Co-treatments of vitamin D and mesenchymal stem cells effectively alleviate the diabetic kidney disease through attenuating the SIRT1-mediated pathways.

Background: Diabetic kidney disease (DKD) is still as a common chronic micro-vascular complication of type 1 diabetic (T1DM). Although many studies had verified the therapeutic potential of mesenchymal stem cells (MSCs) on the clinical treatment of the related complications associated with T1DM, especially the DKD, by preserving the balances of immune micro-environment and so on. However, the immunomodulatory capabilities of MSCs are still controversial on the the efficacy of DKD treatment primarily due to the variations on the immune micro-environment, which could be modulated by a variety of elements, such as the vitamin D (VD).

Machine learning algorithms with body fluid parameters: an interpretable framework for malignant cell screening in cerebrospinal fluid.

Objectives: This study aimed to develop and validate a machine learning (ML) model utilizing cerebrospinal fluid (CSF) body fluid parameters from hematology analyzers to screen for malignant cells.

Methods: We analyzed 643 consecutive CSF samples from patients with central nervous system symptoms, with 191 samples classified as positive for malignant cells based on cytological examination, for model derivation. Body fluid parameters were measured using the body fluid mode of a hematology analyzer.

Precision Molding Simulation Study of 3D Ultra-Thin Glass Components for Smartwatches.

High stress and shape deviation during the glass forming process often led to low yield rates, posing a challenge in the production of high-precision smartwatch components. To address this issue, a numerical model was developed to simulate and analyze the forming behavior of 3D curved glass. The study focused on achieving a balance between energy consumption and key quality attributes, such as residual stress and shape accuracy.

Integrating click chemistry into protein expression for efficient preparation of immobilized protein bio-surface with enhanced stability and reproducibility in affinity chromatography.

Background: Protein immobilization method play a pivotal role in developing affinity chromatographic assays for both basic and applied research, and site-specific, covalent attachment serves as the most desirable strategy. Traditional strategy often gives rise to inconsistent results due to the use of heterobifunctional cross-linker or a similar two-step protocol. Introducing unnatural amino acids into the immobilization is possible to address the issue, however, it needs purification of the protein whereas suffers from loss of the protein activity.

Ecological water conveyance-driven wetland hydrological connectivity and morphological changes in arid regions: An analysis of the Taitema Lake wetland.

Wetland hydrological connectivity is essential for both providing the structure and function of wetland ecosystems and restoring them. The Taitema Lake wetland exhibit a high sensitivity to hydrological changes, with alterations in watershed dynamics having a significant impact on their ecosystem function and structure. There are notable gaps in the assessment studies of hydrological connectivity.

Immobilizing the Endogenous 5-Hydroxytryptamine Transporter by Ligand-Directed and Proximity-Catalyzed Acyl Imidazole Chemistry for Affinity Chromatographic Analysis.

The sensitivity, selectivity, and accuracy of immobilized protein-based methods are critically dependent on the strategies employed for protein immobilization. Compared with random immobilization approaches, site-specific covalent methods have emerged as promising alternatives, offering enhanced analytical performance. However, these methods typically require genetic modification of the target protein to incorporate a specific tag or prior purification of the protein, posing significant challenges for immobilizing endogenous proteins.

In situ cleavage-based sortase A-mediated site-specific immobilization of beta2-adrenoceptor on gold surface for surface plasmon resonance measurement.

Surface Plasmon Resonance (SPR) is a pivotal technique for measuring biomolecular interactions, with the sensor surface typically made of gold or silver and requiring proteins to be immobilized in a controlled manner. Traditional methods, such as random crosslinking via covalent amide bonds (EDC/NHS strategy), resulting in diverse protein orientations. Alternatively, site-specific immobilization strategies offer better orientation control, they are still challenged by the purification needs for protein of interests and steric hindrance produced by bulk protein tags.

Epidemiological characteristics of 5838 cases of enterovirus infection in children in Hangzhou from 2018 to 2023.

This study retrospectively explored the characteristics of 5838 children with enterovirus infection in our hospital from 2018 to 2023. In addition, children with enterovirus (EV: EV typing was performed using RT-PCR) infection exhibiting clinical manifestations of viral encephalitis were investigated. Pharyngeal swabs or fecal samples from outpatients and inpatients from our hospital were collected from 2018 to 2023 and were subjected to EV nucleic acid detection using real-time fluorescence quantitative PCR.

The epidemiological analysis of respiratory virus infections in Children in Hangzhou from 2019 to 2023.

To investigate the infection of children with respiratory tract infection in Hangzhou from 2019 to 2023, and to explore the epidemiological characteristics of respiratory tract virus infection before and after the prevalence of novel coronavirus. A retrospective analysis was conducted on oral and pharyngeal swabs from 302,680 children with acute respiratory infections. Colloidal gold-based assays were used to detect viral antigens, including adenovirus (ADV), influenza A (FluA), influenza B (FluB), and respiratory syncytial virus (RSV).

Lanthanum-loaded biochar-based alginate hydrogels for efficient phosphate adsorption from wastewater.

In this study, a lanthanum-loaded biochar-based alginate hydrogel (La@SA@BC) was successfully fabricated at an optimal 1:1 mass ratio of lanthanum-loaded biochar to sodium alginate. A maximum phosphate (P) adsorption capacity of 56.5 mg/g was achieved under an adsorbent dosage of 0.

A strategy for selective screening of dual-target bioactive compounds against hypertrophic scar through inhibiting angiotensin II type 1 receptor while stimulating type 2 receptor from Chinese herbs.

Background: Cutaneous hypertrophic scar is a fibro-proliferative hard-curing disease. Recent studies have proved that antagonists of angiotensin II type 1 receptor (ATR) and agonists of type 2 receptor (ATR) were able to relieve hypertrophic scar. Therefore, establishing new methods to pursue dual-target lead compounds from Chinese herbs is in much demand for treating scar.

Vitamin D alleviates HFD-induced hepatic fibrosis by inhibiting DNMT1 to affect the TGFβ1/Smad3 pathway.

Increasing evidence points toward vitamin D (VD) having lipometabolism and immune-related properties to protect against related metabolic diseases through influencing DNA methylation with inconsistent results. Simultaneously, its relatively precise molecular metabolism on the progression of metabolic-associated fatty liver disease (MAFLD) remains uncertain. Here, we report an unprecedented role and possible mechanism for VD supplementation on the alleviation of high-fat diet (HFD)-induced MAFLD.

Predictive value of Ig Mycoplasma pneumoniae-DNA, high-density lipoprotein, natural killer cell, and platelet levels for diagnosing severe M. pneumoniae pneumonia in children.

Objective: The present study aimed to assess the predictive value of Ig Mycoplasma pneumoniae (MP)-DNA, high-density lipoprotein (HDL), natural killer (NK) cell, and platelet (PLT) levels for the diagnosis of severe MP pneumonia (SMPP) in children with MP pneumonia (MPP).

Methods: Children with MPP admitted to our hospital from August 2022 to February 2024 were selected and assigned to the non-SMPP (NSMPP) and SMPP groups according to whether they had severe pneumonia. The following parameters were analyzed and compared between the two groups by the rank-sum test: age; Ig MP-DNA level; white blood cell, neutrophil (N), and monocyte counts; platelet (PLT), C-reactive protein (CRP), lactate dehydrogenase (LDH), triglycerides, high-density lipoprotein (HDL), low-density lipoprotein, and procalcitonin levels; and levels of T cells, CD4 T cells, CD8 T cells, B cells, and NK cells.

[Establishment and evaluation of haloalkane dehalogenase tagged -adrenergic receptor chromatography].

Receptor chromatography is an efficient analytical technique that combines the high separation ability of chromatography with the high specificity of receptors for drug recognition. In addition, this technique offers the advantages of active recognition, online separation, and convenient multidimensional target tracking. This strategy allows target active ingredients in complex systems, such as traditional Chinese medicines, to be efficiently screened and accurately identified.

Epidemiology and viral loads of respiratory syncytial virus in hospitalized children prior to and during COVID-19 pandemic in Hangzhou, China.

Non-pharmaceutical interventions (NPIs) implemented to control SARS-CoV-2 have significantly influenced the activity of respiratory pathogens. This study investigated epidemiological changes among hospitalized patients with respiratory syncytial virus (RSV) before (2017-2019) and during (2020-2022) the COVID-19 pandemic in Hangzhou, China. We also examined viral load distribution across demographic and temporal variables.

A self-catalyzing strategy for co-immobilization of two distinct proteins at equimolar ratio: A case study of 3A and 2C to develop a chromatographic method for finding prospective dual-target compoundsfrom complex matrices.

Background: Immobilized proteins hold promise as the basic units that have enabled a broad range of analytical applications within chemical measurement science. As yet, the co-immobilization of diverse proteins at precise ratio and whether they give rise to improved analytical performance remain challengeable. Herein, we utilized a circularly permuted HaloTag (cpHaloTag) to achieve the co-immobilization of two proteins at precise ratio, which was applied in developing a chromatographic method with improved specificity for pursuing dual-target compounds.

Emerging affinity methods for protein-drug interaction analysis.

The study of protein-drug interaction plays a crucial role in understanding drug mechanisms, identifying new drug targets and biomarkers, and facilitating drug development and disease treatment. In recent years, significant progress has been made in various protein-drug interaction research methods due to the rapid development and in-depth application of mass spectrometry, nuclear magnetic resonance, Raman spectroscopy, and other technologies. The progress has enhanced the sensitivity, precision, accuracy, and applicability of analytical methods, enabling the establishment of drug-protein interaction networks.

Bivalent affinity binding-inspired PPARγ immobilization with selective conformation and improved ligand-binding activity.

Functional protein immobilization forms the basis for bio-detections. A series of one-point, site-specific immobilization methods have been developed, however, it still remains as a challenge how to avoid the proteins to move in all directions as well as conveniently regenerate the bio-devices. Herein, we have developed a bivalent affinity binding-inspired method for PPARγ immobilization using DNA aptamer and nickel-nitrilotriacetic acid (Ni-NTA) chelation.

A universal method for surface-based binding assays by preparing immobilized β-adrenergic receptor stationary phase using solid binding peptide as a fusion tag.

Protein functionalized surface has the potential to develop new assays for determining the drug-like properties of potential compounds and discovering specific partners of G protein-coupled receptors (GPCRs). However, a universal method for purifying and immobilizing functional GPCRs has remained elusive. To this end, we developed a general and rapid way to purify and immobilize β-adrenergic receptor (βAR) by silicon-specific peptide.

Site-specific immobilization of Cysteinyl leukotriene receptor 1 through enzymatic DNA-protein conjugation strategy for lead screening.

Immobilization of functional protein, especially G protein-coupled receptors (GPCRs), is particularly significant in various fields such as the development of assays for diagnosis, lead compound screening, as well as drug-protein interaction analysis. However, there are still some challenges with the immobilized proteins such as undefined loads, orientations, and the loss of activity. Herein, we introduced a DNA conjugation strategy into the immobilization of Cysteinyl leukotriene receptor 1(CysLTR1) which enables exquisite molecular control and higher activity of the receptor.

Can the heptapeptide ASSIVSF of the β-adrenoceptor recognize ephedrine and pseudoephedrine epimers in a complex system?

Epimer separation is crucial in the field of analytical chemistry, separation science, and the pharmaceutical industry. No reported methods could separate simultaneously epimers or even isomers and remove other unwanted, co-existing, interfering substances from complex systems like herbal extracts. Herein, we prepared a heptapeptide-modified stationary phase for the separation of 1R,2S-(-)-ephedrine [(-)-Ephe] and 1S,2S-(+)-pseudoephedrine [(+)-Pse] epimers from Ephedra sinica Stapf extract and blood samples.

Stimulated Human Umbilical Cord Mesenchymal Stem Cells Enhance the Osteogenesis and Cranial Bone Regeneration through IL-32 Mediated P38 Signaling Pathway.

Objective: Our previous study found that it could significantly increase the expression of IL32 after stimulating the human umbilical cord mesenchymal stem cells (S-HuMSCs). However, its role on the osteogenesis and cranial bone regeneration is still largely unknown. Here, we investigated the possible mechanism of this effect.

A label-free strategy for immobilization of GPCRs using site-specific encoded non-natural amino acids to develop a selectively chromatographic approach for pursuing potential ligands binding to 5-hydroxytryptamine 1A receptor.

G protein-coupled receptors (GPCRs) are one of the most prominent targets for drug discovery. Immobilizing GPCRs has proven to be an effective strategy for expanding the utility of GPCRs into nonbiological contexts. However, traditional strategies of immobilizing GPCRs have been severely challenged due to the loss of receptor function.