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It's a good thing that severely hypoxic salmon (Salmo salar) have a limited capacity to increase heart rate when warmed.
J Exp Biol
January 2025
Department of Ocean Sciences, Memorial University of Newfoundland and Labrador, St. John's, NL. A1C 5S7, Canada.
With climate change, fish are facing rising temperatures, an increase in the frequency and severity of heat waves and hypoxia, sometimes concurrently. However, only limited studies have examined the combined effects of increases in temperature and hypoxia on fish physiology and survival. We measured the cardiorespiratory physiology of 12°C-acclimated Atlantic salmon when exposed acutely to normoxia [100% air saturation (sat.
View Article and Find Full Text PDFUpregulation of HSP90α in the lungs and circulation in sarcoidosis.
Front Med (Lausanne)
January 2025
Department of Medicine, Firestone Institute for Respiratory Health, McMaster University, Hamilton, ON, Canada.
Background: Sarcoidosis is a systemic granulomatous disease of unknown cause. Natural improvement with favorable outcome is common, but a significant number of patients present with difficult to manage and progressive disease. The identification of biomarkers associated with disease activity and progression is warranted.
View Article and Find Full Text PDFPhenotypic and genomic characterization of Levilactobacillus brevis YT108: a potential probiotic strain capable of metabolizing xylo-oligosaccharides.
Lett Appl Microbiol
January 2025
Panxi Crops Research and Utilization Key Laboratory of Sichuan Province, Xichang University, Liangshan, China.
Levilactobacillus brevis YT108, identified for its ability to metabolize prebiotic xylo-oligosaccharides (XOS), emerges as a candidate for probiotic use in synbiotic food formulations. This study aimed to investigate the metabolic and genomic traits associated with XOS metabolism in YT108 and to assess its probiotic attributes through whole genome sequencing and in vitro assays. Strain YT108 exhibited robust growth kinetics on XOS as the sole carbon source, with a growth profile comparable to that on glucose, achieving a pH reduction to 4.
View Article and Find Full Text PDFInvestigation of adsorption properties of Periostracum serpentis as keratin-containing natural biowaste composite material for uranium.
Int J Biol Macromol
January 2025
Sivas Cumhuriyet University, Dept. of Physiology, Faculty of Veterinary Medicine, 58140, Türkiye.
In this study, the interaction of waste snake skin (Periostracum serpentis), a keratin-based biowaste composite material, with uranyl ions, the predominant form of uranium in aqueous solutions, was investigated to determine whether it could be used as an adsorbent. SEM, FTIR, BET and EDX analyses were performed to elucidate the material's surface and structural properties. The effects of the amount of adsorbent, uranyl ion concentration, pH, temperature, and adsorption time were investigated to optimize uranium removal with this material.
View Article and Find Full Text PDFRaman spectra of pyromorphite, vanadinite and mimetite at high pressures and high temperatures.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081 Guizhou, China. Electronic address:
High-pressure and high-temperature Raman spectra of natural pyromorphite, vanadinite and mimetite were measured up to 11 GPa and 973 K, respectively. No phase transition was observed within the temperature and pressure ranges in this study. Raman modes for pyromorphite, vanadinite and mimetite vary with temperature or pressure linearly.
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