Single-Cell Transcriptomics Uncovers Core Signature for Regulating Mitochondrial Homeostasis During Testicular Ageing.

Testicular ageing is accompanied by a series of morphological changes, while the features of mitochondrial dysfunction remain largely unknown. Herein, we observed a range of age-related modifications in testicular morphology and spermatogenic cells, and conducted single-cell RNA sequencing on young and old testes in Drosophila. Pseudotime trajectory revealed significant changes in germline subpopulations during ageing.

Chromatin licensing and DNA replication factor 1 as a potential prognostic and diagnostic biomarker for gastric cancer.

Accurate and timely genetic material replication is essential for preserving genomic integrity. The replication process begins with chromatin licensing and DNA replication factor 1 (CDT1). It has been demonstrated that dysregulated CDT1 expression causes genomic instability, damages DNA, and may even cause cancer.

Root-associated microbial diversity and metabolomics in maize resistance to stalk rot.

As one of the three major food crops in the world, maize plays a significant role in alleviating the food crisis. Maize stalk rot can reduce maize yield and mechanical harvesting efficiency. In addition, mycotoxins such as Deoxynivalenol (DON) and Zearalenone (ZEN) produced by maize stalk rot pathogens can also harm livestock and human health.

DNA metabarcoding reveals diet diversity and niche partitioning by two sympatric herbivores in summer.

Background: Food provides essential nutrients and energy necessary for animals to sustain life activities. Accordingly, dietary niche analysis facilitates the exploration of foraging strategies and interspecific relationships among wildlife. The vegetation succession has reduced understory forage resources (.

Gelatin methacryloyl hydrogel encapsulating molybdenum-inspired macrophage-derived exosomes accelerates wound healing via immune regulation and angiogenesis.

Clinically, abnormal or delayed wound healing leads to functional disorders and disfiguring scars. A well-vascularized environment and an anti-inflammatory immune state are crucial during the healing process. Molybdenum (Mo) is an essential element for the human body in modulating metabolism, immune function and tissue repair.

Craniofacial Development Characteristics in Children with Obstructive Sleep Apnea for Establishment and External Validation of the Prediction Model.

Purpose: Aimed to analyze the developmental characteristics of craniofacial structures and soft tissues in children with obstructive sleep apnea (OSA) and to establish and evaluate prediction model.

Methods: It's a retrospective study comprising 747 children aged 2-12 years (337 patients and 410 controls) visited the Department of Otolaryngology-Head and Neck Surgery, the Second Affiliated Hospital of Xi'an Jiaotong University (July 2017 to March 2024). Lateral head radiographs were obtained to compare the cephalometric measurements.

Dipropyl phthalate induces craniofacial chondrogenic defects in zebrafish embryos.

Dipropyl phthalate (DPRP), a plasticizer commonly utilized in the plastics industry, has been identified in food and the environment and has the potential to present a hazard to human health and the environment. In this study, the first comprehensive evaluation of DPRP-induced craniofacial chondrogenic defects was conducted using a zebrafish model. Zebrafish embryos were exposed to 1, 2, and 4 mg/L DPRP from 6 to 96 h post-fertilization.

Paradigm Transformation of Global Health Data Regulation: Challenges in Governance and Human Rights Protection of Cross-Border Data Flows.

The growing global exchange of healthcare data requires more cohesive and effective regulatory frameworks to ensure fair access and protect patient privacy. However, cross-border regulatory rules for healthcare data diverge across countries, such as the EU, which highlights personal data rights and restricts cross-border flow of healthcare data through the GDPR, the United States, which emphasizes the free flow of healthcare data trade or services, and China, which emphasizes cross-border regulatory rules for healthcare data at the level of national data security. Such inconsistent policies often impede international medical research collaborations, undermine the effectiveness of telemedicine, and create barriers for healthcare providers to share patient information.

Machine learning helps reveal key factors affecting tire wear particulate matter emissions.

Tire wear particles (TWPs) are generated with every rotation of the tire. However, obtaining TWPs under real driving conditions and revealing key factors affecting TWPs are challenging. In this study, we obtained a TWPs dataset by simulating tire wear process under real driving conditions using a tire wear simulator and custom-designed test conditions.

Phase Separation of CuPd Alloy Nanocatalysts in CO Oxidation.

Alloy nanocatalysts exhibit enhanced activity, selectivity, and stability mainly due to their versatile phases and atomic structures. However, nanocatalysts' "real" functional structures may vary from their as-synthesized status due to the structural and chemical changes during the activation and reaction conditions. Herein, we studied the activated CuPd/CeO nanocatalysts under the CO oxidation reaction featuring an atomic-scale phase separation process, resulting in a notable "hysteresis" in catalyst performance.

Graphene Quantum Dot Sensitized Heterojunctions Induce Tumor-Specific Cuproptosis to Boost Sonodynamic and Chemodynamic Enhanced Cancer Immunotherapy.

Cuproptosis that utilizes copper ionophore to induce programmed cell death holds promise for enhancing the effectiveness of conventional anticancer therapies and triggering efficient adaptive immune responses. However, the non-tumor-specific release of Cu ions can induce cuproptosis and cause irreversible damage to normal tissues. To maximize the therapeutic effects of tumor-specific cuproptosis, this work reports for the first time the regulation of degradation behaviors of Cu-based nanomaterials using graphene quantum dots (GQDs) as a protection layer.

Engineering a live-attenuated porcine reproductive and respiratory syndrome virus vaccine to prevent RNA recombination by rewiring transcriptional regulatory sequences.

Unlabelled: Recombination is a significant factor driving the evolution of RNA viruses. The prevalence and variation of porcine reproductive and respiratory syndrome virus (PRRSV) in China have been increasing in complexity due to extensive interlineage recombination. When this recombination phenomenon occurs in live vaccine strains, it becomes increasingly difficult to prevent and control PRRSV.

Deep Learning-based U-Mamba Model to Predict Differentiated Gastric Cancer using Radiomics Features from Spleen Segmentation.

Objective: This study aimed to develop an automated method for segmenting spleen computed tomography (CT) images using a deep learning model to address the limitations of manual segmentation, which is known to be susceptible to inter-observer variability. Subsequently, a prediction model for gastric cancer (GC) differentiation was constructed alongside radiomics, and a nomogram was generated to investigate its clinical guiding significance.

Methods: This study enrolled 262 patients with pathologically confirmed GC.

An internally validated prognostic nomogram model predicts the stone-free rate following endoscopic combined intrarenal surgery for renal stones.

Background: Here, we aim to develop and validate a viable prognostic nomogram model for predicting a stone-free rate of kidney stones patients based on retrospective cohort analysis.

Methods: This is a retrospective study that obtained a continuous cohort from the databases of two hospitals (General Hospital of Southern Theater Command, and Guangdong Second Provincial General Hospital), including 522 patients with kidney stones who underwent Endoscopic Combined Intrarenal Surgery (ECIRS) from January 2015 to December 2022.The characteristics of the primary cohort between the SF (stone-free) and SR (stone residue) groups were identified using single factor and multivariate logistic regression analyses.

METTL3-mediated m6A modifications of NLRP3 accelerate alveolar bone resorption through enhancing macrophage pyroptosis.

Periodontitis (PD) is twice as prevalent in diabetics compared to nondiabetics, and diabetes-associated PD is characterized by increased inflammation and aggravated tissue damage. Pyroptosis has recently been implicated in diabetes-associated PD; however, the underlying mechanisms remain largely unknown, resulting in a lack of effective treatments. In this study, we investigated the role of methyltransferase-like 3 (METTL3) in macrophage pyroptosis and found that it inhibits the osteogenic differentiation of osteoblasts via pyroptotic macrophages in a diabetes-associated periodontitis mouse model.

Buried-guided suture suspension of the alar crus: A minimally invasive method to correct nostril exposure.

Objectives: To introduce a novel technique using the buried-guided suture method for suspending the alar crus to correct nostril exposure in East Asians and to investigate its safety and efficacy.

Methods: Patients with ptotic alar crus and nostril exposure at our clinic were enrolled between December 2011 and December 2023. Via an intranasal incision, the excess skin on the inner side of the nostrils was excised.

Low-Frequency Phonon Dispersion Relation Enabling Stable Cathode from Spent Lithium-Ion Batteries.

Direct recycling technology can effectively solve the environmental pollution and resource waste problems caused by spent lithium-ion batteries. However, the repaired LiNiCoMnO (NCM) black mass by direct recycling technology shows an unsatisfactory cycle life, which is attributed to the formation of spinel/rock salt phases and rotational stacking faults caused by the in-plane and out-of-plane migration of transition metal (TM) atoms during charge/discharge. Herein, local lattice stress is introduced into the regenerated cathode during repair.

Biotransport and toxic effects of micro- and nanoplastics in fish model and their potential risk to humans: A review.

The growing body of scientific evidence suggests that micro- and nanoplastics (MPs/NPs) pose a significant threat to aquatic ecosystems and human health. These particles can enter organisms through ingestion, inhalation, dermal contact, and trophic transfer. Exposure can directly affect multiple organs and systems (respiratory, digestive, neurological, reproductive, urinary, cardiovascular) and activate extensive intracellular signaling, inducing cytotoxicity involving mechanisms such as membrane disruption, extracellular polymer degradation, reactive oxygen species (ROS) production, DNA damage, cellular pore blockage, lysosomal instability, and mitochondrial depolarization.

Association between prenatal exposure to phthalate esters and blood pressure in children aged 3-7 years: A prospective cohort study.

Background: An increasing number of animal studies have indicated that exposure to phthalate esters (PAEs) may cause high blood pressure. However, population-based evidence is limited, particularly for pregnant women and young children.

Objective: To examine the correlation between prenatal exposure to phthalate ester metabolites (mPAEs) and blood pressure in preschool children.

Effects of pyrazosulfuron-ethyl on caudal fin regeneration in zebrafish larvae.

With the widespread application of pesticides, water pollution problems are becoming more and more serious, which is very likely to cause harm to fish. Lower vertebrates, including fish, have the ability to repair damaged tissues. The spread of pesticides in the water may affect their regeneration process after injury, leading to their death, thereby affecting the survival rate of the population.

Impact of occupational stress and musculoskeletal disorders on job satisfaction among Chinese dental hygienists: An observational study.

Dental hygienists in China face unique occupational challenges, with their job satisfaction being pivotal to performance. This study investigates the interplay between job satisfaction and occupational stress, burnout, and musculoskeletal disorders (MSDs) among this group. A cross-sectional survey was conducted involving 21 female dental hygienists from Sir Run Run Shaw Hospital.

The involvement of amyloid-β in the central nervous system regulation underlying sleep deprivation-induced rapid ejaculation in rats.

Background: Although some studies suggest that sleep deprivation may affect ejaculation regulation, related research is limited, and the mechanisms remain unclear.

Aim: This study aimed to explore whether sleep deprivation influences ejaculation regulation through amyloid-beta and to investigate its potential mechanisms.

Materials And Methods: Normal ejaculating rats were randomly distributed into three separate groups for the study, and treated with sleep deprivation combined with saline gavage, sleep deprivation combined with sodium butyrate gavage, and control with saline gavage.

Strategies to enhance greenhouse strawberry yield through honeybee pollination behavior: a simulation study.

Strawberries are a widely cultivated greenhouse crop in China, primarily pollinated by honeybees, in accordance with traditional planting practices and local conditions. Extensive research has demonstrated that cross-pollination benefits numerous strawberry cultivars, leading to enhanced yield through the interplanting of different cultivars. However, the high costs associated with cultivation have hindered systematic research on the design of interplanting strategies.