Objective To prepare biodegradable microspheres of Schistosoma japonicum recombinant glutathione-S-transferase. Methods By using the constructed expression plasmid pET28a(+)-SjGST, fusion protein of Schistosoma japonicum recombinant glutathione-S-transferases were expressed in LB by E.coli BL21,rSjGST fusion protein was purified through column of resin,and then the fusion protein concentration was detected; by using an oil-in-oil emulsion-solvent extraction method, the rSjGST biodegradable microspheres were prepared in PLGA (75/25).The properties of microspheres including shape、diameter、diameter’s distribution and span were assayed under microscope. Results The concentration of protein after purification was 8.323 mg/ml, and the microspheres were spherical and showed normal distribution.The diameter was (7.3?1.2) ?m,the span was 0.52,the load of the rSjGST was 7.62%. Conclusion Biodegradable microspheres of Schistosoma japonicum recombinant glutathione-S-transferase are successfully prepared, which provides the basis for further studies on protective immunity of mice.

Objective To detect the dynamic changes of antibody and cytokines in the serum induced by single vaccine delivery system (SVDS) of biodegradable microspheres of recombinant glutathione-S-transferase from Schistosoma japonicum (rSjGST) in mice. Methods By using the constructed expression plasmid pET28a(+)-SjGST, rSjGST was expressed by E.coli BL21. After purified through the column of resin,the biodegradable microspheres of rSjGST were prepared with PLGA (Poly lactic-co-glycolic acid, PLGA 75/25).Six-week BALB/c female mice were immunized subcutaneously with a single vaccine, and the blood was collected from eyes on the 6th, 9th, 12th, 15 th, 18th, 21th week respectively. The dynamic levels of serum specific antibody IgG, IL-2 and IFN-? were detected. Results Compared with the control group, there was a significant difference of serum specific antibody IgG of every immune group (P

Objective To stuay the serum levels of sCD40L,hsCRP,ICAM-1 and VCAM-1,and the expression of CD40L of the CD4+T cells in patients withacute coronary syndrome(ACS),and to explore the relationship between CD40L and inflammatory factors and the effects of CD40/CD40L on ACS.Method Thirty-two coronary heart disease patients without history of other discernible systemic disease and medicine of steroids or immunosuppressants taken were divided into acute myocardial infarction group(AMI,n=11),unstable angina pectoris group(USP,n=14)and stable angina pectoris group(SAP,n=7).The control group was composed of eight healthy volunteers(CON group).Theexpression of CD40L Was determined by flow cytometry(FCM).Serum sCD40L.ICAM-1 and VCAM-1 were determined by using ELISA.The serum hsCRP was assayed by using immunoturbidimetry.Data were analyzed with SPSS 11.0 software for windows.Results The expression percentage(%)of CD40L of the CD4+T cells,and the serum levels of sCD40L,hsCRP,ICAM-1 and VCAM-1were sifnificantly higher in patients of AMI group than those in patients of other groups(P＜0.05 or P＜0.01).Similarly,those biomarkers in patients of UAP group were usually higher than those in patients of CON or SAP groups(P＜0.05).There Was a positive correlation between the expression of CD40L and the serum level of VCAM-1 in paients of AMI group(P＜0.05),and likewise,a positive correlation also existed between the serum level of sCD40L and other factors,hsCRP,ICAM-1 as well as VCAM-1,in patients of AMI group(P＜0.05).Conclusions The enhanced expression of CD40L of the CD4+T cells and high serum level of sCD40L are present in patients with acute coronary syndrome.The hsCRP,ICAM-1 and VCAM-1 play roles in the pathogenesis of ACS,and they have correlation with enhanced expression of CD40L and high serum level of sCD40L.Therefore,CD40L and sCD40L may be used as indicators of risk in coronary heart disease.

Objective To make students at different levels not only learn theoretical knowledge of acupuncture-moxibustion manipulation skills but also achieve full operating training, strengthen the combination of theory and practice and improve the teaching quality of clinical disciplines by applyingmultimedia-subject participationteaching method to acupuncture-moxibustion manipulation techniques in the experimental teaching of acupuncture and moxibustion. Method The students were randomized, according to grade, into experiment (n=114) and control (n=115) groups. The teaching content was the same in the two groups. The experiment group received multimedia-subject participationteaching method. After the multimedia teaching, the students did an independent demonstration and made a self-evaluation, the teachers made a comment and the students did independent practice again in groups. The control group received conventional theory teaching and did practice under demonstration in the experimental lesson. The examination and questionnaire were used as assessment indicators to evaluate the effect ofmultimedia-subject participationteaching method applied to acupuncture-moxibustion technique teaching. Result Statistical analysis was made using the SPSS11.5 statistical software package. The independent samples t-test is used for a between-groups comparison. The statistical result showed that satisfaction was 100%in the experiment group and 75.7%in the control group;there was a statistically significant difference between the two groups (P<0.05). Conclusion Multimedia-subject participationteaching method is an innovation in acupuncture-moxibustion technique teaching and helps the students to better master acupuncture-moxibustion manipulation skills. Mastery of theoretical knowledge before real practice is the key to proficient manipulation. The combination of the two in classroom teaching yields twice the result with half the effort. Carrying out multimedia-subject participation teaching method will help to further deepen the teaching reform and to improve the level and quality of“Acupuncture and Moxibustion”teaching.

Aim To investigate the effect of resveratrol on astrocyte activation after cerebral ischemia/reperfusion injury in rats.Methods 45 male Sprague-Dawley rats were divided into sham,control and resveratrol groups, 15 rats in each group.Resveratrol or solvent was intra-peritoneally perfused into the rats for 7 consecutive days after 3h for MCA I /R.Cerebral infarction volume with TTC,neurological function score with Longa score, and pathological change with HE staining,the protein expressions of Caspase-3 with immunohistochemistry at 24h after MCA I /R were examined.The protein ex-pressions of GFAP and NeuN in penumbra were detec-ted with immunohistochemistry and immunofluores-cence at 14d after MCA I /R.Results Resveratrol treatment significantly improved the neurological func-tion score,decreased the infarct volume,reduced neu-ron loss,and inhibited the activation and proliferation of astrocytes,compared with the control group.Con-clusion Resveratrol can inhibit the excessive activa-tion of astrocytes,protect neurons in penumbra and im-prove neurological function.

Objective To observe the changes of VEGF and Ang-2 expression in streptozotocin(STZ)-induced diabetic rat retina after insulin therapy and explore possible roles of insulin in the development of diabetic retinopathy. Methods Diabetes was induced in 8-week-old male wistar rats by a single intraperitoneal injection of STZ. After three weeks,animals were randomly divided into four groups:(1)diabetic rats received intensive insulin therapy for 20 days;(2)diabetic rats received unregular insulin therapy,which caused the abrupt fluctuation of glycemic level;(3)diabetic control rats; and (4)normal control rats. After treatment,the animals were sacrificed with an overdose of anesthesia,and the eyes were enucleated and fixed in 4% paraformaldehyde immediately. Paraffin sections of retina were prepared.Expression of VEGF and Ang-2 was assessed by immunofluorescence stain and images analysis. Results Quantitative analysis showed VEGF and Ang-2 protein expression was increased by 2.38-fold and 2.41-fold in diabetic rats retinas as compared to non-diabetic rats retinas respectively (P0.05). Conclusion Intensive insulin therapy could decrease VEGF and Ang-2 expression in retina and has protective effect on diabetic retinopathy in STZ-diabetic rats.

Objective To explore the effect of psychological intervention on first episode schizophrenia in quality of life and social function.Methods 120 inpatients with first episode schizophrenia were randomly divided into the observed group (60 cases) in which patients were treated with risperidone plus psychological intervention and the control group (60 cases) in which patients were treated with risperidone only. All patients had been treated for 8 weeks and followed up for 6 months after discharge. The assessments included the Positive and Negative Symptoms Scale(PANSS), WHO, QOL-100 and Social Disability Screening Schedule(SDSS) before the treatment and at the end of the follow-up.Results The scores of PANSS, SDSS and QOL-100 in both groups did not show significant difference before the treatment(P>0.05). At the end of follow-up, the total score, negative score and positive score of PANSS in the observed group were lower than that in the control group(P<0.01), while the total score of QOL-100, areas of mentality, dependence, social relation factor scores and the scores of SDSS in the observed group were higher than that in the control group(P<0.05 or P<0.01). Conclusion Psychological intervention can help to improve the symptom of first episode schizophrenia and enhance their quality of life and social function.

Objective:To investigate the correlations between CO-029 expression and cholangiocarcinoma invasion and metastasis, and the further explore the potential mechanism involved.Methods:The constructed lentiviral vector of vshRNA-CO-029 (LV/GFP/CO-029) was used to transfect and screen the stable transfected cholangiocarcinoma cell line HCCC-9810-vshRNA-CO-029 as the silence group, HCCC-9810 cells transfected with the mock plasmid were used as the mock group, and the untransfected cells were used as the control group. Cell scratch assay, Transwell assay and in vivo implantation assay were used to detect the migration, invasion and metastasis of the three groups of cells. Immunoprecipitation and tumor necrosis factor (TNF)-α stimulation assay were used to detect the effect of CO-029 on the expression of EMT-related genes.Results:The scratch healing rate of the silence group was (27.11±4.58)%, which was lower than that in mock group (92.84±6.24)%, the number of cells passing through Matrigel in silence group was (57.15±6.10), which was significantly lower than that in mock group (108.20±9.21) and control group (112.00±10.45), the differences were statistically significant ( all P<0.01). The volume of liver tumors in the silence group of orthotopic xenograft mouse model was (2.17±0.54) cm 3, while the volume of liver tumors in the transplanted simulation group was (0.74±0.15) cm 3, the differences were statistically significant ( P<0.05). The incidence of lung metastasis and the number of lung metastases in the simulated group was 100%(6/6) and (214.17±35.64), respectively, while that in the silence group was 16.7% (1/6) and (41.56±14.15), respectively, the differences were statistically significant (all P<0.05). Co-immunoprecipitation showed that CO-029 can form a complex with TNF-αR1. TNF-α induced the down-regulation of E-cadherin and up-regulation of vimentin and N-cadherin in the mock group, but no significant changes were observed in the silence group. Conclusion:CO-029 expression is positively correlated with tumor invasion and metastasis of cholangiocarcinoma, and could couple with TNF-α to induce EMT, which is a novel well-established potential prognostic and therapeutic target for cholangiocarcinoma metastasis and prognosis intervention.

Objective:To investigate the expressions and clinical significance of tetraspanin CO-029 and integrin αv in intrahepatic cholangiocarcinoma (ICC ).Methods:Tissue microarray (TMA) was used to detect the expression of CO-029 and αv in 254 cases of intrahepatic cholangiocarcinoma. The relationship between the two factors and clinicopathological features, recurrence, metastasis and prognosis was analyzed.Spearman method was used to analyze their correlation.Relationship between αv and CO-029 was studied by mass spectrometry and database search,immunoprecipitation and Western blot were used to detect the coexistence.Results:Tissue microarray analysis showed that the positive expression rate of CO-029 was 51.6% (131/254), and the positive expression rate of αv was 61.4% (156/254). The expression of CO-029 and αv were closely correlated with tumor envelope, size, number and TNM stage ( P<0.05). According to the time of recurrence (TTR), the expressions of CO-029 and αv in early postoperative recurrence group (TTR <1 year) were significantly higher than those in non recurrence group (TTR ≥ 1 year). The patients with high CO-029 expression were more likely to relapse ( HR=2.01, 95% CI=1.45-2.79; P<0.001) and had shorter survival time ( HR=2.03, 95% CI=1.46-2.81; P<0.001). The patients with high expression of αv had shorter recurrence time ( HR=1.85, 95% CI=1.38-2.47; P<0.001) and shorter survival time ( HR=1.95, 95% CI=1.40-2.71; P<0.001). Co immunoprecipitation and Western blot confirmed that αv and CO-029 formed a complex. There was a positive correlation between CO-029 and αv in intrahepatic cholangiocarcinoma ( r=0.401, P<0.01). Conclusions:The differential expression of CO-029 and αv were closely related to the recurrence, metastasis and prognosis of intrahepatic cholangiocarcinoma, and CO-029 may couple with αv to form a complex to promote the invasion and metastasis of intrahepatic cholangiocarcinoma.

Objective:To explore the feasibility and prognosis of prenatal ultrasonic diagnosis of fetal isolated vascular ring at 11-13 + 6 weeks. Methods:A total of 36 996 fetuses were selected to compare the results of ultrasound screening at 11-13 + 6 weeks and 20-24 weeks of pregnancy in Guangxi Maternity & Child Healthcare Hospital from January 2016 to January 2020, the reasons for missed diagnosis and misdiagnosis of fetal isolated vascular ring by ultrasonography in the first trimester were summarized. Results:Thirty-five cases were diagnosed as isolated vascular ring in the first trimester, including 19 cases right aortic arch combined with aberrant left subclavian artery with "U-shaped" vascular ring, 7 cases double aortic arch with "O-shaped" vascular ring, and 9 cases aberrant right subclavian artery with "C-shaped" vascular ring. While 155 cases were diagnosed as isolated vascular ring at 20-24 weeks of pregnancy, consisting of 18 cases of combined with aberrant left subclavian artery, 9 cases of double aortic arch, 126 cases of aberrant right subclavian artery and 2 cases of pulmonary artery sling, the diagnosis coincidence rates were 94.74%, 77.78%, 7.14%, 0(Kappa value were 0.97, 0.88, 0.13, 0). For the diagnosis of right aortic arch combined with aberrant left subclavian artery, double aortic arch and aberrant right subclavian artery in the first trimester, the specificities were 99.99%, 100%, 100%, the sensitivities were 100%, 77.78%, 7.14%, the false-positive rates were 0.01%, 0, 0, the false-negative rates were 0, 22.22%, 92.86%, and the Youden′s indices were 0.99, 0.78, 0.07.Conclusions:Right aortic arch combined with aberrant left subclavian artery and double aortic arch have high coincidence rate by ultrasonography in the first trimester, while the diagnostic coincidence rate of isolated aberrant right subclavian artery was low. Ultrasound screening for isolated vascular ring in the first trimester still needs ultrasound examination in the second trimester to exclude the minor cardiac malformations that are difficult to diagnose in the first trimester.