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DIAGNOSTIC AND CLINICAL ASPECTS OF NORMOCALCEMIC PARATHYROID HYPERPLASIA AND NON-RENAL SECONDARY HYPERPARATHYROIDISM IN EXPOSED AND NON;EXPOSED TO IONIZING RADIATION INDIVIDUALS (LITERATURE REVIEW AND OWN RESEARCH DATA).
Probl Radiac Med Radiobiol
December 2024
State Institution «National Research Center for Radiation Medicine, Hematology and Oncology of the National Academy of Medical Sciences of Ukraine», 53 Yuriya Illienka Street, Kyiv, 04050, Ukraine.
Parathyroids are the key regulators of calcium-phosphorus metabolism. By means of parathyroid hormone they respond to any changes in the serum level of calcium and phosphorus ions and determine the integrity of skeleton, affecting almost all systems and cells where calcium and phosphorus are involved in metabolism and/or signaling.Disorders of parathyroid function are associated with significant complications accompanying secondary hyperparathyroidism.
View Article and Find Full Text PDFRadiation-induced aerobic oxidation solvent-derived peroxyl radicals.
Chem Sci
December 2024
Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University Beijing 100871 China
Oxidation is a fundamental transformation in synthesis. Developing facile and effective aerobic oxidation processes under ambient conditions is always in high demand. Benefiting from its high energy and good penetrability, ionizing radiation can readily produce various reactive species to trigger chemical reactions, offering another option for synthesis.
View Article and Find Full Text PDFFine sediment-associated contaminants in gravel bed rivers: Evaluating storage times and turnover using fallout radionuclides (FRNs).
Sci Total Environ
December 2024
School of Geography, Earth and Environmental Sciences, University of Plymouth, Plymouth PL4 8AA, United Kingdom.
Excess fine sediment supply and its associated contaminants can have detrimental effects on water quality and river ecology with sediment deposition on, and subsequent infiltration in, streambeds impacting riverine habitats. Fallout radionuclides (FRNs) are used as tracers in aquatic systems, and the Be/Pb ratio is a useful indicator for sediment residence/storage time. Suspended and submerged mid-channel bar sediments were collected during five surveys within a 5 km reach of a typical temperate lowland agricultural river system.
View Article and Find Full Text PDFDevelopment of TiF4-Dendrimer complex gel as an anti-demineralization agent for dentin: An in vitro study.
Dent Mater
December 2024
Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran; Restorative Dentistry Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran. Electronic address:
Objective: The anti-caries effects of titanium tetrafluoride (TiF4) are well-documented, but its low pH challenges clinical application. This study evaluated PEG-citrate dendrimer as a carrier to enhance TiF4 stability and efficacy.
Methods: PEG-citrate dendrimer and TiF4-dendrimer gel were synthesized, and their structures confirmed using Fourier Transform Infrared Spectroscopy (FTIR), Hydrogen Nuclear Magnetic Resonance (1H NMR), and Liquid Chromatography-Mass Spectrometry (LC-MS).
Comprehensive spectroscopic and morphological analysis of the effects exerted by different acids on Pig bone: Forensic aspect.
Forensic Sci Int
January 2025
University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, Belgrade 11000, Serbia. Electronic address:
Demineralization of the chemically treated pig shoulder bone in hydrochloric, hydrofluoric, and acetic acid was monitored by ATR-FTIR, Raman, and LIBS spectroscopies and SEM-EDX technique. SEM-EDX analysis showed reduced calcium and phosphorus content after the treatment with acids and erosion of the overall morphology of the bone compared to the sample kept in water. Alterations in bone structure during the 14-day-long immersion in acid solutions indicated significant chemical changes in the obtained spectra.
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