Regio-isomerization Optimization Strategy for Photosensitizers: Achieving Ultrahigh Type I Reactive Oxygen Species Generation to Enhance Cancer Photoimmunotherapy.

Phototherapy, renowned for its noninvasiveness, is widely employed in tumor treatment. However, the tumor microenvironment is usually hypoxic, with insufficient reactive oxygen species (ROS) production, severely limiting its application. Herein, we introduce a regio-isomerization optimization strategy and have synthesized four regio-isomeric photosensitizers featuring a donor-acceptor (D-A) configuration by tactically varying the linkage sites between D and A.

p53 activates circASCC3 to repress R-loops and enhance resistance to chemotherapy.

The tumor suppressor p53 can trigger tumor resistance to chemotherapy by facilitating DNA damage repair and maintaining genomic integrity. Here, we report that a p53-induced circular RNA circASCC3 promotes chemotherapeutic resistance by resolving R-loops. Our results reveal that p53 directly activates the transcription of , the host gene of circASCC3.

Patterns and outcomes of early and late recurrence after hepatectomy for hepatocellular carcinoma with microvascular invasion: a multicenter study in China.

Background: A few studies focus on the long-term outcomes and surveillance strategies for patients with hepatocellular carcinoma (HCC) and microvascular invasion (MVI) who experience postoperative recurrence. The aim of this study was to explore the patterns and prognosis of early and late recurrence (ER and LR) after hepatectomy of such patients.

Methods: Consecutive patients with HCC and MVI after hepatectomy from 26 centers in China from 2009 to 2020 were included.

Transcriptome analysis and reverse engineering verification of SNZ3 and Pho3 revealed the mechanism of adaptive laboratory evolution to increase the yield of tyrosol in Saccharomyces cerevisiae strain S26-AE2.

Background: Tyrosol is an important drug precursor, and Saccharomyces cerevisiae is one of the main microorganisms that produces tyrosol. Although excessive metabolic modification increases the production of tyrosol, it also causes a decrease in the growth rate of yeast. Therefore, this study attempted to restore the growth of S.

Transfer learning radiomic model predicts intratumoral tertiary lymphoid structures in hepatocellular carcinoma: a multicenter study.

Background: Intratumoral tertiary lymphoid structures (iTLS) in hepatocellular carcinoma (HCC) are associated with improved survival and may influence treatment decisions. However, their non-invasive detection remains challenging in HCC. We aim to develop a non-invasive model using baseline contrast-enhanced MRI to predict the iTLS status.

EGCG inhibits tobacco smoke-promoted proliferation of lung cancer cells through targeting CCL5.

Background: The occurrence and development of cancer are deeply intertwined with chronic inflammatory processes. Epigallocatechin gallate (EGCG), the most pharmacologically potent catechin derived from tea, has garnered attention for its anti-inflammatory and anti-carcinogenic properties. However, the molecular mechanisms through which EGCG modulates tobacco smoke (TS)-induced inflammatory responses in lung carcinogenesis remain incompletely elucidated.

Sleep Deprivation and Subchronic Arsenite Exposure Synergistically Induced Skeletal Muscle Aging by Disrupting Melatonin and Cortisol Secretion in Mice.

In recent years, the influence of environmental factors on organismal aging has garnered increasing attention. Studies have shown that sleep deprivation and environmental pollutants could accelerate the emergence of multiple organismal aging phenotypes. In addition, studies have shown that chronic exposure to sodium arsenite (iAs) induces skeletal muscle atrophy and the inhibition of melatonin secretion in rats.

HMGCL activates autophagy in osteosarcoma through β-HB mediated inhibition of the PI3K/AKT/mTOR signaling pathway.

Background: 3-hydroxy-3-methylglutaryl-coenzymOHBe A(HMG-CoA) lyase (HMGCL) catalyzes the cleavage of HMG-CoA into acetyl-CoA and acetoacetic acid and serves as a rate-limiting enzyme in the metabolism of ketone bodies. While HMGCL is involved in various biological processes, its specific role in osteosarcoma remains unclear.

Methods: Using data from a public database of osteosarcoma patients, we investigated the expression and prognostic value of HMGCL.

Functionalized Docetaxel Probes for Refined Visualization of Mitotic Spindles by Expansion Microscopy.

Visualizing the ultrastructure of mitotic spindles, the macromolecular machines that segregate chromosomes during mitosis, by fluorescence imaging remains challenging. Here we introduce an azido- and amino-functionalized docetaxel probe, which upon labeling of microtubules can be fixed, click-labeled and linked into hydrogels. The new probe is particularly useful for super-resolution imaging of dense microtubule structures in mitotic spindles.

A Multifunctional Nanodelivery System Modified by Fusion Peptides Acts as Teriparatide Carrier for Noise-Induced Hearing Loss Therapy.

Noise-induced hearing loss (NIHL) is among the most poorly treated diseases due to irreversible damage to hair cells. Reactive oxygen species contribute to NIHL pathogenesis by injuring the inner ear hair cells. Teriparatide (PTH1-34) exerts antioxidant properties in the context of osteoporosis.

Engineering Titanium Dioxide/Titanocene-Polysulfide Interface for Flexible, Optical-Modulated, and Thermal-Tolerant Multilevel Memristor.

Multifunctional memristors with a high memory density, low power consumption, flexibility, programmability, and environmental robustness are essential for next-generation memories. In this work, a titanocene-polysulfide complex (CpTiS) with strong S···S interactions and hydrogen bonds was synthesized and integrated with TiO to create a novel Cu/TiO/CpTiS/Ag memristor. This device shows bipolar nonvolatile memory performance with a remarkable ON/OFF ratio (10), low switching voltages (, -0.

Exploring the effect of chlorogenic acid on oxidative stress and autophagy in dry eye mice via the AMPK/ULK1 pathway.

Dry eye disease (DED) is closely associated with oxidative stress (OS); its high prevalence and the limitations of current treatments highlight the need for highly effective antioxidants. Chlorogenic acid (CGA) can upregulate the activity of antioxidant enzymes, hinder the process of lipid peroxidation, and exert potent antioxidant effects. In this study, we established an OS-induced DED mouse model to investigate the protective effect and mechanism of CGA against OS-induced DED.

Finite Element Analysis of Proximal Femoral Bionic Nail (PFBN), Proximal Femoral Nail Antirotation and InterTan for Treatment of Reverse Obliquity Intertrochanteric Fractures.

Objective: Reverse obliquity intertrochanteric fracture is an unstable type of fracture. Current guidelines recommend intramedullary fixation, but there are still complications such as screw removal, hip varus, nail withdrawal, and nail fracture. The objective of this study was to use finite element analysis to compare the biomechanical properties of the novel proximal femoral bionic nail (PFBN), proximal femoral nail antirotation (PFNA), and combined compression interlocking intramedullary nail (InterTan) in the treatment of reverse obliquity intertrochanteric fractures (AO/OTA 31-A3.

Morphological map of the proximal ulna bare area: a computer-assisted anatomical study in relation to olecranon osteotomy.

Background: The bare area is defined as a transverse region within the trochlear notch, serving as an optimal entry point for olecranon osteotomy due to the absence of articular cartilage coverage. However, there is limited research on the morphology and location of the bare area, and there is a lack of intuitive visual description. Thus, the purpose of this study is to delineate anatomical features of the bare area and visualize its morphology and refine the olecranon osteotomy approach.

Effects of on Metabolites and Flavors in Synthetic Microbiota During Baijiu Fermentation.

The distinctive flavor and aroma of Chinese baijiu are closely linked to the microorganisms involved in the fermentation process. , a dominant species in the fermentation of Chinese baijiu, has become a prominent research focus. In this study, we selected well-characterized pure cultures of microorganisms to construct diverse chassis microflora.

Neutrophil Extracellular Traps Drive Kidney Stone Formation.

Introduction: This study aims to explore the contribution of neutrophil extracellular traps (NETs) to kidney stones.

Methods: The microarray data from GSE73680 and bioinformatic analysis were applied to identify differentially expressed genes in patients with kidney stones. A rat model of kidney stones was established through ethylene glycol and ammonium chloride administration.

Mechanism and application of mesenchymal stem cells and their secreting extracellular vesicles in regulating CD4T cells in immune diseases.

Mesenchymal stem cells (MSCs) show significant promise in treating immune diseases due to their ability to differentiate into various cell types and their immunomodulatory properties. However, the mechanisms by which MSCs regulate CD4T cells, essential for immune responses, are not yet fully understood. This study aims to provide a comprehensive overview of how MSCs and their secreted extracellular vesicles (EVs) modulate CD4T cells in immune diseases.

Deep Learning-Based Quantification of Adenoid Hypertrophy and Its Correlation with Apnea-Hypopnea Index in Pediatric Obstructive Sleep Apnea.

Purpose: This study aims to develop a deep learning methodology for quantitative assessing adenoid hypertrophy in nasopharyngoscopy images and to investigate its correlation with the apnea-hypopnea index (AHI) in pediatric patients with obstructive sleep apnea (OSA).

Patients And Methods: A total of 1642 nasopharyngoscopy images were collected from pediatric patients aged 3 to 12 years. After excluding images with obscured secretions, incomplete adenoid exposure, 1500 images were retained for analysis.

Research on the influence of loading rate on the dynamic initiation fracture toughness of CMDB propellant.

In the field of gun launched missile extended range rocket, the propellant grain in the rocket needs to withstand significant launch loads during their firing phase, and also bear the high pressure caused by ignition, and the impact of launch overloads and ignition shocks on the structural integrity of propellants becomes very important. So this work investigated the dynamic initiation fracture toughness of the composite modified double-base (CMDB) propellant by both experiments and numerical simulations. The dynamic mechanical properties test of the cracked straight through flattened Brazilian disc (CSTFBD) specimens were conducted using a modified Split Hopkinson pressure bar (SHPB).

Multicenter retrospective study on advancements in diagnosis and laparoscopic treatment of hepatic echinococcosis in Xinjiang China.

With the advancement of precise hepatobiliary surgery concepts, the diagnostic and therapeutic approaches for hepatic echinococcosis have undergone significant transformations. However, whether these changes have correspondingly improved patient outcomes remains unclear. A retrospective analysis of these changes will provide crucial guidance for the prevention and treatment of hepatic echinococcosis.

Characterization of the effect of low-concentration sodium selenite on the microstructure and quality of yeast-leavened steamed bread using X-ray computed tomography.

Dough fermentation is an effective method for selenium conversion. This study investigated the effects of low NaSeO concentrations on the morphology, texture, fermentation properties, Se species, Se bioaccessibility, and antioxidant capacity of two types of yeast-leaved steamed bread. The results indicated that NaSeO did not significantly affect the specific volume; but it did result in increased hardness.

Sequence-Specific Minor Groove Binders in Labeling and Single-Molecule Analysis of DNA.

The ability to address specific sequences within DNA is of tremendous interest in biotechnology and biomedicine. Various technologies have been established over the past few decades, such as nicking enzymes and methyltransferase-directed sequence-specific labeling, transcription activator-like effector nucleases (TALENs), the CRISPR-Cas9 system, and polyamides of heterocycles as sequence-specific DNA minor groove binders. Pyrrole-imidazole polyamides have been reported to recognize predetermined DNA sequences, and some successful attempts have demonstrated their potential in regulating gene expression.

Manipulating p-π Resonance through Methoxy Group Engineering in Covalent Organic Frameworks for an Efficient Photocatalytic Hydrogen Evolution.

Kinetic factors frequently emerge as the primary constraints in photocatalysis, exerting a critical influence on the efficacy of polymeric photocatalysts. The diverse conjugation systems within covalent organic frameworks (COFs) can significantly impact photon absorption, energy level structures, charge separation and migration kinetics. Consequently, these limitations often manifest as unsatisfactory kinetic behavior, which adversely affects the photocatalytic activity of COFs.

Semi-rational design and modification of phosphoketolase to improve the yield of tyrosol in .

Tyrosol is an important component of pharmaceuticals, nutraceuticals, and cosmetics, and their biosynthetic pathways are currently a hot research topic. d-Erythrose 4-phosphate is a key precursor for the biosynthesis of tyrosol in . Hence, the flux of d-Erythrose 4-phosphate determined the yield of tyrosol synthesis.

Enhanced multistress tolerance of with the sugar transporter-like protein Stl1 mutation in the presence of glycerol.

Unlabelled: During microbial industrial production, microorganisms often face diverse stressors, including organic solvents, high salinity, and high sugar levels. Enhancing microorganism tolerance to such stresses is crucial for producing high-value-added products. Previous studies on the mechanisms of 2-phenylethanol (2-PE) tolerance in revealed a potential connection between the sugar transporter-like protein (Stl1) mutation (F427L) and increased tolerance to high sugar and salt stress, suggesting a broader role in multistress tolerance.