New data offer hints to why Parkinson’s disease so selectively harms brain cells that produce the chemical dopamine, say researchers at Washington University School of Medicine in St. Louis.
Friday, May 13, 2011 - 11:02
For the first time, a vaccine has completely protected monkeys against infection with SIV, a virus related to HIV that infects the animals. Out of 24 immunised rhesus macaques, 12 had long-term protection, with no signs of SIV a year after they were deliberately infected with the virus.
Thursday, May 12, 2011 - 10:04
McGill research team found two distinct disease-causing mutations and saved a baby girl.
Wednesday, May 11, 2011 - 14:20
A common, tiny tropical fish plays a key role in a new model for Cushings disease, giving researchers a powerful tool to conduct extensive searches for effective treatments for this serious hormonal disorder, testing up to 300 drugs weekly.
Tuesday, May 10, 2011 - 10:07
Obesity appears to impair normal muscle function in rats, an observation that could have significant implications for humans, according to Penn State researchers. "Our findings demonstrate that obesity involves more than accumulating excess fat and carrying excess weight," said Rudolf J. Schilder, American Physiological Society postdoctoral fellow in physiological genomics, Penn State College of Medicine. "We show that, during the development of obesity, skeletal muscles fail to adjust their molecular composition appropriately to the increasing body weight. Consequently, the muscles of obese mammals are not properly 'tuned' to the higher body weight they carry."
Tuesday, May 10, 2011 - 09:57
University of Arkansas researchers found a way to use fat development in fruit flies to help understand fat metabolism in other animals, including humans. They have developed a genetic model to study a protein that regulates fat production and storage in fruit flies.
Monday, May 9, 2011 - 13:31
A team from the University of Minnesota Medical School and College of Veterinary Medicine successfully performed heart surgery for tetralogy of Fallot on Duke, a 2-year-old American Staffordshire terrier, at the Veterinary Medical Center on April 11.
Friday, May 6, 2011 - 11:43
Researchers looking for better ways to treat tumours in children say they may have stumbled instead on something even better - a new therapy for lung cancer, Australia's single biggest cancer killer.
Thursday, May 5, 2011 - 23:38
Research shows that the chemotherapy drug taxol (also called paclitaxel) could help improve recovery from spinal cord injuries. Writing in Science,* a team led by Frank Bradke, Ph.D., of the Max Planck Institute of Neurobiology in Martinsried, Germany reports that taxol helps repair spinal connections and improves walking in rats with spinal cord damage.
Thursday, May 5, 2011 - 23:33
Scientists have discovered why some people may be protected from harmful parasitic worms naturally while others cannot in what could lead to new therapies for up to one billion people worldwide.
Thursday, May 5, 2011 - 23:29
Scientists say they have found a way to turn body fat into a better type of fat that burns off calories and weight. The US Johns Hopkins team made the breakthrough in rats but believe the same could be done in humans, offering the hope of a new way to treat obesity.
Thursday, May 5, 2011 - 12:34
New protein regulates water in the brain to control inflammation.
Tuesday, May 3, 2011 - 14:02
Imagine a battlefield medic or emergency medical technician providing first aid with a special wad of cottony glass fibers that simultaneously slows bleeding, fights bacteria (and other sources of infection), stimulates the body's natural healing mechanisms, resists scarring, and—because it is quickly absorbed by surrounding tissue — may never have to be removed in follow-up care. Or, imagine diabetics with hard-to-heal wounds finding a source of relief from the battle against infections and limb amputation.
Tuesday, May 3, 2011 - 13:47
A gene therapy approach using a protein called CD59, or protectin, shows promise in slowing the signs of age-related macular degeneration (AMD), according to a new in vivo study by researchers at Tufts University School of Medicine.
Friday, April 29, 2011 - 14:39
Researchers have proven that melatonin –a natural hormone produced by the body– helps in controlling weight gain –even without reducing the intake of food–, improves blood lipid profile –as it reduces triglicerids–, increases HDL cholesterol and reduces LDL cholesterol.
Friday, April 29, 2011 - 10:28
Stronger and tougher body armor to shield the chest, abdomen and back may be just what soldiers fighting in the Afghanistan and Iraq wars need to better protect their brains from mild injuries tied to so-called “shell shock,” results of a Johns Hopkins study in mice suggests.
Friday, April 29, 2011 - 10:16
Cotinine, a compound derived from tobacco, reduced plaques associated with dementia and prevented memory loss in a mouse model of Alzheimer’s disease, a study led by researchers at Bay Pines VA Healthcare System and the University of South Florida found.
Thursday, April 28, 2011 - 11:27
A new study in rats is shedding light on how sleep-deprived lifestyles might impair functioning without people realizing it. The more rats are sleep-deprived, the more some of their neurons take catnaps — with consequent declines in task performance.
Thursday, April 28, 2011 - 10:36
Gene therapy that uses a tiny benign virus to take a gene to the rods and cones of the eye's retina (the light-sensing organ) prevented blindness in mice with a genetic blinding syndrome, said researchers from Baylor College of Medicine in an online report of the Proceedings of the National Academy of Sciences.
Tuesday, April 26, 2011 - 14:51
Scientists have grown human veins in a laboratory, in a breakthrough that could revolutionise heart bypass surgery The news comes from research in which scientists developed a method for using human muscle tissue to create human blood vessels in the laboratory.
Tuesday, April 26, 2011 - 09:58