Objective To analyze the composition characteristics and biological functions of tumor cell subpopulations in glioblastoma(GBM)through multi-transcriptomics sequencing technology,and explore the hypoxia characteristics and spatial localization features of the mesenchymal-like(MES-like)tumor cell subpopulation in GBM and the influence on malignant biological behaviors.Methods Multi-transcriptomics sequencing data,including single-cell RNA sequencing(scRNA-seq)data(18 patients),bulk RNA sequencing(bulk RNA-seq)and spatial transcriptomics(ST)data of GBM,were employed to define cell subpopulations in GBM,and Gene Ontology(GO)and Gene Set Enrichment Analysis(GSEA)were utilized to analyze their functions.The proportions and locations of cell subpopulations in bulk RNA-seq data were evaluated with BayesPrism deconvolution.Immunofluorescence assay was conducted for verification on 12 paraffin samples of GBM from patients who visited the neurosurgical department of our hospital from 2015 to 2023 and met the pathological diagnostic criteria for GBM(10 males and 2 females,at an average age of 53.50 years and a median age of 54.50 years).pySCENIC was applied to predict specific transcription factors of tumor cell subpopulations.Results Tumor cells in GBM were highly heterogeneous,and could be mainly divided into 4 subpopulations:astrocyte-like(AC-like),neural progenitor-like(NPC-like),oligodendrocyte progenitor-like(OPC-like)and MES-like.Differential gene analysis found that the MES-like tumor cells highly expressed vascular endothelial growth factor A(VEGFA),adrenomedullin(ADM),N-myc downstream regulated 1(NDRG1),insulin like growth factor binding protein 5(IGFBP5),and A-kinase anchoring protein 12(AKAP12)(P<0.001).pySCENIC transcription factor prediction found that the high-active transcription factors of the MES-like tumor cells were AT-rich interaction domain 3A(ARID3A),FOS like 2,AP-1 transcription factor subunit(FOSL2),endothelial PAS domain protein 1(EPAS1),CCAAT enhancer binding protein delta(CEBPD),and CCAAT enhancer binding protein beta(CEBPB)(P<0.05).GO and GSEA enrichment analyses found that the MES-like tumor cells were enriched in hypoxia-related pathways,especially the pathway of cell responses to hypoxia levels(NES=2.437,P<0.001).BayesPrism deconvolution showed that the MES-like tumor cells mainly existed in PAN(Pseudopalisading cells around necrosis)and perinecrotic zone.Immunofluorescence assay confirmed CD44+(CD44 antigen)MES-like tumor cells were mainly located in hypoxia areas with highly expression of hypoxia inducible factor 1 subunit alpha(HIF1α)(P<0.01).Multivariate Cox regression analysis indicated that the MES-like tumor cells were significantly correlated with the adverse prognosis of GBM patients(HR=1.71,95%CI:1.38～2.11,P<0.001).Conclusion Tumor cells in GBM are of highly heterogeneity.They could be mainly divided into 4 subpopulations:AC-like,NPC-like,OPC-like and MES-like.MES-like tumor cells,mainly locating in PAN and perinecrotic zone,are characterized by hypoxia,which can promote the malignant progression of GBM.

Objective To investigate the effect of the Piezo1 channel on tension-side angiogenesis and osteogenic remodeling during orthodontic tooth movement,so as to provide an experimental basis for accelerating orthodontic peri-odontal tissue remodeling.Methods This study was approved by the Animal Ethics Committee.Sixty healthy male Sprague-Dawley rats with bilateral maxillary incisors as the anchorage were selected,and nickel titanium tension springs were used to apply 0.5 N of force to the right maxillary first molar of the rats and construct an orthodontic tooth movement model.The rats were randomly divided into three groups(n=20 per group).On Days 0 and 8 of force appli-cation,equal volumes of saline(control group),100 μmol/L Piezo1 channel agonist(Yoda1 group),and 48 μmol/L Piezo1 channel inhibitor(GsMTx4 group)were injected into the buccal and palatal submucosa of the right maxillary first molar.Tooth movement distances were recorded on Days 1,3,7,and 14.Five rats from each group were sacrificed at each time point to obtain maxillary tissue samples.Hematoxylin and eosin(HE)staining was performed to observe the histophysiological changes in the tension-side periodontal tissues.Immunohistochemical staining was used to mark and count CD31-positive cells(microvascular quantification)and to detect the expression of osteocalcin(OCN)in the tension side.Results Measurements of tooth movement distance showed that the Yoda1 group exhibited significantly in-creased tooth movement distances on Days 3,7,and 14(0.238±0.008 mm,0.406±0.011 mm,and 0.746±0.013 mm,respectively)compared to the control group(P＜0.05).In contrast,the GsMTx4 group showed significantly reduced tooth movement distances on Day 7(0.282±0.011 mm)and Day 14(0.578±0.008 mm)compared to the control group(P＜0.05).HE staining results indicated that the periodontal ligament space on the tension side gradually widened with the duration of force application and then gradually returned to normal,with visible osteoblasts.Quantitative analysis of CD31-positive cells(microvascular quantification)showed that the Yoda1 group had significantly increased numbers of blood vessels on Day 3(8.027±0.225)and Day 7(14.320±0.471)compared to the control group(P＜0.05),peaking on Day 7 and then gradually decreasing.The GsMTx4 group showed significantly fewer blood vessels in the periodontal ligament on the tension side on Day 3(6.013±0.177),Day 7(9.187±0.678),and Day 14(12.613±0.334)compared to the control group(P＜0.05).Immunohistochemical results indicated that the Yoda1 group had significantly increased OCN expression on Days 1,3,7,and 14 compared to the control group(P＜0.05),while the GsMTx4 group showed re-duced OCN expression on Days 7 and 14(P＜0.05).Conclusion Activation of the Piezo1 channel promotes orthodon-tic tooth movement,tension-side angiogenesis,and osteogenic remodeling,while inhibition of the Piezo1 channel produces the opposite effect.

Objective To explore the risk factors for suicidal ideation among the relatives and friends of suicide victims through psychological support hotline.Methods Calls from the relatives and friends of suicide victims to the Beijing psychological support hotline between 2009 and 2023 were included.Their current suicidal ideation was assessed by asking whether they had suicidal thoughts in the past two weeks.Demographic information of the callers was collected and the severity of their depression was assessed using the depression diagnostic screening scale.Interviews were conducted to evaluate distress,sense of hope,history of suicide attempts,and suicide risk factors.Logistic regression analysis was used to explore the risk factors for suicidal ideation among callers.Results A total of 360 cases were included in this study.There were 50.3%(181 cases)of the callers reporting suicidal ideation within 2 weeks before the call.Years of education(OR=0.86,95%CI:0.79-0.94)and high levels of hope(OR=0.19,95%CI:0.11-0.32)were protective factors against suicidal ideation in callers.History of suicide attempts(OR=2.01,95%CI:1.20-3.36),high levels of distress(OR=3.28,95%CI:1.92-5.61),and high levels of depression(OR=1.73,95%CI:1.05-2.84)were independent risk factors for suicidal ideation in callers.Conclusions History of suicide attempts,high levels of distress and high levels of depression among the relatives and friends of suicide victims calling the psychological support hotline are risk factors for their own suicidal ideation.

Objective To investigate the inhibitory effect of GsMTx4 on pain sensation in rats during tooth movement,open field ex-periments and immunohistochemical staining by conducting.Methods Fifty-eight male SD rats aged 5-6 weeks were selected and a right maxillary tooth movement model was constructed.The rats were randomly divided into two groups:group A(control group)and group B(GsMTx4 group).They were also divided into 5 subgroups according to 4 h,1 d,3 d,5 d,and 7 d.The left maxillary of the rats in group A was used as group C(blank control group).The open-field test was used to evaluate the pain level of rats.Immunohisto-chemical staining was used to observe the expression of nerve growth factor(NGF)and calcitonin gene-related peptide(CGRP)in peri-odontal tissues.Results At 4 h,1 d,and 3 d,the total distance traveled by rats in group B within 5 minutes in the open-field was higher than that of group A(P＜0.05).At 4 h and 1 d,the percentage of time in the center of rats in group B was higher than that in group A(P＜0.05).The expressions of NGF and CGRP in groups A and B were higher than those in group C on 1 d,3 d,5 d,and 7 d(P＜0.05).The expression of NGF and CGRP in group B were lower than those in group A at 4 h,1 d,and 3 d(P＜0.05).Conclu-sion GsMTx4 can inhibit the expression of NGF and CGRP during tooth movement and relieve the pain caused by tooth movement.

Objective:To explore the clinical manifestations and genetic characteristics of Wolf-Hirschhorn syndrome (WHS) to improve the ability of diagnosis and differential diagnosis of the disease.Methods:The clinical features and auxiliary examinations and treatment of a proband with WHS caused by microdeletion of 4p16.3 segment who admitted to the Third Affiliated Hospital of Zhengzhou University in December 2021 were recorded, and whole exome sequencing (WES) of the family was performed. The prognosis was followed up.Results:The female proband, 11 months old, presented with convulsions at the age of 8 months, with the characteristics of heat sensitivity and cluster seizures, and her identical twin sister had a similar medical history. Physical examination found malnutrition, retarded development, special face, prominent forehead, wide nasal bridge, small jaw, precordial murmur and grade 3/6 murmur in the whole period, hyperactivity of P2, and low limb muscle tone. The whole exon and copy number variation (CNV) test of the family revealed that the proband had a 1.99 Mb heterozygous deletion in the chromosome 4p16.3 segment, including WHSC1 (NSD2), WHSC2 (NEFLA) and other genes. Copy number variation sequencing (CNV-Seq) of the proband and her sister showed 1.97 and 1.92 Mb heterozygous deletion of chromosome 4p16.3, respectively. Genealogical analysis by quantitative polymerase chain reaction revealed that the CNV was de novo, and it was determined to be a pathogenic variant according to the American College of Medical Genetics and Genomics guidelines. The proband took sodium valproate orally, and her sister took oral sodium valproate, zonisamide, and levetiracetam successively, and at the same time they received family rehabilitation training. The age at the last follow-up was 1 year and 8 months. Neither of them had convulsions again in the past 3 months, but the developmental delay was obvious. Conclusion:WHS patients may present with growth retardation, epilepsy, Greek warrior helmet-like special face, and congenital heart disease, and may have microdeletions in the chromosome 4p16.3 segment.

OBJECTIVE To compare the dosage forms and specifications of over-the-counter drug （OTC）（chemical drugs ） for children at home and abroad ，and to provide reference for the addition of new dosage forms and specifications of OTC for children in China . METHODS Data analysis was used to comb the active ingredients of OTC single -ingredient preparation for children in China . The similarities and differences of the dosage forms and specifications of OTC for children with the same active ingredients among China and 8th edition of WHO Model List of Essential Medicines for Children （WHO EMLc ）and US/UK/EU （this article refers specifically to EU countries ）/Japan were analyzed by comparative analysis . RESULTS There were 72 active ingredients of OTC single -ingredient preparation for children in China ，corresponding to 34 dosage forms and 216 specifications； 39 same active ingredients of OTC for children were retrieved in WHO EMLc and US/UK/EU/Japan ，corresponding to 38 dosage forms and 258 specifications. Among OTC for children corresponding to 39 active ingredients ，there were 10 unique dosage forms in China ，and 16 unique dosage forms in WHO EMLc and US/UK/EU/Japan ，of which some dosage forms have advantages for children（such as chewing gums ，gels for external use ，spray for oral liquid ，etc.），were included in the latter while not included in China . There were 107 unique specifications in China ，and 214 unique specifications in WHO EMLc and US/UK/EU/Japan ，of which the division of applicable age groups for specifications was more detailed . In addition ，the dosage forms and specifications corresponding to a few active ingredients （such as ibuprofen ，cetirizine hydrochloride ）were not included in OTC for children in China， while included in UK/EU . CONCLUSIONS The dosage forms and specifications of OTC for children in WHO EMLc and US/UK/EU/Japan are generally more abundant and E-mail：zjfyouyou@163.com flexible than in China . Relevant departments in China should learn from the advanced experience of WHO and foreign countries and increase the research and development of dosage forms and specifications of OTC for children .

Patients with cardiovascular diseases have poor medication adherence, which seriously affects the prognosis of their diseases. This article reviewed the prediction model of medication compliance for patients with cardiovascular diseases, analyzed its predictive factors, model efficacy and application, and put forward opinions on the construction of relevant prediction models, which could provide reference for the clinical development of targeted intervention programs.

Purpose: This study was to investigate the work experience of newly recruited male nurses during the COVID-19 pandemic. Methods: With a phenomenological approach, this qualitative study was adopted semistructured interviews by phone or video calls. A total of 9 male nurses newly recruited for the COVID-19 wards in Chinese hospitals were interviewed for this study. And Colaizzi's method was applied for evaluation in the data analysis. Results: Based on our findings, three themes were extracted. First, the newly recruited male nurses showed negative emotions at the beginning of COVID-19 epidemic, which was caused by changes in working conditions and content, but also prompted the nurses to change the way of coping with the crisis. Second, they gradually mastered the working skills and psychological training to cope with COVID-19 and developed a positive attitude toward life and a high sense of professional responsibility. Finally, we learned about their needs to respond to public health emergencies such as the COVID-19 pandemic. Conclusion COVID-19 is a disaster for all of humanity. The newly recruited male nurses are an important force in emergency rescue. Although they suffered from short-term negative emotions, they quickly adapted to the crisis. In order to better prepare for future emergencies, the disaster response capacity of newly recruited male nurses needs to be further improved. In addition, newly recruited male nurses have a strong demand for timely and personalized career development guidance.

Purpose: This study was to investigate the work experience of newly recruited male nurses during the COVID-19 pandemic. Methods: With a phenomenological approach, this qualitative study was adopted semistructured interviews by phone or video calls. A total of 9 male nurses newly recruited for the COVID-19 wards in Chinese hospitals were interviewed for this study. And Colaizzi's method was applied for evaluation in the data analysis. Results: Based on our findings, three themes were extracted. First, the newly recruited male nurses showed negative emotions at the beginning of COVID-19 epidemic, which was caused by changes in working conditions and content, but also prompted the nurses to change the way of coping with the crisis. Second, they gradually mastered the working skills and psychological training to cope with COVID-19 and developed a positive attitude toward life and a high sense of professional responsibility. Finally, we learned about their needs to respond to public health emergencies such as the COVID-19 pandemic. Conclusion COVID-19 is a disaster for all of humanity. The newly recruited male nurses are an important force in emergency rescue. Although they suffered from short-term negative emotions, they quickly adapted to the crisis. In order to better prepare for future emergencies, the disaster response capacity of newly recruited male nurses needs to be further improved. In addition, newly recruited male nurses have a strong demand for timely and personalized career development guidance.

Breast cancer patients experience many symptoms during treatment. In most cases, the symptoms do not appear alone, but several symptoms appear at the same time and form symptoms cluster, which causes severe physical and mental burden on the patient. This paper summarized the study on symptom cluster of breast cancer patients at home and abroad from the perspectives of concept, categories, influencing factors and management, so as to provide basis for future symptom cluster management.