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Research Highlights

Impact outcomes for the North

Five years after the inception of Sentinel North's first projects, chairs and joint research units, the 70+ interdisciplinary teams have become a force of scientific impact with concrete benefits for the North.

Check out some of the program's most recent impact achievements below, or view all publications.

 

 

archaea sentinelle nordThanks to genomics, a new type of interaction by which a primitive type of microbe (Archaea) attacks and pierces other microscopic cells has been identified. The article published in ISME Communications by postdoctoral biologist Adrien Vigneron opens the door to new hypotheses in the carbon and energy cycle in aquatic environments.

Answers at the bottom of the Arctic lakes

Under the direction of Warwick Vincent, the study is part of an effort to understand and anticipate changes in northern ecosystems. Drawing on genomics, biochemistry and microbiology, the discovery that originates from some of the northernmost lakes on the planet draws attention to the extreme complexity of processes governing Arctic food webs.

 

amira aker sentinelle nord

By establishing links between exposure to long-chain per- and polyfluoroalkyl compounds (PFAS) and the health of Inuit populations, post-doctoral researcher Amira Aker's work and that of northern communities is supporting Canada's efforts to include these substances on the list of banned products under the Stockholm Convention. Read the full article here.

Why legislate PFAS?

Long-chain PFASs are chemicals that fall into the category of persistent organic pollutants (POPs). They are transported by marine and atmospheric currents and are concentrated in the Arctic, where they are consumed by local populations through traditional food. These substances are associated with various health problems at the cardiometabolic, immune, hormonal and developmental levels.

A Sentinel North Postdoctoral Fellow pursuing her research projects with the Chaire Littoral, Amira is passionate about multidisciplinary research that integrates environmental and social stressors to better understand global health.

 

caroline ménard sentinelle nord

Caroline Menard and her team are paving the way for a revolution in the way depression and mood disorders are detected and treated. Results published in Nature Communications are the first to demonstrate the importance of neurovascular health in depression and to propose a new biomarker for its diagnosis.

Mental Health in the North

The North is undergoing significant socio-economic, cultural and environmental upheaval that is creating a unique form of stress in its populations. A better understanding of the neurobiology related to chronic stress, which is associated with vascular and immune changes, could lead to an innovative therapeutic approach that focuses on resilience and the whole body rather than just the brain.

The Sentinel North Research Chair in the Neurobiology of Stress and Resilience combines several areas of expertise and cutting-edge technologies, notably in optics and photonics, to focus on the interactions between the complex systems of the brain, neurovascular health, the immune system and the gut microbiome.

More research highlights

La tordeuse fait la vie dure au caribou forestier sentinelle nord

The budworm makes life difficult for woodland caribou

A team from Université Laval, the University of Saskatchewan and the University of Montana has shown that the spruce budworm is harming the recovery efforts of woodland caribou in Quebec by increasing their risk of being preyed upon by wolves in ecosystems that have been ravaged by the insect.

Read more on Ulaval Nouvelles (in French)

sentinelle nord leader microbiome

Among leaders in microbiome research

Sentinel North teams stand out for their cutting-edge work on the Arctic environmental microbiome and its impact on human health.

Learn more

design biophilique en arctique

Bioclimatic Design in the Arctic

Master of Architecture students win two awards in the American Institute of Architects' annual competition. This interdisciplinary success combines architecture, computer vision, civil engineering, mechanical engineering, acoustics and plant science.

Read more on Ulaval Nouvelles (in French)

rôle clé des virus dans les écosystèmes arctiques

Key Role of Viruses in Northern Ecosystems

Université Laval researchers specializing in ecology and genomics, along with Anne Jungblut, a researcher at the Natural History Museum in London, have produced the first genomic portrait of cyanobacteria that play a key role in northern ecosystems, using state-of-the-art CRISPR-Cas technology.

Read the full news

interactions santé-envronnement dans le nord

Health-Environment Interactions in the North

Early results from Sentinel North are shedding light on the complex interactions between human health and the environment in the North through convergence research and the development of new approaches and innovative technologies.

View the full infography