gleefully handed out antibiotics like they were candy and patients were more than happy to munch them down. They were quite effective too, but bacteria rapidly became resistant.
Doctors and scientists worry that we are approaching a time where if we don’t come up with novel antibiotic mechanisms, we will face an epidemic of untreatable bacterial infections. MRSA, methicillin-resistant staphylcoccal auerus, is probably one of the biggest fears.
John Rennie wrote about this issue in the PLoS blog The Gleaming Retort. He describes two strategies scientists are using to try to come up with new weapons in the great antibacterial war. So, naturally one of the first things they turned to was cockroach brains. Read more »
*This blog post was originally published at Medgadget*
September 9th, 2010 by Medgadget in Better Health Network, News, Research
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Yanko Design blog is profiling the Braille Buddy project that aims to develop a simple-to-use tool to help people who’ve lost eyesight to learn Braille.
Braille Buddy has little retractable bumps that code for different letters, a keyboard, and a voice synthesizer that guides patients through different lessons. The voice will read out letters that a patient has to type back in Braille, and the tactile screen will display letters to read and identify.
Yanko Design: My Best Buddy Braille…
*This blog post was originally published at Medgadget*
September 5th, 2010 by Medgadget in Better Health Network, News, Research
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Researchers at the University of Saskatchewan have developed a solar-powered toothbrush that doesn’t require toothpaste.
At the base of the brush is a solar panel, which transmits electrons to the top of the toothbrush through a lead wire. These electrons react with acid in the mouth, breaking down plaque without the help of toothpaste. It’s an advancement of a model described 15 years ago using a titanium dioxide rod which released electrons when illuminated.
The researchers are currently recruiting 120 teens to test the brush. The model is named Soladey-J3X and is manufactured by the Shiken company of Japan.
More from Saskatoon StarPhoenix: Solar toothbrush could make toothpaste obsolete…
*This blog post was originally published at Medgadget*
August 31st, 2010 by Medgadget in Better Health Network, News, Research
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Researchers at Lund University in Sweden successfully used magnets to guide clot-dissolving drugs (fibrinolytics) directly to the site of a thrombus stuck within a coronary stent. They did this by attaching the drugs to magnetic nanoparticles and using external magnets to move them to the right spot.
From the press release:
Guiding drug-loaded magnetic particles using a magnet outside the body is not a new idea. However, previous attempts have failed for various reasons: It has only been possible to reach the body’s superficial tissue, and the particles have often obstructed the smallest blood vessels.
The Lund researchers’ attempt has succeeded partly because nanotechnology has made the particles tiny enough to pass through the smallest arteries and partly because the target has been a metallic stent. When the stent is placed in a magnetic field, the magnetic force becomes sufficiently strong to attract the magnetic nanoparticles. For the method to work the patient therefore has to have an implant containing a magnetic metal.
Press release: Medicine reaches the target with the help of magnets…
Abstract in Biomaterials: The use of magnetite nanoparticles for implant-assisted magnetic drug targeting in thrombolytic therapy.
*This blog post was originally published at Medgadget*
August 28th, 2010 by Medgadget in Better Health Network, Book Reviews, Opinion, Research
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Book review by Dan Buckland
(Dan Buckland is an editor at Medgadget and an MD/PhD student at Harvard Med/MIT whose thesis deals with diagnosing back injury in spaceflight using ultrasound.)
Mary Roach, author of previous entertaining books Bonk (a history of sex research) and Stiff (a history of cadaver research), has turned her considerable talents in translating decades of research into a readable review of human (and animal) spaceflight experimentation.
The title of her new book, Packing for Mars: The Curious Science of Life in the Void, is a bit of a misnomer — only the last chapter is devoted to the medical advances needed for a trip to Mars. However, it is a great layman’s history of the biomedical results of both the American and Russian space programs.
Through my own research and academic career I’ve been peripherally involved with many of the recent studies she mentions in the book, and I know many of the people she interviewed, so I give her credit for taking some fairly complicated concepts and distilling them to relevant anecdotes and asides. Read more »
*This blog post was originally published at Medgadget*
