Objective To compare clinical outcome and adverse reactions between the regimens SOX and XELOX for chemotherapy of advanced gastric carcinoma in Chinese population.Methods The original articles on randomized controlled trials ( RCTs) comparing the chemotherapy of SOX and XELOX in Chinese patients with advanced gastric carcinoma were recruited from the PUBMED, WANFANG, VIP and CNKI databases.The quality of the selected trials were assessed by JADAD method.Meta-analysis about the efficacy and safety of the two chemotherapy methods was performed by Rev Man 5.2.0 software ( Cochrane-information Management System) .Results Eight RCT studies were recruited in our work, including 293 patients in the SOX treatment group and 310 in the XELOX treatment group.The analysis results showed that there was no significant difference in the effect of the two chemotherapy methods (OR=1.19, 95%CI:0.86-1.64,P=0.29), and referred to the safety evaluation, the stomatitis (OR=2.29, 95%CI:1.74-4.89, P<0.0001) incidence in SOX treatment group was higher than XELOX treatment group, and in total, there was no significant difference in adverse reaction incidence of the two chemotherapy methods(OR =0.88, 95%CI: 0.66-1.19, P =0.41).Conclusion In the chemotherapy of advanced gastric carcinoma in Chinese population, there is no significant difference in clinical response rate between SOX and XELOX, and the stomatitis incidence of SOX is significantly higher than that of XELOX.

Objective To evaluate the efficacy of less invasive stabilization systems (LISS) fixation and double plating on the treatment of AO-type C3 distal femoral fractures via anterior midline approach.Methods From June 2014 to March 2017,18 cases of AO-type C3 distal femoral fractures treated in our department were recruited in this study.They were 12 males and 6 females,at a mean age of 19-62 years.There were 11 cases due to traffic accidents and 7 due to falls from heights.Six of them had open fractures and 12 had closed fractures.They all were treated with LISS fixation and double plating with anterior midline incision.Kolment and Wulff criteria were used to evaluate knee joint function after internal fixation at the last time of follow-up.Results For all the subjects,the average operative time was 145 (110 to 200) min,and they were followed up for 17.5 (12 to 25) months.They all achieved primary wound healing,and had an average time of 22 (20 to 26) weeks for fracture healing.No nonunion,infection,osteomyelitis or injuries of nerves and arteries were observed.According to the results of Kolment and Wulff criteria for knee joint function evaluation,6 of them got excellent,9 good,2 fair and 1 poor outcomes,with a rate of 83.33％ for good and excellent outcomes.Conclusion The treatment of type C3 distal femoral fractures via anterior middle approach of knee joint can fully reveal the articular surface of the femoral condyle.And the operative vision is clear,making it easy for anatomical reduction of articular surface fractures.Combined with LISS double locking plates fixation treatment,it can avoid the injury of soft tissue,and the fracture also be rigid fixation.Postoperative early functional exercise should be allowed to obtain good clinical results.

Objective To investigate the binding protein of chlamydiaphage phiCPG1 capsid protein Vp1 on chlamydia trachomatis outer membrane.Methods The bacterium with recombinant plasmid Vp1/pet30a( + ) was induced.The expressed protein was purified by gel recycling.FarWestern blot was utilized to' investigate the binding protein of Vp1 on chlamydial outer membrane,including recombinant polymorphic outer membrane protein (rPmp) and major outer membrane protein (MOMP).Results The recombinant protein Vp1 was successfully expressed in E.coli.Monoclonal antibody against Vp1 was used as primary antibody in Western blot,and no specific band was present,which indicated that the monoclonal antibody did not specifically bind with any rPmp.Far-Western blot results showed that there was an obvious band for the rPmpI,but no specific band for other rPmp and MOMP,which suggested that Vp1 could specifically bind with rPmpI protein on the chlamydial outer membrane of serotype D.Conclusions There is a binding site of Vp1 on the chlamydia trachomatis outer membrane.Vp1 may play an important role in the interaction between the chlamydiaphage and the chlamydiae.

Objective To identify the important regulatory elements in the promoter of human CD2 associated protein(CD2AP) by conserved sequence analysis among different species and luciferase functional detection. Methods The promoter sequences of CD2AP from different species were analyzed by BLAST. Plasmids containing different length of deletion mutations of human CD2AP promoter were constructed. Pro-moter activities were tested in 3 kinds of cells from different species by luciferase analysis and were tested in HEK-293 cells treated with all-trans-retinoic acid. Results Homologous sequence comparison in CD2AP promoter area among human, cattle and pig showed that putative specific protein 1 (Sp1) sites and down-stream promoter element (DPE) were highly evolutional]y conserved. Progressive deletion luciferase analysis of DNA fragments revealed similar promoter activity style among 3 different cell lines from 3 different spe-cies, HEK-293, BHK-21 and Vero cells. One basic promoter activity located within 500 bp upstream of ATG. Fragments of further upstream 100 bp or more had drastically 10 times increased promoter activity. Two putative Sp1 sites were in this 100 bp region. All-trans-retinoic acid decreased the luciferase activity of CD2AP promoter. Conclusion Putative Spl sites and DPE have important functions in the promoter activity of CD2AP.

Objective　To study the value of renal CT scan in evaluating split renal function.Methods　147 patients undergone CT scan from June 2009 to June 2011 were involved in this study.There were 73 cases of obstructive hydronephrosis and 74 cases of renal tumors.66 patients were males and 81 were females with a mean age of 53 years ( range 17 - 87 years).GFR detected by single-photon emission computed tomography (SPECT) was used as the reference of split renal function.The kidneys were divided into 3 groups according to the GFR:normal renal function (113 cases,GFR ≥ 34 ml/min),mildly impaired renal function (66 cases,GFR:20 -34 ml/min) and severely impaired renal function (41 cases,GFR ＜20 ml/min).One-way ANOVA and linear regression analysis were used to analyze the relationship between the results of CT scan and split renal functions.　Results　There were significant differences in the cortical thickness among the normal renal function,mildly impaired renal function and severely impaired renal function groups.The cortical thicknesses were (0.62 ±0.11) cm,(0.45 ±0.10) cm and (0.26 ±0.07) cm,respectively (P ＜ 0.01 ).The renal cortical thickness was strongly correlated with GFR (r =0.806,P ＜0.01 ).There were significant differences in the enhancement during the cortical phase among the 3 groups,which were (162.1 ±25.3) HU,(121.6 ±21.0) HU and (63.5 ±20.0) HU,respectively (P＜0.01).The enhancement during the cortical phase was strongly correlated with the GFR (r =0.851,P ＜ 0.01 ).The enhancement during the parenchymal phase and excretory phase was moderately correlated with the GFR ( r =0.467 and r =0.451,P ＜ 0.01 ).　Conclusions　The renal cortical tbickness and the enhancement during the cortical phase detected by CT scan might be useful for the clinical evaluation of split renal function.

Objective To clone and express the polymorphic membrane protein I(PmpI)gene of Chlamydia trachomatis(Ct), and to assess the immunogenicity and biological characteristics of PmpI. Methods A bioinformatic software was used to analyze the sequence of the PmpI gene of Ct, and to predict B cell epitopes in PmpI. With Ct serovar D DNA as the template, PCR was performed to amplify the N?terminal region(from position 90 to 1464)of the PmpI gene, which was cloned into a prokaryotic expression vector pET28a to express the recombinant protein PmpI. A Ni?ion affinity chromatography column was used to purify the recombinant protein, which was used to immunize New Zealand rabbits for preparation of polyclonal antibodies. Western blot analysis was conducted to evaluate the immunogenicity of this protein. Results A comprehensive analysis was carried out on the secondary structure, flexible regions, hydrophilicity plot, antigenic index and surface probability plot of the protein, which suggested that PmpI had 8 dominant B?cell epitopes. The product of PCR targeting the PmpI gene of Ct serovar D showed a total length of 1 375 bp. The recombinant prokaryotic expression vector pET28a?PmpI was successfully constructed. A recombi?nant protein with a relative molecular mass of approximately 50 000 was successfully expressed after isopropylβ?d?1?thiogalactopyranoside (IPTG) induction, and purified by affinity chromatography. Polyclonal antibodies against the recombinant protein were successfully prepared. Conclusion The N?PmpI protein of Ct serovar D is cloned and expressed successfully, laying a foundation for further studies on its biological functions.

Objective To explore the unique relationship between Willis circle and cerebral watershed infarction in a Chinese population. Methods A retrospective analysis of cerebral CT angiography was conducted in 471 non-cere?bral watershed infarctions and 93 MRI-diagnosed cerebral watershed infarctions (CWI)(including External CWI and In?ternal CWI)in Department of Neurology of our hospital and compare the related variations and types of Willis circle be?tween these groups. Results Compared with non-cerebral watershed infarctions, the prevalence of Uni-FTP (short for“fetal type of the Posterior cerebral artery”) in E-CWI (36.4%, P<0.05) and Bi-FTP in I-CWI (0%, P<0.05) was signifi?cantly higher in cerebral watershed infarctions. Conclusion FTP is probably an unique risk factor in Chinese patients with CWI.

Objective To investigate the effect of recombinant chlamydiaphage phiCPG1 capsid protein Vp1 on Chlamydia trachomatis(Ct) after Vp1 was co-cultured with Ct (reference strains and clinical strains).Methods The recombinant chlamydiaphage phiCPG1 capsid protein Vp1 was expressed and purified.Equal amount of Ct standard strains (E/UW-5/Cx and D/UW-3/Cx) or clinical strains,which had been incubated with Vp1 protein at the concentration of 53 μg/ml for 3 h at room temperature,were inoculated into McCoy.After cell culture,idione stain and transmission electron microscope were used to observe the effect of Vp1 on the Ct.The effect of Vp1 protein on the cell line McCoy was determined by MTT assay,the responses of Escherichia coli BL21 and DH5α toward Vp1 protein were determined using broth microdilution assays.Results Vp1 had obviously inhibitive effect on Ct,the inhibition ratios were about 40％-70％in clinical strains,72％ in reference strain D and 78％ in E,respectively.Abnormally enlarged RBs were observed after Vp1-treatment and Vp1 could arrest chlamydial developmental cycle using electron microscope.There was no effect of Vp1 on McCoy cells or bacteria BL21 or DH5α.Conclusion The recombinant Vp1 from phiCPG1 has obviously inhibitive effect on the growth of Ct,it will be helpful for the treatment of Ct infection in clinic.

Objective:To investigate the effectiveness of abdominal compression in tumor motion and the target volume, and analyze the suitable margins of planning target volume (PTV) for patients treated with lung-SBRT based on 4DCT.Methods:Patients diagnosed with peripheral pulmonary tumor were enrolled. The patients were divided into the whole group, upper-middle-lobe group (group A) and the lower-lobe group (group B). Each patient underwent 3DCT, 4DCT with abdominal compression (4DCT com) and 4DCT with free breath (4DCT free) scans. The GTVs were delineated and IGTVs on these images. PTV MIP 5 mm, PTV MIP 4 mm, PTV MIP 3 mm were constructed with a 5, 4, 3 mm margin in left-right (LR), anterior-posterior (AP) directions and cranial-caudal (CC) directions. Results:The median motion vector with compression reduced by 30.92% in whole group, increased by 3.42% in group A and reduced by 18.80% in group B, respectively. And there were no significant differences of TMA LR, TMA AP, TMA CC and motion vector by the Wilcoxon test ( P>0.05). The median sizes of IGTV MIP com , IGTV MIP free and IGTV10 com, IGTV10 free were 4.01, 5.36 cm 3and 6.59, 7.65 cm 3, with statistically significant difference ( Z=-3.45, -3.14, P<0.01). The median ratio of DI of IGTV CBCT com in PTV MIP 5 mm, PTV MIP 4 mm and PTV MIP 3 mm≥95% was 100%, 100% and 83.33%, respectively. Conclusions:The patients′ respiratory pattern changed with abdominal compression and abdominal compression is useful in reducing the size of IGTV MIP and IGTV10, which could reduce the target volume and protect the normal tissue. Adding a 4 mm margin to IGTV MIP com based on 4DCT account for respiration in SBRT is a tendency for precise radiotherapy.

Objective To discuss the diagnosis and treatment of normotensive pheochromocyto-ma. Methods The clinical data of 22 patients with normotensive pheochromocytoma were reviewed. Inclusion criteria for normotensive pheochromocytoma were no previous history of hypertension and episode of symptoms suggesting high blood pressure. The blood pressure on admission was 90-130/ 60-90 mm Hg with an average of 113/72 mm Hg. Seven patients were found adrenal mass by routine ultrasonic examination. Twelve patients presented with superior abdominal or flank pain. Four pa-tients were present with fatigue, and 2 patients had fever. Headache and palpitation were found in 1 patient. Most of patients were present with large and round mass with low density area in the center of the tumor by uhrosonography and CT. Four patients had elevated level of plasma epinephrine and nor-epinephrine. 24 hours urine CA and VMA were elevated in 5 and 4 patients respectively. Seven pa-tients were prepared with infusion preoperatively to expand intravascular volume, and 2 patients were given prazosin 1.5 mg/d for 5 to 7 days. Results During the operation, seventeen patients had ele-vated blood pressure and 5 patients had no changed. One of seven patients with preoperative prepara-tion had obvious hypertension during operation, and 11 of 15 patients without preoperative preparation had obvious hypertension. The tumors were removed successfully in 21 patients. All the patients were diagnosed pheochromocytoma pathologically. Twenty-one patients had normal blood pressure with no recurrence during the follow-up from 1 month to 7 years. Conclusions The patients with normotensive pheochromocytomas may have lower catecholamine in their plasma and urine. The application of α-blockers and the expanding intravascular volume before operation could be important for the patients safe.