Spatiotemporal dynamics of early oogenesis in pigs.

Background: In humans and other mammals, the process of oogenesis initiates asynchronously in specific ovarian regions, leading to the localization of dormant and growing follicles in the cortex and medulla, respectively; however, the current understanding of this process remains insufficient.

Results: Here, we integrate single-cell RNA sequencing (scRNA-seq) and spatial transcriptomics (ST) to comprehend spatial-temporal gene expression profiles and explore the spatial organization of ovarian microenvironments during early oogenesis in pigs. Projection of the germ cell clusters at different stages of oogenesis into the spatial atlas unveils a "cortical to medullary (C-M)" distribution of germ cells in the developing porcine ovaries.

Exploration of key genes and pathways in response to submergence stress in red clover (Trifolium pratense L.) by WGCNA.

Background: Submergence stress is a prevalent abiotic stress affecting plant growth and development and can restrict plant cultivation in areas prone to flooding. Research on plant submergence stress tolerance has been essential in managing plant production under excessive rainfall. Red clover (Trifolium pratense L.

Discovery of natural few-layer graphene on the Moon.

Natural few-layer graphene is unambiguously identified from the Chang'e-5 lunar soil samples, which serves as a new platform for investigating extraterrestrial bodies.

Boosting neuronal activity-driven mitochondrial DNA transcription improves cognition in aged mice.

Deciphering the complex interplay between neuronal activity and mitochondrial function is pivotal in understanding brain aging, a multifaceted process marked by declines in synaptic function and mitochondrial performance. Here, we identified an age-dependent coupling between neuronal and synaptic excitation and mitochondrial DNA transcription (E-TC), which operates differently compared to classic excitation-transcription coupling in the nucleus (E-TC). We demonstrated that E-TC repurposes molecules traditionally associated with E-TC to regulate mitochondrial DNA expression in areas closely linked to synaptic activation.

Colonoscopy Screening Behavior in First-Degree Relatives of Colorectal Cancer Patients: A Qualitative Study Based on the Theory of Planned Behavior.

To investigate the factors influencing the colonoscopy screening behavior of first-degree relatives of colorectal cancer patients and to provide a basis for formulating screening intervention strategies. In this study, 15 first-degree relatives of colorectal cancer patients in the Department of Medical Oncology of a tertiary hospital in Baoding City from May to July 2024 were selected as the research subjects, and face-to-face semi-structured interviews were conducted. The theme was analyzed and summarized based on the theory of planned behavior and Colaizzi's 7-step analysis method.

Development and Applications of Organoids in Gynecological Diseases.

Organoids are rapidly self-organizing 3D in vitro cultures derived from pluripotent stem cells (PSCs) or adult stem cells (ASCs) that possess disease-like characteristics with high success rates. Due to their ability to retain tissue structure, biological phenotypes, and genetic information, they have been utilized as a novel in vitro model for disease research. In recent years, scientists have established self-organizing 3D organoids for human endometrium, fallopian tubes, ovaries, and cervix by culturing stem cells with cytokines in 3D scaffolds.

Carbon Dots with Charge Storage Ability Promote the Red Emission of TFB via Carrier Secondary Injection.

Dual-emission light-emitting diodes (DEDs) have great promising applications in medical imaging, optical communication, data storage, and three-dimensional display. The precise material design and advanced packaging technology for the construction of DEDs are still key challenges for practical application. We demonstrate a straightforward strategy to construct DEDs that deviates from traditional approaches, utilizing commercially available luminescent material of poly(9,9-dioctylfluorene---(4-(3-methylpropyl))diphenylamine) (TFB) and carbon dots (CDs).

Does H3K27me3 expression play a role in patients with Blastic plasmacytoid dendritic cell neoplasm? A clinicopathologic analysis of 14 patients.

Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare and aggressive lymphohematopoietic malignancy associated with poor prognosis. We aimed to improve the understanding of BPDCN, explore its prognostic significance, and identify potential therapeutic targets. Data from 14 BPDCN patients were retrospectively collected and analyzed, focusing on their clinicopathological characteristics, diagnostic features, immunophenotype, treatment regimens, and prognostic factors.

Polarized adding method of discrete ordinate approximation for ultraviolet-visible and near-infrared radiative transfer.

The polarization characteristics of atmospheric scattering are important for planetary studies and should not be ignored in radiative transfer simulations. In this study, what we believe to be a new vector radiative transfer model called the polarized adding method of discrete ordinate approximation (POLDDA) is proposed for use in remote sensing applications for ultraviolet-visible and near-infrared spectra. The single-layer radiative transfer process and inhomogeneous multi-layer connection are solved using the discrete ordinate method (DOM) and adding methods, respectively.

Development of a deep learning method to identify acute ischaemic stroke lesions on brain CT.

Background: CT is commonly used to image patients with ischaemic stroke but radiologist interpretation may be delayed. Machine learning techniques can provide rapid automated CT assessment but are usually developed from annotated images which necessarily limits the size and representation of development data sets. We aimed to develop a deep learning (DL) method using CT brain scans that were labelled but not annotated for the presence of ischaemic lesions.

HLA is a potent immunoinflammatory target in asymptomatic Alzheimer's disease.

Alzheimer's disease (AD) is a common neurodegenerative disease, neuroinflammation is an early pathological feature of AD. However, the alteration of the immune microenvironment in asymptomatic AD was not fully explained. In this study, we aimed to utilize the transcriptome data of AD patients in public databases to reveal the change of immune microenvironment in asymptomatic AD and screen the potential drug targets.

Research frontiers and hotspots of coronary chronic total occlusion: A bibliometric analysis.

By analyzing the relevant literature, we can accurately grasp the current status of diagnosis and treatment of chronic total occlusion of coronary artery, and clarify the development trend, research frontiers and hotspots of this disease. A literature search with "chronic total occlusion" as the title was performed in the Web of Science database. The title, author, abstract, keywords, institution, publication, country, reference, and other endnotes of the selected literature were exported in the form of text.

Matching excellence: Oxford Nanopore Technologies' rise to parity with Pacific Biosciences in genome reconstruction of non-model bacterium with high G+C content.

The reconstruction of complete bacterial genomes is essential for microbial research, offering insights into genetic content, ontology and regulation. While Pacific Biosciences (PacBio) provides high-quality genomes, its cost remains a limitation. Oxford Nanopore Technologies (ONT) offers long reads at a lower cost, yet its error rate raises scepticism.

CartoMark: a benchmark dataset for map pattern recognition and map content retrieval with machine intelligence.

Maps are fundamental medium to visualize and represent the real word in a simple and philosophical way. The emergence of the big data tide has made a proportion of maps generated from multiple sources, significantly enriching the dimensions and perspectives for understanding the characteristics of the real world. However, a majority of these map datasets remain undiscovered, unacquired and ineffectively used, which arises from the lack of numerous well-labelled benchmark datasets, which are of significance to implement the deep learning techniques into identifying complicated map content.

Real-time non-line-of-sight computational imaging using spectrum filtering and motion compensation.

Non-line-of-sight (NLOS) imaging aims at recovering the shape and albedo of hidden objects. Despite recent advances, real-time video of complex and dynamic scenes remains a major challenge owing to the weak signal of multiply scattered light. Here we propose and demonstrate a framework of spectrum filtering and motion compensation to realize high-quality NLOS video for room-sized scenes.

Platelet-to-albumin ratio is an independent predictor for ventricular aneurysm formation in ST segment elevation myocardial infarction.

Background: Left ventricular aneurysm (LVA) is a common complication of acute myocardial infarction. We aimed to investigate the association of the platelet-to-albumin ratio (PAR) with LVA formation in patients with acute ST segment elevation myocardial infarction (STEMI) who underwent primary percutaneous coronary intervention (PCI).

Methods: A total of 767 consecutive patients with STEMI were prospectively enrolled.

The clinical management and efficacy of metagenomic next-generation sequencing in patients with pyogenic spinal infection: a single-center cohort study.

Objective: This study aims to evaluate the clinical management and effectiveness of metagenomic next-generation sequencing (mNGS) in patients with pyogenic spinal infections.

Methods: We conducted a retrospective review of 17 patients diagnosed with pyogenic spinal infections and treated at our institution between October 2022 and February 2024. The cohort included 8 males and 9 females, with a mean age of 63.