Objectives:To investigate the prognostic difference of different revascularization strategies in AMI patients with multi-vessel disease and diabetes.Methods:AMI patients with multi-vessel disease and diabetes admitted to the Department of Cardiology of the First Hospital of Lanzhou University from January 2022 to June 2024 were retrospectively included.Patients were divided into non complete revascularization(NCR)group(n=166),staged complete revascularization(SCR)group(n=152)and immediate complete revascularization(ICR)group(n=120).Baseline clinical characteristics,coronary angiography data and postoperative medication were compared among the groups.Primary endpoint was the major adverse cardiovascular and cerebrovascular events(MACCE)during follow-up.MACCE includes all-cause mortality,cardiogenic mortality,non-fatal myocardial infarction,unplanned revascularization and stroke.The log-rank test was used to analyze the significance of the differences in the cumulative incidence of MACCE among the three groups.Cox regression was used to explore the influencing factors of poor prognosis in patients.Results:There were statistically significant differences among NCR group,SCR group and ICR group in terms of the history of previous percutaneous coronary intervention,the use of intraoperative coronary intravascular ultrasound(IVUS)and the dosage of contrast agent(all P<0.05).During a median follow-up of 21(11,25)months,MACCE events occurred in 59 cases(35.5%)in the NCR group,26 cases(17.1%)in the SCR group,and 30 cases(25.0%)in the ICR group.The Kaplan-Meier curve showed that the differences in the cumulative incidence of MACCE among the three groups were statistically significant(log-rank P<0.001).Using the Bonferroni correction(adjusted α′=0.05/3≈0.0167),pairwise comparisons revealed statistically significant differences between the NCR and SCR groups(log-rank P<0.001)and between the NCR and ICR groups(log-rank P=0.011).However,no statistically significant difference was observed between the SCR and ICR groups(log-rank P=0.228).Cox multivariate regression analysis demonstrated that history of hypertension was an independent risk factor for MACCE in AMI patients with multivessel coronary artery disease and diabetes(HR=1.71,95%CI:1.10-2.64,P<0.05).The difference in the incidence of MACCE between the SCR group and the NCR group was statistically significant(HR=0.45,95%CI:0.28-0.73,P=0.001).Conclusions:Staged complete revascularization serves as the preferred revascularization strategy for AMI patients with multivessel coronary disease and diabetes mellitus.Additionally,for patients with concomitant hypertension,blood pressure management should be intensified to reduce the risk of MACCE.

Objective:To explore the relationship between life events, anxiety, depression, and behavior problems in adolescents.Methods:From September to October 2022, the cluster sampling method was used to select 5 341 adolescents from 4 middle schools in Xinxiang urban area.The subjects and their parents were investigated by the adolescent self-rating life events check list (ASLEC), generalized anxiety disorder scale (GAD-7), patient health questionnaire (PHQ-9), and child behavior checklist (CBCL). SPSS 27.0 software was used for Spearman correlation analysis, and AMOS 28.0 software was used to construct the structural equation model.Results:The scores of anxiety, depression, and behavioral problems were 1 (0, 4), 1 (0, 4), and 3 (0, 10). The total score of life events was 5 (1, 13), and the dimensions scored as follows: interpersonal conflict 1 (0, 4), academic pressure 2 (0, 5), punishment 0 (0, 2), loss 0 (0, 0), health and adaptation problem 0 (0, 1), and others 0 (0, 2). There were positive correlations between life events and its dimensions, depression, anxiety and behavioral problems ( r=0.28-0.69, all P<0.01). In the overall population, anxiety and depression played parallel mediating roles in the impact of life events on behavior problems. Life events could positively predict anxiety ( β=0.68, P<0.01), and anxiety could positively predict behavior problems ( β=0.04, P=0.02). Life events could positively predict depression ( β=0.77, P<0.01), and depression could positively predict behavior problems ( β=0.18, P<0.01). The standardized total effect size of the impact of life events on behavioral problems was 0.622 (95% CI=0.564-0.675). The standardized direct effect size and indirect effect size were 0.460 (95% CI=0.374-0.539) and 0.162 (95% CI=0.108-0.218), accounting for 74.0% and 26.0%of the total effect, respectively. After stratification by gender, the results for male adolescents were consistent with the overall population, while the mediating effect of anxiety was not significant in the female adolescents. Conclusion:Life events can lead to anxiety and depression in adolescents, thereby increasing the risk of behavior problems.

Objective:To explore the relationship between life events, anxiety, depression, and behavior problems in adolescents.Methods:From September to October 2022, the cluster sampling method was used to select 5 341 adolescents from 4 middle schools in Xinxiang urban area.The subjects and their parents were investigated by the adolescent self-rating life events check list (ASLEC), generalized anxiety disorder scale (GAD-7), patient health questionnaire (PHQ-9), and child behavior checklist (CBCL). SPSS 27.0 software was used for Spearman correlation analysis, and AMOS 28.0 software was used to construct the structural equation model.Results:The scores of anxiety, depression, and behavioral problems were 1 (0, 4), 1 (0, 4), and 3 (0, 10). The total score of life events was 5 (1, 13), and the dimensions scored as follows: interpersonal conflict 1 (0, 4), academic pressure 2 (0, 5), punishment 0 (0, 2), loss 0 (0, 0), health and adaptation problem 0 (0, 1), and others 0 (0, 2). There were positive correlations between life events and its dimensions, depression, anxiety and behavioral problems ( r=0.28-0.69, all P<0.01). In the overall population, anxiety and depression played parallel mediating roles in the impact of life events on behavior problems. Life events could positively predict anxiety ( β=0.68, P<0.01), and anxiety could positively predict behavior problems ( β=0.04, P=0.02). Life events could positively predict depression ( β=0.77, P<0.01), and depression could positively predict behavior problems ( β=0.18, P<0.01). The standardized total effect size of the impact of life events on behavioral problems was 0.622 (95% CI=0.564-0.675). The standardized direct effect size and indirect effect size were 0.460 (95% CI=0.374-0.539) and 0.162 (95% CI=0.108-0.218), accounting for 74.0% and 26.0%of the total effect, respectively. After stratification by gender, the results for male adolescents were consistent with the overall population, while the mediating effect of anxiety was not significant in the female adolescents. Conclusion:Life events can lead to anxiety and depression in adolescents, thereby increasing the risk of behavior problems.

Objectives:To investigate the prognostic difference of different revascularization strategies in AMI patients with multi-vessel disease and diabetes.Methods:AMI patients with multi-vessel disease and diabetes admitted to the Department of Cardiology of the First Hospital of Lanzhou University from January 2022 to June 2024 were retrospectively included.Patients were divided into non complete revascularization(NCR)group(n=166),staged complete revascularization(SCR)group(n=152)and immediate complete revascularization(ICR)group(n=120).Baseline clinical characteristics,coronary angiography data and postoperative medication were compared among the groups.Primary endpoint was the major adverse cardiovascular and cerebrovascular events(MACCE)during follow-up.MACCE includes all-cause mortality,cardiogenic mortality,non-fatal myocardial infarction,unplanned revascularization and stroke.The log-rank test was used to analyze the significance of the differences in the cumulative incidence of MACCE among the three groups.Cox regression was used to explore the influencing factors of poor prognosis in patients.Results:There were statistically significant differences among NCR group,SCR group and ICR group in terms of the history of previous percutaneous coronary intervention,the use of intraoperative coronary intravascular ultrasound(IVUS)and the dosage of contrast agent(all P<0.05).During a median follow-up of 21(11,25)months,MACCE events occurred in 59 cases(35.5%)in the NCR group,26 cases(17.1%)in the SCR group,and 30 cases(25.0%)in the ICR group.The Kaplan-Meier curve showed that the differences in the cumulative incidence of MACCE among the three groups were statistically significant(log-rank P<0.001).Using the Bonferroni correction(adjusted α′=0.05/3≈0.0167),pairwise comparisons revealed statistically significant differences between the NCR and SCR groups(log-rank P<0.001)and between the NCR and ICR groups(log-rank P=0.011).However,no statistically significant difference was observed between the SCR and ICR groups(log-rank P=0.228).Cox multivariate regression analysis demonstrated that history of hypertension was an independent risk factor for MACCE in AMI patients with multivessel coronary artery disease and diabetes(HR=1.71,95%CI:1.10-2.64,P<0.05).The difference in the incidence of MACCE between the SCR group and the NCR group was statistically significant(HR=0.45,95%CI:0.28-0.73,P=0.001).Conclusions:Staged complete revascularization serves as the preferred revascularization strategy for AMI patients with multivessel coronary disease and diabetes mellitus.Additionally,for patients with concomitant hypertension,blood pressure management should be intensified to reduce the risk of MACCE.

Purpose To detect the expression of PP1A and GSDME and the abundance of CD8+T lymphocytes in colorectal cancer,and to explore the correlation and clinical significance of PP1A and GSDME mediated pyroptosis.Methods GEPIA da-tabase was applied to analyze the mRNA expression of PP1A and GSDME in colorectal cancer and normal tissues.Western blot assay was used to detect the expression of PP1A in colorectal cancer and the corresponding normal mucosa.Immunohisto-chemistry was applied to detect the expression of PP1A and GS-DME and CD8+T lymphocytes abundance in 107 colorectal car-cinomas and normal mucosa adjacent to the carcinomas.Spearman rank correlation was used to analyze the correlation between PP1A,GSDME and CD8+T cells abundance.Results The GEPIA database search showed that mRNA expression of PP1A and GSDME in colorectal cancer differed compared to normal tissues(P＜0.05).Western blot analysis showed that the relative expression of PP1A in colorectal cancer tissue was significantly higher than that in para-cancerous tissues(0.937 vs 0.643,P＜0.001).Immunohistochemical results showed that the expression of PP1A in colorectal cancer tissues was signifi-cantly higher than that in normal mucosa(P＜0.05).The ex-pression of GSDME in cancer tissue was closely correlated with patients'age,clinical stage and mismatch repair proteins(P＜0.05),and the distribution of CD8+T cells in the cancer infil-tration front was significantly higher than that in the normal mu-cosa,and the distribution of CD8+T cells in the cancer was cor-related with pT stage,clinical stage and lymph node metastasis.Spearman correlation analysis showed that PP1A was negatively correlated with GSDME expression(r=-0.196,P＜0.05).The overall survival PP1A-positive colorectal cancer patients was worse than that of PP1A-negative patients(P＜0.05),and the prognosis of patients was correlated with the degree of differentia-tion,lymph node metastasis,pT stage and clinical stage.Posi-tive expression of PP1A,degree of differentiation,clinical stage,pT stage and lymph node metastasis are independent risk factors affecting the prognosis of colorectal cancer patients.Conclusion PP1A is highly expressed in colorectal cancer and negatively correlated with GSDME-mediated cell pyroptosis,and the differ-ential expression of both is closely related to the progression and prognosis of colorectal cancer,which can be used as a potential indicator for judgment of the prognosis of colorectal cancer pa-tients.The differential distribution of CD8+T cells may be asso-ciated with GSDME-mediated cell pyroptosis and tumor develop-ment.

Objective To explore and optimize the in vitro primary culture method of astrocytes in neonatal mouse cerebral cortex, which provides a better solution for the in vitro culture of astrocytes.Methods In order to opti-mize the in vitro culture method of mouse cerebral cortex astrocytes, 3-day-old C57BL/6J mouse cerebral cortex tis-sues were taken, meninges and blood vessels were removed, digested by pancreatic enzymes and centrifuged, and high-glucose dulbecco's modified eagle medium (DMEM) was added to form cell suspension, which was purified by differential adhesion method, cross hand method and constant temperature shaking method.The cells were inoc-ulated in poly-D-lysine-coated culture bottles with different culture densities, and the purity of astrocytes was deter-mined by morphological observation and immunofluorescence staining.Results The cells were inoculated at a den-sity of 5 × 106 cells per bottle with good effect and high activity.The purity of astrocytes reached 99％ by using high sugar DMEM medium combined with differential adhesion method, cross hand method and constant temperature shaking method.Conclusion The primary culture method of astrocytes in mouse cerebral cortex is successfully es-tablished and optimized.

Objective:This study aimed to evaluate the efficacy and safety of daratumumab as a maintenance treatment after autologous hematopoietic stem cell transplantation (auto-HSCT) in patients with newly diagnosed multiple myeloma (NDMM) .Methods:The clinical data, hematological and renal response, and safety of 15 post-transplant patients with NDMM who had received daratumumab maintenance between May 1, 2022 and June 30, 2023 were retrospectively analyzed.Results:Fifteen patients (11 males and 4 females) with a median age of 58 (41-72) years were included. Thirteen patients did not receive daratumumab during induction therapy and auto-HSCT, 6 patients had renal impairment, and nine patients had high-risk cytogenetics. The median infusion of daratumumab was 12 (6-17) times, and the median duration of maintenance was 6 (1.5-12) months. The treatment efficacy was evaluated in all 15 patients, and daratumumab maintenance therapy increased the rate of stringent complete response from 40% to 60%. The renal response rate and median estimated glomerular filtration rate of six patients with RI-NDMM were also improved. During daratumumab maintenance therapy, the most common hematological grade 3 adverse event (AE) was lymphopenia [4 of 15 patients (26.67%) ], whereas the most common nonhematologic AEs were infusion-related reactions [7 of 15 patients (46.67%) ] and grade 3 pneumonia [5 of 15 patients (33.33%) ]. The five patients with pneumonia were daratumumab naive [5 of 13 patients (38.46%) ], with a median of 8 (6-10) infusions. Among them, the chest computed tomography of three patients showed interstitial infiltrates, and treatment with methylprednisolone was effective. With a median follow-up of 12 months, the 1-year overall survival rate was 93.33%, and only one patient died (which was not related to daratumumab treatment) .Conclusions:Daratumumab was safe and effective as a maintenance agent for post-auto-HSCT patients with NDMM, and AEs were controllable. The most common nonhematologic AE was grade 3 pneumonia, and a less dose-intense maintenance regimen for the first 8 weeks could reduce the incidence of pneumonia.

Objective:To clarify the key genes and biological processes in spermatogenesis, integrate and analyze the differentially expressed genes (DEGs) and key signaling pathways in the differentiation process of human spermatogonia (SPG), and to explore the early molecular mechanism of spermatogenesis, increase the molecular biology understanding of SPG differentiation process.Methods:The transcriptome data of human undifferentiated spermatogonia and differentiated spermatogonia (dSPG) were downloaded from the public database. Hisat2 and StingTie were used to screen DEGs. DEGs were analyzed by gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) functional enrichment analysis. MACS2 software was used to analyze the open chromatin regions (OCRs) in ATAC-seq data.Results:A total of 8 532 DEGs were screened, including 4 127 up-regulated genes and 4 405 down-regulated genes. They regulate the differentiation of SPG through some important biological processes, such as cell cycle, cytokine-mediated signaling pathways, organic matter metabolism, cell movement, and methylation. KEGG enrichment analysis showed that some important signaling pathways including FoxO signaling pathway and JAK-STAT signaling pathway played an important role in SPG differentiation. GO enrichment analysis showed that methylation played an important role in the differentiation of SPG, and the expression of methylation-related genes was significantly different. The TDRDs family was significantly enriched, and 9 TDRDs genes were found to be more active in dSPG. Conclusion:In this study, the differentially expressed genes during SPG differentiation were identified by bioinformatics analysis, and the differences in transcription and chromatin levels of key genes were clarified, which laid an important theoretical foundation for the study of SPG differentiation mechanism.

Objective:To clarify the key genes and biological processes in spermatogenesis, integrate and analyze the differentially expressed genes (DEGs) and key signaling pathways in the differentiation process of human spermatogonia (SPG), and to explore the early molecular mechanism of spermatogenesis, increase the molecular biology understanding of SPG differentiation process.Methods:The transcriptome data of human undifferentiated spermatogonia and differentiated spermatogonia (dSPG) were downloaded from the public database. Hisat2 and StingTie were used to screen DEGs. DEGs were analyzed by gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) functional enrichment analysis. MACS2 software was used to analyze the open chromatin regions (OCRs) in ATAC-seq data.Results:A total of 8 532 DEGs were screened, including 4 127 up-regulated genes and 4 405 down-regulated genes. They regulate the differentiation of SPG through some important biological processes, such as cell cycle, cytokine-mediated signaling pathways, organic matter metabolism, cell movement, and methylation. KEGG enrichment analysis showed that some important signaling pathways including FoxO signaling pathway and JAK-STAT signaling pathway played an important role in SPG differentiation. GO enrichment analysis showed that methylation played an important role in the differentiation of SPG, and the expression of methylation-related genes was significantly different. The TDRDs family was significantly enriched, and 9 TDRDs genes were found to be more active in dSPG. Conclusion:In this study, the differentially expressed genes during SPG differentiation were identified by bioinformatics analysis, and the differences in transcription and chromatin levels of key genes were clarified, which laid an important theoretical foundation for the study of SPG differentiation mechanism.

Objective:To investigate the body composition and sarcopenia in patients with stable chronic obstructive pulmonary disease (COPD) and to analyze the influencing factors.Methods:A total of 220 patients with stable COPD were enrolled in the study from China-Japan Friendship Hospital during July 2018 to December 2019; 220 age and sex-matched healthy subjects (control group 1) and 220 healthy young adults aged 20-40 years (control group 2) were enrolled from the community. The body composition was measured by bioelectrical impedance method. The demographic characteristics, disease conditions, living background and other related factors were collected by questionnaire. T test or one-way ANOVA were used for comparison between groups, and non parametric test was used for non normal distribution data.Results:Compared with the control group 1 and control group 2, the body fat rate ( Z=-10.037, t=-8.411), the fat free mass index ( Z=-8.165, t=-7.856), and appendicular skeletal muscle index (ASMI) ( t=-7.158, t=-11.989) were significantly lower in stable COPD patients ( P<0.05). Among 220 patients with stable COPD, 51 (23.2%) were diagnosed as sarcopenia; the prevalence of sarcopenia was 18.3% (24/131) in men and 30.3% (27/89) in women (χ2=4.297, P=0.038). The decreased ASMI and grip strength in COPD patients with sarcopenia were significantly associated with age≥75 (χ2= 15.746, F= 14.048), female sex ( Z=5.805, t=2.672), low income ( Z=-4.291, t=-4.789), Global Initiative for Chronic Obstructive Lung Disease (GOLD) grade Ⅳ (χ2=22.644, F=3.905), Modified British Medical Research Council (mMRC) Dyspnea Scale grade 4 (χ2=12.475, F=4.369), not receiving systematic health education ( Z=-4.239, Z=-2.474), no exercise (χ2=14.786, F=3.402), insufficient nutrition intake (χ2=40.531, F=10.529). The range of 6-min walking distance was (110-268) m, that was even shorter for patients with mMRC dyspnea scale grade 4 ( F=3.468, P<0.05). Conclusion:The impairment of body composition is common in COPD patients, which will further affect the body function. It is suggested that the routine evaluation of COPD should include the measurement of body composition.