Life Sciences

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Life Sciences - Health - 22.03.2023
How the brain’s ’internal compass’ works
Scientists have gained new insights into the part of the brain that gives us a sense of direction, by tracking neural activity with the latest advances in brain imaging techniques. The findings shed light on how the brain orients itself in changing environments - and even the processes that can go wrong with degenerative diseases like dementia, that leave people feeling lost and confused.

Health - Life Sciences - 20.03.2023
Co-infection with 'superbug' bacteria increases SARS-CoV-2 replication 
Co-infection with ’superbug’ bacteria increases SARS-CoV-2 replication 
Western study finds co-infection with 'superbug' bacteria increases SARS-CoV-2 replication  The study identifies a common protein from the Staphylococcus aureus bacteria boosts SARS-CoV-2 replication up to 15 times  By Prabhjot Sohal , March 20, 2023 By Prabhjot Sohal , March 20, 2023 Global data shows nearly 10 per cent of severe COVID-19 cases involve a secondary bacterial co-infection – with Staphylococcus aureus, also known as Staph A.

Environment - Life Sciences - 17.03.2023
Historic logging contributes to water temperature increases for salmon
Historic logging contributes to water temperature increases for salmon
A collaborative study between researchers at Simon Fraser University and Fisheries and Oceans Canada (DFO) has found that high logging intensity in the Interior watersheds of British Columbia is associated with warmer stream temperatures in salmon-bearing streams, potentially contributing to increased heat stress in salmon.

Life Sciences - 16.03.2023
New study identifies how AI fails to reproduce human vision
New study identifies how AI fails to reproduce human vision
Despite the power of deep learning, computers have yet to master human calculations when it comes to visual recognition By Jeff Renaud , March 16, 2023 By Jeff Renaud , March 16, 2023 When a human spots a familiar face or an oncoming vehicle, it takes the brain a mere 100 milliseconds (about one-tenth of a second) to identify it and more importantly, place it in the right context so it can be understood, and the individual can react accordingly.

Health - Life Sciences - 16.03.2023
Colorectal cancer and E. coli: new insights
UdeM researchers have found that a lot of healthy people have a gut bacteria implicated in colorectal cancer, and that a popular supplement for promoting digestive health may have the opposite effect. In Quebec, colorectal cancer is the second leading cause of cancer deaths in men and the third in women.

Life Sciences - Health - 14.03.2023
Genes shed light on why men and women experience different depression symptoms
Genes shed light on why men and women experience different depression symptoms
Depression is widely reported to be more common in women than in men, with women twice as likely to receive a diagnosis than men. A new sex-specific study from McGill University has found that there are differences between male and female genes and how they relate to depression. In a study of more than 270,000 individuals, the researchers found that sex-specific prediction methods were more accurate in forecasting an individual's genetic risk of developing depression than prediction methods that did not specify sex.

Life Sciences - 09.03.2023
Alcohol during pregnancy: drinking too much in the first week is risky
But consuming foods rich in nutrients could counteract some of the negative effects, according to a new Canadian study. CONTENU Serge McGraw, chercheur en épigénétique et spécialiste en biologie de la reproduction au CHU Sainte-Justine Credit: CHU Sainte-Justine Excessive alcohol consumption in the first week of pregnancy poses risks to the unborn child - but having a healthy diet rich in nutrients such as folic acid, vitamin B12, choline and betaine could reduce some of its effects, a new Canadian study reveals.

Health - Life Sciences - 23.02.2023
Genes reveal kidney cancer's risk of recurrence
Genes reveal kidney cancer’s risk of recurrence
DNA sequencing may provide a more effective way to predict a patient's risk of kidney cancer recurrence and could one day lead to more personalized treatment Studying the mutations in kidney cancer after surgery could help to better predict the risk of the disease coming back, according to the latest results of a decade-long international study.

Life Sciences - 16.02.2023
A giant step forward in understanding autism
Researchers at the CHU Sainte-Justine Research Centre show that in Fragile X syndrome, the most common cause of autism, sensory signals from the outside world are underrepresented by cortical pyramida Roberto Araya That's the conclusion of a new study by a team led by Université de Montréal neurosciences professor Roberto Araya, a biophysicist and researcher at the UdeM-affiliated CHU Sainte-Justine Research Centre.

Life Sciences - Psychology - 15.02.2023
Is the brain wired differently in people with addictions?
A meta-analysis of neuroimaging studies by Stéphane Potvin points to neurobiological deficits in people with substance abuse problems. CONTENU - Some 10 to 15 per cent of people will have a substance abuse problem at some point in their life, making it one of the most common psychiatric disorders.

Chemistry - Life Sciences - 09.02.2023
Chemists create nanomachines by breaking them apart
Chemists create nanomachines by breaking them apart
Some "broken" nanomachines better sense their environment while others gain the ability to control their activity over time, researchers at Université de Montréal find. CONTENU - "Every act of creation," Picasso famously noted, "is first an act of destruction." Taking this concept literally, researchers in Canada have now discovered that "breaking" molecular nanomachines basic to life can create new ones that work even better.

Life Sciences - Health - 07.02.2023
New research tool tackles deadly mosquito-borne diseases  
New research tool tackles deadly mosquito-borne diseases  
For most people living in Canada, mosquitoes are nothing more than a summertime nuisance, intruding on nights at the cottage and evenings around the campfire. But for millions of people around the world, particularly in the Global South, they are a serious and potentially fatal threat.

Life Sciences - 03.02.2023
A new understanding of reptile colouration
A new understanding of reptile colouration
Snakes and mice don't look alike. But much of what we know about skin colouration and patterning in vertebrates generally, including in snakes, is based on lab mice. However, there are limits to what mice can tell us about other vertebrates because they don't share all of the same types of colour-producing cells, known as chromatophores.

Life Sciences - Health - 02.02.2023
Researchers explore gene therapy model using zinc finger proteins
Researchers explore gene therapy model using zinc finger proteins
Researchers at the University of Toronto and New York University have developed a novel technology that can engineer proteins to target any stretch of DNA in the human genome, opening a door to gene therapies for a broader range of health conditions.

Health - Life Sciences - 01.02.2023
New EEG procedure accurately measures distress caused by tinnitus
New EEG procedure accurately measures distress caused by tinnitus
Researchers discover new way to understand and diagnose patients experiencing ringing in the ears. While it's especially common in older adults, tinnitus - a potentially devastating ringing in the ears - can affect people of all ages. Most often described as consistent buzzing, hissing or humming, tinnitus is usually caused by an underlying condition, like age-related hearing loss, an ear injury or heart disease and affects approximately one in five people in North America.

Health - Life Sciences - 31.01.2023
Colorectal cancer surgery: gut microbiota helps healing
In a promising study, Canadian researchers have shown for the first time in mice that modifying intestinal flora before surgery could reduce postoperative complications in colorectal cancer patients. CONTENU - Published in the journal Gut, the study by scientists at the CHUM Research Centre (CRCHUM) in Montreal identified two bacterial strains that directly affect whether or not anastomotic leakage, more commonly known as intestinal leakage, occurs.

Health - Life Sciences - 31.01.2023
Obesity-related neurodegeneration mimics Alzheimer's disease
Obesity-related neurodegeneration mimics Alzheimer’s disease
Thinning in the right temporo-parietal cortex and left prefrontal cortex were similar in both groups A new study led by scientists at The Neuro (Montreal Neurological Institute-Hospital) of McGill University finds a correlation between neurodegeneration in obese people and Alzheimer's disease (AD) patients.

Life Sciences - 27.01.2023
Moths are the new tool to protect Canada’s wetlands
Waterloo biologists are leading the North American pilot program examining insect-based biocontrol of Phragmites. By Katharine Tuerke Faculty of Science University of Waterloo biologists, in partnership with Agriculture and Agri-Food Canada and the University of Toronto, are leading a North American pilot program that uses moths as a management tool to control an invasive plant threatening Canadian wetlands.

Life Sciences - Environment - 25.01.2023
What crocodile DNA reveals about the Ice Age
What crocodile DNA reveals about the Ice Age
Environmental drivers such as sea level affect genetic evolution and point to where conservation efforts may be focused What drives crocodile evolution? Is climate a major factor or changes in sea levels? Determined to find answers to these questions, researchers from McGill University discovered that while changing temperatures and rainfall had little impact on the crocodiles- gene flow over the past three million years, changes to sea levels during the Ice Age had a different effect.

Health - Life Sciences - 19.01.2023
Better understanding cancer and heart disease
A Canadian-led team of researchers finally identifies the molecular mechanism by which a key protein regulates LDL cholesterol. CONTENU Nabil G. Seidah Credit: IRCM In a crucial step towards understanding the mechanisms involved in cardiovascular disease and certain cancers, a Canadian led research team has succeeded in a world first: they've found the molecular mechanism by which the protein PCSK9 degrades the receptor of low density lipoproteins, the richest cholesterol particles in the bloodstream.
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