Improved doramectin production based on high-throughput screening and medium optimization in .

Doramectin, a 16-membered macrocyclic lactone that is widely used in the treatment of mammalian parasitic diseases. Doramectin was produced by mutant using cyclohexanecarboxylic acid as a precursor. As a semi-synthetic insecticidal agent produced, the production of doramectin was low, which could not be satisfy the demands of industrial fermentation.

Characteristics of viral ovarian tumor domain protease from two emerging orthonairoviruses and identification of Yezo virus human infections in northeastern China as early as 2012.

Emerging tick-borne orthonairovirus infections pose a growing global concern, with limited understanding of the viral ovarian tumor-like cysteine proteases (vOTUs) encoded by novel orthonairoviruses. These vOTUs, a group of deubiquinylases (DUBs), disrupt the innate immune response. Yezo virus (YEZV), a recently discovered pathogenic orthonairovirus, was first reported in Japan in 2021.

Quorum sensing inhibits phage infection by regulating biofilm formation of PAO1.

Unlabelled: Quorum sensing (QS) can regulate diverse critical phenotypic responses in (), enabling bacterial adaptation to external environmental fluctuations and optimizing population advantages. While there is emerging evidence of QS's involvement in influencing phage infections, our current understanding remains limited, necessitating further investigation. In this study, we isolated and characterized a novel phage designated as BUCT640 that infected PAO1.

Identification and Molecular Marker Detection of Leaf Rust Resistance Genes in Wheat Lines from China: Development of an Efficient Software for Gene Postulation.

Wheat leaf rust, caused by Erikss. (), is one of the most devastating diseases in common wheat ( L.) globally.

Magnesium/methanol-d1: a practical reductive deuteration system for the deuterium labeling of α,β-unsaturated esters, nitriles and amides.

The use of magnesium and methanol in the reduction of various functional groups has been well established. In this study, we present a reductive deuteration system using Mg/CHOD, which successfully facilitates the conversion of α,β-unsaturated esters, amides, and nitriles to their saturated counterparts. This protocol achieves good yields and high degrees of deuterium incorporation, while avoiding defunctionalization in the presence of various functional groups.

Cyclosporine A Decreased Paclitaxel Resistance in Prostate Cancer Cells by Inhibiting MTDH Expression.

This study aims to investigate the effect and mechanism of cyclosporine A (CsA) on paclitaxel-resistant prostate cancer cells. Paclitaxel-resistant prostate cancer cell lines were established by gradual increment method. The proliferation of cells was tested using MTT and colony formation assay.

Preparation, structural characterisation, absorption and calcium transport studies of walnut peptide calcium chelate.

In this study, a walnut peptide (WP) with calcium-binding capacity was prepared using a combination of alkalase and neutrase. The conditions for the preparation of walnut peptide calcium chelate (WP-Ca) were optimised (a peptide/calcium chloride ratio of 1 : 4 for 70 min at 50 °C and pH 9.5).

Standardization and consensus in the development and application of bone organoids.

Organoids, self-organized structures derived from stem cells cultured in a specific three-dimensional (3D) microenvironment, have emerged as innovative platforms that closely mimic cellular behavior, tissue architecture, and organ function. Bone organoids, a frontier in organoid research, can replicate the complex structures and functional characteristics of bone tissue. Recent advancements have led to the successful development of bone organoids, including models of callus, woven bone, cartilage, trabecular bone, and bone marrow.

Knockdown of HOXD13 in Oral Squamous Cell Carcinoma Inhibited its Proliferation, Migration, and Influenced Fatty Acid Metabolism.

HOXD13, a member of the homeobox gene family, plays a critical role in developmental processes and has been implicated in various malignancies, including pancreatic cancer and glioma. However, its role in oral squamous cell carcinoma (OSCC) remains poorly understood. This study aimed to elucidate the potential of HOXD13 as a diagnostic biomarker and therapeutic target for OSCC.

Characteristics of patients with non-severe infections of different SARS-CoV-2 omicron subvariants in China.

Objective: The aim of this study was to explore the clinical characteristics of patients infected with different Omicron subvariants presenting non-severe disease, evaluate the safety and efficacy of Azvudine for treatment of COVID-19, in order to broaden understanding of Omicron subvariant infections.

Method: A total of 244 individuals with Omicron subvariant (BA.2.

Single-fraction high-dose-rate brachytherapy as monotherapy for localized prostate cancer: long-term follow-up study based on meta-analysis.

Although single-fraction high-dose-rate brachytherapy (SFHDR-BT) for localized prostate cancer has been attempted in clinical trials, there is currently a lack of relevant medical evidence. It is essential to conduct a systematic analysis of the long-term safety and efficacy of SFHDR-BT. Comprehensive and systematic searches for eligible studies were performed in PubMed, Embase, and the Cochrane Library databases.

The Genetic Causal Effect of Autoimmune Diseases on pan-Cancers: Evidence from Mendelian Randomization.

Whether autoimmune diseases caused any effects on the risk of cancers remained yet clarified. This study aimed to investigate the causal effect of autoimmune diseases on pan-cancers through mendelian randomization (MR) analysis. The GWAS summary datasets of 10 autoimmune diseases were derived from the IEU or UK biobank website.

Recombinant avian metapneumovirus subtype C expressing HA protein of H9N2 avian influenza virus are stable and induce protection.

To prevent H9N2 avian influenza virus (AIV) and Avian metapneumonovirus/C (aMPV/C) infections, we constructed recombinant aMPV/C viruses expressing the HA protein of H9N2 AIV. In addition, EGFP was inserted into the intermediate non-coding region of P-M protein in the aMPV/C genome using a reverse genetic system. The conditions for rescuing the recombinant virus were enhanced followed by insertion of the H9N2 AIV HA gene into the same location in the aMPV/C.

Identifying subtle differences : a radiomics model assessment for gastric schwannomas and gastrointestinal stromal tumors across risk grades.

Objective: This study aims to develop and validate an enhanced computed tomography (CT)-based radiomics model to differentiate gastric schwannomas (GS) from gastrointestinal stromal tumors (GIST) across various risk categories.

Methods: This retrospective analysis was conducted on 26 GS and 82 GIST cases, all confirmed by postoperative pathology. Data was divided into training and validation cohorts at a 7:3 ratio.

Morphological Improvement of the Epiphyseal Plate and Trochlea After Surgical Correction in Skeletally Immature Patients With Patellar Dislocation and Trochlear Dysplasia.

Background: Studies have revealed abnormalities of the epiphyseal plate of the distal femur in patients with trochlear dysplasia, but it is unclear whether the epiphyseal plate could be remodeled after surgical correction of patellar dislocation.

Purpose: To investigate whether the morphology of the epiphyseal plate and trochlea could be improved after medial patellar retinaculum plasty in skeletally immature patients and to investigate the correlations between the morphology of the epiphyseal plate and trochlear dysplasia as well as clinical outcomes.

Study Design: Cohort study; Level of evidence, 3.

Boosting Electrocatalytic Nitrate Reduction to Ammonia on a Hierarchical Nanoporous Ag,Ni-Codoped Cu Catalyst via Trimetallic Synergistic and Nanopore Enrichment Effects.

The electrochemical nitrate (NO) reduction reaction (NORR) offers a promising route for NO wastewater treatment and sustainable ammonia (NH) synthesis. However, the reaction still faces the challenges of unsatisfactory productivity and selectivity. Herein, we report a hierarchical nanoporous Ag,Ni-codoped Cu (np Ag,Ni-Cu) catalyst that exhibits a high NH Faradaic efficiency of 98.

Deciphering Necroptosis-Associated Molecular Subtypes in Acute Ischemic Stroke Through Bioinformatics and Machine Learning Analysis.

Acute ischemic stroke (AIS) is a severe disorder characterized by complex pathophysiological processes, which can lead to disability and death. This study aimed to determine necroptosis-associated genes in acute ischemic stroke (AIS) and to investigate their potential as diagnostic and therapeutic targets for AIS. Expression profiling data were acquired from the Gene Expression Omnibus database, and necroptosis-associated genes were retrieved from GeneCards.

Excitation-mode-selective emission through multiexcitonic states in a double perovskite single crystal.

Low-dimensional lead-free metal halide perovskites are highly attractive for cutting-edge optoelectronic applications. Herein, we report a class of scandium-based double perovskite crystals comprising antimony dopants that can generate multiexcitonic emissions in the ultraviolet, blue, and yellow spectral regions. Owing to the zero-dimensional nature of the crystal lattice that minimizes energy crosstalk, different excitonic states in the crystals can be selectively excited by ultraviolet light, X-ray irradiation, and mechanical action, enabling dynamic control of steady/transient-state spectral features by modulating the excitation modes.

Boosting bulk photovoltaic effect in transition metal dichalcogenide by edge semimetal contact.

Oxide materials with a non-centrosymmetric structure exhibit bulk photovoltaic effect (BPVE) but with a low cell efficiency. Over the past few years, relatively larger BPVE coefficients have been reported for two-dimensional (2D) layers and stacks with asymmety-induced spontaneous polarization. Here, we report a crucial breakthrough in boosting the BPVE in 3R-MoS by adopting edge contact (EC) geometry using bismuth semimetal electrode.

[Research Advances in Strategies to Enhance the Therapeutic Effects of Mesenchymal Stem Cells on Graft-Versus-Host Disease Post Hematopoietic Stem Cell Transplantation --Review].

Mesenchymal stem cells (MSC) possess unique immunomodulatory properties and have enormous potential in the treatment of graft-versus-host disease (GVHD). However, the low implantation and survival rates of MSC in vivo, coupled with their weak immunosuppressive functions, have resulted in unstable clinical efficacy in the treatment of GVHD. Preconditioning of MSC with hypoxia, active molecules and gene modification can enhance the function of MSC and improve the implantation rate, survival rate and therapeutic effect of MSC.

[Generation and Evaluation of Human Umbilical Cord Derived Mesenchymal Stem Cells with Antioxidant Capacity].

Objective: To prepare mesenchymal stem cells with antioxidant capacity (AO-MSC) from human umbilical cords and evaluate its cell biological properties.

Methods: In control group, mesenchymal stem cells (MSC) were isolated by digesting human umbilical cord Wharton's Jelly tissues with 0.2% collagenase II, and the released cells were collected and cultured in an animal serum-free culture medium.

[Clinical Analysis of 25 Cases of Acquired Hemophilia A in a Single Center].

Objective: To explore the diagnosis and treatment of acquired hemophilia A (AHA) based on the analysis of clinical data.

Methods: A retrospective analysis was conducted on the clinical manifestations, laboratory characteristics, treatment, and outcomes of 25 patients diagnosed with AHA who were admitted to the Second Hospital of Hebei Medical University.

Results: Among all patients, 11 cases had secondary factors, including 5 cases of autoimmune diseases, 3 cases of pregnancy-related disease, 1 case of pemphigoid, 1 case of Graves' disease, and 1 case of monoclonal gammaglobulinemia of unknown significance (MGUS).

[Immuno Phenotypic Characteristics of Bone Marrow Monocytes and Its Clinical Significance in Patients with Multiple Myeloma].

Objective: To explore the characteristics of the immunophenotypic expression of bone marrow monocytes (M) and its clinical significance in patients with multiple myeloma (MM).

Methods: The monocyte immunophenotypes expression of 67 MM and 30 anemic patients (control group) were detected by flow cytometry. The immunophenotypes that exhibited statistical differences from the control group were screened out.