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Heterogeneous Frustrated Lewis Pair Catalysts: Rational Structure Design and Mechanistic Elucidation Based on Intrinsic Properties of Supports.
Acc Chem Res
January 2025
The Wolfson Catalysis Centre, Department of Chemistry, University of Oxford, Oxford OX1 3QR, U.K.
ConspectusThe discovery of reversible hydrogenation using metal-free phosphoborate species in 2006 marked the official advent of frustrated Lewis pair (FLP) chemistry. This breakthrough revolutionized homogeneous catalysis approaches and paved the way for innovative catalytic strategies. The unique reactivity of FLPs is attributed to the Lewis base (LB) and Lewis acid (LA) sites either in spatial separation or in equilibrium, which actively react with molecules.
View Article and Find Full Text PDFMitigating PM Induced Myocardial Metal Deposition Through Sodium Thiosulfate Resulted in Reduction of Cardiotoxicity and Physiological Recovery From Ischemia-Reperfusion via Mitochondrial Preservation.
Environ Toxicol
January 2025
Cardiovascular Center, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA.
The cardiovascular risks linked to PM include calcification in both vasculature and myocardial tissues, leading to structural changes and functional decline. Through the selection of a clinically proven endogenous agent, sodium thiosulfate (STS), capable of addressing PM related cardiac abnormalities, we not only address the absence of effective solutions to mitigate PM toxicity, but also provide evidence for the repurposing potential of STS in ameliorating PM induced cardiac damage. Female Wistar rats were exposed to PM (250 μg/m) for 3 h daily for 21 days.
View Article and Find Full Text PDFFatty acid metabolism and the oxidative stress response support bacterial predation.
Proc Natl Acad Sci U S A
February 2025
Aix-Marseille Université-CNRS UMR 7283, Institut de Microbiologie de la Méditerranée and Turing Center for Living Systems, Marseille 13009, France.
Despite growing awareness of their importance in soil ecology, the genetic and physiological traits of bacterial predators are still relatively poorly understood. In the course of a predator evolution experiment, we identified a class of genotypes leading to enhanced predation against diverse species. RNA-seq analysis demonstrated that this phenotype is linked to the constitutive activation of a predation-specific program.
View Article and Find Full Text PDFGene syntax-the order and arrangement of genes and their regulatory elements-shapes the dynamic coordination of both natural and synthetic gene circuits. Transcription at one locus profoundly impacts the transcription of nearby adjacent genes, but the molecular basis of this effect remains poorly understood. Here, using integrated reporter circuits in human cells, we show that supercoiling-mediated feedback regulates expression of adjacent genes in a syntax-specific manner.
View Article and Find Full Text PDFFrom contamination to detection: The growing threat of heavy metals.
Heliyon
January 2025
Institute of Global Health and Human Ecology, School of Sciences and Engineering, The American University in Cairo, P.O. Box 74, New Cairo, 11835, Egypt.
Heavy metals like lead, mercury, cadmium, and arsenic are environmental pollutants that accumulate in ecosystems and pose significant health risks to humans and wildlife, primarily through food chain contamination where plants absorb heavy metals, affecting their growth and threatening consumer health. Cognitive and cardiovascular functions are particularly affected by exposure to heavy metals even at low concentrations through the induction of oxidative stress. Various analytical techniques are used in measuring heavy metals in different environmental and biological samples.
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