Curcumin can suppress the proliferation of esophageal cancer cells by inducing cell cycle arrest and blocking Notch signaling pathway,and can inhibit the invasiveness of esophageal cancer cells by inhibiting the nuclear factor-κB (NF-κB) signaling pathway and suppressing the formation of tumor blood vessels and inhibiting matrix metalloproteinase (MMP).Curcumin can also regulate apoptosis of esophageal cancer cells by changing the expression and localization of nucleophosmin.

Objective To study the application value of chest low-dose spiral CT for the screening of lung cancer in physical examinees . Methods The data of physical examinees that underwent chest low-dose CT for screening of lung cancer from January 2013 to January 2016 was analyzed, the index included the correlation between age and sex with the detection rate of lung nodules and the detection rate of lung cancer, pathological types and clinical stages of lung cancer and so on. Results 9762 physical examinees underwent chest low-dose spiral CT, the detection rates of pulmonary nodules and lung cancer were 58.16%(5678/9762) and 0.34 % (33/9762) respectively. The detection rate of lung cancer increased with the age, the highest detection rate [1.13 % (8/709)] of lung cancer was found in 80 years old and above, the rate in 60-69 years old group was 0.36%(6/1641). In 33 cases of lung cancer, there were 22 cases in stage Ⅰ, 5 cases in stageⅢ, and 6 cases in stage Ⅳ. Early diagnosis rate was 66.67 % (22/33). Compared with the conventional thoracic spiral CT, the low-dose chest CT had loner radiation dose (P<0.05), and the image can meet the diagnostic requirement. Conclusions Chest low-dose spiral CT has great advantages in the detection of pulmonary nodules and early stage lung cancer. The application of low-dose CT in physical examinees, especially in high-risk groups of lung cancer, can improve the positive rate of lung cancer screening.

Objective To analyze Mycoplasma detection and drug sensitivity test of 3 127 urogenital tract infection women ,and to provides important basis for clinical diagnosis and treatment .Methods Mycoplasma detection and drug sensitivity of 3 127 uro-genital tract infection women were detected .Results Among 3 127 cases ,1 800 patients were detected Mycoplasma ,and the posi-tivity was 57 .6% .The infection rates of Ureaplasma urealyticum(Uu) ,Mycoplasma hominis(Mh) and Uu+ Mh mixed infection were 46 .2% ,1 .2% ,10 .1% .Uu was sensitive to minocycline ,doxycycline and clarithromycin .Mh was sensitive to minocycline , doxycycline and josamycin .Uu+ Mh mixed infection was sensitive to minocycline ,doxycycline and josamycin .Conclusion Myco-p lasma infections have been the major pathogen of urogenital tract diseases ,the clinical treatment should be based on drug sensitivity test .

AIM:To explore the influence of long-term swimming on peripheral neuropathy in type 2 diabetic rats.METHODS:Male Wistar rats were fed with a high-fat and high-fructose diet, and injected with streptozocin to estab-lish a model of type 2 diabetes mellitus.The rats were randomly divided into 4 groups:blank control group (C group), ex-ercise control group ( CE group ) , diabetes mellitus group ( DM group ) and diabetes mellitus +exercise group ( DME group).The rats in CE group and DME group received 8-week swimming training (6 d/week).The training time was 20, 30 and 45 min in the first 3 d,respectively, and then it increased to 60 min a day.Eight weeks later, the motor nerve conduc-tion velocity ( MNCV ) and the levels of tumor necrosis factor α( TNF-α) , interleukin 6 ( IL-6 ) and C-reactive protein ( CRP) in sciatic nerve tissues of the rats were measured .The morphological changes of the sciatic nerve were also observed under light microscope .RESULTS:Compared with DM group , 8-week swimming obviously accelerated the MNCV ( P<0.05), decreased the levels of TNF-α, IL-6 and CRP in DME group (but no significant difference, P>0.05).The obvi-ous nerve injury in DM group was observed .However , the pathological change of the sciatic nerve in DME group was re-lieved.CONCLUSION:Eight-week swimming training significantly accelerates the MNCV , attenuates the nerve injury in diabetic rats and has protective effect on peripheral nerve , which may be correlated with relieving the inflammatory reaction .

Objective To explore the levels and the significance of IL-11 and soluble glycoprotein 130(sgp130) in the treatment of new-diagnosed acute leukemia(AL) during the induced remission. Methods The levels of IL-11 and sgpl30 in 47 patients with acute leukemia were determined by ELISA respectively before treatment and after completed remission(CR), and the number of white blood cell (WBC) and platelet (Plt) were valued by hametometry. Results Plasma IL-11 level of AL patients was significantly lower than normal (P ＜0.05), and increased obviously to the normal level when complete remission was achieved. And it correlated with PLT counts. While sgp130 level was higher than normal (P＜0.05),and declined after CR and correlated with WBC counts. Conclusion The plasma IL-11 and sgp130 levels can be helpful for confirming the diagnosis,evaluating the efficiency and predicting the prognosis of AL.

ObjectiveTo evaluate the one-year follow-up of the therapeutic efficacy of human umbilical cord derived-mesenchymal stem cell (UC-MSC) transplantations in decompensated liver cirrhosis patients with ascites.MethodsFifty-four liver cirrhosis patients with ascites in Research Center for Biological Therapy in 302 Military Hospital were divided into treatment group (n=38) and control group (n=16) in a prospective controlled single-blinded trial.UC-MSC (0.5-1.0) × 106/kg and saline were intravenously transplanted into patients monthly for 3 times in treatment group and control group,respectively.The liver function,hepatitis B virus (HBV) DNA level,ascites and the model for end-stage liver disease(MELD)scores at different time points were compared between two groups.The comparison between groups was done by Mann-Whitney U test,and the data before and after transplantations were compared by Wilcoxon signed rank sum test.ResultsThere were no significant differences of alanine transaminase (ALT),total bilirubin (TBil),cholinesterase (CHE),HBV DNA positive rate and MELD scores at different time points between two groups (P＞0.05).However, the albumin ( A1b)level was significantly increased after 36 weeks of UC-MSC transplantation in treatment group, which were (28.47±4.45)g/L at week 0 and ( 34.82±4.50)g/L at week 48 (P=0.046). Meanwhile, the ascites reduced markedly in treatment group with (46.6 ±30.6) mm at week 0 and (6.6±13.6) mm at week 48,which were significantly different from control group at the end of follow-up (P =0.037). Conclusion UC-MSC transplantations may help to increase A1b level and reduce ascites in patients with decompensated liver cirrhosis.

Objective To measure the present situation of medical students' learning adaptability and find the influencing factors in order to revise Learning Adaptability Scale for medical students.Methods A stratified sampling method was used to collect 1 180 medical students from Harbin Medical University.Using the internal consistency reliability test,the reliability of the revised student learning adaptability scale was verified.Five common factors were extracted by the exploratory factor analysis of the principal analysis method,and Logistic regression was used to analyze the influencing factors of medical student learning adaptability.Results The revised Student Learning Adaptability Scale (Cronbach's Alpha=0.914) consists of 27 measurement items.It includes five dimensions,namely self-directed learning,information utilization,environment choice,stresses response and goal orientation.The results showed that the adaptability of medical students was moderate (3.28 ± 0.52),and the influencing factors included job position (OR =1.496,95％ CI=1.114-2.009),academic achievement (OR =1.638,95 ％ CI=1.386-1.936),satisfaction with learning (OR=2.160,95％CI=1.745-2.673),professional satisfaction (OR=1.369,95％CI=1.092-1.718),professional interest (OR =1.426,95％ CI=1.186-1.715) and employment prospects (OR =1.526,95％ CI=1.251-1.862).Conclusion The reliability and validity of the Student Learning Adaptability Scale is appropriate.Medical students' learning adaptability is influenced by many factors.

AIM:To predict the active compo-nents and targets of Piperlongum L.and the associ-ated signaling pathways involved in pulmonary fi-brosis using network pharmacology and molecular docking technique and evaluate the mechanism of Piperlongum L against pulmonary fibrosis by in vi-tro experiments.METHODS:The active ingredients and targets were retrieved from TCMSP,Swiss Tar-get Prediction and PubChem databases.The dis-ease-related targets were retrieved from Gene-Cards and OMIM databases.The intersection tar-gets of the drugs and disease-related targets were identified using jvenn online tool.String database was used to construct the"drug-component-tar-get"and PPI network and the networks were visual-ized using Cytoscape 3.9.1 software.GO and KEGG enrichment analysis were performed on the inter-section targets using the DAVID tool.The top 20 KEGG pathways,core targets and drug components were used to construct a"component-target-path-way"network and the network visualization was performed using Cytoscape 3.9.1 software.The in-teractions between drug compounds and the tar-gets were evaluated by molecular docking,and the docking results were visualized using Discovery stu-dio.HFL-1 cells were cultured and the effect of the drug compounds on cell viability was determined by MTT assay.The inhibition rate was then calculat-ed to determine the optimal drug concentration.HFL-1 cells were cultured in vitro and were as-signed into 4 groups:control group,TGF-β1 group,TGF-β1+LD group(LD group),TGF-β1+HD group(HD group).CCK-8 kit was used to evaluate the anti-proliferative activity of the drug compounds against HFL-1 cells at 24,48 and 72 h.Plate clone formation assay was performed to evaluate the ef-fect of drugs on the colony formation ability of HFL-1 cells.RT-qPCR and western blot were conducted to determine the effect of the compounds on the mRNA and protein expression levels of α-smooth muscle actin(α-SMA),collagen type Ⅰ(COI-Ⅰ),and collagen type Ⅲ(COI-Ⅲ)in each group.RESULTS:A total of 197 intersection targets of Piperlongum L and anti-pulmonary fibrosis were identified.The core PPI network comprised 29 nodes(targets)and 199 edges(interactions).GO functional analysis showed that the significantly enriched biological processes associated with the compounds in Piper-longum L included negative regulation of apopto-sis,signal transduction,and protein phosphoryla-tion.Significantly enriched cellular components in-cluded cytoplasm,nuclear cytoplasm,plasma mem-brane.Enriched molecular functions associated with the compounds included the same protein binding,serine/threonine/tyrosine kinase activity,and protein binding.A total of 155 significantly en-riched KEGG signaling pathways were identified,with PI3K-Akt signaling pathway was highly associ-ated with PF and was the fourth most enriched pathway.PIK3CA,MAPK3,MAPK1,MTOR,SRC,CCND1,EGFR,PRKCA,BCL2,and GSK3B had the highest connectivity in the components-target-pathway network.Piperlongine,N-(2,5-dimethoxy-phenyl)-4-methoxybenzamide,tetrahydrotanshi-none,pisigenin and piperine were the key com-pounds in Piperlongum L.The molecular docking results showed that all the compounds except N-(2,5-dimethoxyphenyl)-4-methoxybenzamide had good binding activities with interactions observed with 10 proteins.The proliferation ability of the cells in the LD group was significantly lower than that of the TGF-β1 group at 48 h and 72 h(P＜0.05).The proliferation ability of cells HD group was sig-nificantly lower than the LD group at 24,48 and 72 h.The number of clones in each drug group was significantly reduced after treatment with the drugs(P＜0.05).The mRNA and protein expression levels of α-SMA,COI-Ⅰ,COI-Ⅲ in LD and HD groups were significantly lower than the expression levels in the TGF-β1 group.The protein expression levels of p-PI3K/PI3K and p-Akt/AKT were significantly lower in the two dose groups compared with the TGF-β1 group(P＜0.01).CONCLUSION:The results showed that the effect of Piperlongum L against PF is probably through modulation of the PI3K-Akt sig-naling pathway.

Objective:To explore the mediating effect of social support between self-management ability and health-promoting lifestyle in elderly cancer patients with peripherally inserted central catheter (PICC) .Methods:This study was a cross-sectional study. From October 2018 to October 2019, convenience sampling was used to select 472 elderly cancer patients with PICC from two Class Ⅲ Grade A general hospitals in Henan Province as the research subject. The General Information Questionnaire, Cancer Patients PICC Self-management Scale (CPPSM) , Social Support Rating Scale (SSRS) and Health Promotion Lifestyle ProfileⅡ (HPLP-Ⅱ) were used for investigation. The mediating effect of social support between self-management ability and health-promoting lifestyle in elderly cancer patients with PICC was analyzed. A total of 472 questionnaires were distributed, and 467 valid questionnaires were recovered, with a valid recovery rate of 98.9%.Results:Among 467 elderly cancer patients with PICC, the scores of social support, self-management ability, and health-promoting lifestyle were (42.87±7.94) , (147.32±22.17) , and (114.93±25.20) , respectively. There was a positive correlation between social support and self-management ability ( r=0.244, P<0.01) , a positive correlation between social support and health-promoting lifestyle ( r=0.377, P<0.01) , and a positive correlation between self-management ability and health-promoting lifestyle ( r=0.471, P<0.01) . The results of the mediating effect analysis showed that social support played a partial mediating effect between the self-management ability and the health-promoting lifestyle of elderly cancer patients with PICC, accounting for 17.6% of the total effect. Conclusions:Social support is a mediating variable between self-management ability and health-promoting lifestyle in elderly cancer patients with PICC. Medical and nursing staff should pay attention to and improve the social support of elderly cancer patients with PICC, and take corresponding intervention measures to improve the health-promoting behavior and health level of elderly cancer patients.

Objective To translate the English version of Type 2 Diabetes Stigma Assessment Scale(DSAS-2) into Chinese,and to test the reliability and validity of the Chinese version of DSAS-2. Methods The DSAS-2 was translated and adapted according to Chinese culture following the translation and back-retranslation procedure.The reliability and validity of the Chinese version of DSAS-2 was tested among 294 patients with type 2 diabetes. Results The Chinese version of DSAS-2 included three subscales: Treated Differently (6 items), Blame and Judgment (7 items), and Self-stigma (6 items) and contained a total of 19 items.The Cronbach α coefficient of the Chinese version of DSAS-2 was 0.879,the Cronbach α coefficient of three factors was 0.832,0.815 and 0.844,respectively;the test-retest reliability was 0.835. The content validity index was 0.916. The scores of DSAS-2 correlated with the scores of Rosenberg Self-esteem Scale, Patient Health Questionnaire 8- Item Scale and Generalized Anxiety Disorder 7-Item Scale (r =-0.452, 0.443, 0.412, P<0.01). Three factors were extracted by exploratory factor analysis and could explain 55.75% of the total variance. Conclusions The Chinese version of DSAS-2 has acceptable reliability and validity,which can be used to evaluate stigma among patients with type 2 diabetes in China.