To carry out the teaching of hospital management in-depth and improve teaching quality, the group of teaching hospital management in 2010, through questionnaires, discussion and other forms, found out and analyzed the teaching situation, including the nature of this course, start time and hours, teacher team, teaching content, teaching methods, evaluation form, and so on. The result was that most students thought it not necessary to open so many courses. Then the article put forward some suggestions and countermeasures to further improve the management course.

Objective To investigate the mechanism of contralateral testicle spermatogenesis impairment following unilateral testicular torsion in rats.Methods Healthy male Sprague-Dawley rats(n=24) were randomly divided into 3 groups:group 1(sham-operation),2 and 3,each comprising 8 rats.Under surgical conditions,the left testes of the rats in groups 2 and 3 were rotated through clockwise 720? torsion,then detorsion after 12 h or 24 h,respectively.The contralateral testes were harvested after 1 month and the relative proportions of germ cells were measured by the flow cytometry(FCM).Anti-rat immunoglobulin G(IgG)antibodies against spermatozoa antigens were detected in contralateral testicular tissue by immunohistochemical method.Results In groups 1,2 and 3,the weight of contralateral testis was(1555.73?(72.34)),(1184.20?101.02) and(783.60?117.93)mg,respectively;the number of apoptotic cells was 53.25?8.61,1622.00?129.31 and 3401.25?179.75,respectively;the positive rates of antisperm antibodies were 0,0.55?0.02 and 0.69?0.03,respectively.There were significant differences in above parameters between groups(P

Objective To describe the status of fatigue and its influencing factors among hypertension patients. Methods A total of 1253 hypertension patients were investigated with global fatigue severity subscale,family APGAR index and self-designed questionnaire. Results 36.7% of hypertension patients were fatigue.Univariate analysis showed that the determinants of fatigue among hypertension patients included older, normal marriage, rural, low educational, mental, family dysfunction (P ＜ 0.05 ). Multivariate analysis revealed that age ( OR =2. 612,95% CI = 2. 047 ～ 3. 333 ), normal marriage ( OR = 1. 754,95% CI = 1. 259 ～ 2. 445 ), manual ( OR =0.810,95 % CI = 0.698 ～ 0.939) and family dysfunction ( OR = 1.717,95 % CI = 1. 396 ～ 2.111 ) were associated with fatigue. Conclusion The rate of status is high in the hypertension patients. The behavior is related to age,marital status, labor type and family function.

Purpose To investigate the clinicopathological characteristics and treatment of combined hepatocellular carcinoma-cholangio carcinoma (cHCC-CC).Methods 24 cases of cHCC-CC were collected.The clinical pathological characteristics,imaging,immunophenotyping and clinical features were retrospectively analyzed and reviewed the literature.Results There were 18 males and 6 females in 24 cases of cHCC-CC.The age ranged from 36 to 68 years (mean age was 54.38).Tumour location:right hepatic lobe in 15 cases,left hepatic lobe in 6 cases,both left lobe and right hepatic lobe in 1 case,hepatic caudate and left lateral lobe in 1 case,diffuse nodular liver tumors in 1 case.Grossly,the texture and color of tumor was related to the composition of tumor.Microscopically,classic cHCC-CC had two areas composed of hepatocellular carcinoma area and cholangiocar cinoma area of mixed distribution or migration distribution.3 cases were cHCC-CC with stem cell properties (cholangiolocellular carcinoma type,CLC type).Immunohistochemical staining revealed that HCC like area mainly expressed CD10,CK8,Hepatocyte and CD10,cHCC-CC area expressed CK7 and EMA.CLC type expressed the immunophenotypic features of intermediate type of HCC.Conclusion The clinical manifestations of cHCC-CC are not specific,the preoperative diagnosis is difficult,and it should be combined with pathological characteristics,imaging features and immunophenotype diagnosis.

Objective To investigate the status of sleep quality and the family-related factors among elder-ly pregnant women who already have one child.Methods A total of 299 elderly pregnant women who already have one child were investigated using pittsburgh sleep quality index(PSQI),family APGAR index and a self-designed questionnaire. Results The total prevalence of poor sleep quality was 30.8% among elderly pregnant women who already have one child.PSQI score was average(6.31 ± 2.95). PSQI score were higher than the adult female norm and pregnant woman for the first time(u=16.396,5.497,P<0.05).Univariate analysis showed that the determi-nants of sleep quality included pregnancy,family support(parents),family support(husband),family support (child),family dysfunction,family right(χ2= 12.312,21.049,18.617,11.682,13.494,6.779,P < 0.05). Logistic regression analysis showed that pregnancy,family support(parents),family support(husband),family support(child)and family dysfunction were associated with sleep quality. Conclusion The poor sleep quality among elderly pregnant women who already have one child is related to low family support(parents,husband, child),obstacle of family dysfunction and late pregnancy.

Disulfiram, a drug that has been used for alcohol dependence. As an approved drug in clinical medicine, disulfiram can be used as the anticancer drug in the treatment of breast cancer, prostate cancer, glioblastoma, lung cancer, etc. This paper summarized the mechanism of disulfiram for anticancer treatment and the function for liver cancer therapy, and we also analyzed the potential mechanism of disulfiram for the treatment of liver cancer and its’ value in the clinical application.

OBJECTIVE: To assess the reliability and validity of Adversity Quotient Scale in evaluating the adversity quotient among nurses. METHODS: A total of 409 nurses were selected as study subjects from three first-class hospitals in Fujian Province by cluster sampling method. The adversity quotient was investigated by Adversity Quotient Scale and its reliability and validity were tested. RESULTS: The Cronbach′s alpha coefficient, Spearman-Brown coefficient, Guttman Split-Harf coefficient and retest reliability of Adversity Quotient Scale were 0.931, 0.826, 0.823 and 0.940, respectively. The content validity ratio of Adversity Quotient Scale was 0.980. The scores of control, attribution, extension and tolerance factors were positively correlated with the total score of Adversity Quotient Scale(correlation coefficients were 0.813, 0.844, 0.874 and 0.822, respectively, P<0.05). Before model modification, the initial model fitting index of confirmatory factor analysis was χ~2/df=3.72, root mean square residual approximate(RMSEA)=0.09, the overall fitting of the model was not high. After model modification, the combined reliability of control, attribution, extension and tolerance factors were 0.780, 0.796, 0.831 and 0.871, respectively. The fitting index of the modified model was χ~2/df=3.08, RMSEA=0.07, showing a good fitting of the model. CONCLUSION: Adversity Quotient Scale has a good reliability and validity in the assessment of nurses, which can be a reliable and effective adversity quotient assessment tool.

Objective:To prepare 99Tc m-hydrazinonicotinamide(HYNIC)-αCD8/Fab ( 99Tc m-αCD8/Fab), and explore the predictive value of 99Tc m-αCD8/Fab SPECT/CT imaging for the efficacy of anti-programmed death-1 (PD-1) immunotherapy. Methods:The αCD8/Fab was modified with HYNIC- N-hydroxysuccinimide (NHS) and IRDye800-NHS to form HYNIC-αCD8/Fab and IRDye800-αCD8/Fab (Dye-αCD8/Fab), respectively. 99Tc m-αCD8/Fab was prepared in sodium bicarbonate buffer (pH=8.5), with SnCl 2 being used as the reducing agent. The labeling yield and radiochemical purity of 99Tc m-αCD8/Fab and its stability in PBS and fetal bovine serum (FBS) were tested in vitro. The mouse spleen and human peripheral blood lymphocytes were isolated for cell-specific binding and blocking experiments of 99Tc m-αCD8/Fab in vitro. SPECT/CT imaging was used to analyze the specific binding ability of the 99Tc m-αCD8/Fab probe in CT26 colon cancer mouse models (BALB/c). The near infrared fluorescence imaging and SPECT/CT imaging were performed to detect the intra-tumoral CD8 + T cell infiltration after anti-PD-1 therapy in tumor bearing mice, and the results were further verified by HE and immunofluorescence staining. CD8 + T cell depletion study was performed to determine the role of CD8 + T cells in the tumor responses to anti-PD-1 therapy. Two-way analysis of variance was used to compare the data difference. Results:The labeling yield of 99Tc m-αCD8/Fab was 90% with a high radiochemical purity (95%) and good stability in vitro (radiochemical purity still more than 80% after 720 min in PBS and FBS). 99Tc m-αCD8/Fab could specifically bind to mouse CD8 + T cells ((10.30±0.81) percent added radioactive dose (%AD)/10 6 cells), compared with the binding ability in human peripheral blood lymphocytes group and CD8 antibody blocking group ((1.78±0.61) and (1.59±0.25) %AD/10 6 cells; F=10.07, P<0.001). SPECT/CT imaging showed that 99Tc m-αCD8/Fab had markedly higher tumor uptake in the CT26 colon cancer mouse models. Near-infrared fluorescence imaging showed that the tumor uptake of 99Tc m-αCD8/Fab in the responsive group was significantly higher than in the nonresponsive group after anti-PD-1 treatment ((8.9±1.1)% vs (7.1±0.8)%; F=4.69, P=0.024), and SPECT/CT imaging found the similar result. HE and immunofluorescence staining of tumor and lymph nodes showed that the proportion of lymphocyte infiltration was higher in the responsive group. Furthermore, CD8 + T cell depletion significantly reversed the therapeutic effect of anti-PD-1 immunotherapy in tumor-bearing mice. Conclusions:In this study, 99Tc m-αCD8/Fab was successfully obtained. CD8-specific SPECT imaging could sensitively visualize the tumor-infiltrating CD8 + T cells, suggesting the potential application value to predict and evaluate the efficacy of immunotherapy in the clinical settings.

AIM: To explore the improvement effect and mechanism of crocin on cognitive impairmrnt of Alzheimer's disease (AD) rats. METHODS: The hippocampus of SD rats were injected with Aβ 25-35 to establish AD model, then rats were randomly divided into AD group, AD + low, medium, high dose of crocin groups (10, 20, 40 mg/kg) and AD + donepezil group (1 mg/kg), intraperitoneal injection treatment for 4 weeks, set sham group. Dark avoidance test and water maze test were used to evaluate the learning and memory abilities of rats, ELISA was used to detect serum Aβ content, HE staining and Tunel staining were used to determine pathological changes and neuronal apoptosis of hippocampus of rats, immunohistochemistry was used to detect the expression of Brdu, Dcx and NeuN in hippocampus of rats, and Western blot was used to detect the protein expression of Aβ, DKK3, β-catenin, p-GSK-3β/GSK-3β, Caspase-3, Bax, Bcl-2 in hippocampus of rats. RESULTS: Compared to sham group, the learning and memory abilities of AD group rats were decreased, serum Aβ content increased, the pathological change in hippocampus was serious, neuronal apoptosis was increased, the expression of Brdu, Dcx, NeuN were decreased, the protein expression of Aβ, DKK3, p-GSK-3β/GSK-3β, Caspase-3, Bax were increased, protein expression of β-catenin, Bcl-2 were decreased (P<0.01). Compared to AD group, after the treatment of doses of crocin and donepezil, the learning and memory abilities of AD rats were improved, serum Aβ content were increased, and the pathological change in hippocampus were alleviated, neuronal apoptosis were reduced, the expression of Brdu, Dcx, NeuN were decreased, the protein expression of Aβ, DKK3, p-GSK-3β/ GSK-3β, Caspase-3, Bax were decreased, the protein expression of β-catenin, Bcl-2 were increased, notely, dose-dependent effect of crocin was significant. CONCLUSION: Crocin reduced neuronal apoptosis and mediated DKK3 to regulate GSK-3β/ β-catenin pathway to improve the cognitive impairment of AD rats.

ObjectiveIn view of the problems of large errors and poor accuracy in pulmonary function testing in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD), a predictive classification model of pulmonary function in patients with AECOPD was proposed by comparing the prediction performance of different machine learning models to find the optimal model. MethodsFrom January, 2018 to February, 2020, 90 patients with different degrees of COPD from the Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University were collected. Six machine learning model algorithms (K-nearest neighbor, logistic regression, support vector machine, naive Bayes, decision tree and random forest) were used to establish AECOPD predictive classification models. Their area under the curve of receiver operating characteristic (AUC-ROC) and accuracy were compared. Ten-fold cross-validation method was used to validate the data set. ResultsThe model based on random forest worked best in predicting and classifying AECOPD patients, with an accuracy rate of 0.844 and an AUC-ROC of 0.916. ConclusionRandom forest-based predictive model is a powerful tool for identifying patients with AECOPD, providing decision support when it is difficult to give a definitive diagnosis.