Life Sciences

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Health - Life Sciences - 20.02.2024
Researchers are using RNA in a new approach to fight HIV
Society learned about the value of mRNA during the COVID-19 pandemic when we saw scientists and medical professionals harness its power to deliver a vaccine for the virus within a year. Now, University of Waterloo pharmacy associate professor Emmanuel Ho has developed a novel nanomedicine loaded with genetic material called small interfering RNAs (siRNA) to fight human immunodeficiency virus (HIV) using gene therapy.

Life Sciences - Health - 19.02.2024
How the brain develops in unborn babies
An UdeM-led study reveals the combined effect of genetics and food availability, and points the way forward to promoting cortical growth after birth in small babies. Postdoctoral fellow Daniel Vosberg and CHU Sainte-Justine researcher and Université de Montréal medical professor Tomas Paus Credit: Véronique Lavoie, CHU Sainte-Justine A new population-based study led by CHU Sainte-Justine researcher and Université de Montréal medical professor Tomas Paus reveals the roles of maternal and fetal genes in the growth of a baby's cerebral cortex.

Health - Life Sciences - 19.02.2024
Stress is higher for women in long-term relationships
Stress is higher for women in long-term relationships
In long-time couples, women are more affected than men by the cumulative effects of stress as measured by the physiological indicator known as allostatic load, a U.S.-Canada study suggests. The chronic stress that builds up over decades in a relationship affects each member of the couple differently; in heterosexual couples, the woman is more likely to display negative physiological markers than her spouse.

Health - Life Sciences - 14.02.2024
A 'heart on a chip'
A ’heart on a chip’
Developed in Montreal, the device - a 3D-bioprinted, miniaturized chip - promises to advance understanding of cardiovascular disease and aid in the development of new precision treatments. Scientists at the Centre de recherche Azrieli du CHU Sainte-Justine, affiliated with Université de Montreal, have developed a device that accurately simulates the electrical activity, mechanics and physiology of a human heart.

Health - Life Sciences - 13.02.2024
New understanding of avian eggshell attachment
Athletes often suffer injuries to ligaments in their knee s, particularly to the anterior cruciate ligament or ACL. W hile surgery to replace these torn ligaments is becoming increasingly common around the world it often needs to be re peated. That's because it has proved challenging to anchor fibrous, soft and wet ligament grafting material into hard bone.

Life Sciences - Health - 09.02.2024
Making AI a partner in neuroscientific discovery
New paper argues that Large Language Models can reveal breakthroughs humans alone cannot The past year has seen major advances in Large Language Models (LLMs) such as ChatGPT. The ability of these models to interpret and produce human text sources (and other sequence data) has implications for people in many areas of human activity.

Chemistry - Life Sciences - 07.02.2024
How life appeared: rise of the nanomachines
Chemists at UdeM explain how molecular systems at the origin of life may have evolved, a development that could lead to new and improved nanosystems. By attaching molecules together, scientists at Université de Montréal think they've found how molecular systems at the origin of life evolved to create complex self-regulating functions.

Life Sciences - Health - 07.02.2024
Results for: UCalgary researcher develops new tool to diagnose genetic mutations
Results for: UCalgary researcher develops new tool to diagnose genetic mutations
Dr. Pierre Billon, PhD, was frustrated with the time it took to get genetic analysis done at specialized private labs. Results of DNA samples that he needed for his research weren't available for weeks and sometimes months. Outsourcing to genome facilities was also expensive. Billon was convinced there was another approach that could provide results faster and in a more cost-effective way.

Life Sciences - 30.01.2024
Some Canadians may still be at risk of Genetic Discrimination despite new federal law
McGill study finds that some Canadians may still be at risk of Genetic Discrimination despite new federal law New study from the Centre of Genomics and Policy examines the impact of the 2017 Genetic Non-Discrimination Act on life insurance practices and finds that the law falls short on protecting Canadians against Genetic Discrimination.

Life Sciences - Health - 29.01.2024
Can ’coloured noise’ really improve our sleep?
In the never-ending quest for a good night's sleep, the use of white, brown or pink noise is the latest thing. Solution or illusion? One in four people suffer from some kind of sleep disorder-insomnia, sleep apnea, narcolepsy, hypersomnia, restless legs syndrome. And for a quarter of them, there is no effective, long-term solution.

Health - Life Sciences - 26.01.2024
Endangered fish can live longer after cataract surgery
According to a study led by UdeM veterinarian Claire Vergneau-Grosset, cataract operations can help fish survive and not get sick or die from lack of food they cannot see. Humans aren't the only species to develop cataracts with age. Some animals, including dogs, cats, horses and, it turns out, fish living in captivity, can also get cataracts as they grow older.

Life Sciences - Health - 24.01.2024
Tiny hitchhikers: scientists uncover new ’mini-satellites’ in sea bacteria
In an unseen process playing out in the deep, miniature elements of DNA are quietly outsmarting viruses. Microbiologists led by Université de Montréal biologist Frédérique Le Roux have made an underwater breakthrough, discovering what they're calling "mini satellites" in sea bacteria. These tiny genetic elements, known as phage-inducible chromosomal minimalist islands (PICMIs), are changing the way scientists think about life in the ocean.

Life Sciences - Health - 23.01.2024
A neurological disease paradigm shift
Researchers propose a new model for classifying Parkinson's One of the things that makes developing effective treatments for Parkinson's disease so challenging is its complexity. While some forms are caused by genetics, others have environmental factors, and patients can show a wide range of symptoms of varying severity.

Environment - Life Sciences - 22.01.2024
Bioretention plants not impaired by road salt
Bioretention plants not impaired by road salt
The salt used to de-ice our roads does not reduce the effectiveness of the plants used in bioretention areas, according to a new study by Henry Beral, a Ph.D. candidate at UdeM. Increasing numbers of municipalities across Quebec are building bioretention areas to manage storm runoff. These areas serve two important functions.

Agronomy / Food Science - Life Sciences - 18.01.2024
Counter the loss of organic soil with straw and wood shavings
Counter the loss of organic soil with straw and wood shavings
Karolane Bourdon, a doctoral student at Université Laval's Faculty of Agricultural and Food Sciences, shows that the application of straw or wood shavings could regenerate soils and restore their yield . Half of the field vegetable sector's sales come from production in organic soils, but if these are not protected from degradation, they could disappear within 50 years.

Life Sciences - Health - 10.01.2024
Stuck in traffic: Researchers identify cellular traffic jams in a rare disease
Researchers from McGill University, led by Professor Alanna Watt of the Department of Biology, have identified previously unknown changes in brain cells affected by a neurological disease. Their , published in eLife, could pave the way to future treatments for the disease. Spinocerebellar ataxia type 6, known as SCA6, is a rare neurological disease that disrupts the function in a part of the brain called the cerebellum, causing difficulties with movement and coordination.

Life Sciences - Environment - 09.01.2024
New dimension of the genome discovered
Distantly related organisms that live in extreme temperatures and pH conditions develop similar DNA It has long been thought that an organism's DNA provides clues only about its ancestry and how the various forms of life on Earth are related - the more similar their DNA, the more closely the species are related.

Life Sciences - 08.01.2024
How does one species become many?
Using data on four species of Darwin's finches on the Galápagos Islands, researchers led by McGill University confirm a long-standing hypothesis that species diversity evolves through adaptation to different resources. Evolutionary biologists have long suspected that the diversification of a single species into multiple descendent species - that is, an "adaptive radiation" - is the result of each species adapting to a different environment.

Health - Life Sciences - 20.12.2023
New study sheds light on connection between microbiome and kidney stones
New study sheds light on connection between microbiome and kidney stones
A new study from Western University and Lawson Health Research Institute published in the journal Microbiome has found changes in the microbiome in multiple locations in the body are linked to the formation of kidney stones. The human microbiome comprises trillions of microorganisms, including healthy bacteria.

Environment - Life Sciences - 19.12.2023
Toxic chemicals found in oil spills and wildfire smoke detected in killer whales
Toxic chemicals found in oil spills and wildfire smoke detected in killer whales
Toxic chemicals produced from oil emissions and wildfire smoke have been found in muscle and liver samples from Southern Resident killer whales and Bigg's killer whales. A study published today in Scientific Reports is the first to find polycyclic aromatic hydrocarbons (PAHs) in orcas off the coast of B.C., as well as in utero transfer of the chemicals from mother to fetus.
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