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Transcriptomic Shifts in Multipotent Mesenchymal Stromal Cells during Microgravity Simulation.
Dokl Biochem Biophys
January 2025
Institute of Biomedical Problems, Russian Academy of Sciences, 123007, Moscow, Russia.
One of the most obvious manifestations of the negative impact of space flight factors on the human physiology is osteopenia. With the active development of manned space flights and the increase in the duration of humans' persistence in weightlessness, there is a growing need to understand the mechanisms of changes occurring at the cellular level involved in the replenishment of bone tissue. Using the RNA sequencing method, changes in the transcriptome profile of MMSCs were studied after a 5-day simulation of the microgravity effects.
View Article and Find Full Text PDFStudy on Interaction Between 5-(4 Methoxyphenyl)-1-Phenyl-1H-1,2,3-Triazole with High-Abundant Blood Proteins and Identification of Low-Abundant Proteins by Serum Proteomics.
J Sep Sci
January 2025
Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Hainan Normal University, Haikou, China.
A comprehensive strategy, including spectroscopic, molecular simulation, proteomics, and bioinformatics techniques, was employed to investigate a novel triazole, 5-(4-methoxyphenyl)-1-phenyl-1H-1,2,3-triazole, its interactions with high-abundance blood proteins, and identification of low-abundance proteins. The binding constants and thermodynamic parameters of the triazole to two high-abundance blood globular proteins, human serum albumin, and human immunoglobulin G (HIgG), were obtained by spectroscopic techniques and computational chemistry. The two-dimensional gel electrophoresis in combination with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry was employed to isolate and identify differentially expressed low-abundance proteins in human blood serum samples following exposure to the triazole.
View Article and Find Full Text PDFSeasonal plasticity in daily timing of flight activity in is driven by temperature modulation of dawn entrainment.
Philos Trans R Soc Lond B Biol Sci
January 2025
Chronobiology Section, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK.
The Asian malaria vector is invading Africa, requiring it to adapt to novel climates and ecosystems. In part, this may be facilitated by 's poorly understood seasonal behavioural plasticity in flight timing, leading to earlier biting activity in cold Asian winters and later biting times in the warm summer. Changes in behavioural timing could be directly imposed by seasonal variation in ambient light and temperature levels or result from altered entrainment of intrinsically expressed circadian rhythms by these factors.
View Article and Find Full Text PDFAdvancing bat monitoring: Assessing the impact of unmanned aerial systems on bat activity.
PLoS One
January 2025
Department of Competence Center for Renewable Energies and Energy Efficiency, Hamburg University of Applied Sciences, Hamburg, Germany.
With the increasing height and rotor diameter of wind turbines, bat activity monitoring within the risk area becomes more challenging. This study investigates the impact of Unmanned Aerial Systems (UAS) on bat activity and explores acoustic bat detection via UAS as a new data collection method in the vicinity of wind turbines. We tested two types of UAS, a multicopter and a Lighter Than Air (LTA) UAS, to understand how they may affect acoustically recorded and analyzed bat activity level for three echolocation groups: Pipistrelloid, Myotini, and Nyctaloid.
View Article and Find Full Text PDFSmall intra-tropical long-distance migratory birds track rainy seasons across hemispheres.
Proc Biol Sci
January 2025
Swiss Ornithological Institute, Sempach, Switzerland.
The main features of long-distance migration are derived from landbirds breeding in the Northern Hemisphere. Little is known about migration within the tropics, presumably because tropical species typically move opportunistically and over shorter distances. However, such generalizations are weakened by a lack of solid data on spatial, temporal and behavioural patterns of intra-tropical migrations.
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