Ferromagnetic transformation of α-FeO Co doping for efficient water oxidation under magnetic field.

The introduction of a magnetic field has great potential for enhancing oxygen evolution reaction (OER) performance, but it requires the catalyst to be ferromagnetic and there is a lack of understanding of the fundamental mechanisms. Herein, we achieved the transformation of non-ferromagnetic α-FeO into ferromagnetic CoFeO by Co doping. Compared to α-FeO, the OER activity of CoFeO considerably increased under a magnetic field of 3000 Oe and is proportional to the magnetic field strength within a certain range.

[MiR-139-5p regulates the Notch/RBP-J/Hes1 axis to promote homing of bone mesenchymal stem cells in bronchial asthma].

Objectives: To observe the role of miR-139-5p and Notch1 signaling pathway in regulation of homing of bone mesenchymal stem cells (BMSCs) of asthmatic rats.

Methods: Normal rat BMSCs were co-cultured with bronchial epithelial cells from normal or asthmatic rats, followed by transfection with miR-139-5p mimics or a negative control sequence. The changes in cell viability and cell cycle were analyzed, and the cellular expressions of CXCR4 and SDF-1 were detected using immunofluorescence staining.

[Serum from Xinfeng Capsule-treated rats affect the proliferation and apoptosis of fibroblast-like synoviocytes in rheumatoid arthritis by regulating circular RNA Cbl proto-oncogene B (circ-CBLB)].

Objective To explore the effect of serum from Xinfeng Capsule(XFC)-treated rats on the proliferation and apoptosis of fibroblast-like synoviocytes in rheumatoid arthritis (RA-FLS) by regulating the circular RNA Cbl oncogene B (circ-CBLB). Methods XFC was administered orally to rats to prepare drug-containing serum. Human RA-FLS were stimulated with 100 μL of 10 ng/mL tumor necrosis factor-alpha (TNF-α) to establish the model.

Fusion of convolutional neural network with XGBoost feature extraction for predicting multi-constituents in corn using near infrared spectroscopy.

Near-infrared (NIR) spectroscopy has been widely utilized to predict multi-constituents of corn in agriculture. However, directly extracting constituent information from the NIR spectra is challenging due to many issues such as broad absorption band, overlapping and non-specific nature. To solve these problems and extract implicit features from the raw data of NIR spectra to improve performance of quantitative models, a one-dimensional shallow convolutional neural network (CNN) model based on an eXtreme Gradient Boosting (XGBoost) feature extraction method was proposed in this paper.

N6‑methyladenosine methyltransferase METTL14 is associated with macrophage polarization in rheumatoid arthritis.

Rheumatoid arthritis (RA) is largely caused by the inflammatory response triggered by macrophage polarization. Through epigenetic reprogramming, the inflammatory state of macrophages can be modified. Macrophage polarization is associated with the RNA epigenetic alteration N6-methyladenosine (m6A) RNA methylation.

XGBoost algorithm assisted multi-component quantitative analysis with Raman spectroscopy.

To improve prediction performance and reduce artifacts in Raman spectra, we developed an eXtreme Gradient Boosting (XGBoost) preprocessing method to preprocess the Raman spectra of glucose, glycerol and ethanol mixtures. To ensure the robustness and reliability of the XGBoost preprocessing method, an X-LR model (which combined XGBoost preprocessing and a linear regression (LR) model) and a X-MLP model (which combined XGBoost preprocessing and a multilayer perceptron (MLP) model) were developed. These two models were used to quantitatively analyze the concentrations of glucose, glycerol and ethanol in the Raman spectra of mixed solutions.

Exploration of the molecular mechanism guiding Xinfeng capsule regulatory mechanism for rheumatoid arthritis inflammation.

Objectives: Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammation of the joint synovium. The traditional Chinese medicine Xinfeng capsule (XFC) has a remarkable alleviating effect on inflammatory symptoms, such as joint pain and swelling, in patients with RA. However, the underlying mechanism of action remains to be elucidated.

Spatially resolved land and grid model of carbon neutrality in China.

China has committed to achieve net carbon neutrality by 2060 to combat global climate change, which will require unprecedented deployment of negative emissions technologies, renewable energies (RE), and complementary infrastructure. At terawatt-scale deployment, land use limitations interact with operational and economic features of power systems. To address this, we developed a spatially resolved resource assessment and power systems planning optimization that models a full year of power system operations, sub-provincial RE siting criteria, and transmission connections.

The associations between invasive group A streptococcal disease and infection with influenza, varicella, or hepatitis C viruses: A data linkage study, Victoria, Australia.

Objectives: To quantify the associations between invasive group A streptococcal disease (iGAS) incidence and influenza, varicella, and chronic hepatitis C virus (HCV).

Methods: We used individual-level linked data of iGAS cases from Victoria, Australia (2007-2017) to assess associations between these viral infections and iGAS. A self-controlled case series method was used to estimate the relative incidence of iGAS following an influenza or varicella infection, while the relative incidence of iGAS among HCV cases, and HCV cases who inject drugs, was estimated using population-level data and a negative binomial regression model.

High sensitivity and ultra-low concentration range photoacoustic spectroscopy based on trapezoid compound ellipsoid resonant photoacoustic cell and partial least square.

A high sensitivity and ultra-low concentration range photoacoustic spectroscopy (PAS) gas detection system, which was based on a novel trapezoid compound ellipsoid resonant photoacoustic cell (TCER-PAC) and partial least square (PLS), was proposed to detect acetylene (CH) gas. In the concentration range of 0.5 ppm ∼ 10.

[Circular RNA Cbl proto-oncogene B (circCBLB) inhibits proliferation, promotes apoptosis, and increases anti-inflammatory cytokine levels of fibroblast-like synoviocytes in rheumatoid arthritis].

Objective To explore the regulatory axis of circular RNA Cbl proto-oncogene B (circCBLB)/miR-486-5p on the proliferation, apoptosis, and inflammatory cytokines of fibroblast-like synoviocytes in rheumatoid arthritis (RA-FLS). Methods Human RA-FLS were stimulated with 100 μL of 10 ng/mL of tumor necrosis factor-alpha (TNF-α) to establish the model. The binding relationship of circCBLB/miR-486-5p was validated by a dual-luciferase reporter gene assay.

A novel pharmaceutical preparation of Tripterygium wilfordii Hook. f. regulates macrophage polarization to alleviate inflammation in rheumatoid arthritis.

Objectives: To validate the enhanced therapeutic effect of Tripterygium wilfordii Hook. f. (TWHF) in the treatment of rheumatoid arthritis (RA) by restoring homeostasis of M1/M2 macrophages.

[Bioinformatics of key genes and signaling pathways in macrophages in patients with rheumatoid arthritis].

Objective To screen key genes and signaling pathways in macrophages from patients with rheumatoid arthritis(RA) by bioinformatics. Methods Download the gene chip of synovial macrophages of RA patients from the Gene Expression Omnibus (GEO) database, obtain differentially expressed genes through the GEO2R function, and use the search tool for the retrival of interacting genes/proteins (STRING) database to construct a protein-protein interaction (PPI) network. Enrichment analysis was performed on key genes in Gene Ontology (GO) and Kyoto Encyclopedia of Gene and Genomics (KEGG).

Role of m6A modification and novel circ_0066715/ miR-486-5p/ ETS1 axis in rheumatoid arthritis macrophage polarization progression.

Rheumatoid arthritis (RA) is a systemic disease dominated by inflammatory synovitis. RA synovial macrophages tend undergo M1-type macrophage polarization. Then, polarized M1-type macrophages secrete abundant pro-inflammatory cytokines, causing joint and cartilage destruction.

Comprehensive Analysis and Functional Characteristics of Differential Expression of N6-Methyladenosine Methylation Modification in the Whole Transcriptome of Rheumatoid Arthritis.

N6-methyladenosine (m6A) modification is the most prevalent chemical modification in eukaryotic mRNA and is associated with the development of various immune diseases. However, the role of m6A methylation in rheumatoid arthritis (RA) development is unclear. We preliminarily explored the role of m6A methylation-related mRNAs in RA for its clinical application.

A new wing skeleton of the Jehol tapejarid Sinopterus and its implications for ontogeny and paleoecology of the Tapejaridae.

The tapejarid pterosaurs flourished in the Jehol Biota with an abundance of immature individuals and a rarity of individuals at skeletal maturity. Most of these individuals plot well on an ontogenetic series based on the proportions of limb elements, but this has lacked histological evidence until now. Here, a new wing skeleton of Sinopterus was thin-sectioned to provide the first histological data about the ontogeny of the Jehol tapejarids.

[Mechanism of Xinfeng Capsules improving rheumatoid arthritis based on CD19~+B cells regulating FAK/CAPN/PI3K pathway].

To observe the effect of Xinfeng Capsules on rheumatoid arthritis (RA) B lymphocytes,inflammatory mediators,FAK/CAPN/PI3K pathway,in order to explore the mechanism of Xinfeng Capsules in improving clinical symptoms of RA.Joint and systemic symptoms of RA patients were observed,and laboratory indicators[hemoglobin (HGB),platelet count (PLT),erythrocyte sedimentation (ESR),immunoglobulin (Ig) G,Ig A,Ig M,rheumatoid factor (RF),anti-cyclic citrulline antibody (CCP-AB),C-reactive protein (CRP)]were detected.ELISA was used to detect serum interleukin (IL)-1β，IL-10,IL-33,chemokine 5 (CCL5),and vascular endothelial growth factor (VEGF).

Early stage visual-orthographic processes predict long-term retention of word form and meaning: a visual encoding training study.

Adult learners of Chinese learned new characters through writing, visual chunking or reading-only. Following training, ERPs were recorded during character recognition tasks, first shortly after the training and then three months later. We hypothesized that the character training effects would be seen in ERP components associated with word recognition and episodic memory.

Expression and immunoactivity of chimeric particulate antigens of receptor binding site-core antigen of hepatitis B virus.

Aim: To improve the immunogenicity of receptor binding site of hepatitis B virus (HBV) on preS1 antigen using HBV core antigen as an immuno-carrier.

Methods: One to 6 tandem copies of HBV preS1 (21-47) fragment were inserted into HBcAg at the sites of aa 78 and 82, and expressed in E.coli.

[Construction and expression of single-chain antibody of neutralizing monoclonal antibody 13D8 against hepatitis E virus].

Aim: To weaken the immunogenicity of the neutralizing monoclonal antibody (mAb) 13D8 against hepatitis E virus and express its scFv.

Methods: The V(L) and V(H) genes were cloned by RT-PCR from hybridoma cells producing mouse mAb. And then V(H)-linker-V(L) fragment (scFv) was constructed and cloned into vector pTO-T7.

[Expression and bioactivity analysis of the fusion protein GFP-V(L) of the neutralizing monoclonal antibody MA18/7 against HBV].

Aim: To express the fusion protein of enhanced green fluorescent protein (EGFP) with the light chain variable domain of the neutralizing monoclonal antibody MA18/7 (mAb) against hepatitis B virus in E.coli, and determine its bioactivity.

Methods: The EGFP gene was cloned into vector pTO-T7 to construct an expression vector.