Objective To construct targeted ultrasound contrast agent carried goat anti-mouse IgG antibody (UCA-IgG) and evaluate the effectiveness of its targeted adhesion using parallel plate flow chamber. Methods The ultrasound contrast agent targeted to mouse IgG was designed by conjugating monoclonal antibodies against mouse lgG to the lipid monolayer shell of the agent using biotin-streptavidin. The binding of IgG antibodies to the ultrasound contrast agent were identified by fluorescence in vitro. The attachment and detachment of UCA-IgG to mouse IgG immobilized on a culture dish were assessed in a parallel-plate flow chamber. While the plate lacked mouse IgG,or blocked with large number of goat anti-mouse IgG were served as two control groups. Results UCA-IgG issued a bright green fluorescence, while the contral lipid ultrasound contrast agent didn't show fluorescence. The number of UCA-IgG bound to mouse IgG of experimental group was greater than two control groups,increased with increasing coverslips surface antibody concentrations (P<0. 05),and there was significant positive correlation between the number of UCA-IgG bound to mouse IgG and time of combination (P<0.05). The adhesion rate of experimental group increased with shear stress before 0. 5×10-5 N/cm2 (P<0.05) and then decreased (P<0. 05). There was limited adherence of control groups to the UCA-IgG. The stess of half-maximal detachment was increased with increasing coverslips surface antibody concentrations (P<0.05). Conclusions UCA-IgG could adhere to mouse IgG in the physical conditions. It may provide strong supports for studying other targeted ultrasound contrast agent preliminary and fatherly in vitro.

Studies showed that low fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAPs) diet can improve the symptoms of gastrointestinal dysfunction of inflammatory bowel disease (IBD) patients, the mechanism may be related to decrease of secretion of intestinal liquid and production of gas.Specific carbohydrate diet and paleolithic diet may be suitable for IBD patients.This article reviewed the advances in study on effects of different diets on gastrointestinal dysfunction in patients with IBD.

Objective To evaluate the importance of plasma MicroRNAs in early diagnosis of acute myocardial infarction (AMI).Methods 24 patients with AMI as the test group and 20healthy volunteers as the control group were enrolled in this study.Plasma levels of microRNA-1,microRNA-133a,microRNA-208a and microRNA-499 were detected by quantitative real time polymerase chain reaction (qRT-PCR) at 3 h,6 h,12 h,24 h,48 h,72 h after the onset of AMI.Results Plasma microRNA-1 level was greatly increased and reached the peak at 3 h after AMI,then was decreased gradually to normal level at 72 h after AMI.Plasma microRNA-133a level was significantly elevated at 6 h after AMI,reached peak at 12 h after AMI,then was decreased to normal level at 48 h after AMI.Plasma microRNA-1 and microRNA-133a levels were correlated with cTnI expression.The peak time of microRNA-1 was earlier than that of cTnI,while the peak time of microRNA-133a was the same as that of cTnI.Conclusions Increased circulating microRNA-1 and microRNA-133a may serve as potential and novel biomarkers for early diagnosis of AMI.

Objective To explore the feasibility and efficacy of the selective portal vein embolization (SPVE) before radiofrequency ablation(RFA) for liver tumor large than 3 cm.Methods 63 patients with 63 liver tumor (＞3 cm) located in single liver segment completely or mostly underwent RFA.21 patients (21 lesions) were randomly assigned to receive SPVE before ablation (SPVE + RFA group),other 42 patients were treated with RFA only (RFA group).The complications and treat results of two groups were collected and compared.Results SPVE were achieved in 20 of 21 patients,and no critical complication were happened in both group.During a observation period of median 14.2 months,local tumor progression were observed in 17 of 42 patients (40.5％) in RFA group and in 3 of 20 patients (15.0％) in SPVE+ RFA group,there were significant difference between two groups(P =0.043).Conclusions SPVE can safely and effectively improve the efficacy of RFA for the liver tumors which large than 3 cm and located in single liver segment.

Purpose To investigate the value of low dose CT combined with iterative model reconstruction (IMR) technique for evaluation of both breast lesion and pulmonary metastasis in patients with breast cancer,and compare the effects of IMR,hybrid iterative reconstruction (HIR) and filtered back projection (FBP) techniques on image quality.Materials and Methods Twenty-one patients with solitary tumor confirmed by mammography and/or ultrasonography at Navy General Hospital from January to May in 2016 were enrolled,and the related breast imaging reporting and data system reached to level 4 and above.All patients underwent dynamic contrast-enhanced CT with different tube current for breast (scanning 6 times within 6 minutes) and chest scans;the conventional tube current (61 mAs) was used at the 2 minutes phase after injection,and the low tube current (10 mAs) was used at the other 5 phases.CT images were reconstructed with FBP,HIR and IMR techniques,respectively.The images of breast lesions and chest in 2 minutes scans were evaluated objectively and subjectively.Results The mean effective radiation dose was (2.15 ± 0.39) mSv.The images of 3 reconstruction techniques at the 2 minutes phase were compared,and the IMR images showed the lowest image noise and the optimal contrast to noise ratio (P＜0.05).The images quality of 3 kinds of reconstruction techniques was acceptable,of which IMR was better than HIR and FBP (P＜0.05).Conclusion Low dose CT scan combined with IMR technique can remain low radiation with dose of 2 mSv,while maintaining good image quality,which can be used for preoperative evaluation of both breast lesion and pulmonary metastasis in patients with breast cancer.

Objective To study the effect of heterozygous deficiency of SGT gene on the hematological and biochemical parameters of mice in young and elderly ages.Methods Blood samples were analyzed for complete hematological and biochemical parameters from heterozygous SGT-deficient and wild-type mice of 10-weeks and 6-months old mice, respectively.Results Age-related changes in most indexes were found statistically significantly different between young and elderly mice with the same genotype.Compared with the wild type at the same age, the platelet large cell ratio (P-LCR) was lower in young heterozygous SGT-deficient mice.However, platelet count, plateletcrit (PCT) and neutrophil count were more significantly lower in elderly heterozygous SGT-deficient mice (P<0.05).There was no significant difference for biochemical parameters ALT, AST, LDH, urea nitrogen, creatinine and blood glucose.Total and unconjugated bilirubin as well as ALP were significantly higher in elderly heterozygous SGT-deficient mice but not for conjugated bilirubin (P<0.05).In addition, significant differences existed for the lipids between two elderly groups (P<0.05).Conclusions Heterozygous deficiency of SGT gene induced changes of some hematological and biochemical parameters in elderly mice.It provides helpful information for further investigation on SGT involvement in some biological and pathological processes.

Objective:To investigate the clinical efficacy and prognosis of transjugular intrahepatic portosystemic shunt (TIPS) and drug combined with endoscopic treatment in patients with liver cirrhosis and esophagogastric variceal bleeding (EGVB).Methods:From January 2012 to December 2013, at the First Affiliated Hospital of Xi′an Jiaotong University, the data of 147 patients with liver cirrhosis and EGVB undergoing TIPS or drug combined with endoscopic treatment were retrospectively collected, with 87 cases in TIPS treatment group and 60 in drug combined with endoscopic treatment group.The 5 years follow-up data were analyzed, and the overall survival rates, rebleeding-free survival rates and hepatic encephalopathy-free survival rates at 6 weeks, 1 year, 2 years and 5 years after treatment of two groups were compared. Independent sample t test, Mann-Whitney U test, chi-square test, Fisher exact test, Z test, log-rank test and trend test were used for statistical analysis. Results:There were no significant differences in age, gender, etiology, Child-Pugh classification, initial liver function, coagulation function, liver ascites, previous history of hepatic encephalopathy, blood pressure and preoperative blood transfusion history between the TIPS treatment group and combination of drugs and endoscopy treatment group (all P>0.05). Forty-one patients died within 5 years, of which 20 (48.8%) died of rebleeding and 6 (14.6%) died of hepatic encephalopathy. There were no significant differences in 6-week, 1-year and 2-year overall survival rates between the TIPS group and drug combined with endoscopic treatment group (all P>0.05), however the 5-year overall survival rate of the TIPS treatment group was higher than that of the drug combined with endoscopic treatment group (78.4% vs. 63.2%), and the difference was statistically significant ( Z=2.06, P=0.048). The 6-week, 1-year, 2-year, 5-year rebleeding-free survival rates of the TIPS group were 97.7%, 96.5%, 88.9% and 70.9%, respectively, which were all higher than those of the drug combined with endoscopic treatment group (86.7%, 53.3%, 43.3% and 27.1%), and the differences were statistically significant ( Z=2.35, 6.39, 6.26 and 4.80, all P<0.05). There were no significant differences in hepatic encephalopathy-free survival rates at 6 weeks, 1 year and 2 years after treatment between the TIPS group and drug combined with endoscopic treatment group (all P>0.05), however the 5-year hepatic encephalopathy-free survival rate of the TIPS treatment group was lower than that of the drug combined with endoscopic treatment group (67.7% vs. 86.7%), and the difference was statistically significant ( Z=2.28, P=0.030). The lower the Child-Pugh classification, the higher the cumulative 5-year survival rate ( χ2=6.75, P<0.01). There was no statistically significant difference in the 5-year overall survival rate in patients with the same Child-Pugh classification between the TIPS group and the drug combined with endoscopic treatment group (all P>0.05). Conclusions:The efficacy of TIPS is better than that of the drug combined with endoscopic treatment in treating EGVB. Even the long-term risk of hepatic encephalopathy of TIPS is higher, the short-term, middle-term and long-term rebleeding rate are decreased. Patients with Child-Pugh grade C do not need to avoid TIPS when choosing the treatment, the earlier the TIPS used, the better survival benefit will be obtained.

Objective:To form the consensus of nursing experts in accelerated rehabilitation surgery in perioperative period of chronic rhinosinusitis in order to promote the standardized development of accelerated rehabilitation surgery nursing in perioperative period of chronic rhinosinusitis in China.Methods:By consulting the literature evidence and combining with the clinical practice experience, the consensus draft was formed by more than 5 nurses in charge of nursing. According to the Grading of Recommendations Assessment, Development and Evaluation System, (GRADE), the evidence quality and recommendation grade of each item were evaluated.Results:The consensus covered 4 aspects of pre-hospital care guidance, including preoperative care, postoperative care, and discharge care for chronic rhinosinusitis, with a total of 12 items, including health education, individualized treatment guidance, network platform use, adaptive training, diet management, activity guidance, pain management, and discharge follow-up.Conclusions:The content of this consensus covers all aspects of accelerated rehabilitation surgery nursing during perioperative period of chronic rhinosinusitis, which is scientific, rigorous and authoritative, and can provide reference and guidance for accelerated rehabilitation surgery nursing in the perioperative period of chronic rhinosinusitis.

Objective To investigate the expression of LncRNA TCONS_00003757 in papillary thyroid carcinoma ( PTC) , and to explore the effect of LncRNA TCONS_00003757 on the proliferation, migration, and invasion in TPC-1 cells. Methods Sixty cases of papillary thyroid carcinoma specimens and paired normal tissues were collected after surgery from October 2017 to March 2018 in the Tangshan Workers Hospital. Real-time PCR analysis was used to examine the expression level of LncRNA TCONS_00003757 in PTC tissues, and the association of LncRNA TCONS_00003757 expression levels with the clinicopathological data of patients was analyzed. The effects of LncRNA TCONS_00003757 and ST3GAL5 silencing on the proliferation, migration, and invasion in TPC-1 cells were assessed by MTT, scratch test, and transwell assay. Protein expression of ST3GAL5 was detected by Western blot after LncRNA TCONS_00003757 silencing. Results LncRNA TCONS_00003757 expression was increased in PTC tissues compared with that in normal tissues ( P<0. 05 ) , which was correlated with capsule invasion and lymph node metastasis( P<0.05) . LncRNA TCONS_00003757 expression in TPC-1 cells was higher than that in normal thyroid follicular epithelial Nthy-ori 3-1 cells(P<0.05). LncRNA TCONS_00003757 and ST3GAL5 silencing inhibited the proliferation, migration, and invasion of thyroid cancer TPC-1 cells, and ST3GAL5 expression was decreased after LncRNA TCONS_00003757 silencing (P<0.05). Conclusion LncRNA TCONS_00003757 expression in PTC is significantly increased and correlated with its occurrence and development. Silencing LncRNA TCONS_00003757 may inhibit the proliferation, migration, and invasion of thyroid papillary cancer cells via decreasing ST3GAL5 expression.

Objective The basic biological, echocardiography and gene sequencing parameters of mice overexpressing Slit2 gene (Slit2-Tg mice) were collected and evaluated, and to provide a reference for the application of Slit2-Tg mice in biomedical research. Methods Slit2-Tg and C57BL/6 J mice were inbred. The genotypes of the mice were determined by a PCR assay. The blood samples were collected for blood routine and biochemical tests. The tissues of main organs were collected for protein expression and pathological analysis. Echocardiography and transcriptome sequencing was carried out for analyzing the heart function and gene expression, respectively. Results The litter size was significantly higher in the Slit2-Tg mice than in C57BL/6 J mice. Human Slit2 gene and protein expressions were detected in the main organs of Slit2-Tg mice. Organ coefficient of spleen was significantly increased in Slit2-Tg mice, but the tissue structure appeared normal. There were significant changes in the counts of erythrocytes, platelets, eosinophils, and biochemistry of glucose, globulin, urea nitrogen, triglycerides, HDL, and atherosclerosis index. Echocardiography showed no significant differences in the morphology and function of the Slit2-Tg hearts except in the left ventricular anterior wall thickness at the end-diastolic state. Compared with the C57BL/6 J mice, 535 genes out of 17513 genes in the Slit2-Tg hearts were increased or decreased, mainly involving 15 biological process or signal transduction pathways. Conclusions This study has collected the biological parameters of Slit2-Tg mice and suggests that this model animal is suitable for the studies of cardiovascular diseases.