Brain

Researchers from the University of Sheffield have found vital new evidence on how to target and reverse the effects caused by one of the most common genetic causes of Parkinson's.

Mutations in a gene called LRRK2 carry a well-established risk for Parkinson's disease, however the basis for this link is unclear.

It seems logical that a student who is interested in science as an academic subject would also know a lot about science, but new findings show that this link depends on the overall wealth of the country that the teen calls home. The research suggests that individual science achievement may be influenced as much by broad national-level resources as it is by personal interest and motivation.

A fly's sense of smell could be used in new technology to detect drugs and bombs, new University of Sussex research has found.

Brain scientist Professor Thomas Nowotny was surprised to find that the 'nose' of fruit flies can identify odours from illicit drugs and explosive substances almost as accurately as wine odour, which the insects are naturally attracted to because it smells like their favourite food, fermenting fruit.

ATHENS, Ohio (Oct. 14, 2014)—It's been millions of years since T. rex took its last breath, but a team led by Ohio University scientists is breathing life back into dinosaurs using high-powered computer simulations to model airflow through dinosaur snouts. The research has important implications for how dinosaurs used their noses to not only breathe but to enhance the sense of smell and cool their brains.

Philadelphia, PA, October 14, 2014 – Over the past decades, we have seen numerous tragic examples where the failure of institutions to meet the needs of infants for social contact and stimulation has led to the failure of these infants to thrive.

DURHAM, N.C. -- Researchers have known for decades that stress contributes to heart disease. But a new analysis by researchers at Duke Medicine shows mental stress may tax women's hearts more than men's.

The research appears online Oct. 13, 2014, in the Journal of the American College of Cardiology.

HOUSTON, Oct. 13, 2014 – According to a pair of University of Houston (UH) professors and their Italian colleague, while science is increasingly moving in the direction of teamwork and interdisciplinary research, changes need to be made in academia to allow for a more collaborative model to flourish.

Putnam Valley, NY. (Oct. 13, 2014) – Two studies recently published in Cell Transplantation reveal that cell transplantation may be an effective treatment for spinal cord injury (SCI), a major cause of disability and paralysis with no current restorative therapies.

Researchers at the University of Calgary's Hotchkiss Brain Institute (HBI) and Southern Alberta Cancer Research Institute (SACRI) have made a discovery that could prolong the life of people living with glioblastoma – the most aggressive type of brain cancer. Samuel Weiss, PhD, Professor and Director of the HBI, and Research Assistant Professor Artee Luchman, PhD, and colleagues, published their work today in Clinical Cancer Research, which is leading researchers to start a human phase I/II clinical trial as early as Spring 2015.

Parkinson's disease is strongly linked to the degeneration of the brain's movement center. In the last decade, the question of where the disease begins has led researchers to a different part of the human anatomy. In 2003, the German neuropathologist Heiko Braak presented a theory suggesting that the disease begins in the gut and spreads to the brain. The idea has since, despite vocal critics, gained a lot of ground. Researchers at Lund University in Sweden now present the first direct evidence that the disease can actually migrate from the gut to the brain.

For decades, scientists thought that neurons in the brain were born only during the early development period and could not be replenished. More recently, however, they discovered cells with the ability to divide and turn into new neurons in specific brain regions. The function of these neuroprogenitor cells remains an intense area of research. Scientists at the National Institutes of Health (NIH) report that newly formed brain cells in the mouse olfactory system — the area that processes smells — play a critical role in maintaining proper connections.

Scientists have created a drug for type 2 diabetes that is switched on by blue light, which they hope will improve treatment of the disease.

Diabetes drugs that promote the release of insulin from the pancreas can in some cases cause side effects due to their actions on other organs such as the brain and heart. Some can also stimulate too much insulin release, causing blood sugar levels to drop too low.

Scientists at the IRCM and the University of Montreal discovered a mechanism that promotes the progression of medulloblastoma, the most common brain tumour found in children. The team, led by Frédéric Charron, PhD, found that a protein known as Sonic Hedgehog induces DNA damage, which causes the cancer to develop. This important breakthrough will be published in the October 13 issue of the prestigious scientific journal Developmental Cell. The editors also selected the article to be featured on the journal's cover.

An innovative laboratory culture system has succeeded, for the first time, in reproducing the full course of events underlying the development of Alzheimer's disease. Using the system they developed, investigators from the Genetics and Aging Research Unit at Massachusetts General Hospital (MGH) now provide the first clear evidence supporting the hypothesis that deposition of beta-amyloid plaques in the brain is the first step in a cascade leading to the devastating neurodegenerative disease.

Stanford engineers have invented a wireless pressure sensor that has already been used to measure brain pressure in lab mice with brain injuries.

The underlying technology has such broad potential that it could one day be used to create skin-like materials that can sense pressure, leading to prosthetic devices with the electronic equivalent of a sense of touch.

A nine-member research team led by Chemical Engineering Professor Zhenan Bao detailed two medical applications of this technology in Nature Communications.