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Quantitative magnetic resonance imaging responses in head and neck cancer patients treated with magnetic resonance-guided hypofractionated radiation therapy.
Phys Imaging Radiat Oncol
January 2025
Department of Biophysics, Medical College of Wisconsin, Milwaukee, WI, United States.
Background And Purpose: Quantitative MRI (qMRI) has been explored for detecting tumor changes during radiation therapy (RT) in head and neck squamous cell cancer (HNSCC). Clinical trials show prolonged survival with PD-1 targeted immune checkpoint inhibition. Hypofractionated radiation regimens are being studied to counteract radioresistant clonogen formation.
View Article and Find Full Text PDFPSSKB: A Web Application to Study Protein Structures.
J Comput Chem
January 2025
Laboratory of Structural Proteomics, Institute of Biomedical Chemistry, Pogodinskaya, Moscow, Russia.
The proteins expressed during the cell cycle determine cell function and ensure signaling pathway activation in response to environmental influences. Developments in structural biology, biophysics, and bioinformatics provide information on the structure and function of particular proteins including that on the structural changes in proteins due to post-translational modification (PTM) and amino acid substitutions (AAS), which is essential for understanding protein function and life cycle. These are PTMs and AASs that often modulate the function and alter the stability and localization of a protein in a cell.
View Article and Find Full Text PDFMethod for determining of cytotoxicity based on the release of fluorescent proteins.
BMC Mol Cell Biol
January 2025
Institute of Future Biophysics, Institutskiy per. 9, Dolgoprudny, Moscow Oblast, Moscow, Russia.
This paper describes a method for determining the cytotoxicity of chemical compounds based on the detection of fluorescent proteins-in this case, green fluorescent protein (GFP) and red fluorescent protein (RFP), which are released into the medium from dead cells. This method is similar in principle to the lactate dehydrogenase test (LDH test), but it does not require a reaction with a chromogenic substrate. This method also makes it possible to independently determine the viability of different lines when used in cocultures.
View Article and Find Full Text PDFIntramyocellular lipid use is altered with exercise in males with childhood-onset obesity despite no differences in substrate oxidation.
Int J Obes (Lond)
January 2025
Department of Health, Kinesiology, and Applied Physiology, Concordia University, Montreal, QC, Canada.
Objective: Compared to adulthood-onset obesity (AO), those with childhood-onset obesity (CO) are at greater risk of metabolic disease. However, the differences between these two obesity phenotypes are not clear. The aim of this study is to investigate how the age of obesity onset (CO vs.
View Article and Find Full Text PDFShort-term airborne ultrasound induced cell death in tobacco cells and changed their wall components.
Sci Rep
January 2025
Department of Physics, Faculty of Basic Sciences, Shahed University, Tehran, Iran.
The effects of low-intensity ultrasound on plants such as piezoelectric and ultrasonic water baths, on plants have been extensively studied. However, the specific effect of airborne ultrasound on plant cells has yet to be reported. The present study was conducted to elucidate the physiological responses of plant cells to airborne US.
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