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A Bacteroides synthetic biology toolkit to build an in vivo malabsorption biosensor

Author(s): McCallum G; Burckhardt JC; He J; Hong A; Potvin-Trottier L; Tropini C;

The human gut is a dynamic environment, where changes in pH, oxygen, and osmolality influence microbiota composition and disease. Monitoring these environmental shifts is crucial for advancing gut health diagnostics and therapeutics, yet non-invasive monitoring tools remain limited. Genetically tractable commensals, including Bacteroides thetaiotaomicron, ...

Article GUID: 41610848


Impact of COVID-19 on incidence and trends of adverse events among hospitalised patients in Calgary, Canada: a retrospective chart review study

Author(s): Wu G; Eastwood CA; Cheligeer C; Southern DA; Zeng Y; Ghali WA; Bakal JA; Boussat B; Flemons W; Forster A; Xu Y; Quan H;

Background: While the incidence of hospital adverse events appeared to be declining before 2019, the COVID-19 pandemic may have changed its course. This study aimed to evaluate adverse event incidence rates and trends during the pandemic and analyse differences in patient outcomes. Methods: This ...

Article GUID: 41592994


Organic chemicals of Arctic concern in Russian coastal seas

Author(s): Min XZ; Zhang X; Xie ZY; Nikolaev A; Vorkamp K; Ma JM; Reiersen LO; Li L; Cai MH; Ren NQ; Li YF; Zhang ZF; Kallenborn R; Muir D;

Arctic ecosystems face significant threats from chemicals of global concern. Persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs) have been consistently detected in the Arctic through decades of monitoring. POPs are known to bioaccumulate in food webs, and both POPs an ...

Article GUID: 41571477


Divergent creativity in humans and large language models

Author(s): Bellemare-Pepin A; Lespinasse F; Thölke P; Harel Y; Mathewson K; Olson JA; Bengio Y; Jerbi K;

The recent surge of Large Language Models (LLMs) has led to claims that they are approaching a level of creativity akin to human capabilities. This idea has sparked a blend of excitement and apprehension. However, a critical piece that has been missing in this discourse is a systematic evaluation ...

Article GUID: 41565675


5 weeks of online resistance training with blood flow restriction increases sit-to-stand oxygen consumption in healthy older adults

Author(s): Presta D; Bergdahl A;

Maximal oxygen consumption (VO2 max) reflects the greatest amount of oxygen utilized upon exertion. Blood flow restriction (BFR) limits venous return, enabling low-intensity exercise to yield adaptations like high-intensity training. This study examined whether 5 weeks of online resistance training (RT) with BFR straps improves VO2, tidal volume, and resp ...

Article GUID: 41565628


Genetic dissection of stool frequency implicates vitamin B1 metabolism and other actionable pathways in the modulation of gut motility

Author(s): Díaz-Muñoz C; Bozzarelli I; Lopera-Maya EA; Belbasis L; Lo Faro V; Camargo Tavares L; Heredia-Fernández F; Di Lorenzo B; Sinha T; Esteban Blanco C; Favé MJ; Awadalla P; Walters RG; Bonfiglio F; Zhernakova A; Sanna S; D' Amato M;

Background: Genetic studies of stool frequency (SF), an indirect proxy for gastrointestinal transit, may reveal therapeutically tractable pathways relevant to IBS and other dysmotility disorders. Objective: To identify genes and mechanisms involved in gut motility, providing a foundation for cli ...

Article GUID: 41558814


Scientists warning: we must change paradigm for a revolution in toxicology and world food supply

Author(s): Seralini GE; Jungers G; Andersen A; Antoniou M; Aschner M; Bacon MH; Bertrand M; Bohn T; Bonfleur ML; Bücking E; Defarge N; Djemil R; Domingo JL; Douzelet J; Fagan J; Fournier T; Garcia JLY; Gil S; Hervé-Gruyer P; Hilbeck A; Hilty L; Hub ...

We propose a new paradigm, as toxicology currently lacks the proper perspective. From the 1950s to the 1970s, at least one-third of all toxicological testing in the United States, including for chemicals and drugs, was misleading scientists, and this worldwide issue persists today. Moreover, petr ...

Article GUID: 41551494


The effect of 14 days Actovegin administration with or without high intensity training on exercise capacity and skeletal muscle mitochondrial respiration

Author(s): Hassø RK; Lindtofte S; Kosik B; Bergdahl A; Larsen S;

Article GUID: 41553522


Assessing the performance of a surface washing agent for oil removal from sand in cold environments

Author(s): Sui J; Bi H; Yue R; Fu H; Yang A; An C;

Persistent oil contamination along coastlines can be treated by surface washing agents (SWAs), while low-temperature conditions can significantly impact the effectiveness of SWAs in oil removal. This study investigates the oil removal performance of a commercial SWA for oiled shoreline sand in cold-region environments. Batch oil removal tests were conduct ...

Article GUID: 41544565


Greater cardiorespiratory fitness is associated with higher cerebral blood flow and lower oxygen extraction fraction in healthy older adults

Author(s): Sanami S; Rezaei A; Tremblay SA; Potvin-Jutras Z; Sabra D; Intzandt B; Gagnon C; Mainville-Berthiaume A; Wright L; Gayda M; Iglesies-Grau J; Nigam A; Bherer L; Gauthier CJ;

Aerobic exercise training promotes cardiovascular, brain and cognitive health. Regular exercise is associated with higher cardiorespiratory fitness, commonly assessed by peak oxygen uptake (VO2peak) during maximal effort testing. Higher cardiorespiratory fitness has been linked to preserved brain ...

Article GUID: 41543005


Controlling Temozolomide Efficacy by Light-Dependent Inhibition of O sup 6 /sup ‑Methylguanine DNA Methyltransferase

Author(s): Lopez-Miranda IR; Sim JI; Juneau G; Wilds CJ; Beharry AA;

The DNA repair enzyme O6-Methylguanine DNA Methyltransferase (MGMT) is a major contributor in conferring resistance to alkylating agents such as temozolomide (TMZ) in cancers. The use of MGMT inhibitors can suppress resistance and enhance the efficacy of TMZ. However, current inhibitors are nonselective for cancer cells, and as a result, MGMT is also inhi ...

Article GUID: 41531960


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