A new genetically engineered lab rat that has the full array of brain changes associated with Alzheimer’s disease supports the idea that increases in a molecule called beta-amyloid in the brain causes the disease, according to a study, published in the Journal of Neuroscience. The study was supported by the National Institutes of Health.
Wednesday, April 10, 2013 - 12:01
The treatment Perry's dogs received was developed by MediVet America of Lexington, Ky., one of several companies that sell equipment and training to veterinary clinics around the world. MediVet has more than a thousand clinics. Participating vets have performed more than 10,000 stem cell procedures – about 7,000 of them in the past 12 months.
Monday, April 8, 2013 - 16:18
The need to distinguish between normal cells and tumor cells is a feature that has been long sought for most types of cancer drugs. Tumor antigens, unique proteins on the surface of a tumor, are potential targets for a normal immune response against cancer. Identifying which antigens a patient's tumor cells express is the cornerstone of designing cancer therapy for that individual. But some of these tumor antigens are also expressed on normal cells, inching personalized therapy back to the original problem.
Monday, April 8, 2013 - 11:00
JUST add water and sperm – any romance should be provided separately. In future, women who want to safeguard their fertility may be able to store their eggs at home as a powder. To revive them for an attempt at having a baby, all they would need to do is empty the sachet, add water, fertilise with sperm and implant the embryo. The technique was demonstrated with cow eggs last month at Cryo, a conference on cold-preservation techniques for eggs, sperm and embryos held in Berlin, Germany.
Friday, April 5, 2013 - 09:29
A team of UC Davis scientists has found that a product resulting from a metabolized omega-3 fatty acid helps combat cancer by cutting off the supply of oxygen and nutrients that fuel tumor growth and spread of the disease.
Wednesday, April 3, 2013 - 10:06
Johns Hopkins scientists say they have evidence from animal studies that a type of central nervous system cell other than motor neurons plays a fundamental role in the development of amyotrophic lateral sclerosis (ALS), a fatal degenerative disease. The discovery holds promise, they say, for identifying new targets for interrupting the disease’s progress.
Tuesday, April 2, 2013 - 16:26
Usually, science starts in the lab and then moves to patients. Gastric bypass surgery has taken the opposite path. Originally offered as a radical treatment for severe obesity, the surgery's effects on the digestive system and metabolism have turned out to be far more mysterious and fascinating than anyone expected. Now, a new study probes another of the surgery's effects: its impact on microbes in the gut and how changing these microscopic communities might drive weight loss.
Thursday, March 28, 2013 - 14:48
Researchers are finding new drugs for chronic pain and autoimmune diseases by modifying animal venom-derived molecules that target the nervous and immune systems.
Wednesday, March 27, 2013 - 14:55
Study reveals ‘evolutionary glitch’ as possible cause of common childhood ear infections. Researchers at King’s College London have uncovered how the human ear is formed, giving clues as to why children are susceptible to infections such as glue ear.
Monday, March 25, 2013 - 15:17
The mystery of exactly how consumption of extra virgin olive oil helps reduce the risk of Alzheimer’s disease (AD) may lie in one component of olive oil that helps shuttle the abnormal AD proteins out of the brain, scientists are reporting in a new study. It appears in the journal ACS Chemical Neuroscience.
Thursday, March 21, 2013 - 15:16
Wednesday, March 20, 2013 - 16:16
A mutual curiosity about patterns of growth and development in pig brains has brought two University of Illinois research groups together. Animal scientists Rod Johnson and Ryan Dilger have developed a model of the pig brain that they plan to use to answer important questions about human brain development.
Friday, March 15, 2013 - 14:14
For the first time, scientists have transplanted neural cells derived from a monkey's skin into its brain and watched the cells develop into several types of mature brain cells, according to the authors of a new study in Cell Reports. After six months, the cells looked entirely normal, and were only detectable because they initially were tagged with a fluorescent protein.
Thursday, March 14, 2013 - 15:12
It happens to everyone: You stay up late one night to finish an assignment, and the next day, you’re exhausted. Humans aren’t unique in that; all animals need sleep, and if they don’t get it, they must make it up.
The biological term for that pay-the-piper behavior is “sleep homeostasis,” and now, thanks to a research team at the Perelman School of Medicine, University of Pennsylvania, one of the molecular players in this process has been identified – at least in nematode round worms.
Monday, March 11, 2013 - 15:21
Researchers at Washington University School of Medicine in St. Louis believe they've uncovered a vital step in developing a vaginal gel that may prevent the spread of HIV, which causes AIDS.
Nanoparticles carrying a toxin found in bee venom can destroy human immunodeficiency virus (HIV), while leaving surrounding cells unharmed.
Friday, March 8, 2013 - 14:58
Most people think that veterinarians are doctors who treat cats and dogs, provide compassionate, expert care but also charge amply for their services. This narrow view means that a vet's work is underestimated and, often, not respected. In reality their role is substantially broader and yet their leadership potential is generally overlooked.
While many vets are caregivers for our domestic animals -- and it's very important work -- a larger mission is to focus on minimizing the transmission of infectious disease and help tackle world hunger issues.
Thursday, March 7, 2013 - 10:41
Alligator blood is showing to be a potent antibiotic in lab testing at McNeese State University. These keepers of the bayou are known for their tenacity, but behind the alligator's piercing eyes and sharp teeth is an immune system that is as ferocious as the primitive creature.
Tuesday, March 5, 2013 - 15:45
Scientists may be better able to study how heavy drinking damages the liver using a new mouse model of alcohol drinking and disease developed by researchers from the National Institute on Alcohol Abuse and Alcoholism (NIAAA), part of the National Institutes of Health. The model incorporates chronic and binge drinking patterns to more closely approximate alcoholic liver disease in humans than any existing method. A report of the new model appears in the March issue of the journal Nature Protocols.
Thursday, February 28, 2013 - 15:27
New research from the Oklahoma Medical Research Foundation shows that eating a high-fat diet produces a similar effect to starvation in cells and could be key in understanding why cells “flip the switch” to burn fat instead of sugar in the early stages of diabetes.
Wednesday, February 27, 2013 - 09:58
Mollie Heinz had two surgeries to remove parts of her bowel due to flareups of Crohn’s disease.
Even so, the 37-year-old mother from Maryland Heights isn’t so hot about the idea of ingesting the eggs of pig whipworms to treat the condition. The eggs, it seems, might be the latest icky way to treat a bacterial balance gone bad in the human gut.
Friday, February 22, 2013 - 13:41