BackgroundGraduate students frequently face life events， many of which may adversely affect their mental well-being. However， the interaction between life events and the development of depression， anxiety， and somatic symptoms remains unclear. ObjectiveTo explore the relationship between life events and the development of depressive， anxiety and somatic symptoms in graduate students， thereby informing prevention strategies for these conditions. MethodsA sample of 6 722 newly enrolled graduate students at a comprehensive university in Southwest China from September to November 2018 was selected. The assessment was conducted using the Adolescent Self-rating Life Events Checklist （ASLEC）， the 7-item Generalized Anxiety Disorder scale-7 item （GAD-7）， the Patient Health Questionnaire Depression Scale-9 item （PHQ-9）， and the Patient Health Questionnaire-15 （PHQ-15）. Network analysis was implemented by using the bootnet and qgraph packages in the R software （version 4.2.3）， with centrality indices calculated to identify core and bridge symptoms within the network. ResultsThe study encompassed a total of 6 171 graduate students， representing 91.80% of the target population. The prevalence rates of anxiety， depressive， and somatic symptoms among graduate students were 12.59% （777/6 171）， 16.63% （1 026/6 171）， and 27.66% （1 707/6 171）， respectively. Network analysis revealed that 'academic stress' was the core symptom with the highest strength and expected influence （both values=1.207）， while 'feeling down， depressed， or hopeless' was the bridge symptom with the highest bridge strength and bridge expected influence （both values=0.454）. There was no significant difference in global network strength and edge weight between women and men （P>0.05）. ConclusionAcademic stress， emerging as the core symptom， assumes a dominant position within the symptom network and exhibits strong interactions with other negative affective states. There was no gender difference in the network structure.

Objective To investigate the pass rates of fit tests for various brands of medical protective masks and to explore methods for quickly matching these masks based on their head and face dimensions.Methods A total of 202 medical staff from designated hospitals in Tianjin were selected as subjects.Quantitative fit tests were conducted on 5 brands of masks(A,B,C,D,and E)using an aerosol condensation nucleus counter.Two-dimensional photographic measurement was used to obtain the face length and width of the subjects,categorizing them into face types#1 to#10.The pass rates of masks across different face zones,brands,and face types were compared.Results A total of 202 testers participated in this study.According to the guidelines,face type#1 was the most common[43.6%(88/202)],followed by face type#3[18.2%(37/202)].The majority of subjects were categorized as face types#1,#2,#3,and#4,totaling 176 subjects(87.1%).A total of 914 tests were conducted,with 678 passes,resulting in an overall mask pass rate of 74.18%.The pass rates of masks A,B,and C were significantly higher than those of masks D and E[87.03%(161/185),85.57%,(166/194),82.02%(146/178)vs.62.98%(114/181),51.70%(91/176),all P<0.05].The pass rate of adjustable head-mounted masks was significantly higher than that of non-adjustable masks[79.54%(587/738)vs.51.70%(91/176),P<0.05].The fit factor(FF)for mask B in face types#1 to#5 was significantly higher than that in face types#6 to#10[200(163,200)vs.132(86,200),P<0.05].Conclusions Two-dimensional photographic measurement can quickly obtain facial information of the subjects and match the corresponding masks.Hospitals can match masks with higher test pass rates according to the proportion of face types among medical staff.When selecting masks,preference should be given to adjustable head-mounted masks.

Objective:To analyze the composition and clinical characteristics of urinary calculi in infants in Xinjiang.Methods:The clinical data of 75 infants with urinary calculi admitted to the People′s Hospital of Xinjiang Uygur Autonomous Region from January 2016 to December 2021 were retrospectively analyzed, including the general situation of the children, stone-related parameters, random urine pH value, urine culture and biochemical examination results. The serum uric acid, serum calcium, urine pH value, positive rate of urine culture, and stone length between infants with and without ammonium urate stones were compared. Measurement data conforming to normal distribution were expressed as mean ± standard deviation ( ± s), and independent sample t-test was used for inter-group comparison. Measurement data that did not conform to the normal distribution were expressed as the median (interquartile distance) [ M ( Q1, Q3)], and Mann-Whitney U test was used for comparison between groups. The Chi-square test, continuity-corrected Chi-square test or Fisher exact probability method were used for the comparison of count data. Results:The median age of infants with urinary calculi was 23.04 months, and the ratio of male to female was 3.2∶1. More than half of the infants (81.3%, 61/75) came from rural areas, 57.3% (43/75) were malnourished, 33.3% (25/75) were complicated with urinary tract infection, and 8.0% (6/75) were combined with urinary system congenital malformation. The calculi were found in 53 cases (70.67%) of kidney, 27 cases (36.0%) of ureter, 17 cases (22.67%) of urethra and 16 cases (21.33%) of bladder. The analysis of calculi composition showed that there were 44 cases (58.67%) of ammonium urate, 39 cases (52.0%) of calcium oxalate, 14 cases (18.67%) of apatite carbonate and 7 cases (9.33%) of uric acid. Kidney calculi was more common in female infants ( P=0.011). Compared with the infant group ( n=19), calcium oxalate stones were more common in the preschooler group ( n=56) ( P=0.039), but there were not statistical difference in the incidence of ammonium urate, apatite carbonate and uric acid stones. There were not statistical difference in gender, age, place of residence, nutritional status, serum uric acid, serum calcium, urine pH value, positive rate of urine culture, stone maximum diameter and incidence of bladder stones between ammonium urate group and non-ammonium urate group. Conclusions:The incidence of urinary calculi in infants is higher in boys, and the most common site of calculi is the upper urinary tract, especially in female kidney calculi. Ammonium urate is the main component of urinary calculi in infants. Calcium oxalate stones are more common in preschooler group. Infants with urinary calculi are mostly rural residents, and malnutrition and urinary tract infection are more common.

【Objective】 To analyze the clinical characteristics of children with ammonium urate stones in Xinjiang, so as to provide reference for the prevention and treatment of this disease. 【Methods】 The clinical data of all children with ammonium urate stones admitted to the People’s Hospital of Xinjiang Uygur Autonomous Region from 2016 to 2021 were retrospectively analyzed, including age, sex, body mass index, stone site, stone size, stone component, urine pH, urine culture and biochemical examination results. The serum total protein, albumin, sodium, potassium, calcium, magnesium, uric acid and urine pH were compared between the pure and mixed groups. 【Results】 A total of 61 children (31.6%) had ammonium urate stones, their average age was (4.05±3.37) years, and the male to female ratio was 2.21∶1. Among them, there were 37 cases (60.7%) of renal calculi and 50 cases (82.0%) of upper urinary calculi. The most common component of mixed ammonium urate stones was calcium oxalate, including calcium oxalate monohydrate, calcium oxalate monohydrate and calcium oxalate dihydrate. Compared with mixed type, children with pure stone type had a younger age (P=0.001) and a smaller stone size (P=0.003). Positive urine culture was detected in 14 cases (23.0%), 7 of which (50% were infected with Escherichia coli, and 11 (78.6%) with non-urease bacteria. 【Conclusion】 Non-urease bacteria are the main pathogens of urinary tract infection in children with ammonium urate stones. The incidence is higher in boys, and the most common stone location is upper urinary tract. Calcium oxalate is the most common mixed component. Pure type is more common in young children and the stones are relatively small.

Objective:To investigate the efficacy of metagenomic next generation sequencing (mNGS) in the etiological diagnosis of patients with spinal infection, so as to provide reference for timely diagnosis and treatment.Methods:A total of 40 patients with suspected spinal infection admitted to the Department of Infectious Diseases in Henan Provincial People′s Hospital from January 2020 to July 2022 were included. The results of tissue culture, histopathological examination and tissue mNGS detection were analyzed retrospectively. According to the clinical diagnose, the patients were divided into the spinal infection group (28 cases) and the non-spinal infection group (12 cases). The positive rate, sensitivity and specificity of mNGS and tissue culture in the pathogen detection of patients with spinal infection were compared. McNemar test was used for statistical analysis.Results:There were 23 males and 17 females in 40 patients. The positive rate of mNGS was higher than that of tissue culture (75.0%(30/40) vs 12.5%(5/40)), and the difference was statistically significant ( χ2=0.08, P<0.001). Based on clinical diagnostic criteria, the sensitivity of mNGS in the diagnosis of spinal infection was higher than that of tissue culture (82.1% vs 17.9%), with a statistically significant difference ( χ2=0.02, P<0.001), while the specificity compared to the tissue culture (33.3% vs 100.0%), the difference was not statistically significant ( P>0.05). Conclusions:mNGS has a high pathogen detection rate and sensitivity in the etiological diagnosis of patients with spinal infection, which could provide clinical guidance for the diagnosis and treatment of patients with spinal infection.

Objective:To investigate the association between CITP/MMP-1 ratio and the severity of Myocardial fibrosis (MF) in patients with Chronic Heart failure (CHF) and its diagnostic and prognostic value in patients with MF.Methods:A retrospective study was conducted to select 110 cases [86 males, (56.60±11.15) years old;24 females, (60.06±12.02) years old] who were hospitalized in the Department of Cardiology, Teda International Cardiovascular Hospital from May 18, 2021 to February 30, 2022 and underwent magnetic magnetic examination. Serum CITP and MMP-1 were detected by enzyme-linked immunoassay and CITP/MMP-1 ratio was calculated. Plasma brain natriuretic peptide (BNP) was detected by automatic chemiluminescence analyzer. Anova and non-parametric test were used to compare the difference of indexes among all groups. Spearman analysis was used to analyze the correlation between serum collagen metabolites and the severity of myocardial fibrosis. Logistic regression analysis was performed for multivariate analysis, and ROC curve was used to evaluate the auxiliary diagnostic value of related indexes. Major adverse cardiac events within 1 year after discharge were recorded, including cardiogenic death, HF rehospitalization, malignant arrhythmia, and myocardial infarction. The risk factors of poor prognosis were analyzed by Cox regression. Patients were divided by the median value of CITP/MMP-1 ratio or the median value of CITP/MMP-1 ratio and BNP. Survival analysis was performed by Kaplan-Meier and Log Rank test was performed.Results:Serum MMP-1 and BNP in LGE (+) group were higher than those in LGE (-) group (1.79 ng/ml > 0.91 ng/ml, Z=-2.924; 503 pg/ml > 367 pg/ml, Z=-1.932; P<0.05); The CITP/MMP-1 ratio in the LGE (+) group was lower than that in the LGE (-) group (3.84 < 10.85, Z=-3.601, P<0.001). MMP-1 in CHF with arrhythmia group was higher than that in CHF group (1.98 ng/ml > 1.25 ng/ml, Z=-2.016), while CITP/MMP-1 ratio was lower than that in CHF group (3.25 < 5.73, Z=-2.751), all P<0.05. CITP/MMP-1 ratio in CHF patients was negatively correlated with the severity of MF ( r=-0.363, P<0.001), and BNP and MMP-1 were positively correlated with the severity of MF ( r=0.267, r=0.264, P<0.05). Serum BNP was positively correlated with collagen metabolite MMP-1 and negatively correlated with CITP/MMP-1 ratio (all P<0.05). Logistic multivariate regression analysis showed that only CITP/MMP-1 was a predictor of myocardial fibrosis, with an OR value of 0.624 ( P=0.005). ROC curve was used to evaluate serum BNP, MMP-1 and CITP/MMP-1 ratio in the diagnosis of myocardial fibrosis in HF patients, with AUC of 0.653, 0.696 and 0.754, respectively. The accuracy of CITP/MMP-1 ratio in diagnosing fibrosis was better than that of BNP by comparing their AUC, and the difference was statistically significant ( Z=-3.808, P<0.001). Cox regression analysis showed that CITP/MMP-1 ≤3.84 was a risk factor for poor prognosis, OR=2.647 ( P=0.009). Kaplan-Meier survival analysis at 1-year follow-up showed that the survival rate of the group with lower CITP/MMP-1 ratio was significantly lower than that of the group with higher CITP/MMP-1 ratio ( P=0.014). The survival rate of CITP/MMP-1 increased and BNP decreased group was higher than that of CITP/MMP-1 decreased and BNP increased group ( P=0.011). Conclusions:The ratio of CITP/MMP-1 can be used as a negative correlation indicator of the degree of cross-linking, which is better than BNP in the evaluation of MF, and has a good auxiliary diagnostic value for myocardial fibrosis in patients with chronic heart failure, and is expected to become a protective indicator for patients with chronic heart failure and be used in clinical evaluation of myocardial fibrosis. CITP/MMP-1 ratio is associated with the incidence of major adverse cardiac events, and CITP/MMP-1 ≤3.84 can be used as a predictor of prognostic adverse cardiovascular events in CHF patients.

Objective　To retrospectively analyze the relationship between the age of smoking initiation and young stroke.Methods　Patients with ischemic stroke who were ever smokers or current smokers were enrolled in Beijing Tiantan Hospital from January 2018 to December 2020.Young stroke was defined as ages between 18 and 45 years.A multivariate logistic regression model was used to analyze the relationship between the age of smoking initiation and young stroke after adjusting for other confounding factors.Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated.Results　Among 869 patients with ischemic stroke,85 (9.8%) patients were young stroke and 817 (94.5%) patients were males,the average age of smoking initiation was 27.4±10.5 years.In the young stroke group,the average age of smoking initiation was 21.6±5.9 years,significantly lower than that in the middle-aged and older stroke group (28.0±10.7 years,P<0.001).In multivariate logistic regression,compared with the age of smoking initiation ≤25 group,older age of smoking initiation was significantly associated with a higher risk of young stroke (OR 0.17,95% CI 0.08~0.37,P<0.001).As the age of smoking initiation increased,the risk of young stroke decreased (OR 0.41,95%CI 0.26~0.63 per 10 years increment,P<0.001).Conclusion　The age of smoking initiation is an independent predictor of young stroke.The age of smoking initiation was younger,and the risk of young stroke was higher.

Objective:To investigate the clinical characteristics of patients with aspergillus spondylitis, and to provide reference for timely diagnosis and treatment.Methods:The clinical manifestations, imaging performance, laboratory examination results, diagnosis and treatment outcomes of six patients with confirmed aspergillus spondylitis in Department of Infectious Diseases, Henan Provincial People′s Hospital during April 30, 2015 and May 1, 2020 were retrospectively analyzed.Results:The main manifestations of six patients were fever and neck pain or low back pain. The time from the onset of clinical manifestations to diagnosis was more than two months to 14 months. Spine magnetic resonance imaging (MRI) showed long T1 and T2 signals on vertebral body, high pressure lipid signal, obvious enhanced scan enhancement, and paravertebral abscess formation might be presented. Among the six patients, C-reactive protein increased in four patients, erythrocyte sedimentation rate increased in five patients, β-D-glucan test (G test) increased in three patients, galactomannan antigen test (GM test) increased in four patients. Six patients with aspergillus spondylitis were all confirmed by biopsy of diseased tissue for fungal smear, tissue culture or metagenomics next generation sequencing. After treatment with voriconazole or itraconazole, five patients recovered and one patient was still under treatment.Conclusions:The clinical manifestations and imaging examination of patients with aspergillus spondylitis are nonspecific. Peripheral blood G test and GM test need to be combined for diagnosis. The diagnosis depends on tissue puncture pathology examination, and the metagenomics next generation sequencing is needed if necessary.

Objective:To explore abnormal microstructural changes of white matter in patients with white matter lesions(WML) using diffusion tensor imaging(DTI), and to determine the association of such abnormalities of DTI parameters with executive function.Methods:Totally 34 patients with WML were recruited from the department of Neurology, Beijing Tiantan Hospital, Capital Medical University from March 2012 to May 2019.All patients with WML were scored with Hamilton depression scale (HAMD) and Hamilton anxiety scale (HAMA), and assessed with Montreal cognitive assessment (MoCA) and clinical dementia rating(CDR). They were divided into WML-cognitive normal group, WML-vascular cognitive impairment-non dementia group and WML-Dementia group.The Stroop color and word test (SCWT), trail making test-A (TMTA), digit symbol test and verbal fluency test were carried out to evaluate executive function.In addition, the healthy elderly without WML lesions were selected as the control group after they were examined by MRI, and all brains of the subjects went through DTI with Siemens 3.0 T MR.The data were collected and analyzed by voxel based analysis (VBA). The anisotropy and mean diffusion coefficient of DTI in the region of interest (ROI) and other regions in the brain were studied in the four groups, and their correlation with scores of executive function in WML patients was analyzed.Results:(1)In these executive function test, there were significant differences between the patients with cognitive impairment (WML-VAD group, WML-VCIND group) and normal cognition group(WML-CN group, NC group), such as SCWT(B)(65.54±6.24 vs 43.67±0.95, 76.75±2.13 vs 43.67±0. 95, 65.54±6.24 vs 43.66±1.81, 76.75±2.13 vs 43.66±1.81), SCWT(C)(88.58±6.76 vs 61.63±1.31, 96.37±1.47 vs 61 63±1.31, 88.58±6.76 vs 66.31±8.19, 96.37±1.47 vs 66.31±8.19), TMTA(40.47±2.76 vs 30.92±0.47, 44.24±1.43 vs 30.92±0.47, 44.24±1.43 vs 31.99±2.07, 40.47±2.76 vs 31.99±2.07), TMTB(88.66±6.55 vs 80.34±0.61, 96.70±1.72 vs 80.34±0.61, 88.66±6.55 vs 83.10±5.91, 96.70±1.72 vs 83. 10±5.91), Digit Symbol Test(39.25±5.63 vs 47.00±2.55, 31.27±3.93 vs 47.00±2.5, 39.25±5.63 vs 48.86±4.34, 31.27±3.93 vs 48.86±4.34) and Verbal Fluency Test(8.94±1.00 vs 11.71±0.47, 6.64±0.81 vs 11.71±0.47, 8.94±1.00 vs 10.86±0.69, 6.64±0.81 vs 10.86±0.69) scores ( P<0.05); In the patients with cognitive impairment, there were significant differences between WML-VAD group and WML-VCIND group, such as SCWT(B), SCWT(C), TMTA, TMTB, digit symbol test and verbal fluency test scores ( P<0.05); There were significant differences between WML-CN patients and NC group in the scores of SCWT (C), verbal fluency test( P<0.05). (2)FA values in the genu of corpus callosum and the inferior longitudinal fasciculus were negatively correlated with the time of SCWT (B), SCWT (C) and the TMTA( r=-0.436--0.471), but positively correlated with the scores of digit symbol test and verbal fluency test( r=0.428-0.573). MD values in the genu of corpus callosum, the superior/inferior longitudinal fasciculus and the inferior fronto-occipital fasciculus were positively correlated with the time of SCWT (B), SCWT (C) and TMTA( r=0.432~0.609), but negatively correlated with the scores of digit symbol test and verbal fluency test( r=-0.424--0.630, all P<0.003125 after emendation). Conclusion:The executive function of patients with WML-Dementia decreases significantly.The more serious the damage of white matter microstructure, the more serious the damage of executive of function.

ObjectiveTo systematically review the clinical effect of transcatheter arterial chemoembolization with drug-eluting beads (DEB-TACE) versus conventional transcatheter arterial chemoembolization (cTACE) in the treatment of unresectable liver cancer. MethodsPubMed, Embase, Cochrane, and CNKI were searched for articles on clinical control trials of DEB-TACE versus cTACE in the treatment of unresectable liver cancer. The articles were screened according to inclusion and exclusion criteria, and after valid data were extracted, Revman 5.3 software was used for meta-analysis. The two groups were compared in terms of the number of patients with complete remission (CR), partial remission (PR), or stable disease (SD) and 6- and 12-month survival rates. ResultsA total of 12 articles were included, with 1177 patients in total, among whom 519 patients underwent DEB-TACE and 658 underwent cTACE. Compared with the cTACE group, the DEB-TACE group had a significantly higher number of patients with CR (risk ratio ［RR］=1.42, 95% confidence interval ［CI］: 1.18-1.72, P=0.0002), and had a significantly higher 12-month survival rate (RR=1.09, 95% CI: 1.01-1.17, P=0.03). There were no significant differences between the two groups in the number of patients with PR (RR=1.13, 95% CI: 0.97-130, P=0.12), the number of patients with SD (RR=0.82, 95% CI: 0.64-1.05, P=0.12), 6-month survival rate (RR=1.05, 95% CI: 1.00-1.10, P=0.07). ConclusionDEB-TACE has a better therapeutic effect than cTACE with iodinated oil.