New research could provide clinicians with insights regarding clinical progression to dementia
Doctors who work with individuals at risk of developing dementia have long suspected that patients who do not realize they experience memory problems are at greater risk of seeing their condition worsen in a short time frame, a suspicion that now has been confirmed by a team of McGill University clinician scientists. Continue reading
Concussion affects the developing adolescent brain and may delay key cognitive processes, hampering the brain’s ability to change focus and pay attention. New research from Dr. Naznin Virji-Babul’s team, published today in the journal ASN Neuro, shows that concussion changes the way that different neural networks interact, stalling the brain in a state of cognitive inflexibility.
Even at rest, the brain is continuously active, processing and exchanging information. This active interaction between different parts of the brain is necessary for a person to be aware of her surroundings, or to be able to focus on his work or switch between tasks. Continue reading
For the past three years, Dr. Terrance Snutch and research associate Dr. John Tyson have been working with Oxford Nanopore Technologies (ONT) to develop a novel deoxyribonucleic acid (DNA) sequencing tool with promising implications for personalized medicine. About the size of a mobile phone, the MinION device is a USB-powered DNA sequencer capable of mapping complex genomic structures; with it, researchers were recently able to assemble a complete human genome using reads hundreds of times larger than has previously been possible with conventional methods. Continue reading
Research from the IRCM contributes to our understanding of how our brain locates painful stimuli
When you experience a painful sensation such as touching a hot stove with your hand, the pain is restricted to your hand, allowing you to remove it quickly from the source of heat. How does the brain know that the pain is indeed coming from your hand and not from anywhere else on your body? Work recently published by Montreal Clinical Research Institute (IRCM) researchers help clarifying this question. Continue reading
University of Calgary research study benefits people with severe essential tremor
Elias Pharaon is 85 years old and can sign his name for the first time in five years thanks to a new way to do brain surgery. Performed by a team of University of Calgary physicians and researchers with the Hotchkiss Brain Institute, magnetic resonance guided focused ultrasound (MRgFUS) is a new technology that allows surgeons to access the brain without cutting the skin or drilling into the skull. Continue reading
Pimozide, known for treating certain psychiatric conditions, may stabilize progression of the disease. The University of Calgary’s Lawrence Korngut is leading a clinical trial with nine hospital centres across Canada to recruit patients for further study.
If you took part in the ALS Ice Bucket Challenge, you may have wondered where the money raised by the millions of people who poured buckets of ice water over their heads went. Some of those funds are being invested in a University of Calgary research study investigating a potential drug treatment for amyotrophic lateral sclerosis (ALS) patients. Continue reading
UCalgary researchers discover stress isn’t just contagious; it alters the brain on a cellular level
In a new study in Nature Neuroscience, Jaideep Bains, PhD, and his team at the Cumming School of Medicine’s Hotchkiss Brain Institute (HBI), at the University of Calgary have discovered that stress transmitted from others can change the brain in the same way as a real stress does. The study, in mice, also shows that the effects of stress on the brain are reversed in female mice following a social interaction. This was not true for male mice.
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Treating people affected by Parkinson’s disease by grafting healthy neurons is an attractive idea which has not yet given the anticipated results up until now. Even if grafted neurons survive, they are not able to recreate the dopaminergic neuron circuits that are essential for normal brain function. An international team led by Martin Lévesque, professor at Université Laval and researcher at the CERVO Brain Research Centre, might have figured out why. In a recent edition of Nature Communications, the researchers propose a “recipe” to produce neurons that could reconstitute the neuron circuits that are destroyed by Parkinson’s disease. Continue reading
A study by a group of researchers led by Alain Dagher from The Montreal Neurological Institute and Hospital of McGill University has tested the theory that brain degeneration in Parkinson’s disease (PD) originates in subcortical regions and spreads along neural networks to the cerebral cortex. By analyzing data on PD patients and healthy controls collected over one year, the researchers found that brain regions closely connected to subcortical regions showed the most degeneration over the one-year period in PD patients, and that this happens earlier than previously thought. Continue reading
A discovery by Hideto Takahashi and his team paves the way for a better understanding of the mechanisms of neuropsychiatric disorders.
Did you know? Your body is made up of a hundred billion nerve cells that, like small computers, receive, process and deliver crucial information to your body. These machines are your neurons. They form the very foundation of your nervous system. It is through them that your brain converts the data transmitted by your retina into images and that your mood adapts to the situations you are living. Continue reading