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Rational pore engineering reveals the relative contribution of enzymatic sites and self-assembly towards rapid ferroxidase activity and mineralization: impact of electrostatic guiding and cage-confinement in bacterioferritin.
Chem Sci
January 2025
Department of Chemistry, National Institute of Technology Rourkela - 769008 Odisha India +91-661-2462651 +91-661-2462980.
The self-assembled ferritin protein nanocage plays a pivotal role during oxidative stress, iron metabolism, and host-pathogen interaction by executing rapid iron uptake, oxidation and its safe-storage. Self-assembly creates a nanocompartment and various pores/channels for the uptake of charged substrates (Fe) and develops a concentration gradient across the protein shell. This phenomenon fuels rapid ferroxidase activity by an upsurge in the substrate concentration at the catalytic sites.
View Article and Find Full Text PDFCitrate: a key signalling molecule and therapeutic target for bone remodeling disorder.
Front Endocrinol (Lausanne)
January 2025
Department of Orthopedics, The First Hospital of China Medical University, Shenyang, China.
Bone remodeling is a continuous cyclic process that maintains and regulates bone structure and strength. The disturbance of bone remodeling leads to a series of bone metabolic diseases. Recent studies have shown that citrate, an intermediate metabolite of the tricarboxylic acid (TCA) cycle, plays an important role in bone remodeling.
View Article and Find Full Text PDFAssociation of serum magnesium and calcium with metabolic syndrome: a cross-sectional study from the Qatar-biobank.
Nutr Metab (Lond)
January 2025
Department of Population Medicine, College of Medicine, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar.
Background And Objectives: Metabolic syndrome (MetS) and its constituent comorbidities, along with mineral imbalances, pose a significant health burden in the Qatari population. Although Magnesium (Mg) and Calcium (Ca) have been individually linked to MetS, the impact of the calcium-to-magnesium ratio (Ca: Mg) on MetS remains unclear, especially in the adult population of Qatar. In this study, we aim to investigate the association between the total serum concentrations of Ca, Mg and Ca: Mg ratio with the outcome of MetS.
View Article and Find Full Text PDFChronic kidney disease.
Nat Rev Dis Primers
January 2025
Division of Nephrology, Department of Medicine IV, Hospital of the Ludwig-Maximilians University, Munich, Germany.
Chronic kidney disease (CKD) is defined by persistent abnormalities of kidney function or structure that have consequences for the health. A progressive decline of excretory kidney function has effects on body homeostasis. CKD is tightly associated with accelerated cardiovascular disease and severe infections, and with premature death.
View Article and Find Full Text PDFEnvironmentally persistent free radicals stimulate CYP2E1-mediated generation of reactive oxygen species at the expense of substrate metabolism.
Drug Metab Dispos
January 2025
Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Science Center, New Orleans, Louisiana; The Stanley S. Scott Cancer Center, Louisiana State University Health Science Center, New Orleans, Louisiana. Electronic address:
Environmentally persistent free radicals (EPFRs) are a recently recognized component of particulate matter that cause respiratory and cardiovascular toxicity. The mechanism of EPFR toxicity appears to be related to their ability to generate reactive oxygen species (ROS), causing oxidative damage. EPFRs were shown to affect cytochrome P450 (P450) function, inducing the expression of some forms through the Ah receptor.
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