Synthesis of Novel Benzofuran Spiro-2-Pyrrolidine Derivatives via [3+2] Azomethine Ylide Cycloadditions and Their Antitumor Activity.

A synthetic strategy of a three-component spiro-pyrrolidine compound based on benzofuran via an [3+2] azomethine ylide cycloaddition reaction is reported herein. Under mild optimal conditions, this reaction can quickly produce potentially bioactive compounds with a wide range of substrates, high yield, and simple operation. The desired products were obtained with a yield of 74-99% and a diastereomeric ratio (dr) of >20:1.

Tetrahydroberberrubine improves hyperlipidemia by activating the AMPK/SREBP2/PCSK9/LDL receptor signaling pathway.

Hyperlipidemia is a major risk factor for hypertension, coronary heart disease, diabetes and stroke, triggering an intensified research efforts into its prevention and treatment. Tetrahydroberberrubine (THBru) is a derivative of berberine (BBR) that has been shown to have higher bioavailability and lower toxicity compared to its parent compound. However, its impact on hyperlipidemia has not been fully explored.

Ferredoxin 2 Is Critical for Tumor Suppression and Lipid Homeostasis but Dispensable for Embryonic Development.

Ferredoxin 1 and 2 (FDX1/2) constitute an evolutionarily conserved FDX family of iron-sulfur cluster-containing proteins. FDX1/2 are cognate substrates of ferredoxin reductase and serve as conduits for electron transfer from NADPH to a set of proteins involved in biogenesis of corticosteroids, hemes, iron-sulfur cluster, and lipoylated proteins. Recently, we showed that Fdx1 is essential for embryonic development and lipid homeostasis.

Innovative Progress of LSPR-Based Dark-Field Scattering Spectral Imaging in the Biomedical Assay at the Single-Particle Level.

The growing demand for detection and sensing in the biomedical field is placing higher demands on technology. In clinical testing, it is expected to be able to realize both rapid large-field imaging and analysis of single particles (or single molecules or single cells), and it is expected to be able to grasp both the unique individuality of single particles in time and space during the complex reaction process, as well as the regular correlation between single particles in the same population distribution. Supported and promoted by the theory of localized surface plasmon resonance (LSPR), dark-field microscopy, as a single-particle optical imaging technique with a very high signal-to-noise ratio, provides a powerful new means to address the above clinical detection needs.

Kidney Gastrin/CCKBR Attenuates Type 2 Diabetes Mellitus by Inhibiting SGLT2-Mediated Glucose Reabsorption through Erk/NF-κB Signaling Pathway.

Background: Both sodium-glucose cotransporters (SGLTs) and Na+/H+ exchangers (NHEs) rely on a favorable Na-electrochemical gradient. Gastrin, through the cholecystokinin B receptor (CCKBR), can induce natriuresis and diuresis by inhibiting renal NHEs activity. The present study aims to unveil the role of renal CCKBR in diabetes through SGLT2-mediated glucose reabsorption.

Impact of menopausal status on cognitive function in female papillary thyroid carcinoma patients: a longitudinal propensity score matched study.

Purpose: Previous research has documented cognitive deficits in survivors of papillary thyroid carcinoma (PTC).Our longitudinal study with large sample size, aims to assess the impact of menopausal status on cognitive function, elucidate related factors of cognitive impairment, and chart the trajectory of cognitive changes over time in female PTC patients.

Methods: In this longitudinal study, we administered the Montreal Cognitive Assessment (MoCA) to 322 female PTC patients over 40 years old, before surgery and at 3 and 6 months after surgery.

Construction, structural modification, and bioactivity evaluation of pentacyclic triterpenoid privileged scaffolds in active natural products.

Pentacyclic triterpenoids, as important representatives of natural products, have garnered widespread attention due to their diverse biological activities, including anti-inflammatory, antiviral, and antitumor effects. Oleanolic acid (OA), betulinic acid (BA), ursolic acid (UA), triptolide, and glycyrrhetinic acid (GA) are typical examples of pentacyclic triterpenoids. Despite their significant biological activities, their poor water solubility and low bioavailability have limited further development and application.

Proteinase K impact on anaerobic co-digestion of modified biodegradable plastic and food waste: Step-by-step analysis with microorganism.

This study was designed to explore the key impact of Proteinase K (PK) on every step of anaerobic co-digestion. The results of step-by-step experiments indicated that PK promoted the hydrolysis of biodegradable plastic by initiating self-hydrolysis reactions, directly promoting the hydrolysis step of anaerobic co-digestion. Subsequently, PK indirectly promoted the acidogenesis and acetogenesis steps by impacting the proliferation of acid-producing bacteria.

Global, Regional and National Burden of Maternal Obstructed Labour and Uterine Rupture, 1990-2021: Global Burden of Disease Study 2021.

Background: Maternal obstructed labour and uterine rupture (MOLUR) are among the major maternal labour complications that threaten maternal and child health.

Objective: The objective of this study was to systematically analyse the global burden of MOLUR using the Global Burden of Disease 2021 (GBD 2021) database to inform further improvements in maternal-related public health policies.

Methods: Incidence and disability-adjusted life-year (DALY) data on MOLUR from 1990 to 2021 were collected in the GBD 2021.

Giant Domain Wall Anomalous Hall Effect in a Layered Antiferromagnet EuAl_{2}Si_{2}.

Generally, the dissipationless Hall effect in solids requires time-reversal symmetry breaking (TRSB), where TRSB induced by external magnetic field results in the ordinary Hall effect, while TRSB caused by spontaneous magnetization gives rise to the anomalous Hall effect (AHE) which scales with the net magnetization. The AHE is therefore not expected in antiferromagnets with vanishing small magnetization. However, large AHE was recently observed in certain antiferromagnets with noncollinear spin structure and nonvanishing Berry curvature.

Molecular Ultrasound Imaging With Clinically Translatable cRGD-Coated Microbubbles to Assess αvβ3-Integrin Expression in Inflammatory Bowel Disease.

Objectives: Inflammatory bowel disease (IBD) subdivides into Crohn disease (CD) and ulcerative colitis (UC), and is characterized by unpredictable periods of inflammation and results in significant patient suffering and even death. Conventional diagnostic methods, for example, colonoscopy, computed tomography, or magnetic resonance imaging, have limitations such as invasiveness, patient discomfort, and limited sensitivity and accuracy. Therefore, we propose ultrasound molecular imaging (USMI) to detect and characterize IBD.

Myeloid Drp1 deficiency limits revascularization in ischemic muscles via inflammatory macrophage polarization and metabolic reprograming.

Macrophage plays a crucial role in promoting perfusion recovery and revascularization after ischemia through anti-inflammatory polarization, a process essential for the treatment of peripheral arterial disease (PAD). Mitochondrial dynamics, particularly regulated by the fission protein DRP1, are closely linked to macrophage metabolism and inflammation. However, the role of DRP1 in reparative neovascularization remains unexplored.

An E2 ubiquitin-conjugating enzyme links diubiquitinated H2B to H3K27M oncohistone function.

The H3K27M oncogenic histone (oncohistone) mutation drives ~80% of incurable childhood brain tumors known as diffuse midline gliomas (DMGs). The major molecular feature of H3K27M mutant DMGs is a global loss of H3K27 trimethylation (H3K27me3), a phenotype conserved in (). Here, we perform unbiased genome-wide suppressor screens in expressing H3K27M and isolate 20 suppressors, all of which at least partially restore H3K27me3.

The impact of immune markers on thymectomy prognosis in thymoma-myasthenia gravis.

Background: Research shows that thymoma-associated myasthenia gravis (MG) patients exhibit immunological imbalances, including anomalies in immune indicators. The link between these abnormalities and thymectomy outcomes is not well-understood. This study aims to assess the impact of immunological markers like T helper (Th)17 cells, regulatory T (Treg) cells, CD4 T, CD8 T cells, immunoglobulin (Ig)G, IgA, IgM, IgE, C-reactive protein (CRP), complement C3, and complement C4 on MG prognosis post-thymectomy.

Adaptive Opto-Thermal-Hydrodynamic Manipulation and Polymerization (AOTHMAP) for 4D Colloidal Patterning.

Precision colloidal patterning holds great promise in constructing customizable micro/nanostructures and functional frameworks, which showcases significant application values across various fields, from intelligent manufacturing to optoelectronic integration and biofabrication. Here, a direct 4D patterning method via adaptive opto-thermal-hydrodynamic manipulation and polymerization (AOTHMAP) with single-particle resolution is reported. This approach utilizes a single laser beam to automatically transport, position, and immobilize colloidal particles through the adaptive utilization of light-induced hydrodynamic force, optical force, and photothermal polymerization.

Relative burden of cancer and noncancer mortality among long-term survivors of differentiated thyroid cancer in the US.

Background: Limited information is available regarding the relative risks of cancer-specific mortality and noncancer-specific mortality among long-term survivors with differentiated thyroid cancer (DTC).

Methods: In this retrospective study, nationwide data from the Surveillance, Epidemiology, and End Results database (1992-2020) were utilized. The Accelerated Failure Time Model was applied to calculate Survival Time Ratios (TR), with the primary focus on mortality resulting from DTC.

Twisted-Planar Molecular Engineering with Sonication-Induced J-Aggregation To Design Near-Infrared J-Aggregates for Enhanced Phototherapy.

J-aggregates show great promise in phototherapy, but are limited to specific molecular skeletons and poor molecular self-assembly controllability. Herein, we report a twisted-planar molecular strategy with sonication-induced J-aggregation to develop donor-acceptor (D-A) type J-aggregates for phototherapy. With propeller aggregation-induced emission (AIE) moieties as the twisted subunits and thiophene as the planar π-bridge, the optimal twisted-planar π-interaction in MTSIC induces appropriate slip angle and J-aggregates formation, redshifting the absorption from 624 nm to 790 nm.

Event-Triggered Attitude Consensus of Multiple Rigid Body Systems With Prescribed Performance.

The event-triggered almost global attitude consensus problem is considered in this article for multiple rigid body systems with prescribed performance. Two kinds of attitude consensus protocols using axis-angle vectors are proposed at the kinematic level with different prescribed performance constraints. The first protocol aims to achieve the event-triggered attitude consensus almost globally under jointly connected graphs.

Unravelling pharmacological mechanisms and effects of Tianma Siwu Decoction-derived compounds on ischemic stroke by multidimensional network pharmacological analysis.

Ethnopharmacological Relevance: Ischemic stroke (IS) a complex pathological event emerging as one of the most serious threats with huge economic impact in the 21st century. Following IS, multiple cascades and pathways are stimulated, culminating in long term consequences. One of Chinese Traditional Medicine, Tianma Siwu Decoction (TSD), is known to have sedative-hypnotic, anticonvulsant and anti-inflammatory effects, which is usually used to treat migraine and ischemic stroke, but its potential pharmacological mechanism remains unclear.

Gut microbiota dysbiosis in ankylosing spondylitis: a systematic review and meta-analysis.

Background: Ankylosing spondylitis (AS) is a connective tissue disease that primarily affects spinal joints, peripheral joints, and paravertebral soft tissues, leading to joint stiffness and spinal deformity. Growing evidence has implicated gut microbiota in the regulation of AS, though the underlying mechanisms remain poorly understood.

Methods: We conducted a comprehensive search of PubMed, Embase, Web of Science, the Cochrane Library, MEDLINE, Wanfang Data, China Science and Technology Journal Database (VIP), and China National Knowledge Internet (CNKI) databases from the time the databases were created until 30 July 2023.

Utidelone-based therapy in advanced or metastatic solid tumors after failure of standard therapies: a prospective, multicenter, single-arm trial.

Treatment options are limited for tumors after failure of standard therapies. Utidelone (UTD1), a novel microtubule stabilizer, given via 5 days intermittent infusion, has demonstrated high activity in heavily pretreated metastatic breast cancer, while its efficacy in other cancers was unclear. Peripheral neuropathy is a common and severe adverse event (AE) of UTD1.