American researchers are working on three antibodies that may mark a new step on the path toward an HIV vaccine, according to a report published online Thursday in the journal Science.
One of the antibodies suppresses 91 percent of HIV strains, more than any AIDS antibody ever discovered, according to a report on the findings published in the Wall Street Journal. The antibodies were discovered in the cells of a 60-year-old African-American gay man whose body produced them naturally. One antibody in particular is substantially different from its precursors, the Science study says.
The rapidly aging population of the United States as the Baby Boomers reach their golden years doesn't bode well for our collective vision: 30 percent of Americans over age 75 suffer from age-related macular degeneration (AMD), a common condition that causes the retina to degrade and decay, resulting in partial blindness. But after five years of deliberation, the FDA has approved the first implantable miniature telescope (IMT) that fits directly into the eye to correct the effects of AMD.
Though many scientists hailed the results last week, some geneticists expressed doubt about a study that linked several genes to extreme old age. Now, at least one expert is saying the DNA analysis chips used to conduct the study may have led to faulty results.
The study authors defend their work, but said in a statement Wednesday afternoon that they were re-examining their analysis.
Technology has long been helping elderly people who fall and can't get up to call for help -- there are alarm bracelets, emergency-button necklaces and wireless motion sensors, for a start.
Now a UK energy firm is working on a system that can passively detect when something is wrong -- Grandma won't even have to push a button.
A long-term study by Italian researchers shows that stem cells can help restore vision in eyes that have been blinded by burns. Moreover, the restored vision remained stable over 10 years.
Patients whose eyes have suffered heat or chemical burns typically experience severe damage to the cornea -- the thin, transparent front of the eye that refracts light and contributes most of the eye's focusing ability. The Italian technique uses stem cells taken from the limbus, the border between the cornea and the white of the eye, to cultivate a graft of healthy cells in a lab.
Cell phones come with all kinds of applications these days, but researchers at MIT have developed one with the power to change more than just a Facebook status. Using a small plastic lens that clips to a cell phone screen, the software can determine a person’s vision prescription on the spot, making quick, inexpensive diagnoses of refractive vision errors a reality, especially in remote areas of the world.
Spanish researchers have discovered a key component of infectious bacteria's battle plan, identifying a protein that tells bacteria in a colony to halt their forward march when antibiotics are present, waiting until the coast is clear before resuming the infection. The finding shows how bacteria outmaneuver antibiotics in the body to continue infecting an organ even after treatment, but it also pinpoints a vulnerability that researchers may be able to exploit to make antibiotics more effective.
We often think of our blood as specifically tasked with carrying oxygen to our brains and other organs, but it's also a living fluid, changing up its duties in response to various stimuli. To better understand -- and anticipate -- one aspect of this complicated biology, researchers have trained a neural network computer to model how platelets in the blood react to complicated conditions like those experienced during heart attack or stroke.
Brain-wave scanners might make it possible to communicate with people who are considered brain-dead, according to a new study reported in the Economist.
A couple of recent studies have shown that a small minority of vegetative patients might be more aware than they seem. Now, Damian Cruse, with the Medical Research Council's Cognition and Brain Sciences Unit in Cambridge, UK, thinks EEG machines will be able to help these patients communicate.
Nearly half the soldiers returning from combat in Iraq and Afghanistan are diagnosed with some kind of psychological condition, like post-traumatic stress disorder, brought on by specific battlefield experiences or traumatic brain injuries sustained during combat. To treat these mental battle scars, the new National Intrepid Center of Excellence (NICoE) will introduce state-of-the-art virtual reality technology that will help gently reintroduce soldiers to their experiences.