Objective:s To investigate the risk factors for delayed encephalopathy after acute carbon monoxide poisoning (DEACMP) in patients with acute carbon monoxide poisoning (ACOP) and to develop predictive models based on machine learning algorithms.Methods:Patients with ACOP hospitalized at the First Affiliated Hospital of Zhengzhou University from August 2019 to October 2024 were included, with the occurrence of DEACMP as the outcome measure. The dataset was randomly divided into training and validation sets at a ratio of 7:3. Lasso regression was used to select features influencing the outcome in training sets. Nine machine learning models—including Random Forest (RF), Extreme Gradient Boosting (XGBoost), and Support Vector Machine (SVM)—were constructed. Receiver operating characteristic (ROC) curves were plotted and the area under the curve (AUC) calculated for each model. Calibration curves were used to assess accuracy, and decision curve analysis (DCA) was applied to evaluate clinical utility. The SHapley Additive exPlanations (SHAP) method was employed to visualize and interpret the best-performing model.Results:A total of 264 ACOP patients were included, of whom 54 (20.5%) developed DEACMP. Lasso regression identified eight key feature variables. Based on these factors, predictive models were constructed, showing good AUC stability across the nine machine learning models in both training (0.92–0.99) and validation sets (0.85–0.91). The RF model performed best, with an AUC of 0.99 in the training set and 0.90 in the validation set; its calibration curve and DCA curve also demonstrated excellent performance. SHAP analysis of the RF model revealed the importance ranking of factors from highest to lowest as follows: Glasgow Coma Scale (GCS) score, duration of coma, age, history of coronary heart disease, CK-MB level, monocyte count, diastolic blood pressure (DBP), and drinking history.Conclusions:The RF model exhibited the highest predictive performance for DEACMP occurrence in ACOP patients. The influencing factors, ranked in order of importance from highest to lowest, are as follows: GCS score, duration of coma, age, history of coronary heart disease, CK-MB level, monocyte count, DBP, and drinking history.

Objective: To analyze the impact of parental sports concept and behavior on physical activity in preschool children, so as to provide a foundation for future guidance on fostering childrens physical activity within the family context. Methods: From November to December 2020, a clustered convenience sampling method was employed to conduct surveys, and a total of 283 children were selectal from one kindergarten each in Beijing, Shenyang, and Xian. Participating children wore ActiGraph GT9X accelerometers continuously for one week to collect data on different intensity levels of physical activity. Physical Activity afterschool Questionnaire for Preschooler (P-PAQ) was utilized to assess parental sports concept and behavior. The gender differences in physical activity level and physical activity compliance rate were analyzed by using ttest, Mann-Whitney U test, and Chisquare test; and the relationship between parental exercise concepts and behaviors and physical activity of preschool children was analyzed using Spearman rank correlation analysis and multiple linear regression analysis. Results: Parental sports concept was significantly positively correlated with average daily moderatetovigorous physical activity (MVPA) and total physical activity (TPA) in children (r=0.12-0.16, P<0.05). Parental sports behavior was significantly positively correlated with childrens average daily TPA (r=0.25, P<0.05). Multiple linear regression revealed that parental sports concept was positively correlated with average daily MVPA and TPA in both boys and girls (B=0.65-0.83), while parental sports behavior only was positively correlated with boys average daily MVPA and TPA (B=0.24-0.25)(P<0.05). Conclusions Parental sports concept and behavior can impact physical activity levels in preschool children, exhibiting gender differences. Future guidance on physical activity in family upbringing should consider both parental sports concept and behavior, and pay attention to the influence of childrens gender.

Standards are the technical support for economic activities and social development. The construction and standardization of the pathogenic microorganism preservation standard system is an important technical foundation for the high-quality development of preservation work. Establishing a pathogenic microorganism resource standard system is also important to the national biosafety standards. Through the standardization of pathogenic microbial resource preservation, we can ensure the effective management and sustainable utilization of pathogenic microbial resources, promote the transformation of resources, and serve as an important new element of new productivity to assist the innovative development of biosafety science and technology. This article elaborates and analyzes the establishment background, construction framework, standardization process, and application effects of the standard system for preserving pathogenic microbial resources, providing stronger support for further improving the standard system and promoting the standardization of pathogenic microbial resource preservation.

RNAs are involved in the crucial processes of disease progression and have emerged as powerful therapeutic targets and diagnostic biomarkers. However, efficient delivery of therapeutic RNA to the targeted location and precise detection of RNA markers remains challenging. Recently, more and more attention has been paid to applying nucleic acid nanoassemblies in diagnosing and treating. Due to the flexibility and deformability of nucleic acids, the nanoassemblies could be fabricated with different shapes and structures. With hybridization, nucleic acid nanoassemblies, including DNA and RNA nanostructures, can be applied to enhance RNA therapeutics and diagnosis. This review briefly introduces the construction and properties of different nucleic acid nanoassemblies and their applications for RNA therapy and diagnosis and makes further prospects for their development.

Technical requirements for evaluation of national standard strains of pathogenic microorganisms (WS/T 812—2022)have been implemented since May 1, 2023. This is one of the concrete and important measures to implement Biosafety Law of the People′s Republic of China, the National Health Commission of the pathogenic microorganisms of collection organization of the " 14th Five-Year" development plan and to improve the standard system of pathogenic resource preservation and biosafety in China. For the first time, this standard specifies a definition, four evaluation principles, five types of use, and three evaluation indicators of national standard strains of pathogenic microorganisms, and standardizing the evaluation technical procedures and certificate. After the implementation of the standard, it will strongly support the national needs for the evaluation and application of pathogenic microorganism standard strains, such as infectious disease prevention and control, food safety testing, and biometrics specification, gradually reduce the long-term dependence on foreign standard strains and other " bottleneck" problems, help national biosecurity and high level science and technology self-reliance while promoting the innovation and high-level development of biotechnology.

Objective:To determine the evaluation indexes of national standard strains of genotypes 1, 3 and 5 of Japanese encephalitis virus (JEV) and evaluate the national standard JEV strains.Methods:According to the national standard strain evaluation technical standards of pathogenic microbial bacteria (virus) species, based on the application of Japanese encephalitis virus research, and according to the morphological characteristics, biological characteristics, molecular biological characteristics and other research data to identify the characteristics of G1, G3 and G5 genotypes of JEV.Results:Spherical virus particles with a diameter of about 60 nm were visible under electron microscope of the three Japanese encephalitis virus strains. The cytopathic effect was mainly characterized by cell shrinkage and exfoliation in BHK-21 and Vero cell lines, cell fusion and exfoliation were shown after infection with C6/36 cell line; the virus titer was 10 5-10 7 PFU/ml, and the plaque size was different by genotype. The median lethal dose of intrabitoneal challenge in G1, G3 and G5 JEV in three weeks-old mice was 50.51 PFU, 6.98 PFU, and 8.13 PFU, and the median lethal dose of intracranial challenge in five weeks mice was 3 PFU, 0.3 PFU, 1.35 PFU. The whole genome length of G1, G3 and G5 JEV was 10 967 bp, 10 976 bp and 10 983 bp, respectively. Conclusions:Three genotypic national standard strains of JE V were identified and evaluated by electron microscopy, cell, animal and genome laboratory indexes, which provided reference for the identification and evaluation of other national standard strains of JEV.

In 2001, the anthrax incident in the United States drew more intense global attention to the threat posed by potential bioterrorism. In order to prevent the occurrence of similar bioterrorism incidents and better regulate the management of pathogenic microorganisms, especially the pathogens that may be used to cause potential bioterrorism incidents, the United States established the Federal Select Agent Program (FSAP) in 2002. The program aims to national biosecurity by establishing regulations governing the possession, use or transfer of specific biological agents or toxins by individuals or institutions to minimize harm to humans, animals and plants, and animal and plant products. Based on the systematic elaboration of the basic situation of the FSAP, we reviewed the development and change of the FSAP over the past 20 years and its existing problems, and gives some suggestions to the regulation of pathogenic microorganism in China.

The COVID-19 pandemic highlights the significance of preserving and sharing pathogenic microorganisms like SARS-CoV-2. China has abundant microbial resources, however due to the late start of preservation work, there is still a gap in the construction of pathogenic microorganism preservation system compared to major preservation institutions in other countries. This paper adopts the method of literature research, in combination with statistics from official website, compares and analyzes the operational management, organizational structure, and sharing capability of the American Type Culture Collection (ATCC) of the United States of America, the NITE Biological Resource Center (NBRC) of Japan, and the Deutsche Sammlung von Mikroorganismen und Zellkulturen (DSMZ) of Germany, and summarizes their mature management experience, so as to provide suggestions for the system construction, operational management, and resource-sharing service of pathogenic microorganism preservation system in China.

Objective:To explore the construction and application of the standard process of thirst management for patients undergoing endonasal transsphenoidal surgery for pituitary adenomas.Methods:From June 2020 to October 2021, 160 patients with endonasal transsphenoidal surgery for pituitary adenomas who were admitted to the Neurosurgery Department of the First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital) were selected by convenience sampling. The patients were randomly divided into test group and control group, 80 cases in each group. The control group implemented routine nursing to prevent postoperative thirst, while the test group established a standard process of thirst management and implemented thirst prevention and interventions according to the process. The thirst intensity, thirst pain and resting salivary flow rate between the two groups was compared.Results:The thirst intensity scores of patients in the test group at 2, 6 and 24 hours after operation were lower than those in the control group, with statistically significant differences ( Z=-8.696, -10.008, -4.305; P<0.01) . The score of thirst pain in the test group was lower than that in the control group, and the resting salivary flow rate at 6 and 24 hours after operation were higher than those in the control group, with statistically significant differences ( Z=-9.488, -4.124, -2.631; P<0.01) . Conclusions:The standard process of thirst management can reduce the postoperative thirst intensity of patients with pituitary adenomas surgery and improve their thirst feeling, which is worthy of clinical promotion.

Strain-resource engineering is often considered as an important infrastructure of microbiology related research and industry. The western developed countries took the lead in establishing the classical microbial resource utilization method, and continuously improved the preservation system, species annotation technology and global sharing mechanism, which realized the expansion and reserve of biological resources since end of the 19th century. The rich and diversified germplasm resources, standard strains and production strains not only have important economic values, but also maintain the advantages of scientific research, bioeconomy (such as antimicrobial agents, vaccines, detection reagent development and standard development, etc.) and national security. Although there has been a lot of progress in related research in recent years, compared with developed countries, there is still a big gap in related fields in China. The investment and top-level design in this area lag far behind the western developed countries, and it is not commensurate with the current level of economic and social development in my country. Drawing lessons from the practice of WFCC and WDCM (World Data Center for Microorganisms, Global microbial data Center, affiliated to WFCC), for the purpose of collecting new clinical species/strains, this paper puts forward some suggestions on the identification, preservation and upload system of isolates.