With the wide application of electronic data management (EDC), the data management is shifting to a new mode. In order to recognize the advantages of EDC, we choose 20 representative registered clinical trials, which involve 5 404 subjects and 321 sites. We found that EDC has many beneficial impacts on the course of clinical trial data management, including the process of data collection, data cleaning, data quality control and clinical trial decision-making. The result also provides a reference for the adoption of EDC in clinical trials.

Objective:To observe the clinical effect of warm needling moxibustion for knee osteoarthritis (KOA) by a randomized controlled trial.
Methods: Sixty cases with KOA were randomly divided into an observation group and a control group, 30 cases in each group. The observation group was treated by warm needling moxibustion. The control group was treated by simple acupuncture. Ten sessions made one course and the two groups were treated for two courses. The scores of knee joint pain, stiffness and knee functions before and after the treatment were observed.
Results: The scores of Western Ontario and McMaster Universities osteoarthritis index (WOMAC) on pain, stiffness and joint functions before and after treatment in both groups were statistically different (all P<0.05). The comparisons of the scores in pain, stiffness and joint function after treatment between the two groups were all statistically different (all P<0.05). The total effective rate was 93.3%in the observation group and 80.0%in the control group. The differences of the clinical effects between the two groups were statistically significant (P<0.05).
Conclusion: Warm needling moxibustion can improve the clinical symptoms and functions of the patients with KOA, and is better than ordinary acupuncture in the therapeutic effect.

Objective To investigate the cytotoxicity of silica nanoparticles on vascular endothelial cells, and to clarify its action mechanism.Methods The 60 nm silica nanoparticle was selected and the invitro cultured human umbilical vein endothelial cells (HUVECs)were used as cell model.The HUVECs were divided into control and silica nanoparticle exposure groups with concentrations of 12.5,25.0,and 100.00 mg·L-1 .MTT assay was used for the determination of cell viability,lactate dehydrogenase (LDH)release assay for membrane integrity,flow cytometry (FCM)for intracellular reactive oxygen species (ROS)content,and real-time PCR assay for intracellular NF-E2-related factor 2 (Nrf2 ), heme oxygenase-1 (HO-1 ), superoxide dismutase 2 (SOD2 ) and glutamate-cysteine ligase catalytic subunit (GCLC)mRNA levels.Results The MTT results showed that the cell viabilities in each silica nnaoparticle exposure group were decreased compared with control group in a dose-dependent manner. Upon the silica nanoparticle exposure for 12 h,the cell viability was declined significantly only in 100 mg·L-1 exposure group compared with control group (P<0.05).When exposured for 24 h,the cell viabilities in 25.0, 50.0,and 100.0 mg·L-1 exposure groups were declined significantly compared with control group (P<0.05). Under the exposure to silica nanoparticle with the same dose, the cell viabilities were decreased along with the elongation of exposure time.LDH assay and FCM showed that except for that in 12.5 mg·L-1 exposure group, both the LDH activities in media and intracellular ROS levels in other exposure groups were increased compared with control group (P<0.05 ). The results of real-time fluorescence PCR showed that the mRNA levels of Nrf2, HO-1,SOD2 and GCLC in 100 mg·L-1 silica nanoparticle exposure group were increased significantly compared with control group (P<0.05).Conclusion Silica nanoparticles have toxicity to vascular endothelial cells,which includes reducing cell viability,membrane integrity destruction,induction of ROS generation,and tranSCriptional regulation of redox-related factors. Oxidative damage is one of the mechanisms of vascular endothelial toxicity mediated by silica nanoparticles.

Objective:To investigate the roles of S100B protein and anti-brain antibody (ABAb) in the pathophysiology of Alzheimer's disease (AD) by analyzing the changes of the serum levels of S100B and ABAb and the relationships of the measures with cognition deficits in patients with AD.Methods:In this study,32 patients with AD(AD group) and 40 age-matched volunteers without cognitive impairment(control group) were enrolled.The diagnosis was made according to the Diagnostic and Statistical Manual of Mental Disorders,Fourth Edition (DSM-Ⅳ).The mental and social functional conditions were assessed with the Mini-Mental State Examination (MMSE) and Activity of Daily Living Scale(ADL),the cognitive function of patients was evaluated with the Alzheimer's Disease Assessment Scale-cognitive subscale(ADAS-Cog).The serum S100B proteinand ABAb levels were examined by enzyme-linked immuno sorbent assay(ELISA).Results:The serum S100B protein[(0.66 ± 0.17) μg/L vs.(0.30 ± 0.04)μg/L] and ABAb [(1.93 ± 0.95) U/L vs.(1.31 ± 0.25) U/L] levels were higher in AD patients than in the controls (Ps ＜ 0.01).In AD patients,the serum S 100B protein markedly negatively correlated with the scores of the MMSE(r =-0.66),while positively correlated with ADL and ADAS-Cog(r =0.57,r =0.53)(Ps ＜ 0.005).ABAb levels negatively correlated with the scores of the MMSE(r =-0.57),while positively correlated with ADL and ADAS-Cog(r =0.52,r =0.34)(Ps ＜0.05).The serum S100B protein levels were positively related to ABAb levels in AD group(r =0.51.P ＜0.005),but not in control group(r =0.076,P =0.654).Conclusions:It suggests that the serum levels of S100B protein and ABAb are related with cognitive function in patients with Alzheimer's disease,and S100B protein and ABAb might play key roles in mechanism of Alzheimer's disease.

Objective To Btudy effect of standardized acupuncture combined with rehabilitation therapy (function training)on improvement of comprehensive function among patients with stroke in communities,Changning District of Shanghai.Methods One hundred and seventy-six stroke patients were divided into rehabilitation therapy group(88 cases)and control group(88 cages)with block randomization.Patients in rehabilitation therapy group were treated with standardized acupuncture combined with function training in addition to regular medical treatment,and patients in control group regular medical treatment only.All the patients were evaluated with functional comprehensive assessment(FCA)scale by the end of 2-and 5-month of treatment,respectively.Results By the end of 5-month of treatment,scores of FCA in both groups increased significantly (P＜0.01),as compared to those before treatment,more in rehabilitation therapy group than that in control group(P＜0.05).Conclusions Effect of standardized acupuncture combined with rehabilitation therapy Can obviously improve their comprehensive function among stroke patients in communities.

Objective To investigate dose characteristics of megavoltage cone-beam CT in the low MU and rotation way for imaging,and to improve the quality assuraflce. Methods Dose linearity,a parameter describing beam characteristics,was measured for different numbers of MUs on megavoltage conebeam CT accelerator.Dose stability was measured 5 times using exposure of 7 MUs,which was repeated another 5 times 6 hours after. Results Dose linearity was good using exposure between 5 and 20 MUs.The average dose among the first and second 5 measurements was(5.74±0.01)Gy and(5.76±0.01)Gy while exposure of the accelerator was 7 MU.The difference between the two doses was 0.41%. he dose was stability while megavoltage cone-beam CT image was in the low MU and rotation way. Conclusion Dose characteristics of megavoltage cone-beam CT in the low MU and rotation way for imaging can qualify clinically application.

Background:1 α,25-dihydroxyvitamin D3 [1,25 (OH) 2 D3],the active form of vitamin D,is reported in some studies having antifibrotic potential in liver fibrosis,however,its mechanism is not fully clarified.MicroRNAs (miRNAs) have recently been shown could regulate the proliferation and activation of hepatic stellate cells (HSCs),and are involved in the promotion or inhibition of liver fibrosis.Aims:To explore whether the inhibiting effect of 1,25 (OH) 2 D3 on activation of HSCs is by regulating miRNAs expression.Methods:Literature review and qPCR method were used to screen out the differentially expressed miRNAs between transforming growth factor-β1 (TGF-β1)-stimulated (activated) HSCs and the inactivated HSCs.Then the HSCs were co-cultured with TGF-β1 and the mimic of differentially expressed miRNA,the negative control mimic,1,25(OH)2D3 and DMSO,respectively,and the cell viability and apoptosis were determined by CCK-8 assay and flow cytometry.Results:Expression of miR-146a was down-regulated in activated HSCs (P ＜ 0.05).Compared with HSCs in DMSO group,the expression of miR-146a was significantly up-regulated in HSCs treated with 1,25 (OH) 2 D3;meanwhile,the cell viability was decreased and the apoptosis was increased (P all ＜ 0.05).In HSCs transfected with miR-146a mimic,the expression of miR-146a was up-regulated,the cell viability was decreased,and the apoptosis was increased similarly with HSCs in 1,25 (OH)2D3 group (P all ＜ 0.05).Conclusions:Regulation of miR-146a expression might be one of the important mechanisms of 1,25 (OH) 2 D3 in inhibiting TGF-β1-stimulated HSC activation and inducing apoptosis in HSCs.

Objective To construct recombinant non-secretory pMG36e-TSOL18/L.lactis and secretory pMG36e-SP-TSOL18/L.lactis vaccines of Taenia solium. Methods Taking sequence of Taenia solium TSOL18 gene as template, genetic optimization was carried out using lactic acid bacteria as a host system, TSOL18 gene and SP-TSOL18 gene were synthesized using PCR-based accurate synthesis (PAS), through the design of full-length primers, the addition of restriction enzyme cutting sites Sac Ⅰ and Hind Ⅲ and protective bases, and the SPUSP45 secretory signal peptide sequence in the N terminal. TSOL18 gene and SP-TSOL18 gene were cloned into Escherichia coli-L.lactis shuttle expression plasmid pMG36e to construct intracellular expression vector pMG36e-TSOL18 and secreted expression vector pMG36e-SP-TSOL18. The two recombinant plasmids were identified by enzyme digestion and sequencing, and electroporated into L.lactis MG1363 to construct the recombinant pMG36e-TSOL18/L.lactis and pMG36e-SP-TSOL18/L.lactis vaccines of Taenia solium, and they were identified by PCR. Results TSOL18 gene fragment and pMG36e vector fragment were obtained by double digestion with Sac Ⅰ and Hind Ⅲ, which were consistent with the expected results; TSOL18 gene standard sequence was aligned and the matching degree was 100％, and both were inserted into Sac Ⅰ and Hind Ⅲ of pMG36e vector. Our PCR results showed that both recombinant pMG36e-TSOL18/L.lactis and pMG36e-SP-TSOL18/L.lactis were 393 bp gene fragment products. Conclusion The recombinant pMG36e-TSOL18/L.lactis and pMG36e-SP-TSOL18/L.lactis vaccines of Taenia solium are successfully constructed.

This paper presented a design of broadly all solid-state tunable pulsed Ti:sapphire laser with high power and stable performance. The laser was pumped by custom-made Nd:YAG laser which had water cooling system and amplified by two stage amplifier. The method accomplished tunable output of all solid-state tunable pulsed Ti:sapphire laser by modifying the reflection angle of the back mirror. We investigated the relationship between the power of the pumping laser and the all solid-state tunable pulsed Ti: sapphire laser by changing the power of the pumping source.
Aluminum Oxide ; Equipment Design ; Laser Therapy ; instrumentation ; Lasers, Solid-State ; Titanium

Objective To investigate the expression of miRNA (miR-21) in mucosa-associated lymphoid tissue(MALT) lymphomas and its relationship with the effects in CHOP regimen. Methods Lymph gland tissues and preoperative peripheral blood of 52 patients pathologically diagnosed with MALT lymphoma in Department of Hematology of Affiliated Hospital of Hebei University of Engineering from January 2015 to December 2017 were collected; meanwhile, 10 tissues from patients with lymphadenitis and 20 peripheral serum from healthy examination patients were also collected. Quantitative real-time polymerase chain reaction (qPCR) was used to compare the lymph gland tissues in MALT lymphoma patients and lymphadenitis patients, and the expression of miR-21 in peripheral serum of MALT lymphoma and healthy people. The selected 20 cases of MALT lymphoma were given CHOP regimen treatment for 6 cycles, and then the efficiency and inefficiency were compared; at the same time, the expression of miR-21 in peripheral serum of the patients in the effective group was detected. Results The relative expression of miR-21 of lymph node tissues in lymphadenitis patients and MALT lymphoma patients was 1.03±0.12 and 4.53±0.73 respectively, and the relative expression of miR-21 in preoperative peripheral serum of healthy people and MALT lymphoma patients was 0.83±0.04 and 3 . 87 ± 0 . 21 respectively , and the differences were statistically significant (P ＝ 0.047, P ＝ 0.044). After 6 cycles of CHOP regimen, the total effect rate of MALT lymphoma was 70 % (14/20), and the relative expression of miR-21 in preoperative and postoperative peripheral serum for the patients who obtained the effective results after CHOP regimen was 3.95 ±0.08 and 1.62 ±0.41, and the differences were statistically significant (P＝ 0.035). Conclusions The expression of miR-21 has a certain correlation with the occurrence and development of MALT lymphoma. Furthermore, the serum miR-21 expression may be related to the effect of CHOP regimen chemotherapy in MALT lymphoma.