As the only gateway governing nucleocytoplasmic transport, the nuclear pore complex (NPC) maintains fundamental cellular processes and deteriorates with age. However, the study of age-related roles of single NPC components remains challenging owing to the complexity of NPC composition. Here we demonstrate that the master energy sensor, AMPK, post-translationally regulates the abundance of the nucleoporin NPP-16/NUP50 in response to nutrient availability and energetic stress.
View Article and Find Full Text PDFThe choroid plexus (CP) serves as the primary source of cerebrospinal fluid (CSF). The blood-CSF barrier, composed of tight junctions among the epithelial cells in the CP, safeguards CSF from unrestricted exposure to bloodborne factors. This barrier is thus indispensable to brain homeostasis and is associated with age-related neural disorders.
View Article and Find Full Text PDFCrosslinking amine-rich biomolecules with aldehydes, such as paraformaldehyde (PFA) and glutaraldehyde (GA), is a widely used method for biomaterial fabrication and cell fixation. In this study, we introduce homobifunctional photocaged 2-butene-1,4-dials (bis-PBDAs) as novel amine-reactive photo-crosslinkers. Compared to PFA and GA, bis-PBDAs are inherently less toxic.
View Article and Find Full Text PDFThe grass carp () is highly susceptible to infections caused by species, particularly and . However, the immunological mechanisms underlying co-infection by these pathogens remain largely uncharted. This study investigated the pathogenesis and host immune response in grass carp following concurrent infection with and .
View Article and Find Full Text PDFOsteoarthritis (OA) is a prevalent degenerative disease that lacks effective therapy. Oxidative stress is one of the major factors contributing to OA; however, treatments targeting oxidative stress are still lacking. In the current study, we established an oxidative stress-induced cell death model in chondrocytes and screened drugs that may suppress oxidative stress-induced cell death.
View Article and Find Full Text PDFActa Biochim Biophys Sin (Shanghai)
December 2024
Treating psoriasis presents a major clinical challenge because of the limitations associated with traditional topical glucocorticoid therapy. This study introduced a drug delivery system utilizing zinc-doped mesoporous silica nanoparticle (Zn-MSN) and microneedle (MN), designed to enhance drug utilization for prolonged anti-inflammatory and anti-itch effects. The MN system facilitated the transdermal delivery of betamethasone dipropionate (BD), allowing its slow release.
View Article and Find Full Text PDFIntervertebral disc degeneration (IVDD) is a major contributor to low back pain (LBP), while LBP is the leading cause of disability. However, the effective pharmacological interventions for IVDD are still lacking. Studies have elucidated that ferroptosis plays a crucial role in the pathogenesis of IVDD.
View Article and Find Full Text PDFRobots need to sense information about the external environment before moving, which helps them to recognize and understand their surroundings so that they can plan safe and effective paths and avoid obstacles. Conventional algorithms using a single sensor cannot obtain enough information and lack real-time capabilities. To solve these problems, we propose an information perception algorithm with vision as the core and the fusion of LiDAR.
View Article and Find Full Text PDFAlthough research on photodynamic therapy (PDT) of malignant tumor has made considerable progress in recent years, it is a remaining challenge to extend PDT to the second near-infrared window (NIR-II) along with real-time and accurate NIR-II fluorescence imaging to determine drug enrichment status and achieve high treatment efficacy. In this work, lanthanide nanoparticles (Ln NPs)-based nanoplatform (LCR) equipped with photosensitizer Chlorin e6 (Ce6) and targeting molecular NH-PEG-cRGDfK are developed, which can achieve NIR-II photodynamic therapy (PDT) and NIR-II fluorescence imaging by dual channel excitation. Under 808 nm excitation, Nd in the outer layer can absorb the energy and transfer inward to emit strong NIR-II emissions (1064 and 1525 nm).
View Article and Find Full Text PDFTendinitis, characterized by the inflammation of tendons, poses significant challenges in both diagnosis and treatment due to its multifaceted etiology and complex pathophysiology. This study aimed to dissect the molecular mechanisms underlying tendinitis, with a particular focus on inflammasome-related genes and their interactions with the immune system. Through comprehensive gene expression analysis and bioinformatics approaches, we identified distinct expression profiles of inflammasome genes, such as NLRP6, NLRP1, and MEFV, which showed significant correlations with immune checkpoint molecules, indicating a pivotal role in the inflammatory cascade of tendinitis.
View Article and Find Full Text PDFBackground: Acute type A aortic dissection is a dangerous disease that threatens public health. In recent years, with the progress of medical technology, the mortality rate of patients after surgery has been gradually reduced, leading that previous prediction models may not be suitable for nowadays. Therefore, the present study aims to find new independent risk factors for predicting in-hospital mortality and construct a nomogram prediction model.
View Article and Find Full Text PDFThis study investigates innovative approaches to improve the quality and aroma characteristics of Muscat Hamburg wine production by substituting the conventional yeast with an efficient fermentation strain of . The typical use of in Muscat Hamburg wine often leads to uniformity and prolonged processing times, requiring subsequent malolactic fermentation to degrade excessive malic acid. The study advocates for the replacement of with a specific strain, , isolated from the fermented grains of sauce-flavor Baijiu, a Chinese spirit.
View Article and Find Full Text PDFRecent advancements in nanomaterials have enabled the application of nanotechnology to the development of cutting-edge sensing and actuating devices. For instance, nanostructures' collective and predictable responses to various stimuli can be monitored to determine the physical environment of the nanomaterial, such as temperature or applied pressure. To achieve optimal sensing and actuation capabilities, the nanostructures should be controllable.
View Article and Find Full Text PDFIn the context of an aging population, the concept of peaceful end-of-life care has gained increasing significance as an essential component of individuals' fundamental well-being. This underscores the importance of researching and developing hospice care facilities and service systems dedicated to providing a tranquil resting environment. This study focuses on selected hospice care buildings, examining their service model evolution and architectural design.
View Article and Find Full Text PDFA miniature laser with linear polarization is a long sought-after component of photonic integrated circuits. In particular, for multiwavelength polarization lasers, it supports simultaneous access to multiple, widely varying laser wavelengths in a small spatial region, which is of great significance for advancing applications such as optical computing, optical storage, and optical sensing. However, there is a trade-off between the size of small-scale lasers and laser performance, and multiwavelength co-gain of laser media and multicavity micromachining in the process of laser miniaturization remain as significant challenges.
View Article and Find Full Text PDFBackground: Whether stage T1N2-3M0 non-small cell lung cancer (NSCLC) patients could benefit from surgery and the optimal surgical procedure have remained controversial and unclear. This study aimed to investigate whether stage T1N2-3M0 NSCLC can benefit from different surgery types and develop a tool for survival prediction.
Methods: The Surveillance, Epidemiology, and End Results (SEER) database was used to identify patients diagnosed with stage T1N2-3M0 NSCLC between 2000 and 2015.
Starch and alcohol serve as pivotal indicators in assessing the quality of lees fermentation. In this paper, two hyperspectral imaging (HSI) techniques (visible-near-infrared (Vis-NIR) and NIR) were utilized to acquire separate HSI data, which were then fused and analyzed toforecast the starch and alcohol contents during the fermentation of lees. Five preprocessing methods were first used to preprocess the Vis-NIR, NIR, and the fused Vis-NIR and NIR data, after which partial least squares regression models were established to determine the best preprocessing method.
View Article and Find Full Text PDFFor the application of high-frequency current detection in power systems, such as very fast transient current, lightning current, partial discharge pulse current, etc., current sensors with a quick response are indispensable. Here, we propose a high-frequency magnetoelectric current sensor, which consists of a PZT piezoelectric ceramic and Metglas amorphous alloy.
View Article and Find Full Text PDFThe Beckmann rearrangement of ketoximes to their corresponding amides, using a Brønsted acid-mediated fragmentation and migration sequence, has found wide-spread industrial application. We postulated that the development of a methodology to access ylideneamino sulfates using tributylsulfoammonium betaine (TBSAB) would afford isolable Beckmann-type intermediates and competent partners for subsequent rearrangement cascades. The ylideneamino sulfates generated, isolated as their tributylammonium salts, are sufficiently activated to undergo Beckmann rearrangement without additional reagent activation.
View Article and Find Full Text PDFThe (sp)-aryl sulfonate functional group is found in bioactive molecules, but their synthesis can involve extreme temperatures (>190 °C or flash vacuum pyrolysis) and strongly acidic reaction conditions. Inspired by the 1917 Tyrer industrial process for a sulfa dye that involved an aniline (sp)-SO intermediate to a (sp)-SO rearranged product, we investigated tributylsulfoammonium betaine (TBSAB) as a milder -sulfamation to -sulfonate relay reagent. Initial investigations of a stepwise route involving TBSAB on selected anilines at room temperature enabled the isolation of (sp)-sulfamate.
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