Objective To exploer the function and underlying mechanism of Lunasin on sports articular cartilage injury.Methods Wistar rats were randomly divided into control group and model group;after injection molding for 3 times, the model rats were feed for 28 days.Then the model rats were divided into sham model group, 0.01, 0.05 and 0.1 mmol/L Lunasin treatment group respectively.After treatment, ELISA was used to analyze the production of IL-1β,IL-6,TNF-α,MMP-6 and MMP-8.SOD activity and iNOS were evaluated by their ELISA kit.Western blot was used to detect the expression of NRF2, Keap1, LC-3Ⅱ, Bax, Beclin1, p-AMPK, AMPK.Results Compared with control, the dose of IL-1β,IL-6,TNF-α,MMP-6 and MMP-8 in serum of model rats were significantly increased (P<0.05), however, after treatment with Lunasin for 1 month, these inflammatory factors were obviously reduced then that of model rats (P<0.05);Furthermore Lunasin treatment obvi-ously increased SOD activity,up-regulated NRF2 expression and down-regulated the generation of nitric oxide synthase (iNOS) (P<0.05);Additionally, Lunasin can raise the expression of autophagy-related protein(beclin1 and LC-3Ⅱ), reduce the expression of apoptosis protein (Bax) in damaged articular cartilage.ConclusionsLunasin benefits the repair of damaged joints by reducing the production of inflammatory mediators, activating of oxidative stress system and autophagy pathway.

Objective It has been known that hepatopulmonary syndrome(HPS) is related to the imbalance between vasoconstrictors and vasodilators. The aim of the study is to examine the levels of plasma calcitonin gene related peptide (CGRP) and endothelin(ET) in patients with HPS for exploring their roles in HPS formation. Methods The levels of CGRP and ET were measured by radioimmunoassay in 16 cases of HPS, 30 cases of liver cirrhosis without HPS and 15 normal controls. Results The levels of plasma CGRP ((65?15)pg/ml) and ET((78?21)pg/ml) in 16 cases of HPS were significantly higher than those in liver cirrhosis (CGRP (51?15) pg/ml, ET (60?14) pg/ml) and in healthy controls (CGRP (32?12) pg/ml, ET (36?11) pg/ml) ( P 0.05). Conclusions The increase of plasma CGRP and ET is closely associated with the intrapulmonar vascular dilation of HPS and hypoxemia. The levels of plasma CGRP and ET in liver cirrhosis were significantly higher than those in healthy controls ( P

Objective To investigate the stimulated proliferation of colon cancer cells in co-cultures of regenerating hepatocytes. Methods Regenerating hepatocytes(24 hours after partial hepatectomy)were obtained by collagenase perfusion of models of rats undergoing 70% liver resection. To determine whether the ratio of human colon cell line SW480 cells to hepatocytes in co-cultures has influence on their interaction,these cells were cultured in ratios of 1: 101:1, or 10: 1. Proliferation capacity was assessed by the percentage of 3 H-TdR incorporation. Expression of epidermal growth factor receptor(EGFR), insulin-like growth factor1 receptor(IGF-1R)and hepatocyte growth factor receptor(c-met) were analyzed by western blot. Results For co-cultured SW480 and hepatocytes in the ratios of 1: 1 and 1: 10, an increase of disintegrations per minute(dpm) occurred after 72 hours' culture, and lasted at 120 hours' culture(P < 0.05). No difference was found between the group with ratio of 10:1 and control group. Protein levels of EGFR and IGF-1R, but not c-met, were significantly increased between culture of 24 hours and 120 hours; however, no change of these receptors was found in the ratio of 10: 1. Conclusions These results imply that co-culturing human colon cancer cells with regenerating hepatocytes leads to increased expression of EGFR and IGF-1R. We conclude that this effect is probably dependent on paracrine stimulation, by which numerous signals from the hepatocytes contribute to the hyperproliferative state of colon cancer cells via up-regulating the responding receptors.

AIM:To investigate the effects of glucagon-like peptide-1 (GLP-1) on mRNA expression of SOCS-3 and SREBP-1c in the rats with nonalcoholic fatty liver disease.METHODS:Male SD rats were randomly divided into normal control ( NC) group, high fat ( HF) group and HF+liraglutide ( Lira) group.The rats in HF group and HF+Lira group were given high-fat diet for 16 weeks.After 12 weeks of high-fat diet feeding in HF+Lira group, Lira (600μg? kg-1? d-1 ) was intraperitoneally injected for 4 weeks.At the end of the 16th week, the rats were killed.The pathologi-cal changes of the liver were observed under optical microscope.The serum levels of alanine aminotransferase ( ALT) , as-partate aminotransferase ( AST) , triglyceride ( TG) and total cholesterol ( TC) were detected by automatic biochemical an-alyzer.TG contents of liver were measured by GPO-PAP method.The fasting insulin ( FINS) was determined by ELISA, and insulin resistance index was assessed by homeostasis mode assessment ( HOMA-IR) .The mRNA expression of SOCS-3 and SREBP-1c in the liver tissues was detected by RT-qPCR.RESULTS:Compared with NC group, HOMA-IR, TG of liver, and the serum levels of ALT, AST, TG, TC and FINS in HF group were obviously increased (P<0.01).Compared with HF group, HOMA-IR, TG of liver, and the serum levels of ALT, AST, TG, TC and FINS in HF+Lira group were all obviously decreased (P<0.05 or P<0.01).The mRNA expression of SOCS-3 and SREBP-1c in HF group was signifi-cantly higher than that in NC group (P<0.01).The mRNA expression of SOCSV3 and SREBP-1c in HF+Lira group was significantly decreased as compared with HF group (P<0.05).CONCLUSION:Liraglutide may improve the IR and re-
duce TG of liver through decreasing the mRNA expression of SOCS-3 and SREBP-1c, so as to play a therapeutic role in nonalcoholic fatty liver disease.

Objective To investigate the effect of super-selective intracoronary administration on acute myocardial in farction patients.Methods A total of 240 patients with ST-segment elevation myocardial infarction who received emergency percutaneous coronary intervention in our department from March 2012 to January 2014 were selected and divided into the intravenous drug administration group (n=77),the conventional intracoronary drug administration group (n=81) and the super-selective intracoronary drug administration group (n=82).Parameters,including the Thrombolysis in Myocardial Infarction (TIMI) classification,ST segment resolution after operation,peak values of creatine kinase MB (CK-MB) and troponin-I (cTn-I),left ventricular ejection fraction,left ventricular end-diastolic diameter (LVEDD),major adverse cardiovascular events and bleeding events,were compared between the groups.Results There were no significant differences in TIMI flow grade between the three groups (x2 =0.14,P=0.529).The percentage of patients with complete ST segment resolution after operation was higher in the super-selective intracoronary drug administration group than in the intravenous drug administration and conventional intracoronary drug administration groups (74.4％ vs.62.3％,61.7％,x2 =8.24,P＜0.05).Peak values of CK-MB and cTn-I were lower in the super-selective intracoronary drug administration group than in the other groups (P＜0.05).There were no significant differences in left ventricular ejection fraction and LVEDD between the three groups after operation,but left ventricular ejection fraction and the incidence of angina pectoris significantly improved in the super-selective intracoronary drug administration group than in the other groups after a three month follow-up (P＜0.05).There were no significant differences in target lesion revascularization,nonfatal myocardial infarction and druginduced thrombocytopenia between the three groups (P ＞ 0.05).Conclusions Super-selective intracoronary drug administration can significantly enhance cardiac function and alleviate angina pectoris in patients with acute myocardial infarction,and should be a recommended method.

Objective:To analyze a Risk Scale for Emergence Agitation After General Anesthesia in Children (the EA risk scale) into simplified Chinese and evaluate the reliability and validity in children with strabismus correction surgery.Methods:After obtaining the authorization of the original author, the English version of the EA risk scale was translated, translated back and culturally debugged to form the Chinese version of the EA risk scale. Then 279 children with strabismus correction surgery were selected from a tertiary hospital of ophthalmology in Tianjin and were investigated to validate the scale.Results:The correlation coefficients of each item and the total score of the scale were respectively 0.768 (item 1) ,0.717(item 2), 0.676(item 3), 0.634(item 4) (all P < 0.01). Content validity index of the scale was 0.920, and each item was 0.80-1.00. One factors including 4 items were identified using exploratory factor analysis, accounting for 62.052% of the total variance. The optimal cut-off value for the EA risk in children was 10, with the AUG was 0.816, specificity of 0.704, and sensitivity of 0.839. The Cronbach α coefficient for the total scale was 0.819, and the intraclass correlation coefficient value between the scorers was 0.835. Conclusion:The Chinese version of the EA risk scale has good reliability and validity. The items are concise, clear, and easy to understand. It is suitable for clinical departments as a preliminary screening tool to identify emergence agitation after general anesthesia on children with strabismus correction surgery and to assess the risk of its occurrence.

Objective To explore the effect of Botulinum toxin type A (BTX-A) injection combined with rehabilitation training and medicated bath on spasm for children with cerebral palsy. Methods 80 children with spastic and mixed cerebral palsy were randomly divided into two groups with 40 cases in each group. The control group received physical therapy, and the observation group received BTX-A injection and rehabilitation training and medicated bath. They were assessed with modified Ashworth scale (MAS) and Gross Motor Function Measure (GMFM-88) before and 3 months after treatment. Results The scores of MAS and GMFM were better in 2 groups after treatment (P<0.05) and the observation group was better than that of the control group (P<0.05). Conclusion BTX-A injection combined with medicated bath can reduce muscle tension, improve gross motor function of children with spastic and mixed cerebral palsy.

Objective:Using lasso regression analysis to screen out the blood lipid indexes closely related to coronary heart diseaseMethods:The clinical data of 3 062 patients with coronary heart disease who were hospitalized in the Department of Cardiology, Affiliated Hospital of Jining Medical College from May 2013 to November 2015 were retrospectively analyzed.They were divided into control group ( n=2 427) and coronary angiography group ( n=635). R language was used for statistical analysis.Multiple logistic regression models were established for indicators of blood lipid related to CAD, and their multicollinearity severity was assessed.LASSO regression was used to screen out the representative lipid parameters in the CAD prediction model. Results:A total of 3 062 patients were enrolled, including 2 427 patients in coronary heart disease group and 635 patients in control group.The inclusion of lipid parameters into multiple logistic regression model leads to serious multicollinearity.Stepwise regression can only partially reduce multicollinearity severity, while LASSO regression model significantly reduces multicollinearity severity.Low density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C) and non-high density lipoprotein cholesterol (non-HDL-C) were found to be the representative lipid indexes for predicting coronary heart disease by LASSO regression analysis.Conclusion:LASSO regression has advantages in processing multicollinearity data.LASSO regression showed that LDL-C, HDL-C and non-HDL-C were representative lipid indicators for predicting coronary heart disease..

Objective To improve the teaching methods of graduate students, and provide the theoretical basis for other teaching hospitals to extend the preclinical training mode of clinical medicine professional degree students. Methods 90 clinical medical postgraduate students of Grade 2012 were divided into four groups according to their specialized field and 54 hours of pre-job clinical intensive training were conducted at the same time. The training included four modules lectured by teachers with physician-in-charge above title, such as communication between doctors and patients and medical history collection, physical examination, medical record writing as well as theory of knowl-edge. Before and after the implementation of intensive training, these four skills and knowledge of the students were tested and assessed by professional teachers. Relevant data were paired t test, ANOVA and non-parametric tests. Results The test results of patient-doctor communication and patient history collection, physical examination, complete medical records and theoretical examination results of each group after training were improved to be higher than before (P<0.05). And the effect of patient-doctor communication and patient history collection was the most significant. The doctor-patient communica-tion and history acquisition performance of different groups of graduate students had statistically sig-nificant difference (P=0.001). Conclusion Strengthening the preclinical comprehensive training for medical postgraduate can make the students master the basic clinical skills better and more effectively and the corresponding training methods are worthy of popularization to the other teaching hospitals.

Objective:To determine the predictive value of atherogenic index of plasma (AIP) on the long-term prognosis of patients with coronary artery disease (CAD).Methods:A total of 2 500 patients with coronary heart disease who underwent coronary angiography in Affiliated Hospital of Jining Medical University from May 2013 to November 2015 were retrospectively analyzed. According to the AIP value, the subjects were divided into low AIP group (AIP<0.06) and high AIP group (AIP≥0.06). The incidence of major adverse cardiovascular events (MACE) was compared between the two groups. Kaplan-meier method was used to evaluate the MACE-free survival rate, and multivariate Cox survival analysis was used to evaluate the independent predictors of MACE.Results:A total of 2 427 patients were followed up, with a follow-up rate of 97.08% and a median follow-up time of 4.29 years. There were 1 123 cases in the low AIP group and 1 304 cases in the high AIP group, among which 624 patients (25.7%) had MACE. The total incidence of MACE in the high AIP group was higher than that in the low AIP group ( HR=1.43, 95% CI: 1.22-1.68, P<0.01). Kaplan-meier curves showed that the MACE-free survival rate was significantly lower in the high AIP group ( P<0.01). After adjusting for multiple confounding factors, AIP was still associated with the prognosis of CHD patients. Increased AIP (≥0.06) was an independent predictor of MACE in CHD patients within 4 years ( HR=1.34, 95% CI: 1.14-1.58, P<0.01). Conclusions:AIP (≥0.06) was an independent predictor of MACE occurrence in patients with CAD within 4 years. AIP has a certain value in the long-term prognosis of patients with CAD.