Tampa, Fla. (December 28, 2009) – Researchers from the University of Hong Kong and the Massachusetts Institute of Technology have published a study in the current issue of Cell Transplantation (18:9)that explores ways to successfully keep stem cells "forever young" during implantation by slowing their growth, differentiation and proliferation.
Brain
LA JOLLA, CA—Like a spotlight that illuminates an otherwise dark scene, attention brings to mind specific details of our environment while shutting others out. A new study by researchers at the Salk Institute for Biological Studies shows that the superior colliculus, a brain structure that primarily had been known for its role in the control of eye and head movements, is crucial for moving the mind's spotlight.
DALLAS – Dec. 28, 2009 – The premise that hunger makes food look more appealing is a widely held belief – just ask those who cruise grocery store aisles on an empty stomach, only to go home with a full basket and an empty wallet.
Bainbridge Island, WA. December 28, 2009. Emerald BioStructures (formerly deCODE biostructures) announced today a publication in the December 27, 2009 advance online issue of Nature Biotechnology, detailing the application of structure-based drug design (SBDD) to engineer new allosteric small molecule modulators of the enzyme phosphodiesterase-4 (PDE4), with reduced side effects. According to the paper, the researchers established the structural basis of PDE4 regulation through crystal structures of the PDE4 regulatory domain in contact with small molecules.
CLEVELAND – December 27, 2009 –Ben W. Strowbridge, PhD, associate professor of neuroscience and physiology/biophysics, and Phillip Larimer, PhD, a MD/PhD student in the neurosciences graduate program at Case Western Reserve University School of Medicine, are the first to create stimulus-specific sustained activity patterns in brain circuits maintained in vitro.
When a person walks a ladder or perhaps a series of stepping stones, they rely on their vision to find each and every foothold. A new report published online on December 24th in Current Biology, a Cell Press publication, shows that locusts do something very similar. It's yet another piece of evidence showing that when it comes to brains, size isn't everything, according to the researchers.
Scientists have shown for the first time that insects, like mammals, use vision rather than touch to find footholds. They made the discovery thanks to high-speed video cameras – technology the BBC uses to capture its stunning wildlife footage – that they used to film desert locusts stepping along the rungs of a miniature ladder.
The study sheds new light on insects' ability to perform complex tasks, such as visually-guided limb control, usually associated with mammals.
NEW YORK – A team of Columbia scientists have discovered two genes that, when simultaneously activated, are responsible for the most aggressive forms of human brain cancer.
This finding was made possible by the assembly of the first comprehensive network of molecular interactions that determine the behavior of these cancer cells, a map so complex and elusive that, until now, it could not be constructed. The discovery may lead to completely novel strategies to diagnose and treat these incurable tumors.
Scientists have identified a key molecular switch that may drive the onset of Huntington's disease (HD), an incurable neurodegenerative disorder that leads to severe disruptions in muscle coordination and cognitive function. The research, published by Cell Press in the December 24 issue of the journal Neuron, enhances the understanding of HD pathogenesis and may direct new strategies for treating this devastating brain disease.
(Santa Barbara, Calif.) –– Scientists at UC Santa Barbara have made a major discovery in how the brain encodes memories. The finding, published in the December 24 issue of the journal Neuron, could eventually lead to the development of new drugs to aid memory.
The team of scientists is the first to uncover a central process in encoding memories that occurs at the level of the synapse, where neurons connect with each other.
Many brain training products claim to be able to keep us mentally fit. Some products even claim that brain training can prevent dementia in old age. But there is no scientific proof that games or other brain exercises can have this effect. That is what the German Institute for Quality and Efficiency in Health Care (IQWiG) pointed out in information published on informedhealthonline.org today.
When New Year's Eve rolls around and you're deciding whether to have another glass of champagne, your decision may be predicted by your perspective of the future.
A pair of Kansas State University researchers found that people who tend to think in the long term are more likely to make positive decisions about their health, whether it's how much they drink, what they eat, or their decision to wear sunscreen.
Landing is tricky: hit the ground too fast and you will crash and burn; too slow and you may stall and fall. Bees manage their approach by monitoring the speed of images moving across their eyes. By slowing so that the speed of the looming landing pad's image on the retina remains constant, bees manage to control their approach. But what happens in the final few moments before touch down? And how do bees adapt to landing on surfaces ranging from the horizontal to upside-down ceilings?
A study conducted at Scott & White Healthcare in Temple, Texas, found that a new drug stopped the growth of breast tumors in mice. This drug is unique in that it works both by stopping the cancer cells from growing and metastasizing to other organs, and by stimulating the immune system to destroy breast cancer cells and keeps them from coming back. This is the only drug that's able to work in both ways, while all other treatments work in one way or another.
Headaches and heartaches. Broken bones and broken spirits. Hurting bodies and hurt feelings. We often use the same words to describe physical and mental pain. Over-the-counter pain relieving drugs have long been used to alleviate physical pain, while a host of other medications have been employed in the treatment of depression and anxiety. But is it possible that a common painkiller could serve double duty, easing not just the physical pains of sore joints and headaches, but also the pain of social rejection? A research team led by psychologist C.