Objective To explore the potential target and mechanism of Dengzhan Shengmai capsule (DZSM) in the treatment of coronary heart disease (CHD) based on network pharmacology and molecular docking technology. Methods TCMSP and ETCM databases were employed to search the chemical components of DZSM. Swiss ADME database was used to screen active ingredients, and Swiss Target Prediction database was used to obtain potential targets of active ingredients. The CHD target was obtained by searching GeneCards and DisGeNET databases, and the DZSM-active ingredient-CHD target network was constructed. Molecular docking of key active ingredients and core targets was performed to verify binding properties. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) enrichment analysis were performed in the DAVID database. A mouse macrophage cell line (RAW264.7 cells) model induced by oxidized low density lipoprotein (ox-LDL) was used to test the therapeutic effect of scutellarin on CHD in vitro. The production of nitric oxide (NO) in cell supernatant was measured by Griess reaction. Real-time quantitative polymerase chain reaction (qRT-PCR) was used to detect the expression level of serine/threonine kinase (AKT); The expression and phosphorylation of AKT protein were detected by Western Blot. Results A total of 56 active compounds of DZSM were obtained to regulate CHD progression by acting on 136 targets. Among them, kaempferol, quercetin, luteolin, apigenin, scutellarein, 6-hydroxykaempferol, scutellarin, nonylphenol, Ophiopogonin D, and Ginsenoside Rb1 could regulate 113 CHD targets. AKT1, SRC, PPARG, EGFR, ESR1, PTGS2, SIRT1, MAPK1, MMP9 and PPARA genes were the core targets of DZSM therapy for CHD. Molecular docking showed that the key active ingredients and core targets had good binding properties. The results of in vitro experiments showed that scutellarin could reduce the production of nitric oxide and increase the level of AKT, protein expression and phosphorylation in macrophages (P < 0.05). KEGG enrichment analysis showed that DZSM treated CHD mainly by regulating cancer pathways, endocrine resistance, AGE-RAGE signaling pathway in diabetic complications, fluid shear stress and atherosclerosis, lipid and atherosclerosis, and relaxin signaling pathway. Conclusion DZSM plays a role in the treatment of CHD through multi-component, multi-target and multi-pathway.

Objective:Lung cancer is characterized by its high incidence and case fatality rate.Factors related to population composition and cancer prevention programme policy have an effect on the incidence and diagnosis of lung cancer.This study aims to provide scientific support for early diagnosis and treatment of lung cancer by investigating the clinic information,pathological,and imaging characteristics of surgical patients with lung cancer. Methods:The data of 2 058 patients,who underwent surgery for lung cancer in the Department of Thoracic Surgery of Xiangya Hospital of Central South University from 2016 to 2019,were retrospectively collected to analyze changes in clinic information,pathological,and imaging characteristics. Results:From 2016 to 2019,the number of patients per year was 280,376,524,and 878,respectively.Adenocarcinoma(68.1%)was the most common pathological type of surgical patients with lung cancer.From 2016 to 2019,the proportion of adenocarcinoma was increased from 55.5%to 74.1%.The proportion lung cancer patients in stage IA was increased from 38.9%to 62.3%,and the proportion of patients who underwent sublobar resection was increased from 1.8%to 8.6%.The proportion of lymph node sampling was increased in 2019.Compared with the rate in 2016,the detection rate of nodules with diameter≤1 cm detected by CT before surgery in 2019 was significantly improved(2.0%vs 18.2%),and the detection rate of nodules with diameter>3 cm was decreased(34.7%vs 18.3%).From 2016 to 2019,the proportion of lesions with pure ground-glass density and partial solid density detected by CT was increased from 2.0%and 16.6%to 20.0%and 37.3%,respectively.The proportion of solid density was decreased from 81.4%to 42.7%. Conclusion:The number of lung cancer surgery patients is rapidly increasing year by year,the proportion of CT-detected purely ground-glass density and partially solid density lesions are increasing,the proportion of patients with adenocarcinoma is rising,the proportion of early-stage lung cancer is increasing,smaller lung cancers are detected in earlier clinical stage leading to a more minimally invasive approach to the surgical methods.

Background/Aims: Despite the high efficacy of direct-acting antivirals (DAAs), approximately 1–3% of hepatitis C virus (HCV) patients fail to achieve a sustained virological response. We conducted a nationwide study to investigate risk factors associated with DAA treatment failure. Machine-learning algorithms have been applied to discriminate subjects who may fail to respond to DAA therapy. Methods: We analyzed the Taiwan HCV Registry Program database to explore predictors of DAA failure in HCV patients. Fifty-five host and virological features were assessed using multivariate logistic regression, decision tree, random forest, eXtreme Gradient Boosting (XGBoost), and artificial neural network. The primary outcome was undetectable HCV RNA at 12 weeks after the end of treatment. Results: The training (n=23,955) and validation (n=10,346) datasets had similar baseline demographics, with an overall DAA failure rate of 1.6% (n=538). Multivariate logistic regression analysis revealed that liver cirrhosis, hepatocellular carcinoma, poor DAA adherence, and higher hemoglobin A1c were significantly associated with virological failure. XGBoost outperformed the other algorithms and logistic regression models, with an area under the receiver operating characteristic curve of 1.000 in the training dataset and 0.803 in the validation dataset. The top five predictors of treatment failure were HCV RNA, body mass index, α-fetoprotein, platelets, and FIB-4 index. The accuracy, sensitivity, specificity, positive predictive value, and negative predictive value of the XGBoost model (cutoff value=0.5) were 99.5%, 69.7%, 99.9%, 97.4%, and 99.5%, respectively, for the entire dataset. Conclusions Machine learning algorithms effectively provide risk stratification for DAA failure and additional information on the factors associated with DAA failure.

Humans ; Otitis Media, Suppurative ; Chronic Disease ; Biofilms ; Otitis Media

Pediatric acute hyperextension spinal cord injury (SCI) named as PAHSCI by us, is a special type of thoracolumbar SCI without radiographic abnormality and highly related to back-bend in dance training, which has been increasingly reported. At present, it has become the leading cause of SCI in children, and brings a heavy social and economic burden. Both domestic and foreign academic institutions and dance education organizations lack a correct understanding of PAHSCI and relevant standards, specifications or guidelines. In order to provide standardized guidance, the expert team formulated this guideline based on the principles of science and practicability, starting from the diagnosis, differential diagnosis, etiology, admission evaluation, treatment, complications and prevention. This guideline puts forward 23 recommendations for 14 related issues.
Child ; Humans ; Spinal Cord Injuries/complications* ; Spinal Cord

Objective:To explore the role of active screening in the diagnosis and treatment of early lung cancer, and give health management recommendations.Methods:A retrospective study was conducted to collect lung cancer patients who had complete population sociology, clinical information, pathology and imaging characteristics in the Thoracic Surgery in Xiangya Hospital of Central South University from 2016 to 2019. According to different diagnostic modes, they were divided into an active screening group (1082 cases) and a passive case finding group (974 cases), to analyze their differences in demographic sociological, clinical information, pathology and imaging characteristics, and to discuss the key points of population management in the active screening group.Results:From 2016 to 2019, the proportion of lung cancer patients in the active screening group increased from 36.1% to 54.2%, and the proportion of patients found to have lung cancer by CT examination in the active screening group increased from 82.2% to 96.8%. Compared with the passive case finding group, the active screening group had a higher proportion of women, non-smokers, patients with precursor glandular lesions and adenocarcinoma, patients in stage 0 and stage I, patients with lesion diameter (d)≤1 cm and 1

Objective To investigate the effects of isoproterenol administration on myocardial in-jury and establish acute myocardial infarction(AMI)model in mice.Methods Mice were injected subcutaneously with isoproterenol(150 mg/kg),and blood samples were taken at different time points.The contents of AMI related indexes[creatine kinase(CK),creatine kinase isoenzyme(CK-MB),cardiac troponin T(cTnT),lactate dehydrogenase(LDH),alanine aminotransferase(ALT),aspar-tate aminotransferase(AST),interleukin 6(IL-6),procalcitonin(PCT)and C-reactive protein(CRP)]in serum were detected.The pathological changes of cardiac tissue were observed by hematoxy-lin-eosin staining.Results The serum levels of CK,CK-MB,LDH,cTnT,ALT and AST were signifi-cantly increased after isoproterenol model(P＜0.05,P＜0.01);after two consecutive administrations of isoproterenol,the serum AMI-related indexes increased significantly,and the relevant indexes reached the highest concentration 16 h after administration(P＜0.05,P＜0.01).Hematoxylin-eosin staining results showed that pathological changes occurred in myocardial tissue.Conclusion Subcutaneous injection of isoproterenol induces AMI injury.The AMI injury at 16 h after two consecutive injections is the most serious,which lays a foundation for clinical drug research and innovative drug development of AMI.

Objective To investigate the effects of isoproterenol administration on myocardial in-jury and establish acute myocardial infarction(AMI)model in mice.Methods Mice were injected subcutaneously with isoproterenol(150 mg/kg),and blood samples were taken at different time points.The contents of AMI related indexes[creatine kinase(CK),creatine kinase isoenzyme(CK-MB),cardiac troponin T(cTnT),lactate dehydrogenase(LDH),alanine aminotransferase(ALT),aspar-tate aminotransferase(AST),interleukin 6(IL-6),procalcitonin(PCT)and C-reactive protein(CRP)]in serum were detected.The pathological changes of cardiac tissue were observed by hematoxy-lin-eosin staining.Results The serum levels of CK,CK-MB,LDH,cTnT,ALT and AST were signifi-cantly increased after isoproterenol model(P＜0.05,P＜0.01);after two consecutive administrations of isoproterenol,the serum AMI-related indexes increased significantly,and the relevant indexes reached the highest concentration 16 h after administration(P＜0.05,P＜0.01).Hematoxylin-eosin staining results showed that pathological changes occurred in myocardial tissue.Conclusion Subcutaneous injection of isoproterenol induces AMI injury.The AMI injury at 16 h after two consecutive injections is the most serious,which lays a foundation for clinical drug research and innovative drug development of AMI.

OBJECTIVES: To analyze the Nogo-P3 component of event-related potential (ERP) in the process of visual acuity processing, to provide electrophysiological evidence for objective evaluation of visual acuity. METHODS: Twenty-six subjects with no other ocular diseases except for ametropia were recruited, and all subjects had uncorrected visual acuity both eyes 1/10 (evaluated using Monoyer chart). Block letter E with different visual angles and directions were used as graphic stimuli. The Go/Nogo paradigm was used for ERP studies. The visual angle of Go stimulation angle was 1°15', Nogo stimuli were 1°15', 55', 24' and 15'. The visual acuity test was performed on each of the two naked eyes separately in all subjects, and the characteristics of the Nogo-P3 component were analyzed. RESULTS: The latency of Nogo-P3 showed no difference between the stimuli of 1°15' and 55', and between Nogo stimulation angle 24' and 15'. There was significant difference between Nogo stimulation angle 1°15' and 24', and between Nogo stimulation angle 1°15' and 15' (P<0.05). There was significant difference between Nogo stimulation angle 55' and 24', and between Nogo stimulation angle 55' and 15' (P<0.05). No significant differences were observed in the Nogo-P3 amplitude among Nogo stimulation. CONCLUSIONS In the Go/Nogo paradigm, Nogo-P3 can reflect the cognitive response of subjects to Nogo stimulation, which can be used for objective evaluation of visual acuity.
Electroencephalography ; Evoked Potentials/physiology* ; Humans ; Photic Stimulation ; Reaction Time/physiology* ; Refractive Errors ; Visual Acuity

Objective: To analyze the clinical epidemiological characteristics including composition of pathogens , clinical characteristics, and disease prognosis acute bacterial meningitis (ABM) in Chinese children. Methods: A retrospective analysis was performed on the clinical and laboratory data of 1 610 children <15 years of age with ABM in 33 tertiary hospitals in China from January 2019 to December 2020. Patients were divided into different groups according to age,<28 days group, 28 days to <3 months group, 3 months to <1 year group, 1-<5 years of age group, 5-<15 years of age group; etiology confirmed group and clinically diagnosed group according to etiology diagnosis. Non-numeric variables were analyzed with the Chi-square test or Fisher's exact test, while non-normal distrituction numeric variables were compared with nonparametric test. Results: Among 1 610 children with ABM, 955 were male and 650 were female (5 cases were not provided with gender information), and the age of onset was 1.5 (0.5, 5.5) months. There were 588 cases age from <28 days, 462 cases age from 28 days to <3 months, 302 cases age from 3 months to <1 year of age group, 156 cases in the 1-<5 years of age and 101 cases in the 5-<15 years of age. The detection rates were 38.8% (95/245) and 31.5% (70/222) of Escherichia coli and 27.8% (68/245) and 35.1% (78/222) of Streptococcus agalactiae in infants younger than 28 days of age and 28 days to 3 months of age; the detection rates of Streptococcus pneumonia, Escherichia coli, and Streptococcus agalactiae were 34.3% (61/178), 14.0% (25/178) and 13.5% (24/178) in the 3 months of age to <1 year of age group; the dominant pathogens were Streptococcus pneumoniae and the detection rate were 67.9% (74/109) and 44.4% (16/36) in the 1-<5 years of age and 5-<15 years of age . There were 9.7% (19/195) strains of Escherichia coli producing ultra-broad-spectrum β-lactamases. The positive rates of cerebrospinal fluid (CSF) culture and blood culture were 32.2% (515/1 598) and 25.0% (400/1 598), while 38.2% (126/330)and 25.3% (21/83) in CSF metagenomics next generation sequencing and Streptococcus pneumoniae antigen detection. There were 4.3% (32/790) cases of which CSF white blood cell counts were normal in etiology confirmed group. Among 1 610 children with ABM, main intracranial imaging complications were subdural effusion and (or) empyema in 349 cases (21.7%), hydrocephalus in 233 cases (14.5%), brain abscess in 178 cases (11.1%), and other cerebrovascular diseases, including encephalomalacia, cerebral infarction, and encephalatrophy, in 174 cases (10.8%). Among the 166 cases (10.3%) with unfavorable outcome, 32 cases (2.0%) died among whom 24 cases died before 1 year of age, and 37 cases (2.3%) had recurrence among whom 25 cases had recurrence within 3 weeks. The incidences of subdural effusion and (or) empyema, brain abscess and ependymitis in the etiology confirmed group were significantly higher than those in the clinically diagnosed group (26.2% (207/790) vs. 17.3% (142/820), 13.0% (103/790) vs. 9.1% (75/820), 4.6% (36/790) vs. 2.7% (22/820), χ²=18.71, 6.20, 4.07, all P<0.05), but there was no significant difference in the unfavorable outcomes, mortility, and recurrence between these 2 groups (all P>0.05). Conclusions: The onset age of ABM in children is usually within 1 year of age, especially <3 months. The common pathogens in infants <3 months of age are Escherichia coli and Streptococcus agalactiae, and the dominant pathogen in infant ≥3 months is Streptococcus pneumoniae. Subdural effusion and (or) empyema and hydrocephalus are common complications. ABM should not be excluded even if CSF white blood cell counts is within normal range. Standardized bacteriological examination should be paid more attention to increase the pathogenic detection rate. Non-culture CSF detection methods may facilitate the pathogenic diagnosis.
Adolescent ; Brain Abscess ; Child ; Child, Preschool ; Escherichia coli ; Female ; Humans ; Hydrocephalus ; Infant ; Infant, Newborn ; Male ; Meningitis, Bacterial/epidemiology* ; Retrospective Studies ; Streptococcus agalactiae ; Streptococcus pneumoniae ; Subdural Effusion ; beta-Lactamases