AIM To probe into antitumor effect of lymphocyte activated by superantigen SEC against glioma. METHODS Lymphocyte subset was analysed with APAAP method after the lymphocyte had been activated by SEC. The cytotoxicity of lymphocyte against glioma in vitro was evaluated by MTT method. With established animal model of glioma xenografted and immunity embeded model of HuPBL-SCID, we observed the growth of glioma. RESULTS The lymphocyte activated was mainly composed of CD4 + T lymphocyte. Lymphocyte activated by SEC had killing activety against 8 glioma cells and the group of 1?10 3 U?L -1 had shown the strongest killing power. The growth curve showed that:each of the rate of producing A, C and B group different suppress effect on glioma its suppress rate was 58.5%,46.2% and 36.3% respectively. CONCLUSION Lymphocyte stimulated by superantigen SEC produces killing power against glioma.

Objective:To observe the anti-glioma effects of lymphocyte activated by SEC in vivo and probe into therapy effects of SEC combing with operation,radiotherapy and chemotherapy.Methods:Experiment animals were SCID mice.With establishing animal model of glioma xenografted and immunity chimeric model of HuPBL-SCID,we observed the growth curve,survive time.With having operation,radiotherapy and chemotherapy,30 patients suffering from glioma were divided into control group,handle group 1 and 2,and then results were analyzed with MRI.Results:Growth curve shows:A,C and B group produced different suppress against glioma and its suppress rate were 58.5%,46.2% and 36.3%.The first death occurred at the 17th day in control group mice and all mice deaded at the 40th day.Contrasting to this,the first death occurred at the 40th day and 50% mice still were alive in group A until the day that experiment has just finished(60 day).Clinical material showed:The rate of effect(CR and PR) in control group was 40%,while the rate of effects was 50% in handle group 1 and 62.5% in handle group 2.Conclusion:SEC has extramaly potent anti-tumor activity against glioma.SEC combined with operation,radiatherapy and chemotherapy can raise treatment effect in patients with glioma.

Objective To explore the feasibility of using the modified continuous balloon dilatation substituting the traditional membrane-covered stent in the treatment of benign esophageal stenosis in children.Methods A retrospective analysis of the clinical data of 25 cases with esophageal stenosis from January,2012 to February,2014 was conducted.Preoperative esophageal stenosis was confirmed by angiography,and the expansion of the stenosis segment was examined after 2-4 weeks postoperatively.According to the age and the location of the esophageal stricture,25 cases were classified into two groups.Twelve cases of group A without obvious contraindications were treated by continuous balloon dilatation,while 13 cases of group B with age of less than 3 years or upper esophageal stenosis,retrievable stent implantation was performed.All cases were followed up from 6 months to 2 years.Clinical symptoms,swallowing fluency and the degree of esophageal stricture were followed up at 1,3,and 6 months postoperatively,and the effect of treatment was evaluated.Results Two groups of patients were successfully treated,and the stents were removed successfully after 2-4 weeks.The average diameter of the stenosiswas significantly increased after treatment,swallowing was improved obviously,with no perforation,hematemesis and melena and other serious complications.The balloon moved down happened in one case,which was adjusted under perspective observation.One case in group A underwent colonic interposition for esophageal replacement because of recurrence of restenosis.The balloon dilatation was effective in 10 cases.In Group B,5 patients had stent migration or displacement,3 cases had recurrent esophageal stricture,and the treatment was effective in 5 cases.There was significant difference in complications between the group A and B (x2=5.23,P＜0.05).Conelusions Continuous balloon dilatation is a simple,effective procedure with fewer complications in the treatment of children with benign esophageal stenosis.In addition to stenting,it may be another ideal choice for benign esophageal stenosis in children.

Objective To observe the effect of pigplacenta ins tead of Ziheche (P lacenta Hominis) for the treatment of senile dementia. Methods Seventy Kunming mice were divided into blank group, model group, pos itive control group, Zih eche low and high dosage groups, and pigplacenta low and high dosage grou ps, wi th 10 in each. The senile dementia models were established with the D-Galactose subcutaneous injection. The blank group was not administered any medicines. The model group was prescribed normal saline instead of the tested medicine; the pos itive control group was given Naofukang by gavage; the Zih eche low and high dosage groups were given 2g/kg and 4g/kg Ziheche respectivel y by gavage; while the pigplacenta low and high dosage groups were treated wi th p igplacenta 4g/kg and 8g/kg respectively by gavage. After treatment for 6 week s, the behavior experimental dark-avoiding test and step-down test were applied to test the effect of the medicines on the learning memory of mice, and acetylchol inesterase and monoamine levels in brain tissues. Results There was no s ignificant difference between the effect of pigplacenta and Ziheche in resi stin g senile dementia. In the latency of dark-avoiding test, the effect of high d osa ge of pigplacenta was significantly better than that of Ziheche (P

Objective: To explore the relationship of plasma apelin and angiotensin II (Ang II) with hypertension and hypertension caused early renal damage in order to provide the information for hypertension treatment. Methods: A total of 671 participants were enrolled in this cross-sectional community investigation. All participants were above 30 years of age with local residency longer than 5 years and were divided into 2 groups: Control group,n=354 non-hypertension subjects and Hypertension group,n=317 patients with essential hypertension. The levels of apelin, Ang II, urine creatinine and urinary albumin were examined. The relationship between blood pressure and the ratio of urinary albumin to urine creatinine (UACR) and the relationship between blood pressure and apelin, Ang II were studied by Pearson correlation analysis and multi linear regression analysis. Results: Compared with Control group, Hypertension group had the lower levels of apelin and higher UACR, both P<0.01. The mean arterial pressure (MAP) was negatively related to Ln (apelin), positively related to Ln (Ang II), bothP<0.01. With adjusted gender, age and blood lipids, the above relationship still existed. In Hypertension group, the patients combining with the early renal damage had the lower level of apelin and higher level of Ang II, bothP<0.01. The relevant analysis indicated that Ln (UACR) was negatively related to Ln (apelin), positively related to Ln (Ang II), bothP<0.01. With adjusted gender, age, MAP and blood lipids, the above relationship still existed. Conclusion: The patients with hypertension or hypertension caused early renal damage have decreased apelin. Apelin is negatively related to Ang II, therefore, apelin might be used as a target for hypertension treatment in clinical practice.

Objective To systematically review the clinical efficacy of sling exercise therapy(SET)on patients with chronic non-specif-ic low back pain (CNLBP). Methods Randomized controlled trials (RCT) about SET for CNLBP were electronically searched in CNKI, VIP,Wanfang Data,PubMed,Web of Science,The Cochrane Library and Embase from June,2007 to June,2017.After literatures screening, data extraction,quality evaluation and risk assessment,the results of meta-analysis were conducted by RevMan 5.3 software.Results Final-ly, 15 RCTs involving 789 patients were included. SET was better in improving Visual Analogue Scale (VAS) score (MD=-1.15, 95% CI[-1.41,-0.90],Z=8.82,P<0.00001)and Oswestry Low Back Pain Disability Index(ODI)score(MD=-1.29,95%CI[-1.80,-0.78],Z=4.94, P<0.00001) than physical therapy, and was better than other exercise therapies in improving the VAS score (MD=-0.94, 95% CI[-1.52,-0.37],Z=3.21,P=0.001)and ODI score(MD=-5.96,95%CI[-9.41,-2.51],Z=3.38,P=0.0007).However,no significant dif-ference was found in improving the NPRS score between SET and other exercise therapies(MD=0.35,95%CI[-0.23,0.93],Z=1.19,P=0.23),nor in improving VAS score between SET and traditional Chinese medical therapies(MD=-5.29,95%CI[-20.27,9.70],Z=0.69,P=0.49).Conclusion SET may play a role in relieving pain and functional limitations in patients with CNLBP.Due to the limited quantity and quality of the included studies,larger scale and high quality RCTs are needed to verify the aforementioned conclusion.

Objective To explore the preparation and quality control of As2 O3 nanoparticle .Methods PEG‐PLA was used as the vector material to prepare As2 O3 nanoparticle with ultrasonic emulsification method ,and the VEGFR‐2 was coupled to obtain VEGFR‐2/As2 O3‐PEG‐PLA nanoparticle .The particle size distribution ,Zata potential ,loading efficiency (LE) ,encapsulation effi‐ciency(EE) ,drug release in vitro and stability was determined ,and morphological characteristics was observed by transmission elec‐tron microscope(TEM) .Tweety‐four hepatocellular carcinoma nude mices were randomly divided into VEGFR‐2/As2O3‐PEG‐PLA nanoparticles group and As2 O3‐PEG‐PLA nanoparticles group ,by tail vein injection of nanoparticles .High performance liquid chro‐matography was used to determine content of As2 O3 .After 21 d ,six nude mices in each group were killed ,and the immunohisto‐chemistry and western blot method was used to detect the expression of VEGFR‐2 .Results The particle size of VEGFR‐2/As2 O3‐PEG‐PLA was determined to be (141 .9 ± 13 .2)nm ,Zata potential was (10 .2 ± 1 .1)mV .It was found to spherical or oval shape , with uniform size and dispersibility under TEM .LE and EE was (5 .51 ± 1 .83)% and (62 .12 ± 5 .98)% ,respectively .Drug release in vitro showed that VEGFR‐2/As2 O3‐PEG‐PLA exhibited controlled release effect ,with half of the release time as 10 h .Besides , VEGFR‐2/As2 O3‐PEG‐PLA showed a good stability in 3 days .Compared with As2 O3‐PEG‐PLA nanoparticles group ,the concen‐tration of As2 O3 in tumor and liver tissue was high ,the concentration of As2 O3 in blood ,heart ,kidney tissue was low ,the expression of VEGFR‐2 in tumor tissue was low in VEGFR‐2/As2O3‐PEG‐PLA nanoparticles group(P< 0 .05) .Conclusion The prepared As2 O3 nanoparticle using PEG‐PLA as vector and VEGFR‐2 as target showed uniform size ,high EE and LE ,good stability .And it preliminarily proved that VEGFR‐2 could be targeted in nude mice .

Objective To investigate the effect of fetal hemoglobin( HbF) in improving anemia of women who were β‐thalasse‐mia carriers at childbearing age .Methods 289 cases of women at childbearing age diagnosed as β‐thalassemia carriers in Shenzhen City were enrolled in this study .The high performance liquid chromatography (HPLC) was uesed for quantitative analysis of HbF , and the red blood cell parameters were detected by using the LH750 Automatic blood cell analyzer .The differences of red blood cell parameters between the HbF normal group and the HbF increased group were compared ,and the relationship between the high HbF expression rates and gene mutations were also analyzed .Results Comapred with the HbF normal group ,the hemoglobin (HGB) levels ,mean corpuscular volume (MCV) and the mean corpuscular hemoglobin (MCH) increased significantly ,while the red blood cell (RBC) count reduced ,there were significant differences between the two groups (P<0 .05) .No significant differ‐ences of the mean corpuscular hemoglobin concentration (MCHC) and RDW coefficient of variation (RDW‐CV) between the two groups were found(P>0 .05) .There were no significant differnces of rates of HBF high expression between different types of β‐globin gene mutations and the overall rate of HBF high expression (P>0 .05) .Conclusion Compared with the HbF normal group , anemia may improve more significantly in cases of women diagnosed as β‐thalassemia carriers at childbearing age in the HbF in‐creased group ,and there may be no relationship between gene mutations and high expression of HbF .

Objectives: To explore the relationship between vascular active peptide, apelin level and blood pressure in a coastal population of Fujian province.
Methods: A total of 1031 subjects with the mean age of (55.1 ± 10.9) years in a coastal area of Fujian province were included in this cross-sectional study, and 416 subjects with male gender. The questionnaire survey, physical examination and plasma level of apelin measurement were conducted. Based on JNC-7 deifnition of hypertension, the subjects were divided into 3 groups: ① Hypertension group, the patients with systolic blood pressure (SBP)≥140 mmHg and/or diastolic blood pressure (DBP)≥90 mmHg, n=496. ② Pre-hypertension group, SBP at (120-139) mmHg and/or DBP at (80-89) mmHg without medication, n=314.③Normal BP group, SBP<120mmHg and DBP<80mmHg without medication, n=221. Based on 4 quartiles of apelin levels, the subjects were further divided into 4 groups:Q1 group, apelin<164.8 ng/ml, n=258. Q2 group, apelin at (164.8-<220.0) ng/ml, n=258. Q3 group, apelin at (220.0-283.1) ng/ml, n=258. Q4 group, apelin>283.1 ng/ml, n=257. One way analysis of variance, covariance analysis and multivariate linear regression analysis were used to study the
relationship between apelin level and BP.
Results: The apelin level in male gender (220.57 ± 78.87) pg/ml was lower than female gender (232.06 ± 81.17) pg/ml. Compared with Normal group, Pre-hypertension group had decreased apelin level, compared with Normal and Pre-hypertension groups, Hypertension group had decreased apelin level, P<0.05. Compared with Q1 group, Q2, Q3 groups presented decreased SBP, DBP and mean arterial blood pressure (MABP), and compared with other 3 groups, Q4 group had decreased SBP, DBP (not including Q2, Q3 groups) and MABP, P<0.05. With adjusted age and gender, SBP, DBP and MABP were signiifcantly different among 4 quartiles of apelin groups, P<0.05. Multivariate linear regression analysis indicated that SBP, DBP and MABP were negatively related to apelin level, such relationship remained the same after adjusting the other cardiovascular risk factors.
Conclusion: Apelin level dropping accompanying with BP increasing implies that vascular active peptide, apelin involved in BP regulation.

Objective Cerebral microbleeds (CMBs) are important indicators of cerebral small vessel disease .However, it is still unclear whether endothelial dysfunction is involved in CMBs .The aim of this study is to investigate the correlation between CMBs and soluble E-selectin (sE-selectin) in patients with acute ischemic stroke . Methods Based on the results of MRI (3.0 T) susceptibility weighted imaging , we divided patients with first acute ischemic stroke into a CMBs group ( n=63 ) and a non-CMBs group (n=63), and recruited another 45 volunteers with normal MRI findings as controls .We collected and conducted comparative a-nalysis on the demographic data , biochemical variables ( including the sE-selectin level ) , vascular risk factors , and the number of CMBs of the patients . Results Ordinal logistic regression analysis showed a significantly positive correlation between sE -selectin and the number of CMBs (OR=1.062, 95%CI:1.023-1.103, P=0.002), higher systolic blood pressure associated with more CMBs (OR=1.014, 95%CI:1.002-1.025, P=0.021). Conclusion Serum sE-selectin is significantly positively correlated with and can be used as a biological marker for the severity of CMBs .