Netrin-1 binding to UNC5b improves post-stroke neuronal ferroptosis via AMPK-BACH1 pathway.

Ferroptosis contributes to neuronal destruction after ischemic stroke which may be improved by inhibiting BTB domain and CNC homologue 1 (BACH1), a recently recognized ferroptosis facilitator. Axon guidance molecule netrin-1 (Ntn1) functions in neuroprotection against ischemic insult by engaging into its receptor of uncoordinated-5 homolog B (UNC5b) via adenosine 5'-monophosphate-activated protein kinase (AMPK), which potentially binds to BACH1. Whether Ntn1/UNC5b regulates post-stroke ferroptosis through AMPK-BACH1 pathway remains unclear.

A Novel Derivatization-Free Approach for Analysis of (+)2-Aminobutanol and Ethambutol Hydrochloride in Tablets Preparation Using RP-HPLC-NQAD.

A novel and rapid RP-HPLC coupled with nano quantity analyte detector (NQAD) method was developed for determination of ethambutol hydrochloride and (+)2-aminobutanol in drug products. NQAD is an aerosol-based detector that can be used for the direct detection of the substance lacking ultraviolet chromophores. The two highly polar analytes were separated on a C column with mobile phase consists of trifluoroacetic acid solution and methanol and detected with NQAD.

Sequential release of vascular endothelial growth factor and platelet-derived growth factor at the appropriate time for improved angiogenesis.

Sequential release of vascular endothelial growth factor (VEGF) and platelet-derived growth factor (PDGF) was proposed to enhance therapeutic angiogenesis, however, it remains a challenge to accomplish distinct sequential release of the two proteins. More importantly, the appropriate timing of PDGF release remains an open question. Herein to solve these problems, a new time-controlled release system was designed in which tannic acid/Pluronic F127 (TA/F127) layer-by-layer (LBL) films were used as erodible coatings.

Cryptochromes (CRYs) in pepper: Genome-wide identification, evolution and functional analysis of the negative role of CaCRY1 under Phytophthora capsici infection.

Cryptochromes (CRYs) are ultraviolet-A (UV-A) and blue light photoreceptors that perceive UV-A and blue light to mediate a range of physiological processes including disease response in plants. However, there has been no report about the roles of CRY genes in pepper, which often suffers from Phytophthora blight caused by Phytophthora capsici. In this work, three pepper CRY genes were identified and their characteristics were examined by bioinformatics analysis.

Pseudomonas syringae exacerbates apple replant disease caused by Fusarium.

Apple replant disease (ARD) causes significant economic losses globally, including in China. Analyzing the causes of this replant disease from the perspective of rhizosphere microecology is therefore essential. In this study, we examined rhizosphere soils from apple trees subjected to continuous cropping.

Divalent metal ions enhance bone regeneration through modulation of nervous systems and metabolic pathways.

The divalent metal cations promote new bone formation through modulation of sensory and sympathetic nervous systems (SNS) activities. In addition, acetylcholine (Ach), as a chief neurotransmitter released by the parasympathetic nervous system (PNS), also affects bone remodeling, so it is of worth to investigate if the divalent cations influence PNS activity. Of note, these cations are key co-enzymes modulating glucose metabolism.

Electron Density Engineering at the Bond Critical Points in Solvation Sheath of Sodium Ions for High-Rate Hard Carbon in Ether-Based Electrolyte.

Rationally designing the electrolyte system toward improving the electrochemical performance, especially the rate capability, of sodium ion batteries (SIBs) is very important for accelerating their large-scale commercialization. Herein, it is shown that by refining the molar ratio of two ether solvents, namely dimethoxyethane (DME) and 2-methyl tetrahydrofuran (MeTHF), a binary solvent electrolyte system forms a sodium ion solvation structure that facilitates high rate charge/discharge of hard carbon (HC) electrodes. It is demonstrated that the boosted rate capability can be attributed to the enhanced sodium ion transportation and desolvation kinetics, resulting from the participation of weak-coordinating MeTHF molecule with low steric hindrance in the sodium ion solvation sheath, which weakens the interaction between sodium ion and solvent molecules/anions through electron density regulation at the bond critical points (BCPs).

Transcriptomics and proteomics provide insights into the adaptative strategies of Tibetan naked carps (Gymnocypris przewalskii) to saline-alkaline variations.

Gymnocypris przewalskii is an exclusively cyprinid fish that inhabits Lake Qinghai, which is characterized by high salinity and alkalinity. To elucidate the molecular basis of the adaptation of G. przewalskii to a wide range of salinity‒alkalinity conditions, we performed morphological, biochemical, transcriptomic and proteomic analyses of the major osmoregulatory organs of the gills and kidney.

Clinical value of miR-216a-5p and miR-34a in early screening for cervical cancer.

Objective: To investigate the clinical value of miR-216a-5p and miR-34a in early screening for cervical cancer (CC).

Methods: 99 patients were selected and classified into a cervical cancer group, a precancerous lesion group, and a chronic cervicitis group, with 33 patients in each group. The miR-216a-5p and miR-34a levels in the morning urine samples of patients in the three groups were detected.

The comorbidity burden of diabetes and stroke: a retrospective study in Beijing, China.

Background: The high costs associated with diabetes management, coupled with the increasing prevalence of comorbidities, present a significant challenge to China's healthcare system, with cardiovascular complications being particularly prominent. The purpose of this study was to evaluate the comorbidities of diabetic patients with stroke in Beijing from 2016 to 2018 and the impact on treatment options and associated costs.

Methods: This retrospective cohort study included diabetic patients enrolled in Beijing's medical insurance with outpatient medical records.

Development, validity, and reliability testing of a research readiness self-evaluation scale with nurses: A cross-sectional study.

Nurse research readiness determines research outcomes. Understanding of nurse knowledge, attitude, and behaviors on research preparation can better prepare them for medical search. To develop a nurse research readiness self-evaluation scale and test its validity and reliability.

Comparison of resmetirom quantative analysis in API and formulation models based on PXRD, FTIR and Raman scanning imaging combined with univariate and multivariate analyses.

Resmetirom is the first innovative drug for the treatment of non-alcoholic steatohepatitis (NASH), and its two crystal forms, form I and form-2HO, were mentioned in the original patent. The commercially available crystal form of resmetirom was form I. However, the tablets were subject to temperature, pressure, and humidity, and may be converted to form-2HO, which affects the bioavailability and efficacy.

An approach for psoriasis of microneedle patch simultaneously targeting multiple inflammatory cytokines and relapse related T cells.

Psoriasis is a chronic inflammatory skin disorder affecting approximately 125 million people globally. Topical medications are a cornerstone of current treatment protocols; however, their efficacy in mitigating inflammation is constrained by their predominantly single-target mechanisms. A significant challenge is the lack of pharmaceuticals specifically targeting CD8 tissue resident memory T (CD8 TRM) cells, which are the targets in psoriasis relapse.

Therapeutic gene correction of HBB frameshift CD41-42 (-TCTT) deletion in human hematopoietic stem cells.

Β-thalassemia is one of the global health burdens. The CD41-42 (-TCTT) mutation at HBB is the most prevalent pathogenic mutation of β-thalassemia in both China and Southeast Asia. Previous studies focused on repairing the HBB CD41-42 (-TCTT) mutation in β-thalassemia patient-specific induced pluripotent stem cells, which were subsequently differentiated into hematopoietic stem and progenitor cells (HSPCs) for transplantation.

In Situ-Forming, Adhesive, and Antioxidant Chitosan Hydrogels for Accelerated Wound Healing.

Antioxidant hydrogels that can provide a moist environment and scavenge reactive oxygen species have emerged as highly potential wound dressing materials. In situ-forming and good tissue adhesiveness will make them more desirable, as they can fill the irregular wound defect, stick to the wound, and offer intimate contact with the wound. Herein, a hydrogel dressing combining in situ-forming, good tissue adhesiveness, and excellent antioxidant capabilities was developed by simply conjugating dopamine onto carboxymethyl chitosan.

Transition Metal-Coordinated Polymer Achieves Stable Seawater Oxidation over NiFe Layered Double Hydroxide.

Seawater electrolysis has emerged as a promising approach for the generation of hydrogen energy, but the production of deleterious chlorine derivatives (e.g., chloride and hypochlorite) presents a significant challenge due to the severe corrosion at the anode.

Deep learning-based Monte Carlo dose prediction for heavy-ion online adaptive radiotherapy and fast quality assurance: A feasibility study.

Background: Online adaptive radiotherapy (OART) and rapid quality assurance (QA) are essential for effective heavy ion therapy (HIT). However, there is a shortage of deep learning (DL) models and workflows for predicting Monte Carlo (MC) doses in such treatments.

Purpose: This study seeks to address this gap by developing a DL model for independent MC dose (MCDose) prediction, aiming to facilitate OART and rapid QA implementation for HIT.

Mechanisms of epigallocatechin-3-gallate-loaded metal-organic framework in preventing oxidative degradation of shrimp (Litopenaeus vannamei) surimi gel.

This work aimed to elucidate the deterioration mechanisms of shrimp surimi gels during refrigerated storage, and the regulatory mechanisms of epigallocatechin-3-gallate loaded cyclodextrin-based metal-organic framework (EGCG@CD-MOF) as a model antioxidant. Labele-free proteomics provided a quantitative analysis of the differential proteomic signatures of degraded proteins. Structural proteins, like myosin, paramyosin, titin, laminin, and α-actinin, along with calcium regulatory proteins, like calcineurin and sarcoplasmic calcium-binding protein were found to be highly susceptible to oxidative degradation during refrigeration.

Sperm DNA fragmentation index: limited effectiveness on predicting embryo quality in assisted reproduction technology treatments.

Purpose: Prior sperm DNA fragmentation index (DFI) thresholds for diagnosing male infertility and predicting assisted reproduction technology (ART) outcomes fluctuated between 15 and 30%, with no agreed standard. This study aimed to evaluate the impact of the sperm DFI on early embryonic development during ART treatments and establish appropriate DFI cut-off values.

Methods: Retrospectively analyzed 913 couple's ART cycles from 2021 to 2022, encompassing 1,476 IVF and 295 ICSI cycles, following strict criteria.

Polysaccharide lyase PL3.3 possibly potentiating Clostridioides difficile clinical symptoms based on complete genome analysis of RT046/ST35 and RT012/ST54.

Clostridioides difficile has rapidly become a major cause of nosocomial infectious diarrhea worldwide due to the misuse of antibiotics. Our previous study confirmed that RT046/ST35 strain is associated with more severe clinical symptoms compared to RT012/ST54 strain. We conducted genome comparison of the RT046/ST35 and RT012/ST54 strains using whole-genome sequencing technology.

Unveiling the Effect of Age and IgE Level on Alopecia Areata: Insights from Comparative RNAseq Analysis.

Background: Alopecia areata (AA) is a common autoimmune disease, causes sudden hair loss on the scalp, face, and sometimes other areas of the body. Previous studies have suggested more severe manifestations and higher recurrence rates in children than in adults. Moreover, pediatric AA patients with atopic predisposition often exhibit elevated IgE levels, early onset, and a poor prognosis.

Correlation of Sensitization with Mucus Plugging in COPD.

Background: Both sensitization and mucus plugs are associated with poor clinical outcomes in COPD. However, little is known about the association between hypersensitivity and mucus plugging in patients with COPD.

Methods: We retrospectively enrolled COPD patients who had visited Peking University Third Hospital and received measurement of the specific IgE ( sIgE) from Oct 1, 2018 to Sep 30, 2023.

Exploring the role of ELOVLs family in lung adenocarcinoma based on bioinformatic analysis and experimental validation.

Background: The role of lipid metabolic reprogramming in the development of various types of cancer has already been established. However, the exact biological function and significance of the elongation of very-long-chain fatty acids (ELOVLs) gene family, which can affect fatty acid metabolism, is still not well understood in lung adenocarcinoma (LUAD). The aim of our study is to explore whether there are genes related to the pathogenesis of LUAD in the ELOVLs family, and even to guide clinical medication and potential prognostic indicators.

Synthesis of Polysubstituted Benzo[][1,5]naphthyridine via Mn(III)-Mediated Domino Cascade Reactions of Cyclopropanols and 2-(2-Isocyanophenyl)acetonitriles.

Domino cascade reactions, which can construct multiple bonds in one pot, are efficient methods to synthesize N-heterocycles and other useful skeletons. Herein, we report an expedient synthesis of polysubstituted benzo[][1,5]naphthyridine via Mn(III)-mediated C-C bond cleavage of cyclopropanols. These reactions were initiated by addition of β-carbonyl radicals, generated from cyclopropyl alcohols in the presence of Mn(III), to 2-(2-isocyanophenyl)acetonitriles to give quinolin-3-amines, which went through intramolecular cyclizations and dehydrogenation to give the final products.