Researchers at Johns Hopkins have spotted a strong family trait in two distant relatives: The channels that permit entry of sodium and calcium ions into cells turn out to share similar means for regulating ion intake, they say. Both types of channels are critical to life. Having the right concentrations of sodium and calcium ions in cells enables healthy brain communication, heart contraction and many other processes. The new evidence is likely to aid development of drugs for channel-linked diseases ranging from epilepsy to heart ailments to muscle weakness.
Brain
Imagine feeling a slimy jellyfish, a prickly cactus or map directions on your iPad mini Retina display, because that's where tactile technology is headed. But you'll need more than just an index finger to feel your way around.
The National Institutes of Health has turned to neuroscientists at the nation's most "Stone Cold Sober" university for help finding ways to treat drug and alcohol addiction.
Brigham Young University professor Scott Steffensen and his collaborators have published three new scientific papers that detail the brain mechanisms involved with addictive substances. And the NIH thinks Steffensen's on the right track, as evidenced by a $2-million grant that will help fund projects in his BYU lab for the next five years.
NEW YORK—Jill Abramson was recently ousted from her position as the executive editor of The New York Times for being, among other things, too "pushy." But did Abramson—who has also been described by the media as "polarizing" and "brusque"—know during the course of her tenure that others viewed her as being overly assertive? A new study from the Columbia Business School suggests that there's a great chance she didn't.
Philadelphia, PA, July 1, 2014 – Research suggests that people at increased risk for developing addiction share many of the same neurobiological signatures of people who have already developed addiction. This similarity is to be expected, as individuals with family members who have struggled with addiction are over-represented in the population of addicted people.
LOS ANGELES (June 30, 2014) – When evaluating another person's emotions – happy, sad, angry, afraid – humans take cues from facial expressions. Neurons in a part of the brain called the amygdala "fire" in response to the visual stimulation as information is processed by the retina, the amygdala and a network of interconnected brain structures. Some of these regions respond just to the actual features of the face, whereas others respond to how things appear to the viewer, but it is unknown where in the brain this difference arises.
Researchers at Duke-NUS Graduate Medical School Singapore (Duke-NUS) have found evidence that the less older adults sleep, the faster their brains age. These findings, relevant in the context of Singapore's rapidly ageing society, pave the way for future work on sleep loss and its contribution to cognitive decline, including dementia.
Like humans, fish prefer to group with individuals with whom they are familiar, rather than strangers. This gives numerous benefits including higher growth and survival rates, greater defence against predators and faster social learning. However, high carbon dioxide levels, such as those anticipated by climate change models, may hinder the ability of fish to recognise one another and form groups with familiar individuals.
About seven days after conception, something remarkable occurs in the clump of cells that will eventually become a new human being. They start to specialize. They take on characteristics that begin to hint at their ultimate fate as part of the skin, brain, muscle or any of the roughly 200 cell types that exist in people, and they start to form distinct layers.
Stem cell scientists had what first appeared to be an easy win for regenerative medicine when they discovered mesenchymal stem cells several decades ago. These cells, found in the bone marrow, can give rise to bone, fat, and muscle tissue, and have been used in hundreds of clinical trials for tissue repair. Unfortunately, the results of these trials have been underwhelming. One problem is that these stem cells don't stick around in the body long enough to benefit the patient.
BUFFALO, N.Y. – Scientists at the University at Buffalo have identified the single transcription factor or "master switch" that initiates the critical myelination process in the brain. The research will be published online in Proceedings of the National Academy of Sciences (PNAS) on June 30.
The identification of this factor, SOX10, in human brain cells, brings researchers closer to the goal of treating multiple sclerosis (MS) by transplanting into patients the brain cells that make myelin.
Patients with Alzheimer's disease run a high risk of seizures. While the amyloid-beta protein involved in the development and progression of Alzheimer's seems the most likely cause for this neuronal hyperactivity, how and why this elevated activity takes place hasn't yet been explained – until now.
Researchers at The University of Texas at San Antonio (UTSA) are discovering that the current protective eyewear used by our U.S. armed forces might not be adequate to protect soldiers exposed to explosive blasts.
According to a recent study, ocular injuries now account for 13 percent of all battlefield injuries and are the fourth most common military deployment-related injury.
NEW YORK—Jill Abramson was recently ousted from her position as the executive editor of The New York Times for being, among other things, too "pushy." But did Abramson—who has also been described by the media as "polarizing" and "brusque"—know during the course of her tenure that others viewed her as being overly assertive? A new study from the Columbia Business School suggests that there's a great chance she didn't.
Scientists at Yerkes National Primate Research Center, Emory University have identified a drug that appears to make memories of fearsome events less durable in mice.
The finding may accelerate the development of treatments for preventing PTSD (post-traumatic stress disorder). The drug, called osanetant, targets a distinct group of brain cells in a region of the brain that controls the formation and consolidation of fear memories.
The results were published in the journal Neuron.