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Medicine

Scientists Turn Skin Cells Into Beating Heart Muscle 113

Posted by samzenpus
from the grow-your-own-organs dept.
An anonymous reader writes "By taking skin cells and turning them into stem cells, a technique that is already well known, researchers at Technion Israel Institute of Technology were able to generate beating heart cells — a medical first. "We have shown that it's possible to take skin cells from an elderly patient with advanced heart failure and end up with his own beating cells in a laboratory dish that are healthy and young — the equivalent to the stage of his heart cells when he was just born," Lior Gepstein, study author and professor of medicine said."
Medicine

Know What Time It Is? Your Medical Device Doesn't 290

Posted by timothy
from the why-the-economist-rocks dept.
An anonymous reader writes "A man with one clock knows what time it is, goes the old saw, a man with two is never sure. Imagine the confusion, then, experienced by a doctor with dozens. Julian Goldman is an anaesthetist at Massachusetts General Hospital in Boston. After beginning to administer blood-thinning medication during an urgent neurological procedure in 2005, Mr Goldman noticed that the EMR had recorded him checking the level of clotting 22 minutes earlier. As a result, four hospitals in the northeast had their medical devices checked, and found that on average they were off by 24 minutes. The easy solution that devices could have used since 1985? NTP."
Google

Researchers Use Google's Search Algorithms To Fight Cancer 52

Posted by samzenpus
from the searching-for-a-cure dept.
MatthewVD writes "German scientists have modified Google's PageRank algorithm to scan tumors and learn more about how cancers progress. PageRank orders results based on how other web pages are connected to them via hyperlinks; the modified algorithm, NetRank, scans how genes and proteins in a cell are similarly connected through a network of interactions with their neighbors. This approach could also yield new therapies to help combat tumors."
Medicine

NIH Study Finds That Coffee Drinkers Have Lower Risk of Death 234

Posted by timothy
from the but-only-in-a-given-time-period dept.
parallel_prankster writes "Older adults who drank coffee — caffeinated or decaffeinated — had a lower risk of death [full paper is paywalled, at the New England Journal of Medicine] overall than others who did not drink coffee, according to a study by researchers from the National Cancer Institute (NCI), part of the National Institutes of Health, and AARP. Coffee drinkers were less likely to die from heart disease, respiratory disease, stroke, injuries and accidents, diabetes, and infections, although the association was not seen for cancer. These results from a large study of older adults were observed after adjustment for the effects of other risk factors on mortality, such as smoking and alcohol consumption. They also found that the association between coffee and reduction in risk of death increased with the amount of coffee consumed. Relative to men and women who did not drink coffee, those who consumed three or more cups of coffee per day had approximately a 10 percent lower risk of death. Researchers caution, however, that they can't be sure whether these associations mean that drinking coffee actually makes people live longer."
Medicine

Paralyzed Man Regains Hand Function After Breakthrough Nerve Rewiring Procedure 56

Posted by Soulskill
from the so-i-rewired-it-grunt-grunt-grunt dept.
An anonymous reader writes "A 71-year-old man who became paralyzed from the waist down and lost all use of both hands in a 2008 car accident has regained motor function in his fingers after doctors rewired his nerves to bypass the damaged ones in a pioneering surgical procedure, according to a case study published on Tuesday."
Medicine

Wireless Implants Promise Superior Vision Restoration 52

Posted by Unknown Lamer
from the trends-show-cool-visors-back-in-fashion dept.
ananyo writes, quoting Nature: "The development of retinal implants has been dogged by problems of unwieldiness since the first implantable stimulator for vision restoration was developed in 1968. Now researchers have come up with a solution that overcomes many of the problems by the use of special glasses that fire infrared signals into the eye and onto an implanted array of silicon photodiodes. The system, tested in rats, simplifies what needs to be implanted and both transmits visual data and power directly to the implants, eliminating the need for any bulky external power source (abstract)."
Medicine

Israel Passes Photoshop Law To Combat Anorexia 488

Posted by samzenpus
from the bigger-model dept.
Hugh Pickens writes "The Atlantic reports that the Israeli parliament has passed legislation that prohibits fashion media and advertising with models who fall below the World Health Organization's standard for malnutrition banning underweight models as determined by Body Mass Index. The new law also stipulates that any ad which uses airbrushing, computer editing, or any other form of Photoshop editing to create a slimmer model must clearly state that fact. Advertising campaigns created outside of Israel must comply with the legislation's standards in order to appear in Israel. 'I realized that only legislation can change the situation,' says Rachel Adato, an Israeli parliament member with a background in medicine. 'There was no time to educate so many people, and the change had be forced on the industry. There was no time to waste, so many girls were dieting to death.' The measure has been controversial within Israel for raising the question of where free speech bumps up against the fashion industry's responsibility — and its possible harm — to its customers' psychological well-being. Donald Downs, a professor at the University of Wisconsin and an expert on the First Amendment, says that it would be very tough to pass something like Israel's law in the US Congress. 'In the US, it would be hard to justify this type of law on either legal or normative policy grounds,' says Downs. 'The Israeli law is paternalistic in that it prohibits something because of the effect it might have on others in the longer term.'"
Transportation

TSA's mm-Wave Body Scanner Breaks Diabetic Teen's $10K Insulin Pump 811

Posted by Soulskill
from the terrorists-are-known-to-have-insulin dept.
OverTheGeicoE writes "Savannah Barry, a Colorado teenager, was returning home from a conference in Salt Lake City. She is a diabetic and wears an insulin pump to control her insulin levels 24/7. She carries documentation of her condition to assist screeners, who usually give her a pat-down search. This time the screeners listened to her story, read her doctor's letter, and forced her to go through a millimeter-wave body scanner anyway. The insulin pump stopped working correctly, and of course, she was subjected to an invasive manual search. 'My life is pretty much in their hands when I go through a body scan with my insulin pump on,' she says. She wants TSA screeners to have more training. Was this a predictable outcome, considering that no one outside TSA has access to millimeter-wave scanners for testing? Would oversight from the FDA or FCC prevent similar incidents from happening in the future?"
Medicine

FDA May Let Patients Buy More Drugs Without Prescriptions 392

Posted by timothy
from the but-prescriptions-are-sacred-and-perfect dept.
Hugh Pickens writes "The Washington Times reports that the Food and Drug Administration may soon permit Americans to obtain some drugs used to treat conditions such as high blood pressure and diabetes without obtaining a prescription. They may allow patients to diagnose their ailments by answering questions online or at a pharmacy kiosk in order to buy current prescription-only drugs for conditions such as high cholesterol, certain infections, migraine headaches, asthma or allergies. Some pharmacists embrace the notion that they should be able to dole out medication for patients' chronic conditions without making them go through a doctor. 'This could eliminate the need for a physician visit for certain meds that may have been prescription prior to this change,' said Ronna Hauser, vice president of policy and regulatory affairs for the National Community Pharmacists Association. 'However, there may be circumstances when a patient might need a physician visit and diagnosis and original prescription to start therapy but could continue on that therapy with pharmacist refill authorization capabilities.'" (Read more, below.)
Medicine

Exposure to Wide Variety of Microbes May Reduce Allergies 120

Posted by Unknown Lamer
from the introducing-whole-foods-gammaproteobacteria-shake dept.
sciencehabit writes "A new study reveals that people who grow up in more rural environments are less likely to develop allergies. The reason may be that environments rich with species harbor more friendly microbes, which colonize our bodies and protect against inflammatory disorders." From the article: "To test whether or not biodiversity does indeed create a shield against such conditions, the team investigated the microbial diversity of 118 teenagers. The study participants, who had lived in the same houses their whole lives, were chosen at random from a 100-by-150-kilometer block in eastern Finland. Some kids lived on rural, isolated farms, while others lived in larger towns. ... surveyed all of the types of plants growing around the adolescents' homes. The participants were part of a separate long-term allergy study, so the researchers took advantage of that data to investigate the connection between biodiversity and allergies. ... Whether there is just something special about Finland's native plants or whether this finding can be applied around the world is still an open question, Hanski says. 'Many research groups worldwide could easily attain these data from their study populations, and then we'd know how general these results might be.'"
Canada

Low Oxygen Cellular Protein Synthesis Mechanism Discovered 94

Posted by Unknown Lamer
from the live-forever dept.
New submitter _prime writes "Until recently the mechanism by which cells make proteins in low-oxygen environments has been unknown. As published in Nature (paywall) this week, the discovery of the mechanism by an Ottawa-based team of researchers potentially means it could be 'very easy to kill cancer cells' without harming normal cells because cancer cells leverage the same low-oxygen protein synthesis mechanism even in the presence of normal oxygen levels."
Biotech

Crowdsourcing Game Helps Diagnose Infectious Diseases 25

Posted by Soulskill
from the grand-theft-antibody dept.
Lucas123 writes "Researchers at UCLA have created an online crowdsourcing game designed to let players help doctors in key areas of the world speed the lengthy process of distinguishing malaria-infected red blood cells from healthy ones. So far, those playing the game have collectively been able to accurately diagnose malaria-infected blood cells within 1.25% of the accuracy of a pathologist performing the same task (PDF). The researchers hope that users of the game can help eliminate the high cost and sometimes poor accuracy of diagnosis in areas like sub-Saharan Africa, where malaria accounts for some 20% of all childhood deaths."
Medicine

Growing Evidence of Football Causing Brain Damage 684

Posted by timothy
from the could've-told-you-that dept.
ideonexus writes "NFL Linebacker Junior Seau's suicide this week bears a striking similarity to NFL Safety Dave Duerson's suicide last year, who shot himself in the chest so that doctors could study his brain, where they found the same chronic traumatic encephalopathy that has been found in the brains of 20 other dead football players. Malcom Gladwell stirred up controversy in 2009 by comparing professional football to dog fighting for the trauma the game inflicts on players' brains. With mounting evidence that the repeated concussions football players receive during their careers causing a lifetime of brain problems, it raises serious concerns about America's most popular sport and ethical questions for its fanbase."
Programming

Open Research Computation Closes Before Opening 22

Posted by Soulskill
from the good-run-folks dept.
New submitter wagdav writes " Open Research Computation, a peer-reviewed journal on software designed for use by researchers closes on 8th May 2012. It just started to accept manuscripts sometime last year, and had not actually launched yet. The journal was to be open access and tried to be different than others with very demanding pre-submission requirements such as: code availability, high quality documentation and testing, the availability of test input and output data, and reproducibility. Now it is planned to be launched as an ongoing series in Source Code for Biology and Medicine."
Medicine

Researchers Identify Genetic Systems Disrupted In Autistic Brain 167

Posted by Soulskill
from the plotting-the-most-complex-map dept.
hessian sends this excerpt from Medical Xpress "Autism has a strong genetic basis, but so far efforts to identify the responsible genes have had mixed results. The reason for this is that autism is influenced by many different genes, and different genes are involved in different individuals, making it hard to find the common genetic ground between patients. Now, research conducted at the Hebrew University of Jerusalem has shown that despite this fact, the different genes involved in autism tend to be involved in specific processes in the brain. This can explain, on the one hand, similarities in the behavioral symptoms of different autistics, but also the large spectrum of behaviors observed in different autistic individuals."
Medicine

Monkeypox Scare Grounds Flight In Chicago 109

Posted by timothy
from the when-that's-the-good-news dept.
Hugh Pickens writes "AP reports that when a Delta Airlines flight touched down at Midway International Airport in Chicago, the passengers looked out the window to see the jet surrounded by fire trucks, police cars and ambulances. Health officials came through the door wearing facemasks and other protective gear. As it turns out the bedbugs that infest hotels appear to be the source of red marks on a 50-year old Minnesota woman that prompted health officials to quarantine the jet for fear they were dealing with something much more serious: monkeypox. Lise Sievers called her mother during a layover in Detroit and told her that one of the children she visited and is trying to adopt in Uganda had some pus-filled red bumps and also mentioned she had some small bumps of her own, a rash that she suspected was the handiwork of bedbugs. Those two very different bumps — one with pus, one without — got jumbled up in Siever's mother's mind, and she called a hospital near her Indiana home to ask about treatment for her daughter. 'She told them her daughter is on a flight back from Uganda and has some red bumps which are pussing and what should she do to treat them,' says Roger Sievers. 'She was looking for some general advice.' Health officials feared they were looking for monkeypox, a rare and sometimes fatal disease mostly in found in central and western Africa. After the passengers waited on the plane for a couple of hours, officials brought good news. 'They came back down and told my mom it was bed bug bites and they started releasing people.'"
Medicine

Bionic Eye Patient Tests Planned For 2013 59

Posted by samzenpus
from the gentlemen-we-can-rebuild-him dept.
angry tapir writes "Australian researchers are getting ready to test a bionic eye on patients in 2013. The eye consists of 98 electrodes that stimulate nerve cells in the retina, which is a tissue lining the back of the eye that converts light into electrical impulses necessary for sight, and allow users to better differentiate between light and dark. With the bionic eye, images taken by a camera are processed in an external unit, such as a smartphone, then relayed to the implant's chip. This stimulates the retina by sending electric signals along the optic nerve into the brain where they are decoded as vision."
Medicine

Mad Cow Disease Confirmed In California 274

Posted by Soulskill
from the denny-crane dept.
New submitter wave9x writes "The United States Department of Agriculture confirmed today that the nation's fourth case of bovine spongiform encephalopathy, sometimes referred to as 'mad cow disease' was found in a dairy cow in California. The animal has been euthanized and the carcass is being being held under State authority at a rendering facility in California and will be destroyed."
Medicine

Childhood Stress Leaves Genetic Scars 334

Posted by Soulskill
from the stories-told-in-base-pairs dept.
sciencehabit writes "Traumatic experiences in early life can leave emotional scars. But a new study suggests that violence in childhood may leave a genetic mark as well. Researchers have found that children who are physically abused and bullied tend to have shorter telomeres — structures at the tips of chromosomes whose shrinkage has been linked to aging and disease."
Government

Should the FDA Assess Medical Device Defenses Against Hackers? 138

Posted by Soulskill
from the or-maybe-somebody-who-knows-things-about-computers dept.
gManZboy writes "The vulnerability of wireless medical devices to hacking has now attracted attention in Washington. Although there has not yet been a high-profile case of such an attack, a proposal has surfaced that the Food and Drug Administration or another federal agency assess the security of medical devices before they're sold. A Department of Veterans Affairs study showed that between January 2009 and spring 2011, there were 173 incidents of medical devices being infected with malware. The VA has taken the threat seriously enough to use virtual local area networks to isolate some 50,000 devices. Recently, researchers from Purdue and Princeton Universities announced that they had built a prototype firewall known as MedMon to protect wireless medical devices from outside interference."

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