Ethnopharmacological Relevance: Dry age-related macular degeneration (AMD) has a high rate of blindness, which still lacks effective treatment. JuJing Formula (JJF) is a traditional herbal prescription known for its hepatorenal tonic effects and therapeutic applications in ocular disorders. Previous investigations have demonstrated its efficacy in the management of dry AMD.
View Article and Find Full Text PDFEthnopharmacological Relevance: Taraxacum mongolicum Hand.-Mazz. is a well-known plant used both medicinally and as food, commonly used in traditional Chinese medicine prescriptions to alleviate benign prostatic hyperplasia (BPH).
View Article and Find Full Text PDFBackground: The coronary lumen volume to myocardial mass (V/M) ratio has been suggested as a quantitative metric of potential imbalance between coronary blood supply and myocardial oxygen demand. This study was designed to assess the prognostic value of the V/M ratio for predicting major adverse cardiovascular events (MACE) in patients undergoing transcatheter aortic valve replacement (TAVR).
Methods: This study enrolled patients who received a standard planning computed tomography (CT) scan before TAVR and dichotomized at the median of 33.
Purpose: We aimed to investigate the correlation between CT-derived fractional flow reserve (CTFFR) and myocardial strain in patients with single coronary artery stenosis and to investigate the diagnostic value of CTFFR in identifying impaired myocardial strain.
Methods: We selected 89 patients, categorized into three groups based on the affected coronary artery: 36 with left anterior descending (LAD), 23 with left circumflex (LCX), and 30 with right coronary artery (RCA) stenosis, along with 25 healthy controls. We investigated correlations between CTFFR and both global and regional myocardial strain parameters.
Compared with transition metals with partially occupied 3d orbitals, Zn has a filled 3d configuration, which severely restricts electron mobility and hence usually renders Zn intrinsically inactive for electrochemical sensing. Metal single-atom catalysts are a new kind of sensing material. Owing to their unique coordination structure and high atomic utilization rate, metal single-atom catalysts show unique properties, which makes them promising for use in the field of electrochemical sensing.
View Article and Find Full Text PDFIntroduction: Differentiating hypertensive heart disease (HHD) from hypertrophic cardiomyopathy (HCM) is crucial yet challenging due to overlapping clinical and morphological features. Recent studies have explored the use of various cardiac magnetic resonance (CMR) parameters to distinguish between these conditions, but findings have remained inconclusive. This study aims to identify which CMR parameters effectively discriminate between HHD and HCM and to investigate their underlying pathophysiological mechanisms through a meta-analysis.
View Article and Find Full Text PDFFor the first time potassium single-atoms (K SA) are explored as the sensing material to boost electrochemical sensing of hydrogen peroxide (HO). The N-doped carbon material with a three-dimensional porous structure (3D NG) was prepared using NaCl as the template, and K SA were anchored to the surface of 3D NG through high-temperature pyrolysis. The structure of K SA/3D NG was characterized by TEM, HAADF-STEM, XPS, and XRD.
View Article and Find Full Text PDFWhich is more suitable as a sensing material between metal single-atoms and nanoparticles? Herein, electrocatalytic behaviors of copper single-atoms (Cu SAs) and copper nanoparticles (CuNPs) toward HO reduction and glucose oxidation were studied. Surprisingly, the electrocatalytic activity of Cu SAs and CuNPs showed significant differences in HO reduction and glucose oxidation. Compared with CuNPs, Cu SAs exhibit outstanding activity in the electrocatalytic reduction of HO but exhibit weak activity in the electrocatalytic oxidation of glucose.
View Article and Find Full Text PDFHypoxia-inducible factor-2 (HIF-2) serves as the pivotal transcription factor in cellular responses to low oxygen levels, particularly concerning the regulation of erythropoietin (EPO) production. A docking-based virtual screening on crystal structures of HIF-2α inhibitors unexpectedly identified 3-phenyl-5-methyl-isoxazole-4-carboxamide derivative v19 as a hit of HIF-2α agonist. Further structural optimizations of compound v19 led to the discovery of a series of HIF-2α agonists with novel scaffolds.
View Article and Find Full Text PDFSingle-atom catalysts received increasing attention due to their maximum atom utilization efficiency. However, metal-free single atoms have not been used to construct electrochemical sensing interfaces. In this work, we demonstrated the use of Se single atoms (SA) as electrocatalyst for sensitive electrochemical nonenzymatic detection of HO.
View Article and Find Full Text PDFMikrochim Acta
January 2020
Porous CoS was synthesized by a two-step hydrothermal method, and its morphology and structure were characterized by transmission electron microscopy and X-ray diffraction. Electrochemical investigations showed that a glassy carbon electrode modified with CoS exhibits high electrocatalytic activity toward glucose in 0.2 M NaOH solution.
View Article and Find Full Text PDFSilver nanoparticles were synthesized by reducing [Ag(NH3)2](+) at a gas/liquid interface in the presence of silver seeds. Transmission electron microscopy (TEM) observations reveal that the size of these silver nanoparticles is around 35-40 nm with the average particle size of 37 nm. The silver nanoparticles were applied for the electrochemical sensor and electrochemical investigations indicate that the nanoparticles possess an excellent performance toward H2O2.
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