Safety Analysis of Visual Percutaneous Tracheostomy in Neurocritical Care Patients with Anticoagulation and Antithrombosis.

Background: This study aims to evaluate the safety of visual percutaneous tracheostomy (vPDT) in neurologic intensive care unit (NICU) patients who are under anticoagulant and antithrombotic therapy.

Methods: A retrospective cohort study was conducted on 54 NICU patients who underwent vPDT at Tai'an Central Hospital from September 2022 to September 2023. The cohort included 36 men and 18 women aged 36-90 years (mean age 62.

Anisotropic Spin Fluctuations Induced by Spin-Orbit Coupling in a Misfit Layer Compound (LaSe)(NbSe).

Spin-orbit coupling (SOC) has significant effects on the superconductivity and magnetism of transition metal dichalcogenides (TMDs) at the 2D limit. Although 2D TMD samples possess many exotic properties different from those of bulk samples, experimental characterization in this field is still limited, especially for magnetism. Recent studies have revealed that bulk misfit layer compounds (MLCs) with (LaSe)(NbSe) exhibit an Ising superconductivity similar to that of heavily electron-doped NbSe monolayers.

Virtual Position Guided Strategy for Particle Swarm Optimization Algorithms on Multimodal Problems.

Premature convergence is a thorny problem for particle swarm optimization (PSO) algorithms, especially on multimodal problems, where maintaining swarm diversity is crucial. However, most enhancement strategies for PSO, including the existing diversity-guided strategies, have not fully addressed this issue. This paper proposes the virtual position guided (VPG) strategy for PSO algorithms.

Vincamine alleviates brain injury by attenuating neuroinflammation and oxidative damage in a mouse model of Parkinson's disease through the NF-κB and Nrf2/HO-1 signaling pathways.

Parkinson's disease (PD) is a neurodegenerative disease featured by progressive loss of nigrostriatal dopaminergic neurons, the etiology of which is associated with the existence of neuroinflammatory response and oxidative stress. Vincamine is an indole alkaloid that was reported to exhibit potent anti-inflammatory and antioxidant properties in many central and/or peripheral diseases. Nevertheless, the specific role of vincamine in PD development remains unknown.

Arterial transit artifact as a short-term prognostic indicator in acute ischemic stroke.

Background: Arterial transit artifact (ATA) observed on arterial spin labeling (ASL) was recently suggested to be associated with improved functional outcomes following acute ischemic stroke (AIS). AIS is a heterogeneous disease with diverse pathogenic mechanisms depending on the stroke subtype. This study aimed to investigate the association between ATA and 3-month functional outcomes in AIS patients according to etiology subtypes.

Potent antitumor activity of anti-HER2 antibody-topoisomerase I inhibitor conjugate based on self-immolative dendritic dimeric-linker.

Antibody-drug conjugates (ADCs) are a rapidly expanding class of anticancer therapeutics, with 14 ADCs already approved worldwide. We developed unique linker technologies for the bioconjugation of drug molecules with controlled-release applications. We synthesized cathepsin-cleavable ADCs using a dimeric prodrug system based on a self-immolative dendritic scaffold, resulting in a high drug-antibody ratio (DAR) with the potential to reach 16 payloads due to its dendritic structure, increased stability in the circulation and efficient release profile of a highly cytotoxic payload at the targeted site.

Discovery of two -atisane diterpenoid lactones with AChE inhibitory activity from the roots of .

Euphorlactone A (1), a rare rearranged -atisane norditerpenoid with an undescribed 3--2,4-olide--atisane scaffold, and euphorlactone B (2), a new -atisane diterpenoid with an unprecedented seven-membered lactone ring C, were isolated from the roots of . Their planar structures with absolute configurations were extensively elucidated by analysis of 1D and 2D NMR data, electronic circular dichroism (ECD) calculations, Rh(OCOCF)-induced ECD curves, and single-crystal X-ray diffraction. Euphorlactone A (ELA) showed a remarkable AChE (acetylcholinesterase) inhibitory activity (IC = 2.

NSAID-Au(I) Complexes Induce ROS-Driven DAMPs and Interpose Inflammation to Stimulate the Immune Response against Ovarian Cancer.

Inflammation contributes to the development of ovarian cancer, and chemoresistance is a principal obstacle in ovarian cancer treatment. Herein, we designed and synthesized a series of gold(I) complexes derived from NSAIDs or their analogues. Among them, complex () displayed higher antitumor activity than cisplatin and other gold(I) complexes.

Emergent charge order in pressurized kagome superconductor CsVSb.

The discovery of several electronic orders in kagome superconductors AVSb (A means K, Rb, Cs) provides a promising platform for exploring unprecedented emergent physics. Under moderate pressure (<2.2 GPa), the triple-Q charge density wave (CDW) order is monotonically suppressed by pressure, while the superconductivity shows a two-dome-like behaviour, suggesting an unusual interplay between superconductivity and CDW order.

Integrated Design for Regulating the Interface of a Solid-State Lithium-Oxygen Battery with an Improved Electrochemical Performance.

A composite solid-state electrolyte (SSE) with acceptable safety and durability is considered as a potential candidate for high-performance lithium-oxygen (Li-O) batteries. Herein, to address the safety issues and improve the electrochemical performance of Li-O batteries, a solvent-free composite SSE is prepared based on the thermal initiation of poly(ethylene glycol) diacrylate radical polymerization, and an integrated battery is achieved by injecting an electrolyte precursor between electrodes during the assembly process through a simple heat treatment. The Li-metal symmetric cells based on this composite SSE achieve a critical current density of 0.

Recent development of gold(I) and gold(III) complexes as therapeutic agents for cancer diseases.

Metal complexes have demonstrated significant antitumor activities and platinum complexes are well established in the clinical application of cancer chemotherapy. However, the platinum-based treatment of different types of cancers is massively hampered by severe side effects and resistance development. Consequently, the development of novel metal-based drugs with different mechanism of action and pharmaceutical profile attracts modern medicinal chemists to design and synthesize novel metal-based agents.

High-Throughput Color Imaging Hg Sensing via Amalgamation-Mediated Shape Transition of Concave Cube Au Nanoparticles.

Mercury, as one type of toxic heavy metal, represents a great threat to environmental and biological metabolic systems. Thus, reliable and sensitive quantitative detection of mercury levels is particularly meaningful for environmental protection and human health. We proposed a high-throughput single-particle color imaging strategy under dark-field microscopy (DFM) for mercury ions (Hg) detection by using individual concave cube Au nanoparticles as optical probes.

Ursolic acid inhibits Th17 cell differentiation via STAT3/RORγt pathway and suppresses Schwann cell-mediated Th17 cell migration by reducing CXCL9/10 expression.

Th17 cells represent important immune cells. Ursolic acid (UA) can regulate immune cell activities. This study was aimed to explore the effects of UA on Th17 cell differentiation and Schwann cell(SCs)-mediated migration and the potential mechanism.

Charge-density-wave-driven electronic nematicity in a kagome superconductor.

Electronic nematicity, in which rotational symmetry is spontaneously broken by electronic degrees of freedom, has been demonstrated as a ubiquitous phenomenon in correlated quantum fluids including high-temperature superconductors and quantum Hall systems. Notably, the electronic nematicity in high-temperature superconductors exhibits an intriguing entanglement with superconductivity, generating complicated superconducting pairing and intertwined electronic orders. Recently, an unusual competition between superconductivity and a charge-density-wave (CDW) order has been found in the AVSb (A = K, Rb, Cs) family with two-dimensional vanadium kagome nets.

Characterization of the Riemerella anatipestifer M949_RS00050 gene.

Based on its causing ever-increasing heavy economic losses, Riemerella anatipestifer has been viewed as an important bacterial pathogen in the duck industry worldwide. However, the molecular mechanisms regarding its pathogenicity are poorly understood. In our previous study, we have built a random mutagenesis library of Riemerella anatipestifer CH3 using transposon Tn4351.

Single and combined effects of amino polystyrene and perfluorooctane sulfonate on hydrogen-producing thermophilic bacteria and the interaction mechanisms.

As a carrier of perfluorooctane sulfonate, nano-plastics are ubiquitous and finally enriched in the sludge, which is widely used as a raw material for the production of bioenergy (hydrogen or methane) by anaerobic digestion. However, there are still many unknowns about their metabolic toxicity to functional microbes (e.g.

Immobilization of BMP-2-derived peptides on 3D-printed porous scaffolds for enhanced osteogenesis.

Three-dimensional (3D) printing technologies open up new perspectives for customizing the external shape and internal architecture of bone scaffolds. In this study, an oligopeptide (SSVPT, Ser-Ser-Val-Pro-Thr) derived from bone morphogenetic protein 2 was conjugated with a dopamine coating on a 3D-printed poly(lactic acid) (PLA) scaffold to enhance osteogenesis. Cell experiments in vitro showed that the scaffold was highly osteoconductive to the adhesion and proliferation of rat marrow mesenchymal stem cells (MSCs).

gene is responsible for the bacterial resistance to tigecycline.

Based on its important role in last-line therapeutics against multidrug-resistant bacteria, tigecycline has been increasingly important in treating infections. However, mounting reports on tigecycline-resistant bacterial strains isolated from different sources are of concern, and molecular mechanisms regarding tigecycline resistance are poorly understood. is a Gram-negative, non-motile, non-spore-forming, rod-shaped bacterium, which causes fibrinous pericarditis, perihepatitis, and meningitis in infected ducks.

Bioavailability-based estimation of phytotoxicity of imazaquin in soil to sorghum.

The injury to sensitive rotational crops caused by residual herbicides from their applications has happened frequently. The assessment of activity of residual herbicide in soil has been of agronomic concern. To accurately determine the toxicity and obtain a comparable concentration that inhibits growth by 50% (IC50) in different soils, the concentrations of imazaquin in CaCl2 (CCaCl2) and H2O (CH2O) extraction and in in situ pore water (CPW) were adopted for the estimation of IC50 to sorghum.

Rationality and effectiveness of transarterial chemoembolization as an initial treatment for BCLC B stage HBV-related hepatocellular carcinoma.

Background & Aims: Transarterial chemoembolization (TACE) is recommended as standard care for intermediate hepatocellular carcinoma (HCC). We analyse the rationality and effectiveness of TACE with BCLC B stage HBV-related HCC in a large cohort.

Methods: A total of 1516 patients with BCLC B stage from 7724 HBV-related HCCs who received TACE as initial treatment were retrospectively studied.

Nonsteroidal bivalent estrogen ligands: an application of the bivalent concept to the estrogen receptor.

The estrogen receptor (ER) is a hormone-regulated transcription factor that binds, as a dimer, to estrogens and to specific DNA sequences. To explore at a fundamental level the geometric and topological features of bivalent-ligand binding to the ER dimer, dimeric ER crystal structures were used to rationally design nonsteroidal bivalent estrogen ligands. Guided by this structure-based ligand design, we prepared two series of bivalent ligands (agonists and antagonists) tethered by flexible spacers of varying lengths (7-47 Å) and evaluated their ER-binding affinities for the two ER subtypes and their biological activities in cell lines.

Conformational analysis of bivalent estrogen receptor ligands: from intramolecular to intermolecular binding.

The estrogen receptor binding affinities of bivalent raloxifene ligands tethered by flexible spacers of different lengths have been evaluated in vitro. Two bivalent binding modes, intra- and intermolecular, were hypothesized to explain their different binding properties. The binding affinities of these bivalent ligands in an aqueous environment are influenced by their conformations, which can be determined by 2D NMR and UV spectral methods.

Towards a rational spacer design for bivalent inhibition of estrogen receptor.

Estrogen receptors are known drug targets that have been linked to several kinds of cancer. The structure of the estrogen receptor ligand binding domain is available and reveals a homodimeric layout. In order to improve the binding affinity of known estrogen receptor inhibitors, bivalent compounds have been developed that consist of two individual ligands linked by flexible tethers serving as spacers.

[Study of growth inhibitory effect and apoptosis induced by different matches of Tanshinone IIA and Salvianolic Acid B on Acute Promyelocytic Leukemia cells (HL-60)].

Objective: To investigate the growth inhibiting and apoptosis inducing mechanisms of different matches of Tanshinone IIA and Salvianolic Acid B on Acute Promyelocytic Leukemia Cells (HL-60).

Methods: The HL-60s' growth inhibition and apoptosis-induced rates were detected by MTT reduction assay and flow cytometry with various matches of TanIIA and SalB.

Results: The HL-60s' growth inhibition and apoptosis-induced rates were found higher in the group of TanIIA plus SalB than other single groups, and in the group TanIIA-SalB (10-5 microg/ml) they were the highest (P<0.