Front Med (Lausanne)
December 2024
Traditional immunotherapies mainly focus on αβ T cell-based strategies, which depend on MHC-mediated antigen recognition. However, this approach poses significant challenges in treating recurrent tumors, as immune escape mechanisms are widespread. γδ T cells, with their ability for MHC-independent antigen presentation, offer a promising alternative that could potentially overcome limitations observed in traditional immunotherapies.
View Article and Find Full Text PDFA-site cations in ABX metal halide perovskites do not contribute to the frontier electronic states. They influence optoelectronic properties indirectly through interaction with the BX sublattice. By systematically investigating correlated motions of Cs cations and the PbX lattice (X = Cl, Br, I), we demonstrate that the interaction between the two subsystems depends on electronegativity and size of the X-site anion.
View Article and Find Full Text PDFPurpose: Chronic suppurative otitis media (CSOM) is a prominent contributor to preventable hearing loss globally. Probiotic therapy has attracted research interest in human infectious and inflammatory disease. As the most prevalent probiotic, the role of in CSOM remains poorly defined.
View Article and Find Full Text PDFThe Phase 3 RATIONALE-312 trial (NCT04005716) showed that tislelizumab plus chemotherapy led to a noteworthy enhancement resulted in a significant improvement in overall survival among patients diagnosed with extensive-stage small-cell lung cancer (ES-SCLC) compared to chemotherapy alone. The treatment also had an acceptable level of safety. Nevertheless, the debate over the efficacy of implementing several treatment plans in competition continues due to the significant expenses involved.
View Article and Find Full Text PDFFibroblast growth factor receptor 4 (FGFR4) has been proven to be a promising target for FGFR-driven HCC therapy. Great efforts have been devoted to the discovery of FGFR4 inhibitors. In this article, a new class of Ponatinib-based N-phenylpyridine-2-amine derivatives was designed and synthesized as covalent and irreversible FGFR4 selective inhibitors through a rational drug design strategy.
View Article and Find Full Text PDFHybrid lead halide perovskites are promising materials for photovoltaic applications due to their exceptional optoelectronic properties. Here, we investigate the impact of Schottky defects─specifically PbI(V) and CHNHI (V) vacancies─on nonradiative recombination in CHNHPbI using time-dependent density functional theory and nonadiabatic (NA) molecular dynamics. Our results reveal that Schottky defects do not alter the fundamental bandgap or introduce trap states but instead distort the surrounding lattice, localizing the hole distribution.
View Article and Find Full Text PDFFlorida manatees () continue to experience pressure from various stressors that frequently result in the need for rescue and veterinary assistance. Interestingly, a subset of rescued manatees in critical condition exhibits profound hypoglycemia. The goals of this study were to enhance our understanding of this important aspect of manatee care by 1) characterizing the clinical presentation and factors associated with manatees that present with profound hypoglycemia, and 2) assessing agreement across blood glucose testing modalities [glucometer (whole blood), in-house bench-top analyzer (whole blood), a point of care analyzer (whole blood), and a local human hospital laboratory analyzer (serum)].
View Article and Find Full Text PDFGas-phase organic acids are ubiquitous in the atmosphere with mixing ratios of several species, such as formic acid and acetic acid, often as high as several parts per billion by volume (ppbv). Organic acids are produced via photochemical reactions and are also directly emitted from various sources, including combustion, microbial activity, vegetation, soils, and ruminants. We present measurements of gas-phase formic, acetic, propionic, pyruvic, and pentanoic acids from a site near Boise, Idaho, in August 2019 made by iodide-adduct chemical ionization mass spectrometry (CIMS).
View Article and Find Full Text PDFRice blast is one of the most devastating diseases and a serious threat to global food security. It is caused by the ascomycetous fungus . During the pathogenic development of , ferroptotic death of conidial cells is critical for appressorium formation and infection to host rice.
View Article and Find Full Text PDFRenal interstitial fibrosis, a condition prevalent in aging humans and animals, is closely linked to the eventual development of renal failure. Establishing an animal model that exactly replicates the pathogenesis of renal interstitial fibrosis induced by natural aging in humans is crucial for advancing mechanistic studies and testing antifibrotic therapies. Implanted allogeneic or xenogeneic cells are cleared by the immune system when stem cell therapy is applied in nonimmunodeficient animal fibrosis models, affecting the effect of the intervention and making it difficult to demonstrate the survival, proliferation, differentiation, or secretion of the delivered autologous human-derived cells.
View Article and Find Full Text PDFSelective hydrogenation has been employed extensively to produce value-added chemicals and fuels, greatly alleviating the problems of fossil resources and green synthesis. However, the design and synthesis of highly efficient catalysts, especially those that are inexpensive and abundant in the earth's crust, is still required for basic research and subsequent industrial applications. In recent years, many studies have revealed that the rational design and synthesis of heterogeneous catalysts can efficaciously improve the catalytic performance of hydrogenation reactions.
View Article and Find Full Text PDFJ Assist Reprod Genet
December 2024
Purpose: Early embryo arrest is characterized by premature termination of development in preimplantation embryos. Human subcortical maternal complex (SCMC) is a protein complex that is specifically expressed in mammalian oocytes and early embryos and is essential for embryonic cell division. Peptidyl arginine deiminase 6 (PADI6) is proven to be a member of SCMC.
View Article and Find Full Text PDFSelf-assembly of fenugreek polysaccharides FS60 (a natural macromolecular material) with curcuminoid has been proved to improve curcumin (Cur) water dispersion in preliminary studies. This study further explored the effect of FS60 on Cur bioavailability in vivo to assess the significance of this delivery method. In this study, we optimized the formulation parameters of FS60-curcuminoid aggregates (FC) and studied their effects on Cur pharmacokinetics in rats.
View Article and Find Full Text PDFThe transition metal nanocatalysts containing disordered active sites can potentially achieve efficient Sabatier reactions with high selectivity. However, it remains a challenge to maintain the stability of these active sites in such an exothermic reaction. Here, a thermal management approach is reported to address this challenge.
View Article and Find Full Text PDFManagement of labor in women with diabetes is challenging due to the high risk of peri- and postpartum complications. To avoid cesarean section and assist with labor progression, Pitocin, a synthetic oxytocin, is frequently used to induce and augment labor. However, the efficacy of Pitocin is often compromised in diabetic pregnancies, leading to increased cesarian delivery.
View Article and Find Full Text PDFOw7ing to the flat center and steep edge, the flat-top beam is widely used in the fields of micromachining and optical image processing. Here, we propose an efficient scheme to generate a picosecond pulsed flat-top beam in a mode-locking all-fiber laser. After utilizing an orthogonal polarization method for complete incoherence and a high-precision all-fiber optical delay line (ODL) for rigorous time synchronization, the pulsed fundamental mode (LP) and the pulsed vortex beam (VB) are superimposed to generate a pulsed flat-top beam.
View Article and Find Full Text PDFHybrid organic-inorganic perovskites exhibit significant nuclear quantum effects (NQEs) due to their light hydrogen atoms. By performing ring polymer molecular dynamics, ab initio molecular dynamics, and nonadiabatic molecular dynamics simulations on the MHyPbBr (MHy = CHNHNH) perovskites, we demonstrate that NQEs stabilize the lattice by suppressing atomic motions and accelerate nonradiative charge recombination. This stabilization arises from the synergistic effects of the Pb-N coordination bonds and N-H···Br hydrogen bonds, which enhance organic-inorganic interactions.
View Article and Find Full Text PDFThe development of highly efficient and cost-effective nonprecious metal catalysts for the selective hydrogenation of halogenated nitroarenes is very appealing yet challenging. Here, we demonstrate that the hydrogenation activity and selectivity of Co single-atom catalyst (SAC) can be tuned by tailoring the structure of second coordination sphere via P doping. As revealed by synchrotron radiation-based X-ray absorption spectroscopy characterizations, such a P doping on N-coordinated Co SAC results in the unsymmetric Co-NP coordination structure.
View Article and Find Full Text PDFJ Hazard Mater
November 2024
Epigenetics plays an important role in plant growth and development and in environmental adaptation. Alfalfa, an important forage crop, is rich in nutrients. However, little is known about the molecular regulatory mechanisms underlying the response of alfalfa to cadmium (Cd) stress.
View Article and Find Full Text PDF