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A physiologically based pharmacokinetic (PBPK) model describing the kinetics of a commercial mixture α-, β-, and γ-hexabromocyclododecane exposure in mice.
Arch Toxicol
January 2025
Scientist Emeritus, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA.
Hexabromocyclododecane (HBCD) is a brominated flame retardant, that is added, but not chemically bonded, to consumer products. HBCD is sold as a commercial-grade HBCD mixture containing three major stereoisomers: alpha (α), beta (β), and gamma (γ), with relative amounts of 12% for α-HBCD, 6% for β-HBCD, and 82% for γ-HBCD. HBCDs are widely measured in the environment and in biological matrices.
View Article and Find Full Text PDFA Redox-Active Copper Complex for Orthogonal Detection of Homocysteine Involving Fluorescence and Electrochemical Techniques.
Small
January 2025
Analytical & Environmental Science Division and Centralized Instrument Facility, CSIR-CSMCRI, G. B. Marg, Bhavnagar, 364002, India.
The present work reports the synthesis, characterization, and excited state photo-physical studies of two copper(II) compounds, 1 & 2, which show interference-free emission with homocysteine (Hcy). Cu(II) complexes offer an orthogonal detection strategy involving fluorescence and electrochemical methods, paving the way for improved point-of-care diagnostics and early cardiovascular diseases intervention. The reduction-induced emission enhancement (RIEE) of Cu complexes facilitates the fluorescence measurement of Hcy at physiological pH.
View Article and Find Full Text PDFBone Adaptations to a Whole Body Vibration Protocol in Murine Models of Different Ages: A Preliminary Study on Structural Changes and Biomarker Evaluation.
J Funct Morphol Kinesiol
January 2025
Department of Systems Medicine, "Tor Vergata" University of Rome, 00133 Rome, Italy.
: Whole body vibration (WBV) is a valuable tool to mitigate physiological adaptations related to age and inactivity. Although significant benefits have been found at the musculoskeletal level, including increased bone mass and reduced muscle atrophy, the underlying biological mechanisms remain largely unknown. Therefore, our study aimed to evaluate the effects of vibratory training on bone tissue in murine models of different age groups by investigating the structural and distribution changes in some crucial biomarkers involved in musculoskeletal homeostasis.
View Article and Find Full Text PDFJoint Effects of Lifestyle Habits and Heavy Metals Exposure on Chronic Stress Among U.S. Adults: Insights from NHANES 2017-2018.
J Xenobiot
January 2025
Department of Built Environment, North Carolina A&T State University, Greensboro, NC 27411, USA.
Background: Chronic stress, characterized by sustained activation of physiological stress response systems, is a key risk factor for numerous health conditions. Allostatic load (AL), a biomarker of cumulative physiological stress, offers a quantitative measure of this burden. Lifestyle habits such as alcohol consumption and smoking, alongside environmental exposures to toxic metals like lead, cadmium, and mercury, were individually implicated in increasing AL.
View Article and Find Full Text PDFIdentification, Occurrence, and Mechanism of Formation of 1-Acetyl-β-carbolines Derived from l-Tryptophan and Methylglyoxal.
J Agric Food Chem
January 2025
Spanish National Research Council (CSIC), Instituto de Ciencia y TecnologÃa de Alimentos y Nutrición (ICTAN), Jose Antonio Nováis 6 28040, Madrid, Spain.
β-Carbolines (βCs) are bioactive compounds present in foods and biological systems. This work describes the identification, occurrence, and mechanism of formation of 1-acetyl-β-carbolines (1-acetyl-βCs) that result from the reaction of l-tryptophan with the α-dicarbonyl compound methylglyoxal. Two β-carbolines are characterized as 1-acetyl-β-carboline (AβC) and 1-acetyl-β-carboline-3-carboxylic acid (AβC-COOH).
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